窝沟封闭剂周围的 Class V 复合树脂修复体在边缘超声洁治和超声牙刷洁治后的微渗漏情况。

Microleakage around Class V Composite Restorations after Ultrasonic Scaling and Sonic Toothbrushing around their Margin.

机构信息

Department of Oral Rehabilitation, Augusta University Dental College of Georgia, Augusta, GA, USA.

Division of Biomaterials, University of Alabama at Birmingham, Birmingham, AL, USA.

出版信息

J Esthet Restor Dent. 2017 Feb;29(1):41-48. doi: 10.1111/jerd.12262. Epub 2016 Sep 9.

DOI:10.1111/jerd.12262

PMID:27612323

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5292089/

Abstract

OBJECTIVES

To measure microleakage around class V composite restorations after piezoelectric ultrasonic scaling and sonic toothbrushing.

METHODS

3 mm × 2 mm × 1.5 mm boxes were prepared on buccal and lingual surfaces of extracted molars centered on the cementum-enamel junction. Half the preparations were beveled (0.5 mm). Preparations were restored with composite and polished. Restorations on one side of the teeth were either traced with an ultrasonic scaler (60 seconds, n = 16) or brushed in a sonic toothbrushing machine (2 hours, n = 16). After thermocycling (10,000 cycles/5-55°C), specimens were immersed in 5 wt% Fuchsine solution (24 hours). Samples were sectioned and evaluated for percentage of dye penetration. Data were analyzed with an exact Wilcoxon rank-sum test and exact Wilcoxon signed-rank test (alpha = 0.05).

RESULTS

Microleakage was observed at the cementum-composite interface but not the enamel-composite interface. There was not a statistically significant effect of the bevel for ultrasonic scaling or for sonic toothbrushing. Data obtained with and without a bevel were combined and a statistically significant difference in microleakage between the treatment and control sides of the tooth were found for ultrasonic scaling (32.5%±44.9%, n = 16; p = 0.016) but not sonic toothbrushing (2.5% ± 41.2%, n = 16; p = 1.0).

CONCLUSIONS

Piezoelectric ultrasonic scaling increased microleakage at cementum-composite interface and there was no difference in microleakage with the use of a bevel.

CLINICAL SIGNIFICANCE

Piezoelectric sonic scaling around Class V composite restorations with margins in cementum should be avoided. Beveled margins will not reduce the incidence of microleakge resulting from ultrasonic scaling in Class V restorations. Placing the apical margin of the restoration in enamel should be attempted whenever possible to prevent future microleakage. (J Esthet Restor Dent 29:41-48, 2017).

摘要

目的

测量超声洁牙和声波牙刷对 V 类复合树脂修复体边缘微渗漏的影响。

方法

在磨牙的颊面和舌面，从牙骨质-釉质交界处开始制备 3mm×2mm×1.5mm 的盒状结构，一半的预备体有斜面（0.5mm）。用复合树脂修复，然后抛光。一侧的修复体分别用超声洁牙器（60 秒，n=16）或声波牙刷（2 小时，n=16）处理。冷热循环（10000 次/5-55°C）后，将标本浸入 5wt%碱性品红溶液中（24 小时）。对样本进行切片，评估染料渗透百分比。采用确切的 Wilcoxon 秩和检验和确切的 Wilcoxon 符号秩检验（α=0.05）进行数据分析。

结果

在牙骨质-复合树脂界面观察到微渗漏，但在釉质-复合树脂界面没有观察到。超声洁牙和声波牙刷处理斜面没有统计学意义。将有斜面和无斜面的数据合并，发现超声洁牙时处理组和对照组牙齿之间的微渗漏有统计学差异（32.5%±44.9%，n=16；p=0.016），但声波牙刷时没有（2.5%±41.2%，n=16；p=1.0）。