Naghsh Narges, Hosseini Arezoo, Mogharehabed Ahmad, Yaghini Jaber, Pezeshki Zahra, Khaleghi Niloofar
Dental Implants Research Center, Department of Periodontics, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
Saudi Dent J. 2024 Aug;36(8):1141-1145. doi: 10.1016/j.sdentj.2024.06.013. Epub 2024 Jun 14.
This study aimed to compare the effect of four decontamination methods on the level of residual contaminants in the re-usage of dental healing abutments.
In this experimental study, 50 used healing abutments were divided into five groups of ten as follows: 1. Control group: healing abutments were submerged in the ultrasonic device then autoclaved at 121 °C for 15 min; 2. Hypochlorite group: Same procedure as the control group, but the healing abutments were additionally immersed in 3 % hypochlorite for 20 min; 3. Chlorhexidine group: Same procedure as the control group, but the healing abutments were additionally treated with 12 % chlorhexidine; 4. Air polishing group: Same procedure as the control group, but the healing abutments were subjected to air polishing; 5. Hydrogen peroxide group: Same procedure as the control group, but the healing abutments were additionally exposed to 3 % hydrogen peroxide. Then, all healing abutments were stained with a protein-specific stain, Phloxine B. Five photographs were taken of each healing abutment, with four capturing the body (shank)and one capturing the top. All images were analysed, to measure the stained (contaminated) areas of each sample. The obtained data were analysed using statistical software (significance set at p < 0.05).
The one-way ANOVA test indicated that the average percentage of contamination residues on the occlusal surface did not show a significant difference among the five groups: control: 5.5 ± 2.8, sodium hypochlorite: 4.9 ± 2.5, Chlorhexidine: 5.3 ± 2.5, air polisher: 3.1 ± 1.8 and Hydrogen peroxide: 4.8 ± 3.1. (p = 0.26). The average percentage of residual contamination on the body surfaces (shank part) was significantly lower in the air polisher (1.7 ± 1.1) and sodium hypochlorite (2.4 ± 1.1) groups compared to the other three groups (Control: 6.1 ± 2.3, Hydrogen peroxide: 4.6 ± 0.7, Chlorhexidine: 5.4 ± 2.4) (p < 0.05).
The results of this study showed that the use of sodium hypochlorite and air polishing, alongside autoclaving and ultrasonic cleaning, effectively reduced residual contamination on the body surfaces of healing abutments.
本研究旨在比较四种去污方法对牙科愈合基台再利用时残留污染物水平的影响。
在本实验研究中，将50个用过的愈合基台分为五组，每组10个，分组如下：1. 对照组：将愈合基台浸入超声设备中，然后在121°C下高压灭菌15分钟；2. 次氯酸盐组：与对照组操作相同，但愈合基台额外浸入3%次氯酸盐溶液中20分钟；3. 氯己定组：与对照组操作相同，但愈合基台额外用12%氯己定处理；4. 空气抛光组：与对照组操作相同，但对愈合基台进行空气抛光；5. 过氧化氢组：与对照组操作相同，但愈合基台额外暴露于3%过氧化氢中。然后，所有愈合基台用蛋白质特异性染料焰红B染色。每个愈合基台拍摄五张照片，四张拍摄主体（柄部），一张拍摄顶部。对所有图像进行分析，以测量每个样本的染色（污染）面积。使用统计软件对获得的数据进行分析（显著性设定为p<0.05）。
单因素方差分析表明，五组在咬合面上污染残留的平均百分比无显著差异：对照组：5.5±2.8，次氯酸钠组：4.9±2.5，氯己定组：5.3±2.5，空气抛光组：3.1±1.8以及过氧化氢组：4.8±3.1（p=0.26）。与其他三组（对照组：6.1±2.3，过氧化氢组：4.6±0.7，氯己定组：5.4±2.4）相比，空气抛光组（1.7±1.1）和次氯酸钠组（2.4±1.1）在主体表面（柄部）的残留污染平均百分比显著更低（p<0.05）。
本研究结果表明，次氯酸钠和空气抛光与高压灭菌及超声清洗一起使用，可有效减少愈合基台主体表面的残留污染。
