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VOLUME 21 , ISSUE 9 ( September, 2020 ) > List of Articles


Comparison of the Condyle Sagittal Position of Class I and Class II Division 2 in Orthodontic Patients

Murilo Fernando Neuppmann Feres, Osama Eissa, Marina Guimarães Roscoe

Keywords : Cone-beam computed tomography, Condylar position, Malocclusion

Citation Information : Feres MF, Eissa O, Roscoe MG. Comparison of the Condyle Sagittal Position of Class I and Class II Division 2 in Orthodontic Patients. J Contemp Dent Pract 2020; 21 (9):977-981.

DOI: 10.5005/jp-journals-10024-2867

License: CC BY-NC 4.0

Published Online: 21-10-2020

Copyright Statement:  Copyright © 2020; Jaypee Brothers Medical Publishers (P) Ltd.


Aim: To compare the condyle sagittal position of class I and class II division 2 in orthodontic patients. Materials and methods: Fifty orthodontic cases (30 females and 20 males; 12–31 years) from the records of an Orthodontic Graduate Program were collected. Such cases presented cone-beam computed tomography (CBCT) as part of their initial diagnostic examinations. The study sample constituted two groups, i.e. class I and class II division 2 groups. A previously calibrated examiner performed the measurements of the images, representing the distance between the condyle and the articular surface of the glenoid fossa, both anteriorly (anterior disk space—ADS) and posteriorly (posterior disk space—PDS). Descriptive statistics were performed. Data were normally distributed, and parametric tests were used. Paired sample test was used to identify differences between the right and the left joints. Differences between class I and class II/2 groups were tested using independent t test. All statistical tests were interpreted at 5% significance level. Results: When the study groups were compared in relation to the dimensions observed for the right and the left ADS and PDS, no significant differences were detected. This study also calculated the differences between right and left disk spaces within the groups, and the differences were not significant for both class I and class II/2 groups. Conclusion: The results demonstrated, after the performance of a CBCT comparative analysis, that there is no significant difference between class II/2 and class I orthodontic patients in relation to the condyle sagittal position. Clinical significance: The results collected here refute the expectation of spontaneous mandibular anterior repositioning after correcting the overbite in class II/2 patients.

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