玻璃纤维桩树脂核和金属铸造桩核修复上颌前牙残根残冠的效果评价

目的 探讨上颌前牙残根残冠使用玻璃纤维桩树脂核和金属铸造桩核修复的临床效果.方法 回顾性分析2011年3月～2013年5月在丽水市第二医院就诊治疗的牙根冠缺损患者170例（170牙）的临床资料,按治疗方法不同分为金属铸造桩核组及玻璃纤维桩树脂桩核组,每组各85例.比较两组修复总成功率、修复后1、2年的咀嚼效能有效率、修复前后抗折裂强度、牙龈指数（GI）及修复齿出血指数（SBI）.结果 ①玻璃纤维桩树脂桩核组修复总成功率95.29％（81/85）]高于金属铸造桩核组84.71％ （72/85）],差异有统计学意义（P＜ 0.05）;失败的各种原因中牙龈炎、牙龈着色、冠折或根折、全冠松动或脱落、桩核松动或脱落发生率均明显低于金属铸造桩核组,差异均有统计学意义（P＜0.05）.②玻璃纤维桩树脂桩核组修复后1年的有效率与金属铸造桩核组比较差异无统计学意义（P＞0.05）;玻璃纤维桩树脂桩核组修复后2年的有效率88.24％ （75/85）]高于金属铸造桩核组80.00％ （68/85）],差异有统计学意义（P＜0.05）.③两组修复后的抗折裂强度高于修复前,GI及SBI修复后低于修复前,差异均有统计学意义（P＜0.05）;玻璃纤维桩树脂桩核组修复后GI及SBI低于金属铸造桩核组,差异有统计学意义（P＜0.05）.结论 上颌前牙残根残冠采用玻璃纤维桩核修复具有较高的成功率,较为理想的咀嚼功能,与铸造金属桩核修复的效果比较更为显著,可以在临床推广应用.

Effect comparative analysis on glass fiber post resin core and metal casting post core in maxillary anterior residual roots and crowns

Objective To investigate the clinical results on the residual crown root of maxillary anterior teeth using a glass fiber post resin core and metal casting post core.Methods 170 cases （170 teeth） with root defects from March 2011 to May 2013 in the Second Hospital of Lishui City were selected and analyzed retrospectively,all of them were divided into metal casting post core group and glass fiber post resin post core group with 85 cases in each group according to the treatment methods.Total repair success rate,masticatory efficiency rate 1,2 years after the repair,antifracture strength before and after the repair,gingival index （GI）,repairing teeth bleeding index （SBI） between the two groups were compared.Results ①Total repair success rate in glass fiber post resin post core group 95.29％ （81/85）]was higher than that in metal casting post core group 84.71％ （72/85）],the difference was statistically significant （P ＜0.05）; the occurrence rate of gingivitis,gingival coloration,crown or root fracture,crown loose or fall off,pile nuclear loose or fall off in glass fiber post resin post core group were lower than those in metal casting post core group,the differences were statistically significant （P ＜ 0.05）.②The difference of efficiency rate 1 year after the repair between the glass fiber post resin post core group and the metal casting post core group was not statistically significant （P ＞ 0.05）;the difference of efficiency rate 2 year after the repair in glass fiber post resin post core group 88.24％ （75/85）] was higher than that in metal casting post core group 80.00％ （68/85）],the difference was statistically significant （P ＜0.05）.③The anti-fracture strength after the repair in the two groups were all higher than those before the repair,GI and SBI after the repair were all lower than that before the repair,the differences were statistically significant （P ＜ 0.05）.Conclusion Glass fiber post core has a high success rate,more desirable chewing function in the repair of maxillary anterior residual roots and crowns,it has more remarkable efficiency than the metal casting post core,it is more significant in clinical application.