Abstract：
To determine and compare the frequency of contamination on different sites of healing abutments (HAs) after sterilization with Phloxine B dye on unused and used HAs after sterilization.
A total of 60 HAs were divided into two test groups: (1) used and sterilized and (2) a control group (unused). The test group was evaluated for contamination after sterilization; the control group did not undergo any procedure. Data were analyzed using SPSS version 22 (IBM). Descriptive statistics were used to determine the frequency of contamination in the different groups and at the different HA sites. Chi-square test was used to evaluate the association of frequency of contamination with the HA site and design. The level of significance was kept at P ≤ .01.
The test group showed more contamination compared to the control group. The most contaminated sites were the screw thread and the screwdriver engagement location.
HA reuse is cost-effective, but cleaning and sterilization was not effective for these components; thus, HAs need to be reused with caution because they were heavily contaminated when compared to new HAs. Among the different sites, the screw thread and screwdriver engagement sites were more prone to contamination. HA type did not influence the frequency of contamination.
A total of 60 HAs were divided into two test groups: (1) used and sterilized and (2) a control group (unused). The test group was evaluated for contamination after sterilization; the control group did not undergo any procedure. Data were analyzed using SPSS version 22 (IBM). Descriptive statistics were used to determine the frequency of contamination in the different groups and at the different HA sites. Chi-square test was used to evaluate the association of frequency of contamination with the HA site and design. The level of significance was kept at P ≤ .01.
The test group showed more contamination compared to the control group. The most contaminated sites were the screw thread and the screwdriver engagement location.
HA reuse is cost-effective, but cleaning and sterilization was not effective for these components; thus, HAs need to be reused with caution because they were heavily contaminated when compared to new HAs. Among the different sites, the screw thread and screwdriver engagement sites were more prone to contamination. HA type did not influence the frequency of contamination.
摘要：
目的：确定和比较用PhloxineB染料灭菌后愈合基台（HAs）不同部位的污染频率，以及灭菌后未使用和使用过的HAs。
方法：将总共60个HA分为两个测试组：（1）使用并灭菌和（2）对照组（未使用）。灭菌后评估测试组的污染；对照组不进行任何程序。使用SPSS版本22(IBM)分析数据。描述性统计用于确定不同组和不同HA位点的污染频率。卡方检验用于评估污染频率与HA位点和设计的关联。显著性水平保持在P≤0.01。
结果：与对照组相比，测试组显示出更多的污染。受污染最严重的部位是螺纹和螺丝刀接合位置。
结论：HA重用具有成本效益，但是清洁和灭菌对这些组件无效；因此，HAs需要谨慎重复使用，因为与新的HAs相比，它们受到了严重污染。在不同的网站中，螺纹和螺丝刀啮合部位更容易受到污染。HA类型不影响污染的频率。
方法：将总共60个HA分为两个测试组：（1）使用并灭菌和（2）对照组（未使用）。灭菌后评估测试组的污染；对照组不进行任何程序。使用SPSS版本22(IBM)分析数据。描述性统计用于确定不同组和不同HA位点的污染频率。卡方检验用于评估污染频率与HA位点和设计的关联。显著性水平保持在P≤0.01。
结果：与对照组相比，测试组显示出更多的污染。受污染最严重的部位是螺纹和螺丝刀接合位置。
结论：HA重用具有成本效益，但是清洁和灭菌对这些组件无效；因此，HAs需要谨慎重复使用，因为与新的HAs相比，它们受到了严重污染。在不同的网站中，螺纹和螺丝刀啮合部位更容易受到污染。HA类型不影响污染的频率。
