Kostka E C, Noack M J, Blunck U, Roulet J F
FU Berlin, Abt. Zahnerhaltung Nord.
Dtsch Zahnarztl Z. 1991 Sep;46(9):615-7.
Ceramic inlays have shown good marginal seal as long as the margins of the cavities are located in enamel. The purpose of this study was to investigate the marginal seal of ceramic inlays with the cervical margins situated in dentin and to determine the effectiveness of dentin bonding agents. Sintered ceramic inlays were adhesively luted either without dentin bonding agents or with the use of Gluma or Miragebond. After thermocycling and incubation in a colored dye the penetration depth of the dye was measured on sequential sections. The used dentin bonding agents did not improve marginal seal. The glass ionomer cement base was able to prevent further penetration in most of the cases when deep leakage occurred. Unless a tight marginal seal in dentin can be achieved, the indication for adhesively luted inlays must be limited to cavities with margins located in enamel.
只要窝洞边缘位于牙釉质内，陶瓷嵌体就显示出良好的边缘封闭性。本研究的目的是调查颈部边缘位于牙本质内的陶瓷嵌体的边缘封闭性，并确定牙本质粘结剂的有效性。烧结陶瓷嵌体要么不使用牙本质粘结剂，要么使用Gluma或Miragebond进行粘结。经过热循环和在有色染料中孵育后，在连续切片上测量染料的渗透深度。所使用的牙本质粘结剂并未改善边缘封闭性。当发生深层渗漏时，玻璃离子水门汀基底在大多数情况下能够防止进一步渗透。除非能够在牙本质中实现紧密的边缘封闭，否则粘结嵌体的适应证必须限于边缘位于牙釉质内的窝洞。
