Journal articles: 'Circummaxillary suture'

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Woller, Jessica L., Ki Beom Kim, Rolf G. Behrents, and Peter H. Buschang. "An assessment of the maxilla after rapid maxillary expansion using cone beam computed tomography in growing children." Dental Press Journal of Orthodontics 19, no. 1 (January 2014): 26–35. http://dx.doi.org/10.1590/2176-9451.19.1.026-035.oar.

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INTRODUCTION: With the advent of cone beam computed tomography (CBCT), it is now possible to quantitatively evaluate the effects of rapid maxillary expansion (RME) on the entire maxillary complex in growing patients. OBJECTIVE: The purpose of this study is to use three-dimensional images to evaluate the displacement that occurs at the circummaxillary sutures (frontonasal, zygomaticomaxillary, intermaxillary, midpalatal, and transpalatal sutures) following rapid maxillary expansion in growing children. METHODS: The CBCT scans of 25 consecutively treated RME patients (10 male, 15 female) with mean age of 12.3 ± 2.6 years, were examined before expansion and immediately following the last activation of the expansion appliance. RESULTS: Statistically significant (P < 0.05) amounts of separation were found for the displacement of the bones of the frontonasal suture, the intermaxillary suture, the zygomaticomaxillary sutures, and the midpalatal suture. The change in angulation of the maxillary first molars due to RME was also statistically significant. There was no statistically significant displacement of the transpalatal suture. CONCLUSIONS: Rapid maxillary expansion results in significant displacement of the bones of circummaxillary sutures in growing children.

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Bazargani, Farhan, Ingalill Feldmann, and Lars Bondemark. "Three-dimensional analysis of effects of rapid maxillary expansion on facial sutures and bones: A systematic review." Angle Orthodontist 83, no. 6 (June 7, 2013): 1074–82. http://dx.doi.org/10.2319/020413-103.1.

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ABSTRACTObjective:To evaluate the evidence on three-dimensional immediate effects of rapid maxillary expansion (RME) treatment on growing patients as assessed by computed tomography/cone beam computed tomography (CT/CBCT) imaging.Materials and Methods:The published literature was searched through the PubMed, Embase, and Cochrane Library electronic databases from January 1966 to December 2012. The inclusion criteria consisted of randomized controlled trials, prospective controlled studies, and prospective case-series. Two reviewers extracted the data independently and assessed the quality of the studies.Results:The search strategy resulted in 73 abstracts or full-text articles, of which 10 met the inclusion criteria. When treating posterior crossbites with a RME device, the existing evidence points out that the midpalatal suture opening is around 20%–50% of the total screw expansion. There seems to be no consistent evidence on whether the midpalatal sutural opening is parallel or triangular. The effect on the nasal cavity dimensions after RME seems to be apparent and indicates an enlargement between 17% and 33% of the total screw expansion. Circummaxillary sutures, particularly the zygomaticomaxillary and frontomaxillary sutures and also spheno-occipital synchondrosis, appear to be affected by the maxillary expansion. Overall, however, the changes were small and the evidence not conclusive.Conclusions:CT imaging proved to be a useful tool for assessment of treatment effects in all three dimensions. The majority of the articles were judged to be of low quality, and therefore, no evidence-based conclusions could to be drawn from these studies.

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Ghoneima, Ahmed, Ezzat Abdel-Fattah, James Hartsfield, Ashraf El-Bedwehi, Ayman Kamel, and Katherine Kula. "Effects of rapid maxillary expansion on the cranial and circummaxillary sutures." American Journal of Orthodontics and Dentofacial Orthopedics 140, no. 4 (October 2011): 510–19. http://dx.doi.org/10.1016/j.ajodo.2010.10.024.

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Sun, Zongyang, Sarah Hueni, Boon Ching Tee, and Hyeonseon Kim. "Mechanical strain at alveolar bone and circummaxillary sutures during acute rapid palatal expansion." American Journal of Orthodontics and Dentofacial Orthopedics 139, no. 3 (March 2011): e219-e228. http://dx.doi.org/10.1016/j.ajodo.2009.12.029.

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Karamanli, Beril Demir, Hülya Kılıçoğlu, and Armagan Fatih Karamanli. "Evaluation of the Effects of the Chincup Appliance on the Craniofacial Structures by the Finite Element Analysis." APOS Trends in Orthodontics 7 (October 1, 2017): 219–23. http://dx.doi.org/10.4103/apos.apos_53_17.

