Journal articles on the topic 'PALATAL SHAPE'
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Milenkovic, Jovana, Milica Vasiljevic, Nemanja Jovicic, Dragan Milovanovic, Dragica Selakovic, and Gvozden Rosic. "Criteria for the Classification of the Interradicular Septum Shape in Maxillary Molars with Clinical Importance for Prosthetic-Driven Immediate Implant Placement." Diagnostics 12, no. 6 (June 10, 2022): 1432. http://dx.doi.org/10.3390/diagnostics12061432.
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The aim of this study was to use cone-beam computed tomography (CBCT) to evaluate the morphometric properties of the interradicular septum (IRS) in the maxillary molar region that may be indicative for prosthetic-driven implant placement. Following the repetitive algorithm based on the visual identification of IRS shapes, we described the following IRS shapes: arrow, boat, drop, and palatal and buccal convergence. The incidence of IRS shapes showed significant differences for the first and second maxillary molars (the highest frequency for the arrow shape, and the lowest for the drop shape) with no significant difference between the molars. The most prominent width indicative for implant placement was observed in the palatal convergence shape, whereas the height criteria were the most satisfying in the buccal convergence-shaped IRS for both molars. Apart from the parameters in the coronal view, the image analysis in the axial view revealed that IRS surface area, required for the implant placement, was the most prominent in the palatal convergence shape for the first, and boat shape for the second molars. Our results showed the benefits of CBCT diagnostics in posterior maxilla morphometric analysis. IRS shape classification may be helpful in achieving more rapid and accurate planning for interventions in this region.
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Damara, Ovy Prima, Nila Kasuma, and Eni Rahmi. "PERBEDAAN BENTUK DAN UKURAN RUGAE PALATINA ANTARA MAMAK DAN KAMANAKAN LAKI-LAKI SUKU MINANGKABAU DI WILAYAH LUHAK NAN TIGO." Andalas Dental Journal 5, no. 1 (June 4, 2017): 8–19. http://dx.doi.org/10.25077/adj.v5i1.66.
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Forensic odontology in dentistry is used to identify victims. Several methods can be used, such as rugoscopy.
Rugoscopy is a victim identification method by evaluating the palatal rugae. Rugoscopy is very advantageous due to its low cost, fast results and practical nature. Palatal rugae is protected from trauma and high temperature due to its internal position in the oral cavity. Palatal rugae is an individualistic structure, though it bears several resemblance with the hereditary pattern due to the polygenic mechanism. The purpose of this research is to determine the difference of palatal rugae shape and size between uncle and nephew in Minangkabau ethnics. This study is an analytical observational study with a cross sectional approach. A total of 78 pairs of uncle and nephew of the Minangkabau ethnicity in Luhak Nan Tigo. Palatal rugae is classified using the Thomaz and Khutze classification. Data were analyzed by using Mann Whitney non-parametric statistical analysis. Data analysis show the palatal rugae shape of uncle and nephew from the Minangkabau ethnicity is dominated by a wavy shape, followed by curvy, straight, unified and circular shapes. The palatal rugae size of uncle and naphew from the Minangkabau ethnicity is dominated by primary size, followed by secondary and fragmenter size. Mann Whitney analysis revealed no significant difference of palatal rugae shape and size between uncle and nephew in Minangkabau ethnics (p>0,05), though there is a significant difference in the unified shape (p<0,05). Palatal rugae shape and size have a similar pattern with hereditery patterns, though not identical. Palatal rugae may be used as a secondary method of victim identification
Keywords : Rugoscopy, palatal rugae, uncle and nephew
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Beljic-Ivanovic, Katarina, and Vladimir Ivanovic. "Anatomical features of the palatal root canal in maxillary first molars and their influence on endodontic procedure." Serbian Dental Journal 55, no. 1 (2008): 43–53. http://dx.doi.org/10.2298/sgs0801043b.
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Introduction: More detailed acquaintance with specialist endodontic literature and treating complicated endodontic cases have revealed that the palatal root canal in maxillary first molars has different features from generally accepted simplicity. Aim: The aim of this study was to investigate the number, orientation and shape of the curvature of the palatal root canal in maxillary first molars, characteristics that may have great influence on the procedure and outcome of endodontic therapy. Materials and methods: Material consisted of 100 left and 100 right extracted human first maxillary molars. Extended access cavity was prepared, and canal orifices were detected using an endodontic probe. K-flex file no 15 or 20 was then introduced into the palatal root canal until the tip appeared at the apical foramen. The tooth was radiographed from buccal-oral (clinical) and mesial-distal (proximal) aspect under standardized conditions. On magnified images, the number and character of canal, orientation and shape of the curvature were determined. Results: One palatal root canal was found in each of 200 teeth. From the clinical projection, 60% of the palatal canals appeared curved and from the proximal 93.5% (p<0.05). Out of 120 curved canals from the clinical aspect, 66.7% were oriented distally and 33.3% mesially. From the proximal projection, of 187 curved canals 68,4% were oriented buccally, and 31,6% palatally. From the clinical projection, 49.2% were C-shaped, and 32.5 % with the J-shaped curvature. Only 18.3% of the palatal canals were with the S-shaped curvature (p<0.05). Conclusions: Upon presented results, practitioners may predict with high significance the character, orientation and curvature shape of the palatal root canal in maxillary first molars in the buccal-oral dimension which is not visible on clinical radiographs and, therefore, perform more successful endodontic treatment.
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Dellavia, Claudia, Chiarella Sforza, Angela Malerba, Laura Strohmenger, and Virgilio F. Ferrario. "Palatal Size and Shape in 6-Year Olds Affected by Hypohidrotic Ectodermal Dysplasia." Angle Orthodontist 76, no. 6 (November 1, 2006): 978–83. http://dx.doi.org/10.2319/111105-395.
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Abstract Objective: To analyze the size and shape of the hard tissue palate of Italian subjects with hypohidrotic ectodermal dysplasia (HED). Materials and Methods: The morphology and the dimensions of the hard tissue palate were analyzed in eight 6-year-old boys affected by HED. Four of the boys were completely edentulous and four partially dentate. Palatal landmarks were identified on stone casts and digitized with three-dimensional computerized electromagnetic instrumentation. Palatal length, slope, width, and maximum palatal height in both the sagittal and frontal planes were measured. From the coordinates of palatal landmarks, a mathematical equation of palatal shape was constructed, independent of size. HED palatal data were compared with reference data obtained from 12 healthy boys with a complete deciduous dentition. Results: Palatal length and height in both the sagittal and frontal planes were significantly reduced in HED as compared with control individuals. A less steep (not significant) palatal slope was found in HED than in reference subjects, whereas similar palatal width values were observed. All palatal measurements were larger in partially dentate than in edentulous patients. Both HED and edentulousness influenced palatal shape. The HED boys had a relatively lower palate than the reference boys. In the edentulous HED boys, the hard tissue palate was relatively lower than in partially dentate HED subjects. Conclusions: Palatal size and shape were significantly modified by the presence of hypohidrotic ectodermal dysplasia, and the major alterations were found in edentulous HED subjects.
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Kilpeläinen, Pauli V. J., and Maija T. Laine-Alava. "Palatal Asymmetry in Cleft Palate Subjects." Cleft Palate-Craniofacial Journal 33, no. 6 (November 1996): 483–88. http://dx.doi.org/10.1597/1545-1569_1996_033_0483_paicps_2.3.co_2.
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In subjects with different types of cleft palate, palatal shape and symmetry were evaluated utilizing the moiré contourography technique. The sample consisted of 95 subjects with cleft palate and 68 controls. The differences between cleft and control subjects in the transverse and anteroposterior location of the highest point of the palate, palatal axis angle, and the palatal index were assessed by analysis of variance. Effects of cleft type, gender, developmental stage of the dentition, missing teeth, and eight skeletal and pharyngeal cephalometric variables on palatal shape and symmetry were assessed using multiple-regression analyses. In comparison with the noncleft individuals, the cleft palate subjects showed parallel but clearly more remarkable asymmetry in palatal shape and position of the first maxillary molars. The anteroposterior location of the deepest point in the palate was more posterior, and the palate was relatively shallower. The severity of the cleft type affected both the anteroposterior and transverse position of the highest point in palatal morphology.
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Ferrario, Virgilio F., Chiarella Sforza, Johannes H. Schmitz, and Anna Colombo. "Quantitative Description of the Morphology of the Human Palate by a Mathematical Equation." Cleft Palate-Craniofacial Journal 35, no. 5 (September 1998): 396–401. http://dx.doi.org/10.1597/1545-1569_1998_035_0396_qdotmo_2.3.co_2.
