The bactericidal and biofilm removal effect of super reducing water on Streptococcus mutans in three types of orthodontic brackets.

IF 1.9 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE
Hajime Shiiki, Sho Goto, Hiroaki Katsuragi, Sakurako Kobayashi
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引用次数: 0

Abstract

Purpose: To investigate the bactericidal and biofilm removal effect of super reducing water (SRW) on Streptococcus mutans (S. mutans) adhered to orthodontic brackets, in vitro.

Methods: Three types of brackets were bonded to aluminum disks. After the formation of S. mutans biofilms on the surfaces, the brackets were divided into three groups (n = 44 each) based on their exposure to SRW: group 1, no treatment; group 2, treated for 5 min; and group 3, treated for 10 min. Total viable counts, adenosine triphosphate measurements, crystal violet assay, and scanning electron microscopy were used to evaluate the effect of SRW.

Results: The bacterial counts in groups 2 and 3 were significantly lower than those in group 1 (P < 0.001); however, no significant differences were observed between groups 2 and 3. Marked decreases in the number of bacterial colonies and extent of biofilm formation were observed in groups 2 and 3 compared to group 1. No significant differences in the number of bacterial colonies and amount of biofilm were observed among the three types of brackets in each group.

Conclusion: These findings indicate the bactericidal and biofilm removal effect of SRW treatment on S. mutans adhered to orthodontic brackets.

超还原水对三种正畸托槽中变形链球菌的杀菌及生物膜去除效果。
目的:观察超还原水(SRW)对附着在正畸托槽上的变形链球菌(S. mutans)的体外杀菌及生物膜去除效果。方法:将三种类型的托槽粘接在铝盘上。在支架表面形成变形链球菌生物膜后,根据支架对SRW的暴露情况将支架分为3组(n = 44): 1组,未处理;第二组,治疗5 min;第3组,处理10 min。采用总活菌计数、三磷酸腺苷测定、结晶紫测定和扫描电镜观察SRW的效果。结果:2、3组细菌计数显著低于1组(P < 0.001);然而,第2组和第3组之间无显著差异。与1组相比,2组和3组细菌菌落数量和生物膜形成程度明显减少。各组三种托架菌落数量和生物膜数量均无显著差异。结论:SRW对附着在正畸托槽上的变形链球菌具有杀菌和去除生物膜的作用。
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来源期刊
Journal of oral science
Journal of oral science DENTISTRY, ORAL SURGERY & MEDICINE-MATERIALS SCIENCE, BIOMATERIALS
CiteScore
3.80
自引率
0.00%
发文量
58
期刊介绍: Information not localized
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