牙冠延长术后桩核修复在牙体缺损至龈下残根残冠患者中的应用观察

目的 观察牙冠延长术后桩核修复在牙体缺损至龈下残根残冠患者中的应用效果.方法 选取我院2016年10月～2019年11月期间接收的牙体缺损至龈下残根残冠患者140例,根据随机数字表法分成研究组(70例)与对照组(70例),其中对照组接受直接桩核冠修复治疗,研究组接受牙冠延长术后桩核修复治疗.比较两组临床疗效、美观满意度...

Observation on the application of post-core restoration with crown lengthening in patients withtooth defect to subgingival residual root and residual crown

Objective To observe the effect of post-core restoration after crown lengthening in patients with dental defect to subgingival residual root and residual crown.Methods A total of 140 patients with dental defect to subgingival residual root and residual crown received in our hospital from October 2016 to November 2019 were selected.According to the random number table method,they were divided into study group(70 cases)and control group(70 cases).The control group received direct post-core crown repair treatment.The study group received post-core restoration treatment after crown lengthening.The clinical efficacy,aesthetic satisfaction,the levels of inflammatory factors in gingival crevicular fluid[nitric oxide(NO),interleukin-1β(IL-1β)and prostaglandin E2(PGE2)]before and after treatment,periodontal status[probing depth(PD),sulcus bleeding index(SBI)]before treatment,6 weeks and 3 months of treatment were compared between the two groups.Results The total effective rate of the study group was 97.14%(68/70),which was higher than that of the control group 80.00%(56/70)(P<0.05).After 6 weeks and 3 months of treatment,the PD of the study group was lighter than that of the control group,and the SBI was less than that of the control group(P<0.05).After 3 days of treatment,the levels of NO,PGE2 and IL-1βin the study group were lower than those in the control group(P<0.05).Compared with 88.57%(62/70)of the control group,98.57%(69/70)of the study group's aesthetic satisfaction was significantly higher(P<0.05).Conclusion Post-core restoration after crown lengthening can be used in patients with dental defect to subgingival residual root and residual crown,which can enhance the treatment effect,improve the condition of periodontal recovery,reduce the inflammatory factors in the gingival crevicular fluid,and improve the aesthetics.