两种纳米树脂抛光方法的效果比较

Comparison of Two Methods of Nanometer Resin Polishing

目的:比较Sof-lex彩虹抛光碟和火焰状白石尖抛光纳米树脂的临床效果。方法:2008-2010年在北京大学深圳医院口腔科就诊的牙髓活力正常的双侧上中切牙楔状缺损患者50名,用Z350树脂充填修复,每名患者一侧用Sof-lex彩虹抛光碟抛光,一侧用火焰状白石尖抛光,按随机方法左右交替,2年后用改良的美国公共健康部(USPHS)制定评定系统临床直接评定标准评价抛光效果。统计分析采用SPSS19.0软件,P<0.05为差异有统计学意义。结果:修复2年后,Sof-lex彩虹抛光碟抛光的树脂修复效果优于火焰状白石尖。结论:纳米树脂修复后,采用Sof-lex彩虹抛光碟抛光能取得更好的临床疗效。

Objective To compare the polishing effects of Sof-lex disks and flaming profile white stone tip on nanometer resin. Methods 50 patients with bilateral wedge-shaped defect and normal pulp in upper middle incisors received cavity filling treatment by Z350 resin in Peking University Shenzhen hospital from 2008 to 2010. For each patient, tooth of one side was polished by Sof-lex disks, and the other side was polished by white flaming profile stone tip, and left or right side was alternatively changed randomly. The polishing effects were evaluated by modified USPHS evaluation criterion 2 years later. SPSS19 software package was used for statistical analysis. Significance was set at P〈0.05. Results The polishing effects of Sof-lex disks were better than white flaming profile stone tip 2 years later. Conclusion Polishing nanometer resin by Sof-lex disks can achieve better clinical effects after filling.