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Objective To derive a three-dimensional mathematical description of normal human hard tissue palatal size and shape. Methods The maxillary dental casts of 30 adolescents free from respiratory problems, who had a complete (28 teeth) permanent sound dentition with normal occlusion, were studied. The x, y, z coordinates of several standardized palatal and dental landmarks were obtained with a computerized three-dimensional digitizer. Palatal landmarks were used to derive a mathematical equation of palatal shape in the frontal and sagittal planes. Palatal width, length, frontal and sagittal heights, and sagittal slope, as well as dental arch transverse and anteroposterior dimensions, were computed. Results Neither the size nor the shape of the palate was significantly influenced by gender. Only the intercanine distance was larger (p < .025) in males than in females. Conclusions Data collected in the present investigation could represent a first database for the quantitative description of normal human palatal morphology in subjects with a complete permanent dentition.
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Rania, Nada, Nila Kusuma, and Murniwati Murniwati. "PERBEDAAN BENTUK DAN UKURAN RUGAE PALATINA ANTARA AYAH DAN ANAK KANDUNG LAKI-LAKI SUKU MINANGKABAU DI WILAYAH LUHAK NAN TIGO." Andalas Dental Journal 5, no. 2 (December 5, 2017): 136–48. http://dx.doi.org/10.25077/adj.v5i2.80.
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Palatal rugae or plica palatinae transversae are irregular and asymmetrical ridges on mucosa membrane which extend laterally from incisive papilla and anterior of palatal raphe. Palatal rugae are protected by cheeks, lips, tongue and buccal pad from incineration and trauma. The use of palatal rugae as an alternative way to identify human is needed in many occurrences such as accident, criminal and disaster. Palatal rugae patterns are vary and not identical in each person but have some similarities within family. This can be caused by hereditary and polygenic inheritance mechanism of palatal rugae. This study aimed to identify palatal rugae pattern similarities between father and his biological son in Minangkabau ethnic. This study is a cross-sectional study. The samples used in this study were 78 pairs of fathers and their biological sons. Alginate impression material was used to record the upper jaw. The impressions were casted by type III dental stone . Palatal rugae were marked and the amount of rugae based on their shape and length classifications were recorded. The data were analyzed using Mann -Whitney test. Result showed that there was no significant difference between fathers’ and their biological sons’ palatal rugae amount based on their shape (p>0,05), but there was significant difference between the amount of primary rugae of fathers and their biological sons (p<0,05). The conclusion is there are no significant differences between fathers’ and th eir biological sons’ palatal rugae amount based on their shape. Palatal rugae pattern can be used as an alternative in human identification because of its individual characteristic and uniqueness.
Keywords: palatal rugae, Minangkabau ethnic, father and biological son
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Rania, Nada, Nila Kusuma, and Murniwati Murniwati. "PERBEDAAN BENTUK DAN UKURAN RUGAE PALATINA ANTARA AYAH DAN ANAK KANDUNG LAKI-LAKI SUKU MINANGKABAU DI WILAYAH LUHAK NAN TIGO." Andalas Dental Journal 6, no. 1 (December 5, 2018): 49–61. http://dx.doi.org/10.25077/adj.v6i1.80.
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Palatal rugae or plica palatinae transversae are irregular and asymmetrical ridges on mucosa membrane which extend laterally from incisive papilla and anterior of palatal raphe. Palatal rugae are protected by cheeks, lips, tongue and buccal pad from incineration and trauma. The use of palatal rugae as an alternative way to identify human is needed in many occurrences such as accident, criminal and disaster. Palatal rugae patterns are vary and not identical in each person but have some similarities within family. This can be caused by hereditary and polygenic inheritance mechanism of palatal rugae. This study aimed to identify palatal rugae pattern similarities between father and his biological son in Minangkabau ethnic. This study is a cross-sectional study. The samples used in this study were 78 pairs of fathers and their biological sons. Alginate impression material was used to record the upper jaw. The impressions were casted by type III dental stone . Palatal rugae were marked and the amount of rugae based on their shape and length classifications were recorded. The data were analyzed using Mann -Whitney test. Result showed that there was no significant difference between fathers’ and their biological sons’ palatal rugae amount based on their shape (p>0,05), but there was significant difference between the amount of primary rugae of fathers and their biological sons (p<0,05). The conclusion is there are no significant differences between fathers’ and th eir biological sons’ palatal rugae amount based on their shape. Palatal rugae pattern can be used as an alternative in human identification because of its individual characteristic and uniqueness.
Keywords: palatal rugae, Minangkabau ethnic, father and biological son
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Reinicke, Christine, Nicole Obijou, and Joachim Tränkmann. "The palatal shape of upper removable appliances." Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie 59, no. 4 (July 1998): 202–7. http://dx.doi.org/10.1007/bf01579164.
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Hassan, Fatima, Anum Baqar, Farnaz Ilyas, Farah Javed, Saman Hakeem, and Akbar Abbas. "The Pattern of Palatal Rugae in sub-population of Pakistani adults." Pakistan Journal of Medical and Health Sciences 15, no. 9 (September 30, 2021): 2157–60. http://dx.doi.org/10.53350/pjmhs211592157.
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Background: Despite the existence of the most reliable and authentic tools of personal identification such as fingerprints, dental, and DNA analysis, the palatal rugae are recommended as an adjuvant aid in forensic diagnosis. Palatal rugoscopy or palatoscopy aims to specify a person’s identity and gender discrimination. Aim: To determine the morphological pattern of palatal rugae considering gender. Settings and design: Cross-sectional study, calcorrugoscopy, chi-square test Material: This incorporated 360 subjects encompassing an equal ratio of the male and female genders. Undertaking the inclusion and exclusion criteria of the study, calcorrugoscopy technique was utilized in which maxillary casts were obtained through irreversible hydrocolloid impression material (Cavex cream alginate – fast set) and poured in type III dental stone. The assessed morphological parameters were shape and unification. Trobo’s classification and Thomas and Kotze’s criteria were used to assess shape and unification respectively to assess the qualitative aspect of palatal rugae. Descriptive analysis was generated in terms of frequencies, percentages, means, and standard deviations. Results: The most frequently occurred rugae pattern was sinuous followed by a line with divergent unification. Sexual dimorphism was not evident among the selected subjects regarding rugae shape and unification configuration.Moreover, the same trend regarding shape and unification was repeated on both sides of the palate, with no significant difference noted in number of palatal rugae undertaking both sides. Conclusions: Every individual possesses a unique rugae pattern irrespective of gender. Keywords: Cross- sectional, Adults, Gender dimorphism, Pakistan, Palatal rugae
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Sivakumar, Indumathi, Rachel Chua Hui Shien, Nur Lyanna Mahfuzah Binti Mohamad Johar, Sham Wern Xuan, and Sin Pi Xian. "Evaluation of oral stereognosis in completely edentulous patients with palatal tori." Journal of Oral Research 10, no. 1 (February 14, 2021): 1–8. http://dx.doi.org/10.17126/joralres.2021.009.
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Background: The corollary is not investigated in the completely edentulous patients with palatal tori. Objective: The aim of this study was to assess the oral stereognostic ability in completely edentulous patients with palatal tori. Material and Methods: Thirty-four completely edentulous patients aged 50 to 89 years were allocated to Group 1 (without palatal tori, n=18) and Group 2 (with palatal tori, n=16). The oral stereognostic test was conducted using 6 intraoral test pieces (circle/square/rectangle/triangle/plus/toroid) that were fabricated to standard dimensions using the light cure acrylic resin. Each test piece was placed in the patient’s mouth and was asked to manipulate the test piece between the tongue and the palate. The patients identified the shapes by matching them on a shape chart. Each correct identification was assigned a score of 1. The response time taken to identify each shape was recorded. Statistical computation was done using a chi - square test and Mann-Whitney U test. Results: Significant difference was observed in the overall scoring percentages between the 2 groups (p<0.05). Group 2 had lower oral stereognostic scores compared to group 1 (p<0.05). There was no statistically significant difference in the mean response time for identifying the shapes among the groups, however group 2 patients had longer response time. Conclusion: Oral stereognostic ability of the completely edentulous patients with torus palatinus was lower when compared to completely edentulous patients without tori.
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Ciusa, Veronica, Francesca Romana Dimaggio, Chiarella Sforza, and Virgilio Ferruccio Ferrario. "Three-Dimensional Palatal Development between 3 and 6 Years." Angle Orthodontist 77, no. 4 (July 1, 2007): 602–6. http://dx.doi.org/10.2319/053106-221.
