Related Experiment Video
Updated: Aug 19, 2026
Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Mandibular bone remodelling in adults: evaluation of panoramic radiographs
1Division of Oral and Maxillofacial Radiology, Department of Oral & Maxillofacial Pathology, Medicine and Surgery, Temple University School of Dentistry, Philadelphia, PA, USA. cdiodontologia@terra.com.br
Objectives:
To evaluate the changes in the antegonial angle, antegonial depth and gonial angle in edentulous and dentate patients in different age groups and between genders.
Methods:
We evaluated 312 panoramic radiographs selected from our files. The images were grouped into four 10-year age groups (by decades). The youngest age group was 40-49 years and the oldest 70-79 years. Gender, dentition status and age were recorded. Measurements were made by two observers.
Results:
No significant differences were observed for the gonial angle regarding age, gender and edentulism. For antegonial angle, the males (160.86 degrees +/-0.78) had significantly smaller values than females (165.08 degrees +/-0.58) irrespective of the dental status (P<0.0001). Edentulous individuals (161.51 degrees +/-0.83) had a smaller antegonial angle than dentate (165.05 degrees +/-0.76) and partially dentate (163.81 degrees +/-0.81) individuals (P<0.05). The antegonial depth was significantly greater for males than females (2.12 mm+/-0.09 vs 1.46 mm+/-0.07, P<0.0001). Edentulous individuals (1.87 mm+/-0.1) had significantly greater antegonial depth than dentate and partially dentate individuals (1.60 mm+/-0.1 and 1.65 mm+/-0.1, respectively).
Conclusion:
The gonial angle did not show any change with gender, age and dental status whereas the antegonial region had a resorptive pattern in the edentulous mandible. The morphology of the antegonial region was influenced by gender and dental status.
