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Добірка наукової літератури з теми "Cephalometry"

Автор: Grafiati

Опубліковано: 4 червня 2021

Оновлено: 30 липня 2024

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Статті в журналах з теми "Cephalometry"

1

Zielak, João César, David Gulin Neto, Leonardo Fernandes da Cunha, Tatiana Miranda Deliberador, and Allan Fernando Giovanini. "Cephalometric Approach to the Occlusal Vertical Dimension Reestablishment." Case Reports in Dentistry 2014 (2014): 1–5. http://dx.doi.org/10.1155/2014/920840.

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The occlusal vertical dimension (OVD) refers to the length of the face as determined by the amount of separation of the jaws. Its determination is important for the manufacture of restorations. However, defining the correct occlusal vertical dimension for edentulous patients is one of the most important steps for function and esthetics rehabilitation. Cephalometry is a standardized method of assessing dental and facial proportions and their interrelation. Additionally, cephalometric analysis of the facial vertical dimension can establish an individual pattern for each patient. This analysis should become a permanent part of each patient’s record. Hence, this study presented a case report with the use of cephalometry as an auxiliary tool in the rehabilitation of OVD. Clinical relevance showed that cephalometric analysis can be an accurate and convenient instrument to treatment planning and prognostic of oral rehabilitation. The reader should understand the clinical implications of using cephalometry as a tool in the rehabilitation of OVD.

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2

Drachevska, I. Yu. "Features and modern aspects of the use of teleroentgenographic indicators determined by STEINER, RICKETTS and DOWNS METHODS (analysis of scientific literature)." Reports of Vinnytsia National Medical University 24, no. 2 (October 12, 2020): 321–24. http://dx.doi.org/10.31393/reports-vnmedical-2020-24(2)-21.

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Annotation. The aim of the work is to analyze the modern scientific literature on the features and use of methods of cephalometric analysis of lateral teleroentgenograms by Steiner, Ricketts and Downs methods. The introduction of modern methods of dental care, which include an individual approach to the patient depending on the characteristics of his face is the most promising in clinical medicine. However, at the same time, such an approach requires a solid theoretical basis, foundation, and further large-scale clinical trials. Clinical anthropology, one of the parts of which is cephalometry, meets such requirements most fully. Cephalometry, in turn, is reflected in clinical application in the form of cephalometric analysis, which is a key element to begin providing modern dental care to the population.

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3

Metli, Şule Nur, Mücahid Yıldırım, Emire Aybüke Erdur, and Ömer Erdur. "A comparison of transversal changes occurring in the treatment of rapid maxillary expansion with acoustic rhinometry." International Dental Research 12, Suppl. 1 (December 31, 2022): 97–102. http://dx.doi.org/10.5577/intdentres.434.

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Aim: The aim of this study was to determine the relationship between cephalometric transversal measurements and nasal patency before and after rapid maxillary expansion (RME) treatment applied to patients with maxillary transversal deficiency. Methodology: The records of 30 patients with maxillary transversal insufficiency and 20 patients without normal dentofacial and nasal symptoms were used. Acoustic rhinometry (MCA1, MCA2, VOL1, VOL2) and cephalometry measurements (JR–JL, MMTI, nasal width) were analyzed before (TO) and six months after (T1) RME. Results: There were no significant differences in age and gender between the groups. After the RME treatment of the patients in the study group, there was a significant increase in the cephalometric measurement (JL–JR, MMTI, nasal width) and acoustic rhinometry measurement parameters (MCA1, MCA2, VOL1, VOL2). Cephalometric measurements showed consistent changes in the patients in the study group, suggesting that RME treatment increased the maxilla’s growth capacity. The postero-anterior cephalometry results improved after RME treatment and approached those of the control group. Conclusion: Significant improvement was observed in the cephalometric transversal measurements after RME treatment. This improvement indicated that RME increases maxillary growth capacity. There was no correlation between cephalometric and acoustic rhinometry. This result may be due to the inability of postero-anterior cephalometry to effectively evaluate the maxilla-related part of the nasal structures. How to cite this article: Metli ŞN, Yıldırım M, Erdur EA, Erdur Ö. A comparison of transversal changes occurring in the treatment of rapid maxillary expansion with acoustic rhinometry. Int Dent Res 2022;12(Suppl.1):97-102. https://doi.org/10.5577/intdentres.434 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