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Abstract Objective: To measure palatal landmarks of healthy nonpatient children aged 3 to 6 years with a normal deciduous dentition and to evaluate palatal shape independent of size. Materials and Methods: Fifty-eight dental casts of children with a normal and complete deciduous dentition were obtained and digitized with a computerized 3D instrument. At all ages, male and female data did not differ (Student's t-test), so the pooled values were considered. Dimensions were compared between ages by analyses of variance. Results: Palatal slope and height increased significantly as a function of age (P < .001). Palatal length did not change with age (average: 23.1 mm). In the frontal plane, the intermolar width increased slightly with age by about 1.8 mm at the second molars, 1.1 mm at the first molars, and 0.9 mm at the canines. Palatal height in the frontal plane did not change in the posterior part of the palate, but decreased anteriorly. The intercanine distance increased by 0.9 mm with age. However, this change did not reach statistical significance. Conclusions: Between 3 and 6 years of age, palatal shape changed and became proportionally higher in both the frontal and sagittal planes.
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Brunner, Jana, Susanne Fuchs, and Pascal Perrier. "influence of the palate shape on articulatory token-to-token variability." ZAS Papers in Linguistics 42 (January 1, 2005): 43–67. http://dx.doi.org/10.21248/zaspil.42.2005.273.
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Articulatory token-to-token variability not only depends on linguistic aspects like the phoneme inventory of a given language but also on speaker specific morphological and motor constraints. As has been noted previously (Perkell (1997), Mooshammer et al. (2004)), speakers with coronally high "domeshaped" palates exhibit more articulatory variability than speakers with coronally low "flat" palates. One explanation for that is based on perception oriented control by the speaker. The influence of articulatory variation on the cross sectional area and consequently on the acoustics should be greater for flat palates than for domeshaped ones. This should force speakers with flat palates to place their tongue very precisely whereas speakers with domeshaped palates might tolerate a greater variability. A second explanation could be a greater amount of lateral linguo-palatal contact for flat palates holding the tongue in position. In this study both hypotheses were tested.
In order to investigate the influence of the palate shape on the variability of the acoustic output a modelling study was carried out. Parallely, an EPG experiment was conducted in order to investigate the relationship between palate shape, articulatory variability and linguo-palatal contact.
Results from the modelling study suggest that the acoustic variability resulting from a certain amount of articulatory variability is higher for flat palates than for domeshaped ones. Results from the EPG experiment with 20 speakers show that (1.) speakers with a flat palate exhibit a very low articulatory variability whereas speakers with a domeshaped palate vary, (2.) there is less articulatory variability if there is lots of linguo-palatal contact and (3.) there is no relationship between the amount of lateral linguo-palatal contact and palate shape. The results suggest that there is a relationship between token-to-token variability and palate shape, however, it is not that the two parameters correlate, but that speakers with a flat palate always have a low variability because of constraints of the variability range of the acoustic output whereas speakers with a domeshaped palate may choose the degree of variability. Since linguo-palatal contact and variability correlate it is assumed that linguo-palatal contact is a means for reducing the articulatory variability.
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Mucedero, Manuela, Matteo Rozzi, Alessia Milazzo, and Paola Cozza. "Morphometric analysis of the palatal shape and arch dimension in subjects with palatally displaced canine." European Journal of Orthodontics 41, no. 5 (January 2, 2019): 460–67. http://dx.doi.org/10.1093/ejo/cjy080.
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Summary Objectives The aim of this study is to analyse the morphological variations of the palate shape and maxillary arch dimension in a group of subjects with unilaterally or bilaterally impacted maxillary canines compared with a control group, using three-dimensional (3D) geometric morphometric. Materials The subject of this study consisted of pre-treatment records of 46 (18 males and 28 females) patients with one or both canines palatally displaced. A control group of 26 subjects was selected from a list of orthodontic patients at the same dental hospital. The subjects were divided in two study groups: unilateral palatally displaced canine (UPDC) and bilateral palatally displaced canine (BPDC). Study casts were scanned to analyse the palate’s shape and maxillary arch dimension. The 3D geometric morphometric analysis was used to study the entirety of the shape of the palate. The virtual 3D models were measured with a specific software to analyse the maxillary arch dimension. (VAM, Vectra; Canfield Scientific, Fairfield, New Jersey, USA). Results When comparing the groups with the geometric morphometrics analysis, no significant palatal shape change was found. For the analysis of linear measurements, only a significant reduction of intercanine width was found in the UPDC and BPDC groups when compared with the control subjects. Conclusions Patients with palatally displaced permanent canine showed no maxillary transverse constriction or variation in palatal vault morphology but the absence of permanent teeth was associated with a reduction in the intercanine width.
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Nidawani, Prakash, Arjita Dutta, Rohit Kumar Singh, Sidhartha, Nidhi K. Momaya, and Chandan Sengupta. "Management of suction cup induced palatal bone resorption in xerostomia patient with sunken cheek appearance: A therapeutic and esthetic treatment option- A case report." IP Annals of Prosthodontics and Restorative Dentistry 7, no. 4 (December 15, 2021): 220–25. http://dx.doi.org/10.18231/j.aprd.2021.043.
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Salivary reservoir in maxillary denture offers an effective, non-invasive approach in the treatment of edentulous patients afflicted with xerostomia. It is always desirable to have large volume reservoir in order to decrease the inconvenience of repeated refilling, however, increased bulk of palatal reservoir often leads to discomfort in speech, swallowing and acceptance of such prosthesis. In designing of size and shape of reservoir in the present case, large volume was achieved utilizing circular palatal resorption area, and proper shape was ensured by duplication of functional palatal contour. Adequate voluntary wetting of mouth was effected by “swallowing control saliva release” mechanism of the flexible reservoir lid. Sunken cheek appearance was addressed by using an easy, economical, and effective method of detachable cheek plumpers.
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Do, Duc Sang. "Two new species of the genus Stemmatopsis J. Mabille, 1887 (Gastropoda: Stylommatophora: Streptaxidae) from Vietnam and Laos." Ruthenica, Russian Malacological Journal 31, no. 1 (January 2, 2021): 21–25. http://dx.doi.org/10.35885/ruthenica.2021.31(1).3.
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The terrestrial snail genus Stemmatopsis is mainly distributed in northern Vietnam and northern Laos. In total five species of Stemmatopsis are discovered, including two described herein. Stemmatopsis arcuatolabris sp. nov. has a small distorted-ovate shell with last whorl protruded quite strongly from ventral side. It has a thickened, expanded peristome with bended palatal side having a bow-like shape. Stemmatopsis dolium sp. nov., has a small, oblique-ovate shell, an approximately quadrangular aperture, and a wave-like shape at the palatal side of peristome.
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Tiede, Mark K., Vincent L. Gracco, Douglas M. Shiller, Carol Espy‐Wilson, and Suzanne E. Boyce. "Perturbed palatal shape and North American English /r/ production." Journal of the Acoustical Society of America 117, no. 4 (April 2005): 2568–69. http://dx.doi.org/10.1121/1.4788555.
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Dalkiz, Mehmet, Demet Arslan, Riza Ali Tuncdemir, Selim M. Bilgin, and Halil Aykul. "Effect of different palatal vault shapes on the dimensional stability of glass fiber-reinforced heat-polymerized acrylic resin denture base material." European Journal of Dentistry 06, no. 01 (January 2012): 070–78. http://dx.doi.org/10.1055/s-0039-1698933.
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ABSTRACTObjective: The aim of this study was to determine the effect of different palatal vault shapes on the dimensional stability of a glass fiber reinforced heat polymerized acrylic resin denture base materialMethods: Three edentulous maxilla with shallow, deep and medium shaped palatal vaults were selected and elastomeric impressions were obtained. A maxillary cast with four reference points (A, B, C, and D) was prepared to serve as control. Point (A) was marked in the anterior midline of the edentulous ridge in the incisive papillary region, points (B) and (C) were marked in the right and left posterior midlines of the edentulous ridge in the second molar regions, and point (D) was marked in the posterior palatal midline near the fovea palatina media (Figure 2). To determine linear dimensional changes, distances between four reference points (A-B, A-C, A-D and B-C) were initially measured with a metal gauge accurate within 0.1 mm under a binocular stereo light microscope and data (mm) were recordedResults:No significant difference of interfacial distance was found in sagittal and frontal sections measured 24 h after polymerization and after 30 days of water storage in any of experimental groups (P>05). Significant difference of linear dimension were found in all experimental groups (P<.01) between measurements made 24 h after polymerization of specimens and 30 days after water storageConclusion: Palatal vault shape and fiber impregnation into the acrylic resin bases did not affect the magnitude of interfacial gaps between the bases and the stone cast surfaces. (Eur J Dent 2012;6:70-78)
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Seok, Hwa-Suk, Man-Sub Lee, Young-Hyuk Kwon, and Joon-Bong Park. "Relationship between The Shape of Palatal Vault and Tooth and The Thickness of Palatal Masticatory Mucosa." Journal of the Korean Academy of Periodontology 33, no. 3 (2003): 519. http://dx.doi.org/10.5051/jkape.2003.33.3.519.