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Aims The aim of this study is to evaluate the effects of the chincup appliance used in the treatment of Class III malocclusions, not only on the mandible or temporomandibular joint (TMJ) but also on all the craniofacial structures. Materials and Methods Chincup simulation was performed on a three-dimensional finite element (FE) model. 1000 g (500 g per side) force was applied in the direction of chin-condyle head. Nonlinear FE analysis was used as the numerical analysis method. Results By the application of chincup, stresses were distributed not only on TMJ or mandible but also on the circummaxillary sutures and other craniofacial structures. Conclusions Clinical changes obtained by chincup treatment in Class III malocclusions are not limited by only mandible. It was seen that also further structures were affected.

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Karamanli, Beril Demir, Hülya Kılıçoğlu, and Armağan Fatih Karamanli. "Evaluation of the Effects of the Dental and Skeletal Anchored Face Mask Therapies on the Craniofacial System by Using Nonlinear Finite Element Analysis." APOS Trends in Orthodontics 7 (December 1, 2017): 267–72. http://dx.doi.org/10.4103/apos.apos_50_17.

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Aims The aim of this study was to evaluate the biomechanical effects on the craniofacial complex of skeletal anchorage and dental anchorage during face mask therapy. Subjects and Methods Two nonlinear finite element (FE) simulations were performed using a three-dimensional FE model. Face mask therapy with dental anchorage in the upper canines and face mask therapy with skeletal anchorage in the piriform apertures of the maxilla were simulated. In both simulations, the magnitude of the applied force was 750 g per side, and the force direction was 30° forward and downward relative to the occlusal plane. Results The circummaxillary sutures showed greater and more uniform stresses in the skeletal anchorage model than the dental anchorage model. This is the result of the more parallel forward movement of the maxilla in the skeletal anchorage model. Conclusions In Class III malocclusions with maxillary deficiency, for improved effects on the maxilla, choosing skeletal anchorage may be more effective in face mask therapies

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Cho, Ah-Ra, Jae Hyun Park, Won Moon, Jong-Moon Chae, and Kyung-Hwa Kang. "Short-term effects of microimplant-assisted rapid palatal expansion on the circummaxillary sutures in skeletally mature patients: A cone-beam computed tomography study." American Journal of Orthodontics and Dentofacial Orthopedics 161, no. 2 (February 2022): e187-e197. http://dx.doi.org/10.1016/j.ajodo.2021.01.023.

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Lee, Ji-Min, Sung-Hwan Choi, Yoon Jeong Choi, Kee-Joon Lee, and Hyung-Seog Yu. "Evaluation of miniscrew-assisted rapid palatal expansion success by comparing width of circummaxillary sutures before expansion in adult male patients." Angle Orthodontist, December 22, 2022. http://dx.doi.org/10.2319/062722-456.1.

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ABSTRACT Objectives To investigate the relationship between circummaxillary sutures and miniscrew-assisted rapid palatal expansion (MARPE) success in adult male patients and to evaluate the correlation between the width of the sutures and the maxilla expansion ratio. Materials and Methods This retrospective study comprised 40 adult male patients treated with MARPE divided into a separation group (N = 20, mean age, 21.9 years) consisting of subjects with midpalatal suture opening and a nonseparation group (N = 20, mean age, 21.7 years) consisting of subjects with no midpalatal suture opening. Cone-beam computed tomography images were obtained before MARPE expansion for both groups and after expansion for the separation group. Vertical and horizontal skeletal relationships, palate length, and widths of 10 circummaxillary sutures before expansion were compared. The correlation between maxilla expansion ratio (jackscrew expansion to maxillary expansion ratio) and circummaxillary suture widths was also analyzed in the separation group. Results There were no significant differences in age, vertical and horizontal skeletal relationships, and palate length between the two groups. Zygomaticomaxillary, pterygomaxillary, midpalatal, and transverse palatine sutures showed significantly greater width in the separation group (P < .05). The zygomaticomaxillary suture showed the greatest difference (Δ = 0.36 mm) between the groups. The zygomaticomaxillary and pterygomaxillary sutures showed significant positive correlation with the maxilla expansion ratio (P < .01). Conclusions In adult male patients, greater circummaxillary suture widths before MARPE expansion, especially zygomaticomaxillary and pterygomaxillary sutures, resulted in a better chance of successful suture separation and more maxillary expansion.

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Meazzini, Maria Costanza, Federica Corradi, Fabio Mazzoleni, Elena De Ponti, Muriel Maccagni, Giorgio Novelli, and Alberto Bozzetti. "Circummaxillary Sutures in Patients With Apert, Crouzon, and Pfeiffer Syndromes Compared to Nonsyndromic Children: Growth, Orthodontic, and Surgical Implications." Cleft Palate-Craniofacial Journal, August 10, 2020, 105566562094761. http://dx.doi.org/10.1177/1055665620947616.

