각기 다르게 분류되는 methacrylate 기반의 복합레진 중합 평가
Investigation of polymerization of methacrylate-based composite resins those belong to different categories
이주희, 노정훈, 설효정, 김형일, 권용훈,
소속 상세정보
이주희 ( Lee Ju-Hee ) - 부산대학교 치의학전문대학원 치과재료학교실
노정훈 ( Ro Jung-Hoon ) - 부산대학교 의학전문대학원 의공학교실
설효정 ( Seol Hyo-Joung ) - 부산대학교 치의학전문대학원 치과재료학교실
김형일 ( Kim Hyung-Il ) - 부산대학교 치의학전문대학원 치과재료학교실
권용훈 ( Kwon Yong-Hoon ) - 부산대학교 치의학전문대학원 치과재료학교실
KMID : 1035320140410040273
Abstract
The present study investigated the polymerization of composite resins which belong to different categories. Each four different composite resins (low shrinkage, nanohybrid, microhybrid, and flowable resins) from three different manufacturers were chosen and light cured. Through the study, polymerization shrinkage and flexural properties were evaluated. Regardless of product and manufacturer, low shrinkage and flowable resins showed the lowest (7.7-12.3 μm) and highest (26.2-35.4 μm) polymerization shrinkage, respectively. The shrinkage difference between nanohybrid and microhybrid products was low. The flexural properties (strength and modulus) from products of different categories and from products of the same manufacturer had no consistency. All these values showed inconsistently changing pattern after immersion in distilled water. The tested composite resins belong to different categories but products of the same manufacturer and composite resins belong to the same category but products of different manufacturers had inconsistently different flexural properties.
키워드
Composite resin; Polymerization shrinkage; Flexural properties
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