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J Korean Acad Pediatr Dent. 2007;34(1): 27-35.
MARGINAL ADAPTATION OF STAINLESS STEEL IN POSTERIOR PRIMARY TOOTH
우주형, 장철호, 김정욱, 장기택, 김종철
서울대학교 치과대학 소아치과학교실 및 치학연구소
Corresponding Author: 김종철 ,
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ABSTRACT
Stainless steel crowns are invaluable restorative material for the treatment of badly broken down primary teeth in pediatric dentistry. But it is difficult to fit margin because selection of size is not easy and they are not adjusted for Korean children. The purpose of this study was to examine and analyze the marginal adaptation of stainless steel crown of posterior primary tooth. Marginal surface was taken by Fine Pix S602 digital camera and measurements of crown were recorded at 20 points that were randomly selected for marginal gap evaluation by Kappa image base program. 1. Mean marginal gap were large upper 2nd primary molar, lower 1st primary molar, lower 2nd primary molar, upper 1st primary molar in order(p<0.05). 2. Mean marginal surface dimension ratio was more than 20% irrespective of tooth. 3. Largest amount of marginal gap was shown at mesial surface in upper 1st, 2nd primary molar and distolingual surface in lower 1st primary molar, buccal surface in lower 2nd primary molar.
Keywords: Primary molar | Stainless steel crown | Marginal adaptation | Digital camera
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