A novel four-teeth model for dental age estimation: Reliability, validity, and comparative accuracy with a seven-teeth approach.

Researchers developed and tested a simplified dental age estimation method using four lower back teeth in Indian children aged 5-16 years, finding it performed comparably to established seven-tooth models for ages 9-13 years but with reduced accuracy in older adolescents.

A plain-English summary of the study's own findings — we don't add our own claims or interpretation. Read the full paper for the complete methods and results, and apply your own clinical judgement.