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A. S. M. Hussein, Heba, and Nermeen A. S. Rady. "Study of Palatal Rugae Patterns and their Use in Sex and Ethnicity Identification in a Sample of Adult Egyptians and Malaysians." 99 3, no. 1 (February 15, 2021): 50–67. http://dx.doi.org/10.26735/thcv2791.
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Background: Palatal rugoscopy is the use of palatal rugae for identification of unknown persons. The majority of the population in Egypt consists of Egyptian people. However, some Malaysian people live in Alexandria city of Egypt for the purpose of education. So in case of mass disaster, there is a critical need for a reliable and easy method to differentiate between Malaysians and Egyptians. Aim: Study palatal rugae patterns in two diverse populations; Egyptians and Malaysians and its relation to sex and population difference. Subjects: Eighty students of Alexandria Faculty of Dentistry; forty Egyptians (20 females and 20 males) and forty Malaysians (20 males and 20 females). The age ranged 18-30 years. Results: Significant difference was noted between Malaysian males and females according to total number of rugae on both sides. Malaysians had significantly higher total rugae number on both sides than Egyptians. Curved shape was the predominant shape in the total sample. Significant difference was detected between Egyptians and Malaysians according to the predominant palatal rugae direction on both left and right sides. Egyptian females had significantly higher percentage of absent unification than Egyptian males. Linear regression models for sex and ethnicity identification were built up.
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Banabilh, S. M., A. R. Samsudin, A. H. Suzina, and Sidek Dinsuhaimi. "Facial Profile Shape, Malocclusion and Palatal Morphology in Malay Obstructive Sleep Apnea Patients." Angle Orthodontist 80, no. 1 (January 1, 2010): 37–42. http://dx.doi.org/10.2319/011509-26.1.
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Abstract Objective: To test the null hypothesis that there is no difference in facial profile shape, malocclusion class, or palatal morphology in Malay adults with and without obstructive sleep apnea (OSA). Materials and Methods: Subjects were 120 adult Malays aged 18 to 65 years (mean ± standard deviation [SD], 33.2 ± 13.31) divided into two groups of 60. Both groups underwent clinical examination and limited channel polysomnography (PSG). The mean OSA and control values were subjected to t-test and the chi square test. Results: Physical examination showed that 61.7% of the OSA patients were obese, and 41.7% of those obese patients had severe OSA. The mean body mass index (BMI) was significantly greater for the OSA group (33.2 kg/m2 ± 6.5) than for the control group (22.7 kg/m2 ± 3.5; P < .001). The mean neck size and systolic blood pressure were greater for the OSA group (43.6 cm ± 6.02; 129.1 mm Hg ± 17.55) than for the control group (35.6 cm ± 3.52; 114.1 mm Hg ± 13.67; P < .001). Clinical examination showed that the most frequent findings among OSA groups when compared with the control group were convex profiles (71.7%), Class II malocclusion (51.7%), and V palatal shape (53.3%), respectively; the chi square test revealed a significant difference in terms of facial profile and malocclusion class (P < .05), but no significant difference in palatal shape was found. Conclusion: The null hypothesis is rejected. A convex facial profile and Class II malocclusion were significantly more common in the OSA group. The V palatal shape was a frequent finding in the OSA group.
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Hormdee, Doosadee, Thanwarat Yamsuk, and Pipop Sutthiprapaporn. "Palatal Soft Tissue Thickness on Maxillary Posterior Teeth and Its Relation to Palatal Vault Angle Measured by Cone-Beam Computed Tomography." International Journal of Dentistry 2020 (September 9, 2020): 1–5. http://dx.doi.org/10.1155/2020/8844236.
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Objective. Analyzing palatal soft tissue thickness in cone-beam computed tomography (CBCT) images and evaluating the relationship between tissue thickness and palatal vault angulation. Methods. Out of 1,737 CBCT images, fifty-six images met the inclusion criteria and were included in this cross-sectional study. The palatal vault angle on the maxillary first molar was measured and divided the images into 3 groups. The soft tissue thickness between the maxillary first premolar and second molar was measured at a distance of 3, 6, 7, 8, and 9 mm from the cementoenamel junction. All the image measurements were performed using CBCT-viewer software. Result. In this study, 56 CBCT images with full permanent maxillary posterior teeth and absence of light scattering were found. The mean age of the patients was 31.59 ± 13.92 years. The moderate and deep palatal vault angle patterns had the greatest and least prevalence, respectively. The average thickness on shallow, moderate, and deep palatal vault groups was 4.02 ± 0.58, 3.75 ± 0.73, and 3.43 ± 0.38 mm, respectively. Furthermore, the mean palatal mucosal thickness was statistically different between the deep and shallow palatal vault angle groups (p<0.05, power of test 0.8). Based on the Pearson correlation coefficient, there was a negative correlation between the palatal mucosal thickness and palatal vault angle (p<0.05, power of test 0.85). Conclusion. A negative correlation between the palatal mucosal thickness and palatal vault angle was observed. Furthermore, this study suggested that the shape of the palatal vault can be one of the supporting data for evaluating the graft dimensions.
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Koshak, Lamis K., Declan T. Millett, Niamh Kelly, Grant T. McIntyre, and Michael S. Cronin. "Are facial, maxillary arch and incisor dimensions related in patients with a unilaterally impacted palatal canine? A prospective investigation." Australasian Orthodontic Journal 38, no. 1 (March 28, 2022): 120–29. http://dx.doi.org/10.2478/aoj-2022-0014.
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Abstract Objective To identify and determine the relationship between facial, maxillary arch and incisor dimensions of patients presenting with a unilaterally impacted palatal canine. Methods Prospective referrals over one calendar year of patients identified with a unilaterally impacted palatal canine were compared with prospectively recruited control subjects. Canine location was determined radiographically and re-confirmed two weeks later. Facial, maxillary arch and incisor dimensions were assessed. Intra-examiner reproducibility was re-assessed using randomly selected images (20%, n = 40). General linear models were applied for inter-group comparisons incorporating Bonferroni adjustment with categorical parameters assessed using Fisher’s exact test (SAS®, Version 9.4, SAS.com). Inter-class correlation coefficients were calculated for relationships between the variables. Results Fifty-four patients (37 females; 17 males) presenting with a unilaterally impacted palatal canine [mean age 14.5 (SD 1.7) years] and 54 control subjects (37 females, 17 males) [mean age 14.3 (SD 2.2) years] were recruited. Measurement error was small for landmark data (0.58 mm), palatal depth (0.09 mm), palatal area (0.42 mm²) and Bolton ratio (0.14%). For facial, maxillary arch and tooth shape assessments, landmark error was 0.05 mm with complete agreement for classification. The mean nasal basal width was smaller in the unilaterally impacted palatal canine group compared with the control group (P < 0.0001) but face shape distribution and face ratio were similar (both P > 0.05). The mean anterior Bolton ratio was larger in the impacted canine group (P < 0.01). No differences were recorded between groups for other parameters (all P > 0.05). No positive correlations were identified between the variables. Conclusions Patients with a unilaterally impacted palatal canine had a narrower mean nasal basal width and a larger mean anterior Bolton ratio compared to a control group but the clinical significance of the differences was considered minor. Facial, maxillary arch and incisor dimensions were neither individually nor collectively correlated with a palatal canine which may lend support to a genetic aetiology.
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Elizondo, Ricardo, Manuel O. Lagravère, Esthela Flores, and Nora Letechipía. "Presurgical Preparation of Infants With Unilateral Cleft Lip and Palate: The SAC-PP-MR Innovative Technique." Cleft Palate-Craniofacial Journal 56, no. 3 (June 15, 2018): 408–14. http://dx.doi.org/10.1177/1055665618780980.
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In this article, we demonstrate an effective, cheap, and fast way to shape the nasal alar cartilage in patients with unilateral cleft lip and palate. This technique straightens the vomer and brings the philtrum, columella, premaxilla, and the maxillary frenum to the midsagittal plane, while the alveolar ridges are shaped and positioned. This reduces the lip and palatal cleft to zero even in a 4-week period.
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Choi, Jimyung, Jisun Shin, Miran Han, Junhaeng Lee, Jongsoo Kim, and Jongbin Kim. "A Study on Various Sizes and Volumes of the Palate among the Korean Population in Mixed Dentition." JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY 49, no. 3 (August 31, 2022): 329–39. http://dx.doi.org/10.5933/jkapd.2022.49.3.329.
