Buccolingual diameter ratio

Chronological age is associated with buccolingual diameter ratio in humans (Spearman rs = -0.371).

“PV, VR, BLR, and MDR all showed significant age-related decreases (all P < 0.05), with BLR demonstrating the strongest correlation (rs = -0.371).”

HumansTibetan individuals; adjusted for tooth typepermanent anterior toothn = 121

Age-related changes in the root canal system of permanent anterior teeth in Tibetan individuals

BMC oral health·17 Jul 2026