Aberg C H, van Dijken J W, Olofsson A L
Department of Cariology, Dental School, Umeå University, Sweden.
Acta Odontol Scand. 1994 Jun;52(3):140-9. doi: 10.3109/00016359409027588.
Ceramic inlays offer a good alternative to posterior composites, which still show a high polymerization shrinkage. The thin cement layer will reduce the total amount of shrinkage and probably result in a better marginal adaptation and decreased marginal leakage. Fired feldspathic ceramic inlays cemented with either a glass ionomer cement or a dual-cured composite resin luting cement were compared intraindividually. During a 3-year period 118 inlays, 59 in each group, were examined. Eleven inlays were evaluated as non-acceptable during the period: two (3.4%) in the composite resin group and nine (15.3%) in the glass ionomer cement group. In the composite group one inlay fractured partially and one inlay was replaced because of postoperative sensitivity. In the glass ionomer group four inlays were totally lost, and partial fractures occurred in five inlays. In the fractured glass ionomer cemented inlays the cement was still in place in the cavities. Eight patients reported post-operative sensitivity. No secondary caries was detected around the inlays even though 46% of the patients were considered high caries risk patients.
陶瓷嵌体为后牙复合树脂提供了一个很好的替代方案，后牙复合树脂仍表现出较高的聚合收缩率。较薄的粘结剂层将减少收缩总量，并可能导致更好的边缘适应性和减少边缘微渗漏。对分别用玻璃离子水门汀或双固化复合树脂粘结剂粘结的烤瓷长石质陶瓷嵌体进行了个体内比较。在3年期间，对118个嵌体进行了检查，每组59个。在此期间，有11个嵌体被评估为不合格：复合树脂组中有2个（3.4%），玻璃离子水门汀组中有9个（15.3%）。在复合树脂组中，有1个嵌体部分折断，1个嵌体因术后敏感而被替换。在玻璃离子水门汀组中，有4个嵌体完全脱落，5个嵌体发生部分折断。在折断的玻璃离子水门汀粘结嵌体中，粘结剂仍留在窝洞内。8名患者报告有术后敏感症状。尽管46%的患者被认为是高龋风险患者，但在嵌体周围未检测到继发龋。