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The purpose of this study was to compare the palatal dimensions (volume, width, length, and height) in different malocclusions (Class I, II, and III) in mixed dentition using a three-dimensional digital scanner. The study was performed on 30 selected casts from 1400 casts that were taken at the Department of Pediatric Dentistry at Dankook University. Casts consisted of Class I, II, and III malocclusion groups in Hellman’s dental age IIIA. The mean age was 8 years and 6 months ± 11 months. Each cast was scanned by three-dimensional digital scanner, Medit T710 (Medit, Seoul, Korea), and shaped into the three-dimensional image and calculated palatal dimensions using the Plan T program (SMD solution, Seoul, Korea). The values were statistically compared and evaluated by Kruskal-Wallis followed by the Mann-Whitney test. According to our results, subjects with Class II malocclusion showed lower palatal width and longer palatal length compared to those with Class I and Class III. For palatal height, Class III malocclusion subjects in mixed dentition exhibited a larger number than Class II and Class I. Lastly, for palatal volume, compared to other malocclusions, Class III showed higher results; however, there were no significant differences. The form of the palate differs in types of malocclusions and understanding of these differences is important in clinical significance. Based on this study, the understanding of the relationship between the shape of the palate and the skeletal pattern provides useful information about orthodontic treatment plans, early diagnosis of malocclusion, and morphological integration mechanisms. Orthopedic treatment in the maxilla should be performed during early and intermediate mixed dentition to enhance treatment efficiency.
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Böhmer, Christine, and Estella Böhmer. "Skull Shape Diversity in Pet Rabbits and the Applicability of Anatomical Reference Lines for Objective Interpretation of Dental Disease." Veterinary Sciences 7, no. 4 (November 20, 2020): 182. http://dx.doi.org/10.3390/vetsci7040182.
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Acquired dental problems are among the most frequently encountered diseases in pet rabbits. However, early symptoms are often overlooked because the affected animals first appear completely asymptomatic. Alterations from anatomical reference lines according to Böhmer and Crossley applied to standard skull X-ray images, have been shown to be indicative of tooth health problems in pet rabbits. Despite its proven usefulness, there are exceptions in which the anatomical reference lines appear not to be suitable for application. We addressed this issue by quantifying the cranial morphology of a large data set of pet rabbit patients (N = 80). The results of the morphometric analyses revealed considerable diversity in skull shape among the typical pet rabbits, but variance in only a few parameters influences the applicability of the anatomical reference lines. The most substantial parameter is the palatal angle. Specimens in which the anatomical reference lines could not be applied, have a rather large angle between the skull base and the palatal bone. We recommend to measure the palatal angle before applying the anatomical reference lines for objective interpretation of dental disease. Pet rabbits with a palatal angle larger than 18.8° are not strictly suitable for the successful application of the anatomical reference lines.
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Almasudi, Rabia, Ganesh Somashekarachar, Nagabhushana Doggalli, Meenakshi Srinivasa Iyer, Sowmya Srinivas, and Anupama Aradhya. "Evaluation and Comparison of Different Palatal Rugae Patterns between Dentulous and Edentulous Population of Mysuru City – A Preliminary Forensic Survey." Journal of Evolution of Medical and Dental Sciences 10, no. 25 (June 21, 2021): 1910–16. http://dx.doi.org/10.14260/jemds/2021/394.
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BACKGROUND Forensic odontology is a branch of dentistry which deals with appropriate handling and examination of dental evidences and with the proper evaluation and presentation of dental findings in the interest of justice. Identification of an individual is a prerequisite for certification of death and for personal, social and legal reasons. Palatal rugae are permanent and unique to each person, and can be used by clinicians and scientists to establish identity. It can be of special interest in edentulous cases and also in certain conditions, such as burned bodies or bodies that underwent severe decomposition. Thus the uniqueness, postmortem resistance, overall stability and additionally low utilization cost makes palatal rugae ideal forensic identification parameters. We wanted to compare the various palatal rugae patterns between dentate and edentulous subjects and also determine the comparison of the distribution of rugae number, length, shape, direction, unification between dentate and edentulous subjects. METHODS The study sample consisted of 60 subjects, 30 dentulous and 30 edentulous from JSS Dental College & Hospital, Mysuru. The study group was equally divided between the sex, and was observed for number, length, shape, direction and unification of all palatal rugae. RESULTS The total number of rugae was higher in the dentulous group than in the edentulous group. In edentulous group, shorter lengths, lesser complexity rugae were seen compared to dentulous subjects. The total number of rugae on the right side in dentulous casts were 4.20 ± 1.06, while the total number on right side in Edentulous casts were 4.16 ± 0.79. On the left side mean total number of rugae in dentulous casts was 4.46 ± 0.79 whereas the mean total number of rugae in edentulous casts was 3.76 ± 0.77. CONCLUSIONS Palatal rugae pattern changed greatly after aging and loss of teeth regardless of time of edentulism and wearing denture. KEY WORDS Dentulous, Edentulous, Palatal Rugae, Forensic Identification
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TANAKA, A., Y. KODAIRA, K. ISHIZAKI, and K. SAKURAI. "Influence of palatal surface shape of dentures on food perception." Journal of Oral Rehabilitation 35, no. 10 (October 2008): 715–21. http://dx.doi.org/10.1111/j.1365-2842.2008.01861.x.
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Morris, Jack C., Zafrulla Khan, and J. Anthony von Fraunhofer. "Palatal shape and the flexural strength of maxillary denture bases." Journal of Prosthetic Dentistry 53, no. 5 (May 1985): 670–73. http://dx.doi.org/10.1016/0022-3913(85)90018-6.
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Radojicic, Julija, Tatjana Tanic, and Zorica Blazej. "Application of palatal RB obturator in babies with isolated palatal cleft." Vojnosanitetski pregled 66, no. 11 (2009): 914–19. http://dx.doi.org/10.2298/vsp0911914r.
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Background. Isolated cleft of secondary palate has a specific clinical picture due to a wide communication between the mouth and nose cavity. As a consequence of that, babies born with this malformation are often subject to infections of the upper bronchial tubes, middle ear, speech disorders, and certainly the most difficult existential problem they face at the very beginning of their lives, the impossibility of suckling (breast feeding). Such babies have to be fed with gastric probe. The difficulties in their nutrition have often been described in literature, yet a singular attitude toward early orthodontic therapy has not been adopted still. The aim of the paper was to describe a design and application of obturator immediately after the birth of a baby with isolated palatal cleft, and the role in feeding. Case report. We presented a female neonate, born on 27th December 2007, with a wide fissure in the shape of the letter U over the entire secondary palate. The baby was referred to the Stomatology Clinic due to nutrition impossibility. To avoid feeding with gastric probe, the formation of RB obturator was performed (artificial palate). Hereby, the procedure of obturator making with an explanation of its function is presented. Conclusion. The application of RB obturator and the necessary education of parents have a major role in shortening the time of breast feeding and increasing the amount of food intake and, thus, for the normal growth and development of newborn infants with isolated palate cleft.
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Li, Yanfeng, Fuli Wang, Pin Hu, Jiadong Fan, Yishi Han, Bin Liu, Tao Liu, Chunhao Yang, and Xiangmin Gu. "Feasibility of Shape-Memory Ni/Ti Alloy Wire Containing Tube Elevators for Transcrestal Detaching Maxillary Sinus Mucosa: Ex Vivo Study." Cellular Physiology and Biochemistry 40, no. 5 (2016): 944–52. http://dx.doi.org/10.1159/000453152.
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Background: Osteotome sinus floor elevation is a less invasive approach to augment an insufficient alveolar bone at the posterior maxilla for dental implantation. However, this approach has some limitations due to the lack of sinus lift tools available for clinical use and the small transcrestal access to the maxillary sinus floor. We recently invented shape-memory Ni/Ti alloy wire containing tube elevators for transcrestal detaching maxillary sinus mucosa, and developed goat ex vivo models for direct visualizing the effectiveness of detaching sinus mucosa in real time during transcrestal maxillary sinus floor elevation. Methods: We evaluated our invented elevators, namely elevator 012 and elevator 014, for their effectiveness for transcrestal detaching maxillary sinus mucosa using the goat ex vivo models. We measured the length of sinus mucosa detached in mesial and distal directions or buccal and palatal directions, and the space volume created by detaching maxillary sinus mucosa in mesial, distal, buccal and palatal directions using the invented elevators. Results: Elevator 012 had a shape-memory Ni/Ti alloy wire with a diameter of 0.012 inch, while elevator 014 had its shape-memory Ni/Ti alloy wire with a diameter of 0.014 inch. Elevator 012 could detach the goat maxillary sinus mucosa in the mesial or distal direction for 12.1±4.3 mm, while in the buccal or palatal direction for 12.5±6.7 mm. The elevator 014 could detach the goat maxillary sinus mucosa for 23.0±4.9 mm in the mesial or distal direction, and for 19.0±8.1 mm in the buccal or palatal direction. An average space volume of 1.7936±0.2079 ml was created after detaching the goat maxillay sinus mucosa in both mesial/distal direction and buccal/palatal direction using elevator 012; while the average space volume created using elevator 014 was 1.8764±0.2366 ml. Conclusion: Both two newly invented tube elevators could effectively detach the maxillary sinus mucosa on the goat ex vivo sinus models. Moreover, elevator 014 has advantages over the elevator 012 for the capability to detach sinus mucosa.
