치과용 가시광선 중합형 복합수지의 새로운 광개시제에 관한 연구
A Study on new Photoinitiator of Visible Light Dental Composite Resin.
최용석, 선금주,
소속 상세정보
최용석 ( Choi Yong-Seok ) - 목포과학대학 치기공과
선금주 ( Sun Gum-Ju ) - 전남대학교 공과대학 고분자 공학과
KMID : 0362120020230020049
Abstract
The photopolymerization efficiency and surface hardness of composite resin containing 1,2-phenylpropanedione (PD) and diacetyl (DA) as photoinitiators were studied by IR and Vickers hardness and the results were compared with that of camphorquinone (CQ). Relative photopolymerization efficiency of the photoinitiators increased in the order of DA < CQ < PD. Vickers hardness of composite resin containing the photoinitiators increased in the order of CQ < PD < DA. Thus, PD is a new visible light photoinitiator for dental composite resin with higher photopolymerization efficiency and surface hardness than that of CQ. Mechanical properties such as Vickers hardness, diametral tensile strength, and flexural strength of the experimental resin composite prepared by addition of the photosensitizer into a resin of bis-GMA improved with increasing the photosensitizer content and irradiation time. The resin composite of bis-GMA containing DA or PD shows better mechanical properties than that of CQ.
키워드
Photoinitiator; visible light; composite resin
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