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4

Yousefi, Faezeh, Vahid Mollabashi, Soroush Bahmani, and Maryam Farhadian. "Comparison of Gonial Angle and Alveolar Bone Height Changes in Panoramic and Lateral Cephalometry Radiography in Growing Patients." Avicenna Journal of Dental Research 14, no. 1 (March 29, 2022): 33–38. http://dx.doi.org/10.34172/ajdr.2022.06.

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Background: This study aimed to compare the gonial angle and alveolar bone height changes between panoramic and lateral cephalometry radiographic images in class II malocclusion patients before and after orthodontic treatment. Methods: The obtained radiographic images were selected from among 120 class 2 malocclusion cases. The gonial angle and alveolar bone height were measured in the midline and molar regions of panoramic and lateral cephalometric radiographs using the software tools before and after the treatment of patients. Study data were analyzed by SPSS statistical software (version 21.0), and a significance level was set to 0.05 for all statistical tests. Results: Based on the results, no significant difference was found regarding the gonial angle before and after treatment on the right and left sides in panoramic radiography and the gonial angle changes before and after treatment in cephalometric radiography (P>0.05). However, the obtained results for posterior and anterior alveolar ridge height were significant in panoramic and cephalometric radiographs (P<0.05). Moreover, the comparison of the measured gonial angle values before treatment in panoramic and cephalometric radiography represented a significant level (P<0.05). Eventually, the statistical results suggested that the alveolar bone height differences between panoramic and cephalometry radiography were significantly different in both anterior and posterior regions after treatment (P<0.05). Conclusions: The findings indicated that only measurements obtained from the panoramic radiography were valid for the gonial angle. However, panoramic and cephalometry radiography procedures cannot be replaced for assessing the anterior and posterior alveolar bone height.

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5

Narkhede, Sameer, Paritosh Rao, Veera Sawant, Sanpreet Singh Sachdev, Suraj Arora, Ajinkya M. Pawar, Rodolfo Reda, and Luca Testarelli. "Digital Versus Manual Tracing in Cephalometric Analysis: A Systematic Review and Meta-Analysis." Journal of Personalized Medicine 14, no. 6 (May 25, 2024): 566. http://dx.doi.org/10.3390/jpm14060566.

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Background: Over the years, various researchers have attempted to compare digital cephalometry with the conventional manual approach. There is a need to comprehensively analyze the findings from the earlier studies and determine the potential advantages and limitations of each method. The present systematic review aimed to compare the accuracy of digital and manual tracing in cephalometric analysis for the identification of skeletal and dental landmarks. Methods: A systematic search was performed using the keywords “Digital” AND “Manual” AND “Cephalometry” to identify relevant studies published in the English language in the past decade. The electronic data resources consulted for the elaborate search included the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, CINAHL, EMBASE, PsycINFO, Scopus, ERIC, and ScienceDirect with controlled vocabulary and free text terms. Results: A total of n = 20 studies were identified that fulfilled the inclusion and exclusion criteria within the timeframe of 2013 to 2023. The data extracted from the included articles and corresponding meta-analyses are presented in the text. Conclusions: The findings of the present systematic review and meta-analysis revealed trends suggesting that digital tracing may offer reliable measurements for specific cephalometric parameters efficiently and accurately. Orthodontists must consider the potential benefits of digital cephalometry, including time-saving and user-friendliness.

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6

Taub, Peter J. "Cephalometry." Journal of Craniofacial Surgery 18, no. 4 (July 2007): 811–17. http://dx.doi.org/10.1097/scs.0b013e31806848cf.

