改良牙冠延长术结合根管及桩核冠修复后对疗效的影响因素研究

Study on the Factors influencing the curative Effect of modified Crown Lengthening combined with Root Canal and Post-core Crown Restoration

目的分析改良牙冠延长术结合根管及桩核冠修复后对疗效的影响因素,为临床预防提供参考。方法选取2018年4月—2019年6月于南阳市口腔医院经改良牙冠延长术结合根管及桩核冠修复治疗的80例患者为研究对象,所有对象经治疗后均对其进行为期6个月的康复随访,随访6个月后评估患者临床治疗效果,并依据疗效评估标准将所有患者分为有效组与无效组。统计两组一般资料,包括年龄、性别、有无口腔不良习惯等,分析上述资料差异性,找出影响改良牙冠延长术结合根管及桩核冠修复后临床疗效的相关因素。结果入选经改良牙冠延长术结合根管及桩核冠修复治疗的80例患者中,无效例数为24例,占30.00%。无效组年龄、性别、有无口腔不良习惯、术后有无残余断端方面与有效组比较,差异无统计学意义(P>0.05);无效组是否吸烟、断端形态、牙菌斑控制情况方面与有效组比较,差异显著(P<0.05)。经多项非条件Logistic回归分析检验结果显示,吸烟、台阶状断端、牙菌斑控制欠佳可能是导致改良牙冠延长术结合根管及桩核冠修复无效的影响因素(OR>1,P<0.05)。结论吸烟、台阶状断端、牙菌斑控制欠佳可能是导致改良牙冠延长术结合根管及桩核冠修复无效的危险因素,临床治疗时需积极采取应对措施,保障临床疗效。

Objective To analyze the factors influencing the curative effect of modified crown lengthening combined with root canal and post-core crown restoration,and to provide reference for clinical prevention.Methods A total of 80 patients who underwent modified crown lengthening combined with root canal and post-core crown restoration in Nanyang stomatology hospital from April 2018 to June 2019 were selected as study subjects,all patients were followed up for 6 months after treatment,and the clinical effect was evaluated after 6 months follow-up.All patients were divided into effective group and non-effective Group.The difference between the two groups was analyzed by statistical data,including age,sex,bad oral habits and so on.To find out the related factors that influence the clinical effect of modified crown lengthening combined with root canal and postcore crown.Results Among the 80 patients who were treated by modified crown lengthening combined with root canal and post-core crown,24 cases(30.00%)had no effect.There was no significant difference in age,sex,bad oral habits and residual stump between the two groups(P>0.05).Compared with the effective group,there were significant differences(P<0.05)in smoking,morphology of broken ends and control of dental plaque.The results of multiple non-conditional logistic regression analysis showed that smoking,step-shaped broken ends and poor control of dental plaque might be the factors that led to the failure of root canal and post-core crown restoration(OR>1,P<0.05).Conclusion Smoking,step-shaped broken ends and poor control of dental plaque may be the risk factors that lead to the failure of modified crown lengthening combined with root canal and post-core crown.