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Pavoni, Chiara, Valeria Paoloni, Luis Tomas Huanca Ghislanzoni, Giuseppina Laganà, and Paola Cozza. "Geometric morphometric analysis of the palatal morphology in children with impacted incisors: A three-dimensional evaluation." Angle Orthodontist 87, no. 3 (October 20, 2016): 404–8. http://dx.doi.org/10.2319/071716-557.1.
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ABSTRACT Objective: To analyze variations in palatal morphology in subjects presenting unilaterally impacted maxillary permanent central incisors compared with a control group of subjects without eruption anomalies using a three-dimensional (3D) analysis. Materials and Methods: Twenty-six white subjects (10 girls and 16 boys; mean age 9.5 ± 1.5 years) with unilaterally impacted maxillary permanent central incisors (impacted incisor group [IIG]) were compared with a control group (CG) of 26 subjects (14 girls and 12 boys, mean age 8.7 ± 1.6 years) presenting no eruption disorders. For each subject, dental casts were taken and the upper arch was scanned using a 3D laser scanner. To study the entirety of the shape of the palate in any point of the surface, 3D geometric morphometrics was applied. Results: Subjects with impacted maxillary incisors showed skeletal adaptations of the maxilla. In the IIG, both the superior palatal region and lateral palatal surface showed significantly different morphology when compared with CG, with a narrower and higher palatal vault. Conclusion: The absence of maxillary central incisors over the physiological age of eruption influenced the development of the palatal morphology compared with subjects without eruption anomalies.
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Jang, Insan, Motohiro Tanaka, Yoshiyuki Koga, Seiko Iijima, Joseph H. Yozgatian, Bong Kuen Cha, and Noriaki Yoshida. "A Novel Method for the Assessment of Three-Dimensional Tooth Movement during Orthodontic Treatment." Angle Orthodontist 79, no. 3 (May 1, 2009): 447–53. http://dx.doi.org/10.2319/042308-225.1.
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Abstract Objective: To (1) evaluate the stability of palatal rugae as landmarks for superimposition of dental casts and (2) establish a three-dimensional superimposition method of maxillary dental casts for analyzing orthodontic tooth movement. Materials and Methods: The sample consisted of dental casts obtained from 10 patients treated with extraction of bilateral maxillary first premolars and placement of three palatal miniscrews as anchorage for retraction of the anterior teeth. Dental casts were measured by means of laser surface scanning system, and three-dimensional images were reconstructed. Serial dental casts were superimposed on the three miniscrews as registration landmarks (miniscrew-superimposition method), and the displacement of each palatal ruga point during the closure of extraction spaces was measured. Displacement of the central incisors was measured by the miniscrew-superimposition method and the proposed superimposition technique (ruga-palate-superimposition method). Correlation analysis and paired t-tests were performed to determine whether a significant difference existed between the measurements of the two superimposition methods. Results: The medial points of the third palatal rugae and the shape of the palatal vault were stable throughout the treatment. The displacement of the central incisors measured using the ruga-palate-superimposition method showed no significant difference with that measured using the miniscrew-superimposition method. Conclusion: The maxillary dental casts can be reliably superimposed on the medial points of the third palatal rugae and the palatal vault as reference landmarks.
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Montaruli, Graziano, Simona Virgilio, Michele Laurenziello, Michele Tepedino, and Domenico Ciavarella. "Maxillary Transverse Deficit: A Retrospective Study of Two Biologically Oriented Devices through a Digital Workflow." Bioengineering 9, no. 1 (January 12, 2022): 31. http://dx.doi.org/10.3390/bioengineering9010031.
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The aim of this retrospective study was to compare the efficiency of two biologically oriented devices in achieving maxillary expansion: Rapid Palatal Expander (RPE) and Nitanium Palatal Expander-2 (NPE-2). Thirty-six subjects, divided in two equal groups, were included in this study. Maxillary dental arches were scanned using Trios 3 shape®, in order to perform a digital analysis of 3D models. The models were analyzed using Autodesk Fusion 360® and Meshmixer®. All data obtained from analysis of pre-treatment and post-treatment models were processed using Prism® software. The anterior arch width, the posterior arch width, the palate height, and palatal surface were measured to evaluate differences between the devices. A D’Agostino–Pearson normality test was done to check the data. A non-parametric t-test was used to compare the anterior and posterior arch width between the two groups, while a parametric t-test was used to compare the palatal height measurements between the two groups. The p-value was calculated. The limit value fixed was 0.05. Palatal width and surface showed a significant increase in both groups, but no significant changes in palatal height were found. The data processed showed that there were no significant differences between the devices (ΔREP−ΔNPE) in variation of anterior arch width, there were no significant differences in variation of posterior arch width and there were no significant differences in variation of palatal height. The comparison between the two groups showed that both methods were equally effective in correcting transverse defect.
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Reddy, B. Madan Mohan, M. Himabindu, B. Indira Padmaja, M. Sunil, and N. Raja Reddy. "Palatal Vault Depth Influence on the Flexural Strength of Two Heat Cure Acrylic Denture Base Resins: An in vitro Study." Journal of Contemporary Dental Practice 14, no. 6 (2013): 1131–36. http://dx.doi.org/10.5005/jp-journals-10024-1463.
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ABSTRACT Complete dentures often fracture during normal masticatory function. The reason could be due to the shape of the palate, i.e. deep, medium or shallow palatal vault. This in vitro study was performed to determine the relationship of palatal vault depth and flexural strength of two different permanent denture base resins. Edentulous maxillary casts of patients were collected from the department of prosthodontics, among these the cast with the deepest palatal vault was selected. The specimens were then subjected for flexural strength on universal testing machine. The results revealed that the denture bases fabricated on medium palatal vault depth were best in the flexural strength and denture bases on shallow palatal vault depth faired the least. Among the resins the denture bases fabricated using high impact heat cure resin, were better than the denture bases fabricated using regular heat cure resin. All these results were statistically significant except the results between the regular heat cure denture bases and high impact heat cure denture bases fabricated on the deep palatal vault depth. Also the comparison of fracture energies of denture bases fabricated on deep palatal vault with high impact heat cure resin to denture bases fabricated on medium and shallow palatal vaults with high impact heat cure resin were not significant. It was also observed that all the specimens have fractured in the midline. Clinical implications Palatal vault depth significantly affected the flexural strength of heat cure resin. The most frequent mechanical failure of heat cure resin is fracture especially at the midline. The denture bases fabricated using high impact heat cure resin had best flexural strength than the denture bases fabricated using regular heat cure resin which reduced the fractures. How to cite this article Reddy BMM, Himabindu M, Padmaja BI, Sunil M, Reddy NR. Palatal Vault Depth Influence on the Flexural Strength of Two Heat Cure Acrylic Denture Base Resins: An in vitro Study. J Contemp Dent Pract 2013;14(6):1131-1136.
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Ortug, A., and M. Uzel. "Greater palatine foramen: assessment with palatal index, shape, number and gender." Folia Morphologica 78, no. 2 (May 28, 2019): 371–77. http://dx.doi.org/10.5603/fm.a2018.0088.
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Nayak, Preethi, Ashith B. Acharya, A. T. Padmini, and H. Kaveri. "Differences in the palatal rugae shape in two populations of India." Archives of Oral Biology 52, no. 10 (October 2007): 977–82. http://dx.doi.org/10.1016/j.archoralbio.2007.04.006.
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Mucedero, Manuela, Matteo Rozzi, Giulia Di Fusco, Carlotta Danesi, and Paola Cozza. "Morphometric analysis of the palatal shape and arch dimension in subjects with buccally displaced canine." European Journal of Orthodontics 42, no. 5 (November 27, 2019): 544–50. http://dx.doi.org/10.1093/ejo/cjz091.
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Summary Objectives To analyse morphological variations of the palate shape and maxillary arch dimension between a group of subjects with unilaterally or bilaterally buccally impacted maxillary canines and a control group (CG) by means of 3D geometric morphometric (GMM). Materials Pre-treatment records of 50 subjects (16 males and 34 females; mean age 13.9 years ± 1.8) with one or both canines buccally displaced were collected retrospectively. A CG of 50 subjects was selected from a list of orthodontic patients at the same dental hospital. The experimental group, buccally displaced canine (BDC) was divided in two groups: unilateral buccally displaced canine (UBDC) and bilateral buccally displaced canine (BBDC). To analyse the palate’s shape and maxillary arch dimension, study casts were scanned. To study the entirety of the palatal shape, 3D GMM analysis was used. To analyse the maxillary arch dimension, the virtual three-dimensional models were measured with a specific software (VAM, Vectra, Canfield Scientific, Fairfield, New Jersey, USA). Results When comparing the groups with the GMM analysis, patients with BDC showed a statistically significant narrower and higher palatal vault. About the analysis of linear measurements, the intercanine width, the anterior and posterior segment length were significantly smaller in BDC, UBDC, and BBDC subjects when compared with the controls and there were no differences between UBDC versus BBDC groups. Conclusions Patients with buccally displaced permanent canine tended to have maxillary transverse constriction and variation in palatal vault morphology. The morphometric variation of the palatine vault and arch dimensions can be considered a clinical factor associated with the presence of BDC.