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7

Alshamrani, Khalaf, Hassan Alshamrani, F. F. Alqahtani, and Ali H. Alshehri. "Automation of Cephalometrics Using Machine Learning Methods." Computational Intelligence and Neuroscience 2022 (June 21, 2022): 1–13. http://dx.doi.org/10.1155/2022/3061154.

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Cephalometry is a medical test that can detect teeth, skeleton, or appearance problems. In this scenario, the patient’s lateral radiograph of the face was utilised to construct a tracing from the tracing of lines on the lateral radiograph of the face of the soft and hard structures (skin and bone, respectively). Certain cephalometric locations and characteristic lines and angles are indicated after the tracing is completed to do the real examination. In this unique study, it is proposed that machine learning models be employed to create cephalometry. These models can recognise cephalometric locations in X-ray images, allowing the study’s computing procedure to be completed faster. To correlate a probability map with an input image, they combine an Autoencoder architecture with convolutional neural networks and Inception layers. These innovative architectures were demonstrated. When many models were compared, it was observed that they all performed admirably in this task.

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8

Berwig, Luana, Ana da Silva, Eliane Corrêa, Eliane Serpa, and Rodrigo Ritzel. "Correlation between nasopharyngoscopy and cephalometry in the diagnosis of hyperplasia of the pharyngeal tonsils." International Archives of Otorhinolaryngology 16, no. 02 (April 2012): 209–16. http://dx.doi.org/10.7162/s1809-97772012000200009.

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Summary Introduction: Hyperplasia of the pharyngeal tonsil is one of the main causes of mouth breathing, and accurate diagnosis of this alteration is important for proper therapeutic planning. Therefore, studies have been conducted in order to provide information regarding the procedures that can be used for the diagnosis of pharyngeal obstruction. Objective: To verify the correlation between nasopharyngoscopy and cephalometric examinations in the diagnosis of pharyngeal tonsil hyperplasia. Method: This was a cross-sectional, clinical, experimental, and quantitative study. Fifty-five children took part in this study, 30 girls and 25 boys, aged between 7 and 11 years. The children underwent nasofibropharyngoscopic and cephalometric evaluation to determine the grade of nasopharyngeal obstruction. The Spearman's rank correlation coefficient at the 5% significance level was used to verify the correlation between these exams. Results: In the nasopharyngoscopy evaluation, most children showed grade 2 and 3 hyperplasia of the pharyngeal tonsil, which was followed by grade 1. In the cephalometry assessment, most children showed grade 1 hyperplasia of the pharyngeal tonsil, which was followed by grade 2. A statistically significant regular positive correlation was observed between the exams. Conclusion: It was concluded that the evaluation of the pharyngeal tonsil hyperplasia could be carried out by fiber optic nasopharyngoscopy and cephalometry, as these examinations were regularly correlated. However, it was found that cephalometry tended to underestimate the size of the pharyngeal tonsil relative to nasopharyngoscopy.

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9

Daokar, Suchita Tarvade, and Raksha Rajput. "Cephalometric Appraisal of Antero-posterior Skeletal Discrepancy: An Overview." Orthodontic Journal of Nepal 8, no. 1 (October 13, 2018): 48–55. http://dx.doi.org/10.3126/ojn.v8i1.21349.

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Cephalometry is one of the important diagnostic tools for assessment of jaw relationship. Sagittal jaw relationship is of utmost concern to the patients and orthodontist. Many linear and angular parameters are used for measurement of sagittal jaw discrepancies. This article reviews various AP cephalometric parameters

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10

Arat, Zuleyha Mirzen, Mehmet Okan Akcam, Elçin Esenlik, and F. Emel Arat. "Inconsistencies in the Differential Diagnosis of Open Bite." Angle Orthodontist 78, no. 3 (May 1, 2008): 415–20. http://dx.doi.org/10.2319/021907-80.1.

