Shinkai K, Suzuki S, Leinfelder K F, Katoh Y
Department of Operative Dentistry, The Nippon Dental University, School of Dentistry at Niigata, Japan.
Am J Dent. 1995 Jun;8(3):149-51.
To examine the correlation between horizontal gap width and wear depth of luting resin cements and a glass ionomer used with resin composite inlays.
A cylindrical cavity (4 x 3 mm) was made on the occlusal surface of molars. Four specimens were prepared for each luting agent. The samples were subjected to a three-body wear test for 400,000 cycles. The wear values of both composite and luting agents were determined by profilometric tracings to the nearest 2 micrometers. The relationship between gap width and wear depth was confirmed by linear regression analysis.
Significant relationships existed amongst gap width, cement wear and type of cement. The effects were considerably less pronounced with microfilled cements.
研究树脂粘结水门汀及与树脂复合体嵌体联用的玻璃离子水门汀的水平间隙宽度与磨损深度之间的相关性。
在磨牙的咬合面上制备一个圆柱形窝洞（4×3毫米）。每种粘结剂制备四个样本。样本进行三体磨损试验400,000次循环。通过轮廓测量法追踪确定复合体和粘结剂的磨损值，精确到最接近的2微米。通过线性回归分析确定间隙宽度与磨损深度之间的关系。
间隙宽度、水门汀磨损和水门汀类型之间存在显著关系。微填料水门汀的影响明显较小。