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Objective: To evaluate patency of circummaxillary sutures in children with Apert, Crouzon, and Pfeiffer Syndromes and to compare it to a nonsyndromic matched control group. Design: Case–control study. Setting: Tertiary care public hospital. Materials and Methods: Thirty-eight computed tomography (CT) scans of patients affected by syndromic craniofacial synostosis (13 patients with Apert syndrome, 20 patients with Crouzon syndrome, and 5 patients with Pfeiffer syndrome), average age 5 ± 2.8 years, range 1.9 to 12 years, were compared to age- and sex-matched control CTs of 38 nonsyndromic children. Computed tomography scans of the study group had to be performed prior to any midfacial surgery. Main Outcome Measures: Midpalatal suture, zygomaticomaxillary sutures, and pterigomaxillary sutures were evaluated and scored. Results: The syndromic group showed a significant earlier ossification of all sutures compared to the nonsyndromic group. Significant differences were already present in early childhood and continued through adolescence. Conclusions: Based on the differences in terms of maxillary sutural ossification identified, midfacial hypoplasia does not seem to be only secondary to premature cranial base ossification, but also to primary synostosis of facial sutures, thus providing new insights into the pathogenesis of midface deficiency in children with craniofacial-synostosis. Care should be taken when planning any maxillary orthopedics, such as expansion or maxillary protraction, given the high frequency of early fusion of circummaxillary sutures.

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Mathew, Jeni Ann, Ranjit H. Kamble, Sunita S. Shrivastava, and Sumukh Nerurkar. "Comparative Evaluation of the Forces Produced by Tongue on Circummaxillary Sutures in Skeletal Class-III Malocclusion with Maxillary Hypoplasia Using Tongue Crib with that of Facemask Therapy: A FEM Study." Journal of Pharmaceutical Research International, December 28, 2021, 125–29. http://dx.doi.org/10.9734/jpri/2021/v33i61b35269.

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Introduction: The tongue exerts its force during swallowing, while it rests behind the crib. Magnitude of forces tongue exerts through tongue crib at various sutures, its implication in various grades of maxillary hypoplasia in Class III malocclusion is not provided in literature. The rationale of this study is to investigate stress distributions in the sutures of craniofacial region produced by forces applied by tongue through tongue crib in comparison with facemask therapy in Class III malocclusion with maxillary hypoplasia in maxillary protraction. Objectives: The rationale of this study was to compare forces generated by tongue through tongue crib and facemask therapy in Class III malocclusion with maxillary hypoplasia in child of pubertal age group. Methodology: Finite element model of skull would be generated and simulation of tongue crib and facemask therapy would be done and stresses would be studied at various sutures. Quantitative analysis is done by elucidating values of finite element analysis. Expected Results: The forces produced by tongue on circummaxillary sutures in skeletal Class III malocclusion with maxillary hypoplasia using tongue crib with that of facemask therapy would be substantial. Conclusion: Stress distribution produced by protraction forces exerted by tongue through tongue crib in comparison with facemask therapy in Class III malocclusion with maxillary hypoplasia would be studied through finite element analysis to promote growth in maxilla.

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Jahanbin, Arezoo, Neda Eslami, Alireza Chamani, Hosein Hoseini Zarch, Shirindokht Shirazi, and Saeedeh Hajebi Khaniki. "Age-Dependent Three-Dimensional Evaluation of Circummaxillary Sutures Maturation in Normal Population Using Cone-Beam Computed Tomography." Journal of Craniofacial Surgery Publish Ahead of Print (March 14, 2022). http://dx.doi.org/10.1097/scs.0000000000008652.

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GARG, Dhiraj, Priyank RAI, Tulika TRIPATHI, and Anup KANASE. "Effects of different force directions of intra-oral skeletally anchored maxillary protraction on craniomaxillofacial complex, in Class III malocclusion: a 3D finite element analysis." Dental Press Journal of Orthodontics 27, no. 5 (2022). http://dx.doi.org/10.1590/2177-6709.27.5.e2220377.oar.

