无水乙醇湿粘接技术在无髓恒牙充填治疗中的应用

Application of ethanol wet-bonding in the resin restoration on pulpless permanent teeth

目的对比无水乙醇湿粘接技术与传统湿粘接技术对于无髓恒牙的树脂充填效果。方法共98例在北京大学口腔医院门诊部儿童口腔科就诊的12~16岁患者纳入本研究。纳入无髓恒牙107颗,其中前牙61例,前磨牙3例,磨牙43例。患者/患牙随机分为两组,其中实验组（无水乙醇湿粘接）54例（切牙及侧切牙29例,前磨牙2例,磨牙23例）,对照组（传统湿粘接）53例（切牙及侧切牙32例,前磨牙1例,磨牙20例）,由同一医生完成所有临床操作。12个月后复查,并根据Ryge提出的USPHS评价系统制定出本研究的临床评价标准,请另两名医生在双盲的条件下进行直接临床评价。本研究使用运用SPSS软件对所得数据进行统计学分析,临床USPHS评分使用卡方检验进行比较。结果12个月后复查,临床检查结果显示,实验组牙齿USPHS评分均为0,对照组中2例磨牙记录为1。卡方检验实验组与对照组间,12个月后临床检查结果差异无统计学意义（P〉0.05）。结论本研究显示无水乙醇湿粘接技术进行树脂粘接修复12个月后临床检查结果与传统湿粘接技术无明显差异。

Objective The aim of this study is to compare the bonding effect of ethanol wet-bonding and current wet-bonding in the resin filling on pulpless permanent teeth. Methods 98 patients, aged 12-16 years, treated at Outpatient Center of Peking University School and Hospital of Stomatology were recruited. 107 pulpless permanent teeth were used, including 61 anterior teeth, 3 premolars and 43 molars. The patients/teeth were divided into two groups in random. 54 teeth were included in test group, 29 incisors and lateral incisors, 2 premolars and 23 molars. 53 teeth were include in control group, 32 incisors and lateral incisors, 1 premolar and 20 molars. All clinic operations were performed by the same pediatric dentist. Clinic review was taken after 12 months, and the standards of clinic assessment were drafted according USPHS system presented by Ryge. All the teeth were assessed by two clinicians with double-blind. All statistical analyses were carried out using SPSS software. The Chi-squared test was used to analysis the USPHS scores. Results In the review after 12 months, all teeth in test group scored 0, and 2 molar score 1 in USPHS system. There is no difference of scores between the test group and control group after 12 months by Chi-squared test （P〉0.05）. Conclusion The result of this study shows that there is no difference of clinic assessment results between ethanol wet-bonding and current wetbonding in the resin filling on pulpless permanent teeth after 12 months.