CT-Based Age Estimation Using Maxillary Canine Morphometrics in a Japanese Cohort

A CT-based age estimation model using permanent maxillary canine measurements achieved RMSE 1.29 years (R² 0.89) for ages 1-16 years in a Japanese cohort; longitudinal validation showed mean difference of 0.12 years (1.4 months) between predicted and chronological age.

• Growth curves for canine length and apical width were modeled using Gompertz and Gamma-type functions.
• In 14 longitudinal cases, individual prediction errors ranged from 0.25 to 2.09 years.
• The model was developed on 726 teeth (ages 1–23 years) and validated on 75 teeth; generalizability to other tooth types remains unknown.

Automated summary

RadPigeon summaries are original and for information only. They are not clinical advice.