Krejci I, Lutz F, Reimer M, Heinzmann J L
Department of Preventive Dentistry, Periodontology, and Cariology, Zurich University Dental Institute, Switzerland.
J Prosthet Dent. 1993 Apr;69(4):425-30. doi: 10.1016/0022-3913(93)90192-q.
The wear of ceramic inlay materials and antagonist enamel cups was measured in vitro. Per group, six MOD inlays were adhesively cemented in extracted molars. Castable glass ceramic, pressed glass ceramic, and feldspathic porcelain were used as inlay materials. A microfilled and a fine hybrid composite served as luting agents. The restorations were exposed to an in vitro wear test that corresponds to approximately 5 years of clinical service. The wear in the occlusal contact area was quantified during and at the end of the test with a three-dimensional scanner. Final wear measurements on the inlays (mean +/- SD) ranged from 21.8 +/- 8.8 microns for pressed glass ceramic to 59.0 +/- 37.9 microns for castable glass ceramic. The mean wear of the enamel antagonists ranged from 74.6 +/- 32.9 microns for pressed glass ceramic to 153.2 +/- 61.5 microns for feldspathic porcelain. The wear of the luting composites at the end of the test ranged from 4.9 +/- 5.1 microns for microfilled to 12.3 +/- 6.3 microns for fine hybrid.
在体外测量了陶瓷嵌体材料和对抗性牙釉质杯的磨损情况。每组将六个MOD嵌体粘结固定在拔除的磨牙上。使用可铸玻璃陶瓷、压制玻璃陶瓷和长石质瓷作为嵌体材料。一种微填料复合树脂和一种精细混合复合树脂用作粘结剂。这些修复体接受了相当于约5年临床使用的体外磨损试验。在试验期间和试验结束时，使用三维扫描仪对咬合接触区域的磨损进行量化。嵌体的最终磨损测量值（平均值±标准差）范围为：压制玻璃陶瓷为21.8±8.8微米，可铸玻璃陶瓷为59.0±37.9微米。牙釉质对抗体的平均磨损范围为：压制玻璃陶瓷为74.6±32.9微米，长石质瓷为153.2±61.5微米。试验结束时，粘结复合树脂的磨损范围为：微填料复合树脂为4.9±5.1微米，精细混合复合树脂为12.3±6.3微米。