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Rasyid, Nolista Indah, Prihandini Iman, and JCP Heryumani. "Efektivitas Busur Multiloop Edgewise Pada Kasus Crowding Berat Disertai Palatal Bite." Majalah Kedokteran Gigi Indonesia 21, no. 2 (December 1, 2014): 191. http://dx.doi.org/10.22146/majkedgiind.8775.
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Mekanisme perawatan dengan Multiloop Edge Wise (MEAW) efisien dalam melakukan koreksi maloklusi berat dengan defleksi tekanan yang sangat rendah. Tujuan pemaparan kasus adalah evaluasi perawatan crowding berat disertai palatal bite menggunakan multiloop edgewise archwire. Seorang laki laki 15 tahun dengan maloklusi Angle kelas I tipe 1,4, skeletal kelas I dengan bimaksilari retrusif disertai bidental protrusif. Crowding berat pada regio anterior dan posterior serta palatal bite pada gigi 12, 11, 21, 22 terhadap 42, 41, 31, 32, scissor bite pada gigi 15 terhadap 45, overjet 6,21 mm dan overbite 6,04 mm. Bentuk lengkung gigi pada rahang atas parabola asimetri sedang pada rahang bawahomega asimetri. Lengkung gigi regio posterior mengalami kontraksi lateral dan lengkung gigi kearah anterior mengalami protraksi. Perawatan kasus dilakukan dengan menggunakan alat cekat teknik Edgewise dengan multiloop pada regio anterior dan posterior disertai pencabutan empat gigi premolar pertama. Hasil perawatan setelah 6 bulan menunjukkan crowding, palatal bite, dan scissor bite terkoreksi. Overjet menjadi 4,20 mm dan overbite 3,90 mm. Bentuk lengkung pada rahang atas dan rahang bawah menjadi parabola simetris. Jarak intermolar rahang atas bertambah sebesar 2,11 mm dan rahang bawah bertambah sebesar 1,22 mm. Effectiveness of multiloop edge wise arch in severe crowded case accompanied by palatal bite. MEAW appliance is a tehnique which is able to efficiently treat many cases including severe crowding with very low load deflection. The objectives of this study is to evaluate the treatment of severe crowding malocclusion with palatal bite using multiloop edgewise archwire. A 15 years old man with Angle class I type 1,4 malocclussion, class I sceletal with bimaxillary retrusion and bidental protusion. Severe crowding malocclusion in anterior and posterior region, palatal bite in 12, 11, 21, 22 to 42, 41, 31, 32, scissor bite in 15 to 45, overjet 6,21 mm and overbite 6,04 mm. asymmetry in both of dental arch, but the shape of the upper arch was parabola and lower arch was omega. Contraction of dental arch in posterior region and protraction in anterior region. This case was treated with extraction of four first premolar using multiloop edgewise arcwire tehnique, the loops were placed in anterior and posterior region. After six month of treatment the result showed that MEAW could correct severe crowding, palatal bite and scissor bite. Overjet became 4,20 mm and overbite became 3,90 mm. Shape of upper and lower dental arch became symmetric parabola. Upper intermolar increased 2,11 mm and lower intermolar 1,22 mm.
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Almaqrami, Bushra Sufyan, Huwate Saireke, Wang Xiying, Peter Ngan, Cao Hui, Hui Xiong, and Hong He. "Custom fabrication of cast splint microimplant-assisted rapid palatal expansion appliances for treatment of maxillary deficiency in young adults." APOS Trends in Orthodontics 11 (October 5, 2021): 247–53. http://dx.doi.org/10.25259/apos_23_2021.
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Background: The objective of this article was to illustrate the process in the fabrication of a custom cast splint Microimplant-Assisted Rapid Palatal Expansion (MARPE) appliance for treatment of maxillary deficiency in young adults. Findings: The fabrication of a custom-made MARPE appliance allows the casting base to design according to the shape of the patient’s palate close to the palatal mucosa. In this new design, one end consists of a casting body, inserting hole, and teeth retention device (circumferential rings) connected to the other end by a jackscrew. Connection of all parts in the integral casting unit increases the strength of the expansion appliance and avoids distortion, deformation, or damage to the palatal mucosa due to increased resistance from the oromaxillofacial area. Conclusion: This custom design can improve the clinical outcome of maxillary expansion, especially in patients with narrow and high-arched palates.
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Almaqrami, Bushra Sufyan, Huwate Saireke, Wang Xiying, Peter Ngan, Cao Hui, Hui Xiong, and Hong He. "Custom fabrication of cast splint microimplant-assisted rapid palatal expansion appliances for treatment of maxillary deficiency in young adults." APOS Trends in Orthodontics 11 (October 5, 2021): 247–53. http://dx.doi.org/10.25259/apos_23_2021.
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Background: The objective of this article was to illustrate the process in the fabrication of a custom cast splint Microimplant-Assisted Rapid Palatal Expansion (MARPE) appliance for treatment of maxillary deficiency in young adults. Findings: The fabrication of a custom-made MARPE appliance allows the casting base to design according to the shape of the patient’s palate close to the palatal mucosa. In this new design, one end consists of a casting body, inserting hole, and teeth retention device (circumferential rings) connected to the other end by a jackscrew. Connection of all parts in the integral casting unit increases the strength of the expansion appliance and avoids distortion, deformation, or damage to the palatal mucosa due to increased resistance from the oromaxillofacial area. Conclusion: This custom design can improve the clinical outcome of maxillary expansion, especially in patients with narrow and high-arched palates.
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Kumar, Sathish, N. Balaji, V. Shanthi, MK Sumathi, and Priya Vendhan. "Palatal Rugoscopy among Puducherry Population." Journal of Contemporary Dental Practice 13, no. 3 (2012): 401–4. http://dx.doi.org/10.5005/jp-journals-10024-1158.
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ABSTRACT Background Human identification is one of the most challenging subjects that man has been confronted with. The fingerprints and DNA comparison are the most commonly used techniques in human identification. Palatoscopy is one of the recently developing methods to identify a victim-based on the palatal rugae pattern. Aims and objectives The aim of the study was to analyze the different rugae pattern in Puducherry population and to find whether palatoscopy is a useful tool in human identification and sex determination. Materials and methods The studies consist of 100 male and female patients between the age group of 20 to 35 years. The rugae pattern was divided assessed based on Kotze classification. Chi-square test and one-way analysis was used to study the statistical significance. Results Wavy pattern appeared to be the most predominant pattern followed by curved, straight, branched and circular pattern in both male and female patients. The shape and number of rugae pattern is similar in male and females. Conclusion The present study concludes that wavy pattern appear to be most common rugae pattern among Puducherry population. No significant difference in rugae pattern was noted among the male and female group. Rugae pattern is unique to each individual and can be an effective tool in human identification. How to cite this article Kumar S, Vezhavendhan N, Shanthi V, Balaji N, Sumathi MK, Vendhan P. Palatal Rugoscopy among Puducherry Population. J Contemp Dent Pract 2012;13(3): 401-404.
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Shrestha, Ashish, Sushmita Shrestha, Vinay Marla, and Navin Agrawal. "Patterns of palatal rugae as an indicator of identification in young adults of Nepal." Journal of College of Medical Sciences-Nepal 13, no. 2 (July 17, 2017): 241–45. http://dx.doi.org/10.3126/jcmsn.v13i2.17711.
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Background & Objectives: The current study was conducted to identify and determine the association between gender and characteristics of palatal rugae in Nepalese population. Materials & Methods: Characteristics of palatal rugae including number, length, shape, direction and unification were analyzed in 100 maxillary dental plaster casts. Association between palatal rugae and gender were tested using chi square analysis and statistical descriptors were identified using SPSS 10.0 keeping the level of statistical significance at p<0.05. Results: A total of 997 rugae were traced. Females were found to have more rugae than males though statistically not significant. In the present study significant difference in secondary (p=0.012), fragmentary (p=0.005), straight (p=0.001) and perpendicular directed (p<0.0001) palatal rugae were observed, which were higher among females. Forward directed followed by backward were predominantly observed and more among females. Wavy followed by curved, straight and circular rugae was the most prevalent shape.Conclusion: No two individual had similar rugae pattern. They can be used to identify people and differentiate between males and females in addition to other tools of identification and has great application in forensic science.
