STUDIES ON DIMENSIONAL CHANGES OF UPPER DENTAL ARCH DURING THE ANTERIOR TEETH TRANSITION

Shon,  Dong-Su; Yoon,  Byoung-Ee; Lee,  Keung-Ho

J Korean Dent Assoc > Volume 10(5); 1972 > Article

The Journal of The Korean Dental Association 1972;10(5):273-276.
Published online May 31, 1972.

전치부 교환시기에 있어서 상악 치열궁의 변화

손동수¹, 윤병이², 이긍호³

^¹서울대학교 치과대학 소아치과학교실
^²서울대학교 치과대학 소아치과학교실
^³서울대학교 치과대학 소아치과학교실

STUDIES ON DIMENSIONAL CHANGES OF UPPER DENTAL ARCH DURING THE ANTERIOR TEETH TRANSITION

Dong-Su Shon¹, Byoung-Ee Yoon², Keung-Ho Lee³

¹Dept. of Pedodontics, College of Dentistry, Seoul National University
²Dept. of Pedodontics, College of Dentistry, Seoul National University
³Dept. of Pedodontics, College of Dentistry, Seoul National University

Abstract

The original sample in this investigation included 36 children around the age of eight (mean age:8 year-lmonth) at the beginning. Study casts were obtained and measured every 6 months in two years of longitudinal study period in order to observe the changes of maxillary dental arch as well as the eruptional status of the maxillary lateral incisors. The results were as follows.: 1) The length of upper dental arch was increased gradually during the examination period. 2) The width between maxillary first molars was increased gradually during the examination period. 3) Intercanine distance in upper dental arch was increased gradually and the increment was conspicuous immediately after the eruption of maxillary lateral incisors.