Are Skeletal and Dental Characteristics, as well as Certain Aspects of Treatment, Related to Bony Condylar Changes?
Date of Award
Master of Clinical Dentistry
Dr. Antonios Mamandras
Introduction: Degenerative joint disease (DJD) is mildly prevalent in a pre-orthodontic population and can contribute to jaw pain and skeletal relapse post-orthodontic treatment.
Purpose: To determine whether craniofacial form or particular treatment modalities are related to TMJ condylar degeneration.
Materials and methods: The cephalometric radiographs of 61 subjects with moderate- severe condylar degeneration (as diagnosed from panoramic radiographs) were traced and treatment factors were recorded.
Results: Cephalometric findings of significance in this study include increased facial convexity, increased ANB, decreased SNB, decreased Pg-NA perpendicular, increased mandibular plane angle, increased gonial angle, increased overjet, and upright lower incisors when compared to cephalometric standards. Treatment modalities of significant prevalence are orthognathic surgery (23%) and Class II or III elastics (61%).
Conclusions: Results from this study, although inconclusive without a control group, indicate a retrognathic dolichofacial type. Patients requiring orthognathic surgery and with dental anteroposterior discrepancies tend to have more condylar degeneration
Bharwani, Daulatkhanu Z., "Are Skeletal and Dental Characteristics, as well as Certain Aspects of Treatment, Related to Bony Condylar Changes?" (2009). Digitized Theses. 3794.