What is the defect of the structure of the tooth(teeth)?
什么是牙齿结构上的缺陷呢？
Objective to evaluate the aesthetic effects of anterior teeth defect restored with fiber posts and resin cores after long-term clinical observation.
目的：使用纤维桩树脂核修复前牙牙体缺损，通过对修复体长期的临床观察，评价其美学效果。
Objective: To explore the clinical effect of full crown with core prosthesis on the massive defect of posterior teeth.
目的：观察探讨核全冠修复后牙大面积缺损的临床应用效果。
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