다양한 치과용 와동 이장재 및 베이스 전임상 평가
Preclinical Test of the Various Types of Dental Cavity Bases and Liners
조만종, 이상혁, 이상훈, 양형철, 임범순,
소속 상세정보
조만종 ( Cho Man-Jong ) - 서울대학교 치의학대학원 치과생체재료과학교실
이상혁 ( Lee Sang-Hyeok ) - 서울대학교 치의학대학원 치과생체재료과학교실
이상훈 ( Lee Sang-Hoon ) - 서울대학교 치의학대학원 치과생체재료과학교실
양형철 ( Yang Hyeong-Cheol ) - 서울대학교 치의학대학원 치과생체재료과학교실
임범순 ( Lim Bum-Soon ) - 서울대학교 치의학대학원 치과생체재료과학교실
KMID : 0362220120390040327
Abstract
The cavity liners and bases were used to provide a barrier or protective layer between the exposed dentin and final restoration. This buffer layers might act to reduce or even eliminate postoperative sensitivity. Recently, their light-activated derivatives were introduced as new products. Since many of the new products introduced as a cavity liner or a cavity base, the core properties (such as solubility, acid erosion, ion release, strength, radiopacity and biocompatibilities) of those products should be evaluated based on the proper International Standards and Specifications. For preclinical test, several core properties of eleven commercial products (calcium hydroxide, zinc oxide phosphate, zinc oxide eugenol, glass ionomer, and hydroxyapatite) were tested. Solubility, acid erosion, compressive strength and flexural strength, radiopacity, and cytotoxicity were evaluated according to the International Standards (ISO 3107, 4049, 9917-1, and 9917-2). Almost all experimental groups (zinc oxide eugenol, zinc phosphate, and glass ionomer cements) except for calcium hydroxide groups were met the requirements of ISO specifications. As there were no ISO specifications for the dental calcium hydroxide, it was necessary for suggestion for the guideline of calcium hydroxide products to evaluate those products properly. Commercially available products tested in this study showed proper physical and biological properties for clinical applications.
키워드
Cavity liner; Base; Calcium hydroxide; Zinc oxide eugenol; Zinc phosphate; Glass ionomer
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