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Abstract Objective: To examine inconsistencies in the differential diagnosis of open bite. Materials and Methods: Using visual judgments, a total of 77 anterior open-bite cases in the postpubertal growth period were grouped as either morphogenetic, functional, or combination. The same sample was also grouped as either hyperdivergent, normodivergent, or hypodivergent using mandibular-plane angle and conventional cephalometry. Kappa analysis was used to test the agreement between the 2 methods of evaluation, and χ2 tests were used to analyze the distribution of cephalometrically grouped hyperdivergent, normodivergent, and hypodivergent cases among the visually assessed morphogenetic, functional and combination groups and vice versa. A κ score of 0.343 indicated a weak agreement between visual judgment and cephalometric methods of evaluation (P < .001). Results: Despite the expectation that cases evaluated as hyperdivergent using cephalometry would be visually evaluated as morphogenetic, more than half of the cases assessed as hyperdivergent were in fact classified as functional. Conclusions: These findings highlight the inadequacy of relying solely on cephalometric evaluation to classify open bite.

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Дисертації з теми "Cephalometry"

1

Chan, Yin-man. "Three-dimensional cephalometry of Chinese faces." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B43958643.

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2

Chan, Yin-man, and 陳彥民. "Three-dimensional cephalometry of Chinese faces." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B43958643.

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3

Ngema, Maureen Nkosazana. "A Cephalometric Comparison of Class II Extraction Cases Treated with Tip-Edge and Edgewise Techniques." University of the Western Cape, 2012. http://hdl.handle.net/11394/4605.

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Magister Scientiae Dentium - MSc(Dent)
The Tip-Edge and edgewise techniques are the main techniques that are mostly used in orthodontics, and are applicable to the treatment of any type of malocclusion from the most simple to the most complex. The edgewise bracket wire combination produces bodily tooth movement simultaneously or separately in all three planes of space and hence permits correction of the most extreme tooth malpositions. On the other hand Tip-Edge offers a differential tooth movement (just like the previously used Begg technique) within an edgewise based bracket system (Parkhouse 2003). When treating patients using the Tip-Edge technique, it is recommended that a specialized archwire i.e. Australian stainless steel wire be used. This wire can be described as a round austenitic stainless steel wire that is heat-treated and cold-drawn to its proper diameter. This was done in order to produce its special and needed properties such as toughness, resiliency and tensile strength (Kesling, 1985). It is used in conjunction with light (2oz) class II elastics. The aim of this study was to compare cephalometric changes in skeletal and dento-alveolar parameters in cases treated by these two different orthodontic techniques. This was to be established by calculating and comparing the pre- and post-treatment cephalometric variables of cases treated with these techniques by looking at the skeletal and dento-alveolar measurements. Thirty Tip-Edge and thirty edgewise treated cases that had class II malocclusion, had extraction of four premolars and were treated with Class II elastics were selected. The gender distribution between the Tip-Edge and the edgewise techniques were 47% and 60% respectively for females. For males it was 53% in Tip-Edge and 40% in the edgewise techniques.

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4

Roos, Bryan K. "A comparison of soft tissue prediction tracings using the Andrews and Ricketts diagnostic techniques." Morgantown, W. Va. : [West Virginia University Libraries], 2003. http://etd.wvu.edu/templates/showETD.cfm?recnum=2819.

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Thesis (M.S.)--West Virginia University, 2003.
Title from document title page. Document formatted into pages; contains ix, 77 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 58-61).

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5

Wu, Yung-chuan John. "Chinese norms of McNamara's cephalometric analysis /." View the Table of Contents & Abstract, 2005. http://sunzi.lib.hku.hk/hkuto/record/B34608503.

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6

Cooke, Michael Stephen. "Cephalometric analyses based on natural head posture of Chinese children in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1986. http://hub.hku.hk/bib/B31230830.

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7

Wu, Yung-chuan John, and 吳永傳. "Chinese norms of McNamara's cephalometric analysis." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B45012295.

