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전치부 교환시기에 있어서 상악 치열궁의 변화 STUDIES ON DIMENSIONAL CHANGES OF UPPER DENTAL ARCH DURING THE ANTERIOR TEETH TRANSITION

대한치과의사협회지 1972년 10권 5호 p.273 ~ 276
손동수, 윤병이, 이긍호,
소속 상세정보
손동수 ( SoHn Dong-Soo ) 
서울대학교 치과대학 소아치과학교실

윤병이 ( Yoon Byoung-Ee ) 
서울대학교 치과대학 소아치과학교실
이긍호 ( Lee Keung-Ho ) 
서울대학교 치과대학 소아치과학교실

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.

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