MTA内屏障技术用于乳磨牙龋源性髓底穿孔的临床研究  

Use of MTA as internal matrix to repair pathological perforations of the pulp floor in primary molars

作　　者：徐晓岚[1] 徐耕耘[1] 杜跃谦[1] 姚淑萍[1] 

机构地区：[1]南通大学附属医院口腔科,江苏226001

出　　处：《交通医学》2010年第1期16-18,22,共4页Medical Journal of Communications

基　　金：江苏省南通市社会发展科技计划(S2007029)

摘　　要：目的:观察矿物三氧化聚合物(MTA)加药物糊剂、MTA、GIC修补乳磨牙髓室底龋源性穿孔的临床效果,以及穿孔大小对于治疗结果的影响。方法:将173例198颗龋源性髓底穿孔的乳磨牙,按穿孔大小分为两组,每组中随机分3个亚组,分别用MTA加药物糊剂(A、D组)、MTA(B、E组)、GIC(C、F组)修补,每牙均行根管治疗+穿孔修补,术后1、6、12、24月复查,并两两比较,对疗效进行评价。结果:小穿孔组疗效明显优于大穿孔组,至24月复查时疗效区别明显(P<0.01),对于大穿孔直径>2mm,MTA要优于GIC,MTA+药物组优于MTA组。结论:MTA内屏障技术修补乳磨牙髓室底穿孔(直径≤2mm)效果显著,乳磨牙髓室底大穿孔(直径>2mm)则用MTA+药物糊剂修补远期疗效理想。Objective：To observe the clinical effect on sealing pathological perforations of the pulp floor in primary molars by using MTA＋drug paste,MTA and GIC.To explore the relation between curative effect and size of perforation.Methods：198pathological perforations of the pulp floor in primary molars in 173 children were allocated to two groups by the size of perforation.Each group was randomly divided into three sub-groups which were repaired with MTA＋drug paste（Agroup,Dgroup）,MTA（Bgroup,Egroup） and GIC（Cgroup,Fgroup）.Each sub-group was treated with root canal therapy＋pergoration repaired.The results were evaluated respectively at 1,6,12 and 24 months postoperative.Results：The curative effect of the small perforation groups were superior to that of the large perforation groups,and the rate of validity in the small perforation group was significantly high than that in the large perforation group at 24 months（P0.01）.For these groups of large perforation（d2mm）,the clinic effect of repair by using MTA was better than that by using GIC.Moreover,the effect of using MTA＋drug paste was better than using MTA.Conclusion：The effect of internal matrix on sealing pathological perforation（d≤2mm） of the pulp floor in primary molars by using MTA were notable,and perforation primary molars pulp（d2mm） repaired by MTA＋drug paste combination method had better clinical effects.

关 键 词：龋源性髓室底穿孔 矿物三氧化聚合物 药物糊剂 乳磨牙 内屏障技术 

分 类 号：R781.1[医药卫生—口腔医学]