Clinical Report of Application in Residual Root of Molar Crown Lengthening Surgery

Objective To observe the clinical effect of restoration of residual root of molar with crown lengthening surgery.Methods Fifteen residual roots were included in this study.Crown lengthening surgery was first conducted and then post-core crowns were fabricated in all the cases.Then clinical effects were evaluated.Results All cases succeeded.The color of the gingival margin looked normal and the crowns were in good periodontal condition.Conclusion Crown lengthening surgery is an effective method for the protection and restoration of residual root,but should be used properly.