title: [Age estimation from tooth attritions of lower incisors--discussion on the "Amano's method"].
abstract: As a method of age estimation from teeth we focused our attention on attritions of lower incisors. Using the Amano's method, we took records of tooth attritions in the planted state of 83 subjects whose ages ranged from 14 to 76 years. A positive correlationship was found to exist between the tooth attrition index and the actual age, allowing to establish the following formula which graphically shows a straight line: Y = 8.505X + 26.073 (r = 0.607), where X is the mean of attrition indexes of lower incisors and Y, the estimated age. In our method of age estimation through attrition indexes, we took advantage of probability and confidence interval. In addition, our method was contrasted with Amano's method, a widely used one in Japan.
authors.affiliation: Department of Legal Medicine, Hokkaido University School of Medicine, Sapporo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Tomaru
authors.forename: Y
authors.initials: Y
authors.lastname: Uchiyama
authors.forename: K
authors.initials: K
authors.lastname: Kobayashi
authors.forename: Y
authors.initials: Y
authors.lastname: Kudo
authors.forename: H
authors.initials: H
authors.lastname: Mikami
authors.forename: M
authors.initials: M
authors.lastname: Endo
authors.forename: T
authors.initials: T
authors.lastname: Tsukamoto
authors.forename: K
authors.initials: K
authors.lastname: Terazawa
mesh_terms: D000293:Adolescent; D000328:Adult; D000366:Age Determination by Teeth / Q000379:methods*; D000368:Aged; D005260:Female; D005554:Forensic Medicine; D006801:Humans; D008297:Male; D008875:Middle Aged; D011336:Probability