牙髓血运重建术对年轻恒牙根尖周病变患者牙根管壁厚度的影响

摘要

目的 探究牙髓血运重建术对年轻恒牙根尖周病变患者牙根管壁厚度的影响.方法 选取2013年10月至2014年10月本院收治的年轻恒牙根尖周病变患者67例为研究对象,按照完全随机数表法将入选患者分为对照组(33例)和研究组(34例),研究组患者采用无机三氧化物聚合体填充,对照组患者采用Vitapex填充.治疗后3个月和6个月,比较两组患者的临床效果、牙骨质样组织沉积率、不良反应发生率、牙冠根比及牙根管壁厚度.结果 治疗后3个月,两组患者治疗总有效率比较无显著差异(P>0.05);术后6个月,研究组患者治疗总有效率明显高于对照组(P<0.05).治疗后,研究组患者牙冠根比、牙根管壁厚度、牙骨质样组织沉积率均明显高于对照组(P<0.05).研究组患者牙根折断和根管内感染发生率均显著低于对照组(P<0.05),但牙齿染色发生率明显高于对照组(P<0.05).结论 牙髓血运重建术治疗年轻恒牙根尖周病变,疗效显著,不足之处在于存在牙齿染色问题.%Objective To investigate the effect of dental pulp revascularization on the wall thickness of periodontal canals in young permanent teeth with periapical lesions. Method 67 patients with periapical lesion of the young permanent teeth admitted to our hospital were selected from October 2013 to October 2014. According to the principle of complete random number table, all patients were randomly assigned into control group (n = 33) or study group (n = 34). And patients in study group were filled with mineral trioxide aggregate, while patients in control group were filled with Vitapex. 3 months and 6 months after treatment, the clinical effect, rate of cementum tissue deposition, incidence of adverse reactions, crown root ratio and the thickness of the root canal wall of the two groups were compared. Result 3 months after the operation, there was no significantly difference in the total effective rate between the two groups (P > 0.05). However, 6 months after operation, the total effective rate of study group was higher than that of control group (P < 0.05). After treatment, the ratio of crown to root, the thickness of the root canal wall and the cementoid tissue deposition rate of study group were significantly higher than those of control group (P < 0.05). The incidence of root fracture and root canal infection in study group were lower than that of control group (P < 0.05), but the incidence of tooth staining was significantly higher than that of control group (P < 0.05). Conclusion Dental pulp revascularization of the periapical lesions of young permanent teeth gets good clinical effect. However, it might result in tooth staining.