Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
권호 표지

A STUDY ON DEVELOPMENT OF CROWN PERMANENT TEETH BY OBLIQUE CEPHALOGRAM

OBLIQUE CEPHALOGRAM에 의(依)한 영구치(永久齒) 치관(齒冠) 발육(發育)에 관(關)한 고찰(考察)

  • Cha, Moon-Ho (Department of Pedodontics, College of Dentistry, Seoul National University) ;
  • Kim, Jin-Tae (Department of Pedodontics, College of Dentistry, Seoul National University)
  • 차문호 (서울대학교 치과대학 소아과학교실) ;
  • 김진태 (서울대학교 치과대학 소아과학교실)
  • Published : 1976.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

Surveying the developmental degree of the crowns of mandibular first bicuspid in 566 korean children (264 males and 302 females) from 3 to 7 years of age by oblique cephalogram, the author got to the following results. 1. The developmental degree of the tooth crown of mandibular first bicuspid was earlier in female than in male. 2. The period of complete development of the crown of mandibular first bicuspid was 7 year 1 month in male and 6 year 3 month in female. 3. There was no significant difference in the period of complete development of the tooth crown compared with that of Japanese and American children.

Keywords