[A radiographic study of the relationship between crown-root ratio and periodontal bone destruction (author's transl)].
D000328:Adult; D000368:Aged; D000539:Alveolar Process / Q000503:physiopathology*; D001862:Bone Resorption / Q000000981:diagnostic imaging*; D006801:Humans; D008875:Middle Aged; D009811:Odontometry; D010510:Periodontal Diseases / Q000000981:diagnostic imaging*; D011859:Radiography