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目的研究G-BOND自酸蚀黏结系统用于牙颈部楔状缺损修复的临床疗效。方法选择2009年3月至2010年3月在大连大学附属中山医院口腔科就诊的口内有多颗颊侧颈部楔状缺损牙的患者53例(共187颗患牙),采用自身配对方法将患牙随机分为2组。试验组(94颗患牙)使用G-BOND自酸蚀黏结系统;对照组(93颗患牙)使用Adper Scotchbond全酸蚀黏结系统。治疗后7d、6个月、12个月复查,以改良的美国公共健康部(USPHS)制定的评定系统标准记录修复效果,对各组患牙的治疗效果进行比较分析。结果治疗后6个月失访2例,12个月失访3例。治疗后7d、6个月、12个月两组修复体固位率均为100%,无脱落,无继发龋。在12个月时,试验组和对照组各有2、3颗患牙边缘完整性不佳和边缘着色,组间差异无统计学意义(P>0.05)。在术后敏感方面,治疗后7d复查试验组无敏感症状出现,对照组有4颗患牙出现了敏感症状,两组间差异具有统计学意义(P<0.05)。结论 G-BOND自酸蚀黏结系统应用于修复楔状缺损的治疗效果可靠。
Objective To study the clinical efficacy of G-BOND self-etching adhesive system for the repair of wedge-shaped defects in the dental neck. METHODS: From March 2009 to March 2010, 53 cases (including 187 teeth) with multiple buccal-neck wedge-shaped defects in the oral cavity of Zhongshan Hospital Affiliated to Dalian University were treated with self-matching method Tooth were randomly divided into two groups. The G-BOND self-etching adhesive system was used in the test group (94 teeth) and the Adper Scotchbond all-acid bonding system in the control group (93 teeth). At 7d, 6months and 12months after treatment, the patients were reviewed with revised system standard of USPHS, and the treatment effect of each group of teeth was compared. Results Two cases were lost in 6 months after treatment and 3 cases were lost in 12 months. At 7 days, 6 months and 12 months after treatment, the restoration rates of the two groups were all 100%, no shedding and no secondary caries. At 12 months, there were 2, 3 teeth with poor edge integrity and marginal color in the test group and the control group, respectively. There was no significant difference between the two groups (P> 0.05). In terms of postoperative sensitivity, there were no sensitivities in the test group after 7 days of treatment. There were 4 cases of sensory symptoms in the control group, the difference between the two groups was statistically significant (P <0.05). Conclusion G-BOND self-etching adhesive system for the treatment of wedge-shaped defects of the treatment effect is reliable.