氧化锆全瓷冠加纤维桩修复前牙复杂冠根折的疗效及远期预后分析

Efficacy and Long-term Prognosis of Zirconia All-ceramic Crown Plus Fiber Post for Repair of Anterior Teeth Complex Crown Root Fracture

目的分析氧化锆全瓷冠加纤维桩修复前牙复杂冠根折的疗效及远期预后。方法选择2008年2月至2010年1月广西医科大学附属口腔医院诊治的前牙复杂冠根折患者110例作为研究对象,将其按照随机数字表法分成观察组和对照组,各55例。观察组采用氧化锆全瓷冠加纤维桩修复治疗,对照组采用常规的正畸牵引术加牙冠延长术进行治疗,比较两组患者治疗前后牙齿松动度、牙周探诊深度、龈沟出血指数,随访时间为5年,比较两组患者的远期预后情况。结果治疗后观察组牙齿松动度、龈沟出血指数显著低于对照组[(0.19±0.04)比(0.40±0.11),(0.78±0.16)比(2.01±0.27),P<0.01],牙周探诊深度显著高于对照组[(5.99±0.14)mm比(3.97±0.10)mm,P<0.01];观察组的修复成功率显著高于对照组[92.73%(5/55)比54.55%(30/55)],差异有统计学意义(P<0.05)。观察组发生牙根折断、继发龋以及牙周炎症的患者比例明显低于对照组[1.82%(1/55)比14.55%(8/55)、1.82%(1/55)比9.09%(7/55)、3.64%(2/55)比18.18%(10/55)],差异有统计学意义(P<0.05)。结论氧化锆全瓷冠加纤维桩修复前牙复杂冠根折的临床疗效较好,可以促进患者牙齿松动度、牙周探诊深度以及龈沟出血指数的改善,同时远期预后情况较好,适合在临床上推广。

Objective To analyze the efficacy and long-term prognosis zirconia all-ceramic crown plus fiber post to repair anterior teeth complex crown root fracture. Methods From Feb. 2008 to Jan. 2010 in Affiliated Stomatology Hospital of Guangxi Medical University 110 patients for treatment of anterior teeth crown root fracture were included as research objects, and were divided into observation group and control group according to random number table method,55 cases each. The observation group adopted zirconia allceramic crown plus fiber post restoration treatment, an the control group adopted conventional orthodontic traction plus crown lengthening surgery for treatment. The tooth mobility, periodontal probing depth, gingival sulcus bleeding index of the two groups before and after treatment were compared, and 5 years of follow-up was done to compare the long-term prognosis. Results After treatment the tooth mobility, the sulcus bleeding index of the observation group were significantly lower than the control group [ （0. 19 ± 0. 04 ） vs （ 0. 40 ± 0. 11 ）, （ 0. 78 ± 0. 16 ） vs （2. 01 ± 0.27 ）, P 〈 0. 01 ], probing depth of the observation group was signifi- cantly higher than the control group[ （5.99 ±0. 14） mm vs （3.97 ±0. 10） mm,P 〈0. 01 ] ,the difference was statistically significant （ P 〈 0. 05 ） ; the repair success rate of the observation group was significantly higher than the control group [ 92. 73 % （51/55 ） vs 54. 55 % （30/55） ], the difference was statistically sig- nificant （ P 〈 0. 05 ）. Root fracture, secondary caries and periodontal disease incidence of the observation group were significantly lower than the control group [ 1.82% （ 1/55 ） vs 14. 55% （8/55）, 1.82% （ 1/55 ） vs 9.09% （7/55） ,3.64% （2/55） vs 18. 18% （10/55） ] ,the differences were statistically significant（ P 〈 0. 05 ）. Conclusion Zirconia all-ceramic crowns plus fiber post has good clinical efficacy for anterior teeth complex crown root fracture, which can promote tooth mobility, probing depth, and improve sulcus bleeding index, with good long-term prognosis, thus is promotion in clinical practice.