改良乳牙根管充填材料体内降解匹配性与临床效果

发布时间：2018-05-21 12:54

本文选题：牙 + 乳　；参考：《北京大学学报(医学版)》2015年03期

【摘要】：目的:观察改良乳牙根管充填材料(modified primary root canal filling,MPRCF)的体内降解速度与乳牙根吸收的匹配情况及临床效果。方法:临床纳入155名患儿的160颗患慢性牙髓炎的乳磨牙,随机分为3组,分别使用MPRCF、氧化锌丁香油糊剂(zinc oxide-eugenol,ZOE)和氢氧化钙碘仿糊剂Vitapex行根管治疗,观察6个月和12个月时的材料降解匹配情况及临床疗效。结果:ZOE和MPRCF在6个月和12个月的临床和放射学成功率均为100.0%;Vitapex 6个月的临床和放射学成功率为100.0%和80.4%,12个月时则为94.5%和60.7%。MPRCF与Vitapex 12个月的成功率差异有统计学意义(P0.01)。12个月时超填材料的吸收情况:ZOE组14.3%完全吸收,Vitapex组100%吸收,MPRCF组71.4%完全吸收,3组间差异有统计学意义(P0.001)。12个月时根充材料降解速度与牙根的匹配率MPRCF(40.9%)优于ZOE(5.8%)和Vitapex(7.2%),差异有统计学意义(P=0.001)。结论:改良乳牙根管充填制剂降解速度及与牙根生理性吸收速度的匹配度优于目前临床使用材料Vitapex和ZOE,临床和放射学成功率不低于现有材料。
[Abstract]:Objective: to observe the in vivo degradation rate and the clinical effect of modified primary root canal filling in primary teeth root canal filling material. Methods: 160 primary molars of 155 children with chronic pulpitis were randomly divided into 3 groups. The root canal was treated with MPRCF, zinc oxide eugenolol paste (ZOEO) and calcium hydroxide iodoform paste (Vitapex), respectively. To observe the material degradation match and clinical effect at 6 and 12 months. Results the clinical and radiologic success rates of 60.7%.MPRCF and MPRCF at 6 and 12 months were 100.0% and 80.440%, respectively, which were significantly higher than those of 60.7%.MPRCF and Vitapex at 12 months (P 0.01). The absorption of overfilled materials was 14.3% in the group of 1: ZOE, 100% in the group of vitapex, 100% in group MPRCF, 71.4% in group MPRCF, and 71.4% in group MPRCF. There was a significant difference among the three groups. At 12 months, the degradation rate of root filling materials and the matching rate of root filling materials (MPRCFCF-40.9) were better than those of ZOE5.8) and Vitapexexus 7.2t2. The difference was statistically significant. Conclusion: the rate of degradation of the modified primary tooth root canal filling preparation and the matching rate with the rate of root physiological absorption are better than that of the clinical materials Vitapex and ZOE.The success rate of clinical and radiology is not lower than that of the existing materials.
【作者单位】：北京大学口腔医学院·口腔医院门诊部;北京大学口腔医学院·口腔医院儿童口腔科;
【分类号】：R783.1

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