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8

Wu, Yung-chuan John, and 吳永傳. "Lateral cephalometrics in southern Chinese." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206470.

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The lateral cephalometric radiograph (LCR) is an important tool in orthodontics to aid diagnosis, inform treatment planning and to evaluate treatment outcomes. Following identification of frequently used cephalometric analyses in the literature, the aims of this thesis were: (i) to establish cephalometric norm values for 12-year-old southern Chinese children for the modified Björk’s analysis, Jacobson’s Wits appraisal, Pancherz’s Sagittal Occlusal (SO) and Vertical Occlusal (VO) analyses (Paper I and II); (ii) to identify gender and racial/ethnic variations in cephalometric norm values (Paper I and II); (iii) to extrapolate from the cephalometric norm values of 12-year-old southern Chinese to produce norm values for 10, 11, 13 and 14-year-old - for these common aforementioned cephalometric analyses and McNamara’s analysis (Paper III); (iv) to investigate variations in the cephalometric characteristics of southern and northern Chinese children (Paper IV); and (v) to study the relationship between common cephalometric reference planes and the True Horizontal Plane (THP), and variations with respect to gender (Paper V). Extant LCRs from a community based sample of 200 male and 205 female 12-year-old southern Chinese in Hong Kong; 86 Caucasian children and 100 northern Chinese children, were traced and digitized twice employing the Computer Assisted Simulated for Orthognathic Surgery (CASSOS) program. Cephalometric norm values were created and extrapolated for 10 to 14-year-old. Gender and racial/ethnic variations were determined. In addition, the relationship between some common cephalometric reference planes (Sella Nasion Plane - SNP; Constructed Horizontal Plane - CHP; Frankfurt Horizontal Plane - FHP; Upper Occlusal Plane - UOP; Functional Occlusal Plane - FOP) and the THP was determined; and gender differences examined. Cephalometric norm values for modified Björk’s analysis, Jacobson’s Wits appraisal and Pancherz’s SO & VO analyses were produced for 12-year-old southern Chinese children. Variations in cephalometric norm values with respect to gender (P<0.05) and race/ethnicity (P<0.05) were observed. Extrapolated cephalometric norm values for modified Björk’s analysis, Jacobson’s Wits appraisal, Pancherz’s SO & VO analyses, and McNamara’s analysis were produced for 10 to 14-year-old. Variations in cephalometric norm values with respect to age (P<0.05), gender (P<0.05) and race/ethnicity (P<0.05) were observed. Furthermore, variations in cephalometric values between southern and northern Chinese children were evident (P<0.05), and between Caucasians and both Chinese groups (P<0.05). The mean inclination between THP and the conventional cephalometric planes differed significantly from zero: SNP/THP (P<0.05), UOP/THP (P<0.05), FOP/THP (P<0.05); and gender differences were apparent (P<0.05). In conclusion, norm values for frequently used cephalometric analyses were produced for 12-year-old southern Chinese, and extrapolated to produce norm values for 10 to 14-year-old. Age, gender and racial/ ethnic differences were apparent, supporting the need for age, gender and racial/ethnic specific norms. Common cephalometric reference planes differed to THP, and this warrants consideration in cephalometric analyses.
published_or_final_version
Dentistry
Doctoral
Doctor of Philosophy

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9

Mamutil, John. "Computerized Cephalometrics." Thesis, The University of Sydney, 1989. http://hdl.handle.net/2123/4953.

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Hamilton, Jennifer. "Individual preferences for profile attractiveness comparing two diagnostic techniques." Morgantown, W. Va. : [West Virginia University Libraries], 2007. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5045.

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Thesis (M.S.)--West Virginia University, 2007.
Title from document title page. Document formatted into pages; contains viii, 173 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 82-86).

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Книги з теми "Cephalometry"

1

Swennen, Gwen R. J., Filip Schutyser, and Jarg-Erich Hausamen. Three-Dimensional Cephalometry. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-29011-7.

