ABSTRACT The aim of the study was to evaluate the marginal adaptation of various hybrid ceramics inlays before and after thermal cycling. Twenty-four extracted human molars were received inlay preparation, and randomly divided into three groups (n = 8/group). Specimens were restored with Ceramage by experienced technician, Enamic or Lava Ultimate by CAD/CAM using CEREC Omnicam. After cementation, all restorations were subjected to thermal cycling. Marginal gaps were measured under a stereomicroscope. The overall mean marginal gaps of the three groups were significantly different (p < 0.05) before thermal cycling, which were all within the clinically acceptable range. The digital intraoral impression and CAD/CAM systems did not show superior accuracy compared to the traditional technique, during the hybrid ceramic inlays manufactured operation. Thermal cycling had no effect on marginal adaptation of the different hybrid ceramic inlays (p > 0.05). Gingival margin presented larger gaps compared to occlusal and axial margin in all hybrid ceramic inlays.

中文翻译：

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热循环后不同混合陶瓷嵌体的边际适应

摘要 本研究的目的是评估热循环前后各种混合陶瓷嵌体的边缘适应性。24颗拔出的人磨牙接受嵌体制备，随机分为三组（n=8/组）。样本由经验丰富的技术人员使用 Ceramage 修复，Enamic 或 Lava Ultimate 通过 CAD/CAM 使用 CEREC Omnicam 修复。粘接后，所有修复体都进行热循环。在立体显微镜下测量边缘间隙。三组的总体平均边际间隙在热循环前有显着差异（p < 0.05），均在临床可接受的范围内。在混合陶瓷嵌体制造操作期间，数字口腔内印模和 CAD/CAM 系统与传统技术相比没有显示出更高的准确性。热循环对不同混合陶瓷嵌体的边际适应性没有影响（p > 0.05）。与所有混合陶瓷嵌体的咬合和轴向边缘相比，牙龈边缘呈现更大的间隙。