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J Korean Dent Assoc. 1972;10(5):273-276. Published online May 31, 1972.
- 전치부 교환시기에 있어서 상악 치열궁의 변화
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손동수1, 윤병이2, 이긍호3
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1서울대학교 치과대학 소아치과학교실
2서울대학교 치과대학 소아치과학교실
3서울대학교 치과대학 소아치과학교실 -
- STUDIES ON DIMENSIONAL CHANGES OF UPPER DENTAL ARCH DURING THE ANTERIOR TEETH TRANSITION
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Dong-Su Shon1, Byoung-Ee Yoon2, Keung-Ho Lee3
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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.
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