生物陶瓷材料在乳牙牙髓切断术中的应用

doi:10.19723/j.issn.1671-167X.2019.01.013

摘要/Abstract

摘要：

目的:研究生物陶瓷材料(iRoot BP Plus)作为盖髓剂用于乳牙牙髓切断术的临床可操作性和疗效,为临床应用提供参考依据。方法:选择2016年9月至2017年9月到北京大学口腔医院第三门诊部儿科就诊患者,在乳磨牙的牙髓切断术中使用生物陶瓷材料作为盖髓剂,以治疗时间为观察开始时间,以最后一次拍摄X线片的时间为观察终点时间,对患牙进行定期随访观察1年以上,每次复诊时记录患牙的临床检查和X线片检查情况,将患牙预后归为N、H、P₀、P_X、P_Y五类,N为临床和X线均未见异常,H为临床未见异常,X线表现为牙根生理性吸收,P₀为临床未见异常,X线出现牙髓钙化、牙根吸收等改变,但暂时无需治疗,P_X为临床出现或未出现异常,X线出现根尖周病变,需要根管治疗或拔除,P_Y为乳牙早失;其中N、H定义为成功,P₀、P_X、P_Y定义为失败。结果:截至2018年9月,共纳入患牙40颗(患者34人),初诊年龄为3.1~8.5岁,平均(4.7±1.2)岁,观察时间12~24个月(中位时间16个月),患牙预后符合N的牙齿34颗,符合H的2颗,符合P₀的1颗,符合P_X的3颗,符合P_Y的0颗。使用生物陶瓷材料作为盖髓剂的乳磨牙牙髓切断术12个月成功率95%。结论:使用生物陶瓷材料作为盖髓剂进行乳牙牙髓切断术取得满意疗效,可以作为盖髓剂用于乳牙牙髓切断术的常规治疗。

关键词: 牙髓切断术, 生物陶瓷, 乳磨牙

Abstract:

Objective: To evaluate the clinical characteristics and effectiveness of bioceramic putty repairment (iroot BP Plus) used as pulp capping agents on pulpotomy in primary molars. Methods: Forty primary molars were treated by pulpotomy with bioceramic putty repairmen as the pulp capping agents at the Third Clinical Division of Peking University School and Hospital of Stomatology, from September 2016 to September 2017. The children who were followed up over one year were selected as the subjects of this study. The teeth were checked clinically and radiographically during fixed intervals, and classified into one of five outcomes: N,H,P₀,P_X,P_Y. N, absence of clinical symptoms, and absence of apical radiolucency; H, absence of clinical symptoms, and nonpathologic radiographic change present; P₀, absence of clinical symptoms, and pathologic change present, no need for treatment; P_X, present or absence of clinical symptoms, pathologic change present treatment or extract immediately; P_Y, premature loss of deciduous tooth. Molars classified into N and H were regarded as successful, classified into P₀,P_X and P_Y were regarded as failed. Results:Followed up for 12-24 months (the average follow up time was 16months),thirty four children were finally included, aged from 3.1 years to 8.5 yaers (the average age was 4.3 years), forty primary molars were included. Thirty four primary molars were included into N group, with absence of clinical symptoms, absence of apical radiolucency. Two molars were included into H group with physiological root absorption. One molar was included into P₀ group with absence of clinical symptoms butinternal absorption of the root. Three molars were included into P_X group, with gingival fistula and apical radiolucency. None was included into P_Y group. Thirty six teeth got successful treatment, four molars failed. One year success rate of pulpotomy of primary molars using bioceramic putty repairment was 95%. Conclusion: Current evidence suggests that bioceramic putty repairment as a pulpotomy medicament showed satisfied clinical and radiographic result in pulpotomy of primary molars. Bioceramic putty repairment is an acceptable material when used in pulpotomy of primary molars.

Key words: Pulpotomy, Bioceramic, Primary molars

中图分类号:

R781.3

雷玥,杨颖婷,战园. 生物陶瓷材料在乳牙牙髓切断术中的应用[J]. 北京大学学报（医学版）, 2019, 51(1): 70-74.

Yue LEI,Ying-ting YANG,Yuan ZHAN. Evaluation of bioceramic putty repairment in primary molars pulpotomy[J]. Journal of Peking University(Health Sciences), 2019, 51(1): 70-74.

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