The spacing of teeth in relation to age.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D003724:Dental Arch / Q000033:anatomy & histology; D006801:Humans; D008334:Mandible / Q000033:anatomy & histology; D008437:Maxilla / Q000033:anatomy & histology; D008875:Middle Aged; D014070:Tooth / Q000033:anatomy & histology*