Kapferer Ines, Beier Ulrike S, Jank Siegfried, Persson Rutger
Department of Restorative and Operative Dentistry, Innsbruck Medical University, Innsbruck, Austria.
Pediatr Dent. 2013 Jan-Feb;35(1):E23-8.
The purpose of this study was to investigate whether there are microbiological differences in bacterial samples collected from labial piercings made of different materials.
Sterile piercings of 4 materials were randomly allocated to 80 pierced subjects. After 2 weeks, microbiologic samples were collected and processed by checkerboard DNA-DNA hybridization methods. Wilcoxon signed ranks and Mann-Whitney tests were used for statistical analysis (adjustment for multiple comparisons).
There were no statistically significant differences between material groups in relation to baseline data. In samples from stainless steel piercings, the total microbial load was significantly higher than the other materials (P<.05). Ten (mainly periopathogenic) species were found at significantly higher levels (P<.001) on steel than on polypropylene and/or polytetrafluoroethylene piercings.
Labial piercings made of stainless steel could promote the development of a pathogenic biofilm.
本研究旨在调查从不同材料制成的唇部穿孔采集的细菌样本在微生物学上是否存在差异。
将4种材料的无菌穿孔随机分配给80名穿孔受试者。2周后，采集微生物样本并通过棋盘式DNA-DNA杂交方法进行处理。采用Wilcoxon符号秩检验和Mann-Whitney检验进行统计分析（针对多重比较进行调整）。
材料组之间在基线数据方面无统计学显著差异。在不锈钢穿孔的样本中，总微生物负荷显著高于其他材料（P<.05）。在钢质穿孔上发现有10种（主要是牙周致病菌）的水平显著高于聚丙烯和/或聚四氟乙烯穿孔（P<.001）。
由不锈钢制成的唇部穿孔可能会促进致病性生物膜的形成。