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2

W, Caufield Page, ed. Introduction to radiographic cephalometry. Philadelphia: Lea & Febiger, 1985.

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3

Alexander, Jacobson, ed. Radiographic cephalometry: From basics to videoimaging. Chicago: Quintessence Pub. Co., 1995.

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4

Wolford, Larry. Surgical treatment objective: A systematic approach to the prediction tracing. St. Louis: C.V. Mosby, 1985.

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5

m, Viveca Brattstro. Craniofacial development in cleft lip and palate children related to different treatment regimes. Stockholm: Department of Orthodontics, School of Dentistry, Karolinska Institutet, 1991.

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6

Meuter, Norbert. Anthropologie des Ausdrucks: Die Expressivitat des Menschen zwischen Natur und Kultur. Munchen: Wilhelm Fink, 2006.

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7

Olow-Nordenram, Märta. Maxillonasal dysplasia (Binder's syndrome): A study of craniofacial morphology, associated malformations and familial relations. Göteborg: Department of Orthodontics, University of Göteborg, 1987.

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8

Meneghini, Fabio. Clinical facial analysis: Elements, principles, and techniques. 2nd ed. Berlin: Springer, 2012.

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9

1939-, Rami Reddy V., India University Grants Commission, Sri Venkatesvara University. Dept. of Physical Anthropology and Prehistoric Archaeology., and National Seminar on Dental Anthropology : Application and Methods (1984 : Tirupati, India), eds. Dental anthropology, applications and methods. New Delhi, India: Inter-India Publications, 1985.

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10

1932-, Bailar John C., Meyer Emily Ann, Pool Robert 1955-, Institute of Medicine (U.S.). Committee for the Assessment of the NIOSH Head-and-Face Anthropometric Survey of U.S. Respirator Users., and National Academy of Sciences (U.S.), eds. Assessment of the NIOSH head-and-face anthropometric survey of U.S. respirator users. Washington, D.C: National Academies Press, 2007.

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Частини книг з теми "Cephalometry"

1

Ferraro, James W. "Cephalometry and Cephalometric Analysis." In Fundamentals of Maxillofacial Surgery, 233–45. New York, NY: Springer New York, 1997. http://dx.doi.org/10.1007/978-1-4612-1898-2_13.

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Naini, Farhad B. "Cephalometry and Cephalometric Analysis." In Facial Aesthetics, 86–122. West Sussex, UK: John Wiley & Sons, Ltd., 2013. http://dx.doi.org/10.1002/9781118786567.ch7.

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3

Palomo, Juan Martin, Hakan El, Neda Stefanovic, Manhal Eliliwi, Tarek Elshebiny, and Fernando Pugliese. "3D Cephalometry." In 3D Diagnosis and Treatment Planning in Orthodontics, 93–127. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-57223-5_5.

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4

Schutyser, Filip, and Johan Van Cleynenbreugel. "From 3-D Volumetric Computer Tomography to 3-D Cephalometry." In Three-Dimensional Cephalometry, 1–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-29011-7_1.

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5

Kukwa, A., B. de Berry-Borowiecki, R. H. I. Blanks, I. Fleszar, A. Komorowska, and M. Ryba. "Cephalometry for Evaluation of Geometry of the Upper Airway." In Control of Breathing During Sleep and Anesthesia, 61–64. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4757-9850-0_11.

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6

Van Sofie, Cauter, W. Okkerse, G. Brijs, M. De Beule, M. Braem, and B. Verhegghe. "3D cephalometry: a new approach for landmark identification and image orientation." In IFMBE Proceedings, 1442–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89208-3_342.

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7

Alte da Veiga, F., and M. J. de Matos Barbosa. "Computerized cephalometry on orthodontic radiographs: towards flexible and easily customized systems." In Medical Informatics Europe 1991, 493–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-93503-9_87.

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8

Gill, Daljit S., and Farhad B. Naini. "Cephalometric Analysis." In Orthodontics: Principles and Practice, 78–87. West Sussex, UK: John Wiley & Sons, Ltd,., 2013. http://dx.doi.org/10.1002/9781118785041.ch9.