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ABSTRACT Introduction: The intra-oral skeletally anchored maxillary protraction (I-SAMP) has been found to be an effective treatment for skeletal Class III malocclusion. Objective: This in-silico study explored the influence of different force directions of intra-oral skeletally anchored Class III elastics on the changes in craniomaxillofacial complex, using finite element analysis. Methods: A 3-dimensional (3D) finite element model of the craniomaxillofacial bones including circummaxillary sutures was constructed with high biological resemblance. A 3D assembly of four miniplates was designed and fixed on the maxilla and mandible of the finite element model. The model was applied with 250g/force at the miniplates at three angulations (10°, 20°, and 30°) from the occlusal plane, to measure stress and displacement by using the ANSYS software. Results: The zygomaticotemporal, zygomaticomaxillary, and sphenozygomatic sutures played significant roles in the forward displacement and counterclockwise rotation of maxilla and zygoma, irrespective of the angulation of load application. The displacements and rotations of the zygomatico-maxillary complex decreased gradually with an increase in the angle of load application between miniplates from 10° to 30°. The mandible showed negligible displacement, with clockwise rotation. Conclusions: The treatment effects of I-SAMP were corroborated, with insight of displacement patterns and sutures involved, which were lacking in the previously conducted 2D and 3D imaging studies. The prescribed angulation of skeletally anchored Class III elastics should be as low as possible, since the displacement of zygomatico-maxillary complex increases with the decrease in angulation of the elastics.

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Ahmida, Ahmad, Shivam Mehta, Edward Amelemah, Rehana Bashir, Manuel Lagravère Vich, Aditya Tadinada, Veerasathpurush Allareddy, and Sumit Yadav. "Short-term and long-term effects of miniscrew-assisted and conventional rapid palatal expansion on the cranial and circummaxillary sutures." American Journal of Orthodontics and Dentofacial Orthopedics, February 2023. http://dx.doi.org/10.1016/j.ajodo.2023.01.007.

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Oliveira, Pedro Lima Emmerich, Vinicius Campos, Rafhael Milanezi Andrade, Mônica Tirre Souza Araújo, Matheus Melo Pithon, and Eduardo Franzotti Sant'Anna. "Deformation of the circummaxillary sutures during acute micro‐implant assisted rapid palatal expansion and tooth‐supported expansion: An ex vivo study." Orthodontics & Craniofacial Research, December 23, 2020. http://dx.doi.org/10.1111/ocr.12450.

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Chang, Chen-Jung, Meng-Yen Chen, Chih-Han Chang, and Hung-Chih Chang. "Investigation of the role of midpalatal and circummaxillary sutures in bone-anchored rapid maxillary expansion using a verified finite-element model." American Journal of Orthodontics and Dentofacial Orthopedics, October 2022. http://dx.doi.org/10.1016/j.ajodo.2021.10.019.

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Lakhe, Pratiksha, Smit Jhaveri, and Ashish Nasre. "Comparative Evaluation of the Stress Distribution and Transverse Displacement of the Circummaxillary Sutural System by Four Different Designs of Rapid Maxillary Expansion Appliances Using 3D Finite Element model: A Study Protocol." Journal of Pharmaceutical Research International, December 30, 2021, 8–12. http://dx.doi.org/10.9734/jpri/2021/v33i64b35322.

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Background: In adolescent patient’s Rapid maxillary skeletal expansion (RME) is used with predictable clinical results for correcting transverse maxillary skeletal contraction. During RME, heavy force is directed towards the maxillary skeletal base. These forces also have effect on the palatal bone, adjacent skeletal structures and dentition. Tooth supported RME apply significant pressure on the teeth leading to varying amount of buccal inclination of premolars and molars and dental expansion. Implant assisted expanders take skeletal anchorage thus minimizing or negating the effect of heavy pressure on the teeth and supporting structures. Finite Element Analysis is a form of computer simulation. It is a non-invasive, precise method for obtaining quantitative and comprehensive knowledge about the physiological responses that occur in tissues. It outperforms other experimental methods because it creates a three-dimensional model that allows for simulation and analysis of orthodontic force systems in all three dimensions. Objective: The present study intends to make an assessment of four different RME designs (Banded HYRAX, Banded MARPE, MSE expander, Orthoeasy PAL expander) in terms of distribution of stress in the circummaxillary Sutural system and resulting displacement of the bones in the craniofacial complex upon activation of the respective appliance. Methodology: CBCT scan data of an adolescent patient will be taken from archives of a reputed scan centre. 3D skull model will be generated using CBCT data and .stl/ DICOM format will be converted into Finite Element model. The different types of RME appliances will be designed over the FE model. The expanders will be activated and the stresses generated at the sites of interest would be studied. Results: The study is expected to permit a clinician to select the design of RME appliances, which will produce suitable stress and displacement that will help to increase transverse width of maxilla to correct the underlying skeletal discrepancy. Conclusion: This study will help to arrive at a conclusion about which designs of RME will best suit clinical application of mechanics for orthopaedic expansion in a particular case.

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Journal articles on the topic 'Circummaxillary suture'

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