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Weirich, Melanie, and Susanne Fuchs. "Palatal Morphology Can Influence Speaker-Specific Realizations of Phonemic Contrasts." Journal of Speech, Language, and Hearing Research 56, no. 6 (December 2013): 1894–908. http://dx.doi.org/10.1044/1092-4388(2013/12-0217).
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PurposeThe purpose of this study was to further explore the understanding of speaker-specific realizations of the /s/–/ʃ/ contrast in German in relation to individual differences in palate shape.MethodTwo articulatory experiments were carried out with German native speakers. In the first experiment, 4 monozygotic and 2 dizygotic twin pairs were recorded by means of electromagnetic articulography. In the second experiment, 12 unrelated speakers were recorded by means of electropalatography. Interspeaker variability in the articulatory distance between the sibilants was measured and was correlated with several parameters of the palate shape.ResultsThe results were twofold: (a) Similar palatal morphologies as found in monozygotic twins yield similar articulatory realizations of the /s/–/ʃ/ contrast regarding vertical and horizontal distance of the target tongue tip positions, and (b) the realization of the contrast was influenced by palatal steepness, especially the inclination angle of the alveolo–palatal region. Speakers with flat inclination angles mainly retracted their tongue to realize the contrast, whereas speakers with steep inclination angles also elevated their tongue.ConclusionThe articulatory realization of the sibilant contrast is influenced not only by speaker-specific auditory acuity, as previously observed, but also by palatal shape morphology, which affects the somatosensory feedback speakers receive.
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Kochkonyan, Taisiya, Ghamdan Al-Harazi, Dmitry Domenyuk, Sergei Dmitrienko, Milana Budaichieva, and Stanislav Domenyuk. "Clinical types of hard palatal vault in people with various gnathic dental arches within physiologically optimal norm." Archiv Euromedica 12, no. 1 (January 16, 2022): 91–98. http://dx.doi.org/10.35630/2199-885x/2022/12/1.20.
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The study is based on an analysis of conebeam computed tomograms and biometric examination of jaw cast models obtained from 68 people aged 21–35 with permanent teeth physiological occlusion. The findings were used to identify the relationship between the morphometric values (height, depth) of the palatal vault, and the linear parameters (length, width) of dental arches. In patients with mesognathic dental arches, the palatal vault index, taken as a ratio between the palate height to the alveolar part width, was 41.14 ± 2.87%, whereas the width indicators exceeded (by 2.43 times on average) the hard palate vault depth parameters. People with dolichognathic dental arches had the value of the palatal vault index reaching 51.75 ± 2.57%, while the width indicators exceeded the depth parameters of the hard palate vault by 1.93 times on average. In patients with brachygnathic dental arches, the palatal vault index was 28.29 ± 2.62%, with the width indicators exceeding the depth parameters by 3.53 times on average. There is evidence showing that mesognathic dental arches have mesopalatal (proportional) palatal vault matching them, while in case of dolichognathic dental arches, the match is dolichopalatal (high and narrow) type of vault. As for brachygnathic dental arches, then the match is brachypalatal, i.e. a low and wide vault. The obtained data can be used in clinical orthodontics, orthopedic dentistry, as well as maxillofacial surgery to assess the hard palate parameters, to diagnose palatal vault pathologies, and to select respective treatment approaches in view of the dental arches shape and size anomalies.
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Brinkley, L. L., and J. Morris-Wiman. "Effects of chlorcyclizine-induced glycosaminoglycan alterations on patterns of hyaluronate distribution during morphogenesis of the mouse secondary palate." Development 100, no. 4 (August 1, 1987): 637–40. http://dx.doi.org/10.1242/dev.100.4.637.
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Chlorcyclizine (CHLR) enhances the degradation of hyaluronate (HA) into smaller molecular weight pieces with no effect on its synthesis. Administration of CHLR to pregnant CD-1 mice on gestational days 10.5, 11.5 and 12.5 results in 100% cleft palate in the fetuses. The caudal two thirds of the palatal shelves are reduced in size and unable to reorient in vitro, while anterior shelf regions are relatively unaffected. Alcian blue staining combined with specific enzymic digestion was used to identify HA in sections of CHLR-treated shelves. With the aid of computer-assisted image subtraction the patterns of HA distribution across the tissue section were objectively identified. Anterior, posterior and presumptive soft palatal shelf regions were examined at gestational days 13.25, 13.5, 13.75 and 14.5. Acquisition of a normal pattern of HA distribution was delayed by about 24 h, as compared to untreated specimens in all three shelf regions. The posterior and soft regions, comprising the caudal two thirds of the shelf, also showed pronounced shape change. These regions only displayed normal curvature of the nasal surface when a normal pattern of HA distribution was attained. These results suggest that, for the caudal two thirds of the palatal shelf, normal shape and the ability to remodel are linked to the molecular configuration of HA and to a specific pattern of HA distribution.
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Dellavia, C., C. Sforza, F. Orlando, P. Ottolina, F. Pregliasco, and V. F. Ferrario. "Three-dimensional hard tissue palatal size and shape in Down syndrome subjects." European Journal of Orthodontics 29, no. 4 (June 7, 2007): 417–22. http://dx.doi.org/10.1093/ejo/cjm026.
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SYKORA, O., and E. J. SUTOW. "Posterior palatal seal adaptation: influence of processing technique, palate shape and immersion." Journal of Oral Rehabilitation 20, no. 1 (January 1993): 19–31. http://dx.doi.org/10.1111/j.1365-2842.1993.tb01511.x.
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Schiller, Simone, Elke Rustemeier, Dominik Kraus, Helmut Stark, Frauke Müller, and Karl-Heinz Utz. "Misfit of Complete Maxillary Dentures’ Posterior Palatal Seal following Polymerisation with Four Different Autopolymerising Resins: An In Vitro Study." Materials 15, no. 15 (July 30, 2022): 5285. http://dx.doi.org/10.3390/ma15155285.
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Background: The majority of complete dentures are still conventionally manufactured using a flask-and-pack technique. However, the polymerization process may introduce a distortion of the denture body. The aim of this study was to evaluate the three-dimensional fit of the posterior palatal seal of maxillary complete dentures with the original impression, and to give recommendations for scraping. Methods: Four autopolymerising resins were used to manufacture 40 palatal plates each for high, medium and flat palates (total n = 120). The misfit was captured by taking a reline impression with a highly fluid silicone, the dimensions of which were measured with a flat-bed scanner. Results: The shape of the palate had a significant impact (median p = 0.0435), but not the resin type (median p = 0.2575). It was largest for the flat palate and smallest for the high palate. The largest misfit was observed in the palatal midline area (flat-palate average median: 685 µm; high and medium palates: 620 µm) decreasing towards the lateral and anterior regions. Conclusions: The results suggest compensating for the palatal misfit that occurs with autopolymerising resins by scraping a postdam of an approximately 0.7 mm depth to the master cast, decreasing towards the anterior and lateral areas. In high and medium palates, the scraping could be less pronounced.
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Kochkonyan, Taisiya, Ghamdan Al-Harazi, Dmitry Domenyuk, Sergei Dmitrienko, and Stanislav Domenyuk. "SPECIFIC FEATURES OF VARIANT ANATOMY AND MORPHOMETRIC CHARACTERISTICS OF THE PALATAL VAULT IN ADULTS WITH DIFFERENT GNATHIC AND DENTAL TYPES OF ARCHES." Archiv Euromedica 11, no. 3 (July 3, 2021): 54–60. http://dx.doi.org/10.35630/2199-885x/2021/11/3/14.
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Cone-beam computed tomograms of 68 people (age — 21–35) with physiological occlusion and various gnathic dental arches were analyzed by a method developed for identifying the palatal arch index, taken as a height (depth)-to-width dimension ratio. The results of the study revealed that palatal parameters are determined by main variants (types) of the palatal vault. In case of the mesopalatal type of the arch (index value — 35–45%), the width parameters exceeded the depth values by an average of 2.4 times, while the divergence angle of alveolar processes was 116.7 ± 5.6°. The dolichopalatal type of the arch (index value – above 45%) featured domination of the width parameters over the depth-related ones, by an average of 1.8 times, while the alveolar processes divergence angle made up 127.6 ± 6.1°. As far as the brachypalatal type of the arch is concerned (index value — below 35%), the width parameters exceeded the depth parameters by 4.0 times on average, the divergence angle of the alveolar processes being 113.5 ± 5.3°. The obtained data can be used in clinical orthodontics when diagnosing pathologies of the palatal vault, as well as to interpret data from additional methods of examination and to choose the right treatment for issues related to the dental arch shape and size.