A COMPARATIVE ASSESSMENT OF MANDIBLE AND CONDYLAR POSITION IN PATIENTS WITH CLASS II DIV 2 INCISOR PATTERN AFTER ALIGNMENT AND LEVELLING PHASE- A PROSPECTIVE STUDY
Journal: International Journal of Advanced Research (Vol.12, No. 10)Publication Date: 2024-10-15
Authors : Preeti Bhattacharya Zarin Fatima Anil Kumar Chandana Shivani Singh Ravi Bhandari; Resham Irshad;
Page : 1270-1281
Keywords : Computed Tomography Temporomandibular Joint Class II Division 2;
Abstract
Objectives: The aim of the study was to assess and compare the changes in mandible and condylar position in between pre and post alignment of maxillary arch in patients with class II div 2 incisor pattern. Material and Method: CBCT and lateral cephalogram of 13 subjects of class II div 2 incisor pattern were taken in maximum dental intercuspation with the FH plane parallel to the floor. Dolphin Imaging 11.95 premium software was used to make all the tracings and measurements. All subjects were treated by non-extraction orthodontic therapy and were analyzed at two points of time i.e pre-treatment and post-levelling and alignment of maxillary arch. Angular and linear measurements were analyzed (5 CBCT parameters and 7 Lateral cephalogram parameters) in both vertical and horizontal plane. Result: With the increase of inclination of upper incisors and opening bite, a statistically significant positional change was noted in the condylar position both in the vertical and sagittal directions. Statistically significant increase was also observed in effective mandibular length and mandibular plane angle. Conclusion: Better condylar position and mild to moderate skeletal discrepancies associated with class II div 2 malocclusion can be addressed only by correcting the maxillary labial segment.
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