Age‐related radiomorphometric changes on panoramic radiographs

• Main Authors: Yeon‐Hee Lee, Q‐Schick Auh, Yang‐Hyun Chun, Jung‐Sub An
• Format: Article
• Language: English
• Published: Wiley 2021-08-01
• Series: Clinical and Experimental Dental Research
• Subjects: age estimation; first molar; mandibular canal; mental foramen; panoramic radiograph; pulp‐to‐tooth ratio
• Online Access: https://doi.org/10.1002/cre2.375

Abstract Objectives We aimed to analyse age‐related anatomical changes in teeth and mandibular structures using panoramic radiographs. Materials and Methods We included 471 subjects aged 13–70 years (mean, 35.12 ± 18.72 years). Panoramic radiographs were used to record intraoral condition and radiomorphometric parameters. After grouping the subjects by age decade, descriptive statistics and analysis of variance were performed to assess age‐related patterns. Results The number of missing teeth, endodontically treated teeth, full veneer crowns, and implant prosthesis increased with age (all p < .05). The prevalence of periodontitis significantly increased after the 40s and was the highest in the 60s (57.1%). The maxillary canine root was the longest in the 10s and 20s (p < .001). With age, the mandibular canal and mental foramen moved towards the alveolar bone crest, on the opposite side of the mandibular inferior border. The pulp area and pulp‐to‐tooth ratio of maxillary/mandibular first molars were significantly higher in the 10s and 20s than in other age groups (all p < .05). Conclusions We provided comprehensive information on age‐related anatomical changes in teeth and mandibular structures based on panoramic radiographs. Various radiographic parameters showed specific changes with increasing age. Assessing these age‐related changes can be useful in determining an individual's age, and may aid in medico‐legal and forensic judgments.