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9

Chatzigianni, Athina. "Cephalometric Radiography." In Atlas of Dentomaxillofacial Anatomical Imaging, 59–72. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-96840-3_6.

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10

Reyneke, Johan P., and Carlo Ferretti. "Diagnosis and Planning in Orthognathic Surgery." In Oral and Maxillofacial Surgery for the Clinician, 1437–62. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-1346-6_66.

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Анотація:

AbstractThe clinical evaluation of the face is the most important aspect of evaluating patients with dentofacial deformities. The clinical examination is the primary determinant in making a diagnosis and developing a treatment plan. The basic treatment goals are: establishment of orofacial function, ensure stability of results, achieve facial esthetics and to consider the patency of the airway. The systematic clinical examination is divided into five basic evaluations: the frontal view, the profile view, three quarter view, an occlusal assessment and the temporomandibular joint evaluation. The clinical diagnosis is then confirmed with special investigations such as panoramic, lateral and anteroposterior cephalometric radiographs and other investigations as required. A dental, skeletal and soft tissue problem list is then noted and orthodontic and surgical solutions integrated into a final treatment plan. A cephalometric radiographic tracing or a 3D virtual treatment planning system is finally used to measure the planned surgical movements and to visualize the expected treatment results.

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Тези доповідей конференцій з теми "Cephalometry"

1

Pchelkina, Yu Zh, R. A. Paringer, and A. V. Kupriyanov. "The active contours method analysis in solving cephalometry problems." In 2023 IX International Conference on Information Technology and Nanotechnology (ITNT). IEEE, 2023. http://dx.doi.org/10.1109/itnt57377.2023.10138998.

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2

Pinti, A., A. Taleb-Ahmed, and M. M. Rousset. "Correction of Radiographic Errors in Several Three Dimensional Cephalometry." In The Proceedings of the Multiconference on "Computational Engineering in Systems Applications". IEEE, 2006. http://dx.doi.org/10.1109/cesa.2006.313554.

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3

Pinti, A., A. Taleb-Ahmed, and M. M. Rousset. "Correction of Radiographic Errors in Several Three Dimensional Cephalometry." In Multiconference on "Computational Engineering in Systems Applications. IEEE, 2006. http://dx.doi.org/10.1109/cesa.2006.4281876.

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4

Sanatkhani, Soroosh, and Prahlad G. Menon. "Three-Dimensional Cephalometric Analysis Using Computed Tomographic Imaging." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-88259.

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Анотація:

Successful outcomes from the use of orthodontic devices are underpinned on their effective anchorage and the loading that they apply to the underlying facial structures. Anchorage plays an important role in determining the point of application of the corrective forces and subsequently the orientation of the resultant of these forces, which in-turn governs the outcome of treatment. Therefore, patient-specific design of anchors and their placement may benefit significantly from personalization using patient-specific and three-dimensional (3D) cephalometry. 3D cephalometry is therefore a first step to personalization of orthodontic treatment. In this feasibility study, we demonstrate the viability a novel image processing and surface analysis pipeline to quantify facial symmetry about the mid-sagittal facial plane, which may offer insight into optimal placement and orientation for implantation of orthodontic anchors, starting with patient-specific cone beam computed tomography (CBCT) images. Typical assessments of geometrical features/attributes of face include size, position, orientation, shape, and symmetry. Using 3D CBCT images in the DICOM image format, skull images were first segmented using a basic iso-contouring approach. To quantify symmetry, we split the skull along the mid-sagittal plane and used an iterative closest point (ICP) approach in order to rigidly co-register the left and right sides of the skull, optimizing for rotation, translation and scaling, after reflection of one half across the mid-sagittal plane. This was accomplished using an in-house plugin is developed for the open-source visualization toolkit (VTK) based 3D visualization tool, Paraview (Kitware Inc.). Finally, using a signed regional distance mapping plugin we were able to assess the regional asymmetry of regions of the skull (e.g. upper and lower jaw – specific targets for therapy) using colormaps of regional asymmetry (in terms of left-v/s-right side surface distance) and visualized the same as vector glyphs. The direction of these vectors is synonymous with anticipated regional forces required in order to achieve left-right symmetry, which in-turn may have value in surgical planning for orthodontic implantation. In sum, we demonstrate a workflow for computer-aided cephalometry to assess the symmetry of the skull, which shows promise for personalized orthodontic anchor design.

