Thonemann B, Federlin M, Schmalz G, Hiller K A
Department of Oprative Dentistry and Periodontology, University of Regensburg, Germany.
Dent Mater. 1995 May;11(3):161-8. doi: 10.1016/0109-5641(95)80012-3.
Until recently, esthetic inlay restorations in posterior teeth have been limited to cavities surrounded by enamel. Dentin adhesive systems in combination with luting composites and light-cured resin-modified glass ionomer cements offer a possibility for bonding ceramic inlays to cavities when the cervical margin is in dentin. This study was designed to compare in vitro marginal integrity of ceramic inlays bonded to dentin to restorations placed in cavities with margins located entirely in the enamel.
In the present in vitro study, the sealing abilities of a dentin bonding agent/luting composite combination (Syntac/Dual Cement, Vivadent) and resin-modified glass ionomers (Photac Fil, Photac Bond, ESPE; Dyract, De Trey Dentsply; Fuji II LC, GC Dental Industrial Corp.; and Vitremer, 3M Dental Products) used as luting agents in cavities extending beyond the cemento-enamel junction, were compared to the sealing abilities of a conventional luting composite (Vita Cerec Duo Cement, Vita) in cavities within sound enamel. SEM analysis and dye penetration were performed to evaluate marginal integrity at the cervical cavity margins.
The dentin bonding agent/luting composite combination (Syntac/Dual Cement) rendered a marginal seal within the dentin similar to the quality obtained with the conventional luting procedures within sound enamel. When three out of the five resin-modified glass ionomers were used as luting agents (Dyract, Fuji II LC and Vitremer), the results were comparable to those reported for the dentin bonding agents and the conventional method.
Light-cured resin-modified glass ionomer cements may be considered as an alternative to dentin bonding agents when the cavity margins of ceramic inlay restorations are within the dentin. However, further studies, e.g., wear resistance, must be performed.
直到最近，后牙的美学嵌体修复还仅限于牙釉质包围的窝洞。当颈部边缘位于牙本质时，牙本质粘结系统与粘结性复合树脂和光固化树脂改性玻璃离子水门汀相结合，为将陶瓷嵌体粘结到窝洞提供了一种可能性。本研究旨在比较粘结到牙本质的陶瓷嵌体与放置在边缘完全位于牙釉质的窝洞修复体的体外边缘完整性。
在本体外研究中，将牙本质粘结剂/粘结性复合树脂组合（Syntac/双固化水门汀，Vivadent）和用作粘结剂的树脂改性玻璃离子水门汀（Photac Fil、Photac Bond，ESPE；Dyract，德瑞·登士柏；Fuji II LC，GC牙科工业公司；以及Vitremer，3M牙科产品）在超出牙骨质-釉质界的窝洞中的封闭能力，与传统粘结性复合树脂（Vita Cerec Duo Cement，Vita）在完好牙釉质内的窝洞中的封闭能力进行比较。进行扫描电子显微镜分析和染料渗透试验，以评估颈部窝洞边缘的边缘完整性。
牙本质粘结剂/粘结性复合树脂组合（Syntac/双固化水门汀）在牙本质内形成的边缘封闭效果与在完好牙釉质内采用传统粘结方法获得的质量相似。当五种树脂改性玻璃离子水门汀中的三种用作粘结剂时（Dyract、Fuji II LC和Vitremer），结果与牙本质粘结剂和传统方法的结果相当。
当陶瓷嵌体修复体的窝洞边缘位于牙本质内时，光固化树脂改性玻璃离子水门汀可被视为牙本质粘结剂的替代品。然而，必须进行进一步的研究，例如耐磨性研究。
