Objective: To evaluate the clinical of using prefabricated cylindrical root canal pin to lengthen the clinicalcrown and restoring anterior tooth and premolar defect with PFM.
目的:评价应用预成圆柱形根管钉对前牙牙体缺损患者冠再接后烤瓷修复体的临床效果。
3
Objective to investigate the effect of labial periodontal of PFM crown after clinical tooth preparation used by dental magnifier.