Objective To evaluate the effect of marginal types of mental-ceramic crown on gingival health.
目的观察金属烤瓷冠因边缘形态变化而对牙龈健康的影响。
PURPOSE: To study the effect of ion-exchange treatment on the fracture resistance of hot pressable ceramic crown.
目的：研究国产陶瓷表面离子交换处理对热压铸瓷冠抗碎裂载荷的影响。
The all-ceramic crown has been applied in clinical practice for its esthetic value and excellent biocompatibility.
全瓷冠因其美观、生物相容性好，正逐渐应用于临床。
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