McCrory P V, Tinston S, Piddock V, Kelly P, Combe E C, Arnell R D
Department of Restorative Dentistry, Turner Dental School, University Dental Hospital of Manchester, UK.
J Dent. 1991 Jun;19(3):171-5. doi: 10.1016/0300-5712(91)90009-n.
Alumina reinforced dental porcelain has been coated directly with tin oxide by reactive ion plating. Samples were prepared at different distances from the tin source in the ion plating rig. Tensile bond strengths of treated and untreated porcelain discs to a commercially available phosphate-methacrylate based dental cement were determined. Bond strengths of certain coated samples were found to be in excess of the cohesive strength of the porcelain substrates (greater than 7.8 MPa), whereas untreated porcelain achieved an average bond strength of only 3.4 MPa. The microstructures of coatings produced under conditions similar to those which yielded the maximum bond strength were examined in a scanning electron microscope and were found to be approximately 0.5 microns thick. It is believed that ion plating has great potential for rendering inert ceramic surfaces capable of direct bonding to dental cements.
通过反应离子镀已将氧化铝增强牙科瓷直接涂覆氧化锡。在离子镀装置中于距锡源不同距离处制备样品。测定了处理过和未处理过的瓷盘与市售基于磷酸酯 - 甲基丙烯酸酯的牙科粘固剂之间的拉伸粘结强度。发现某些涂覆样品的粘结强度超过了瓷基底的内聚强度（大于7.8兆帕），而未处理的瓷平均粘结强度仅为3.4兆帕。在扫描电子显微镜下检查了在与产生最大粘结强度的条件相似的条件下制备的涂层的微观结构，发现其厚度约为0.5微米。据信离子镀在使惰性陶瓷表面能够直接与牙科粘固剂粘结方面具有巨大潜力。