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5

Lakshmana Rao, Gururajaprasad Kaggal, Norehan Mokhtar, Yulita Hanum P. Iskandar, and Arvind Channarayapatna Srinivasa. "Learning Orthodontic Cephalometry through Augmented Reality: A Conceptual Machine Learning Validation Approach." In 2018 International Conference on Electrical Engineering and Informatics (ICELTICs). IEEE, 2018. http://dx.doi.org/10.1109/iceltics.2018.8548939.

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6

Rahele Kafieh, Alireza Mehri, and Saeed Sadri. "Automatic landmark detection in cephalometry using a modified Active Shape Model with sub image matching." In 2007 International Conference on Machine Vision. IEEE, 2007. http://dx.doi.org/10.1109/icmv.2007.4469276.

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7

Kafieh, Rahele, Saeed Sadri, Alireza mehri, and Hamid Raji. "Using a Combination of Model Based and Intelligent methods in Automatic Landmark Detection in Cephalometry." In 2007 Innovations in Information Technologies (IIT). IEEE, 2007. http://dx.doi.org/10.1109/iit.2007.4430366.

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8

Chaudhry, D., B. Prajapat, S. Singh, and S. Rohilla. "P217 Evaluation of upper airway (ua) anthropometry using magnetic resonance imaging (mri) and lateral cephalometry in patients of obstructive sleep apnoea (osa) in north indian population." In British Thoracic Society Winter Meeting 2017, QEII Centre Broad Sanctuary Westminster London SW1P 3EE, 6 to 8 December 2017, Programme and Abstracts. BMJ Publishing Group Ltd and British Thoracic Society, 2017. http://dx.doi.org/10.1136/thoraxjnl-2017-210983.359.

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9

Marina Lubis, Mimi, Hilda Fitria Lubis, and Siti Bahirrah. "Cephalometric Value of Batak Ethnic." In International Dental Conference of Sumatera Utara 2017 (IDCSU 2017). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/idcsu-17.2018.44.

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10

Mohseni, Hadis, and Shohreh Kasaei. "Automatic Localization of Cephalometric Landmarks." In 2007 IEEE International Symposium on Signal Processing and Information Technology. IEEE, 2007. http://dx.doi.org/10.1109/isspit.2007.4458132.

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Звіти організацій з теми "Cephalometry"

1

Solodkaya, K. I., V. V. Petrovskaya, and YU A. Gioeva. Sagittal cephalometric analysis of skull CBCT. OFERNIO, February 2021. http://dx.doi.org/10.12731/ofernio.2021.24755.

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2

Solodkaya, K. I., V. V. Petrovskaya, and YU A. Gioeva. Coronal-axial cephalometric analysis of skull CBCT. OFERNIO, February 2021. http://dx.doi.org/10.12731/ofernio.2021.24756.

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3

Godfrey, Bracken R. Accuracy of 3D Imaging Software in Cephalometric Analysis. Fort Belvoir, VA: Defense Technical Information Center, May 2013. http://dx.doi.org/10.21236/ad1012925.

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4

Saini, Ravinder, Syed Altafudding, Sunil kumar Vaddamanu, Mohammed Saheer, Mohammed Ibrahim, Mohasin Khader, and punnoth Naseef. The Effect of Premolar Extractions on Airway and Cephalometric Changes: A Meta-Analytical Review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, January 2024. http://dx.doi.org/10.37766/inplasy2024.1.0083.

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