| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 의료용 고분자 부문위원회 |
| 제목 | Characteristics of Dental Pit & Fissure Sealant Containing New 3MA Mixture Prepolymers Alternative to Bisphenol A |
| 초록 | Visible light-curable polymeric dental pit & fissure sealant are now routinely used as dental materials to prevent tooth decay especially for children aged 5 to 15, usually 1 or 2 years after permanent teeth have come in. Typical dental sealants currently used contain a mixture of methacrylates, a photoinitiator system, and a large quantity of inorganic fillers.1 Photocurable dimethacrylates such as 2,2-bis[4-(2'-hydroxy-3'-methacryloyloxyproxy)phenyl] propane (Bis-GMA) are used in most commercial dental composites.2 However, this Bis-GMA contains bisphenol A which has an injurious effect on human bodies to be doubtful as an endocrine disrupter. Bisphenol A (BPA) is an industrial chemical that uses to manufacture polycarbonate and numerous plastic articles. However, the recent studies have shown that it can leach out from certain products, including the plastic lining of cans used for food, polycarbonate babies' bottles and tableware, and white dental composite resins and sealants. In this study, four kinds of new types of 3MA prepolymers having similar structure with bisphenol A have been synthesized for alternative to bisphenol A and based on Bis-GMA substitute and its derivatives (3MA and 4MA) (Fig. 1).3 The chemical structures of the methacrylated 3MA prepolymers were identified by 1H NMR and FTIR. The resulting methacrylated 3MA mixture perpolymers showed high yield and considerably low viscosity as compared to Bis-GMA control. In addition, The dental sealants containing 3MA mixture prepolymers, inorganic fillers, and some additives were prepared and compared to Gis-GMA control as a function of photoconversion, polymerization shrinkage and depth, water absorption, and mechanical properties. Fig. 1. New type of 3MA and 4MA prepolymers derived from epoxy compound (YX-4000H). References 1. V.M.Vaubelt, P.C.Moon,and B.J.Love, J. Biomed. Mater. Res., 48, 5-8 (1999). 2. B. Boutevin, J.P. Parisi, J.J. Robin, and C. Roume, Polymer, 28, 627-632 (1992). 3. K.D. Ahn, C.M. Chung, and Y.H. Kim, J. Appl. Polym. Sci., 71, 2033-2037 (1999). |
| 저자 | 이기백1, 안광덕1, 김중현2, 구현철3, 한동근1 |
| 소속 | 1한국과학기술(연), 2연세대, 3(주)덴키스트 |
| 키워드 | Dental sealant; Endocrine disrupter; Bisphenol A; Bis-GMA; 3MA prepolymer |
