Abstract
BackgroundThis study aimed to assess the efficacy of titanium brush, 915 nm diode laser, citric acid and the combination of latter two with titanium brush for decontamination of SLA surface mini-implants.MethodsSeventy-five mini-implants contaminated with Staphylococcus aureus (S. aureus) were randomly divided into five experimental groups (n = 12) of titanium brush (TiB), laser, citric acid (CA), brush-laser, and brush-acid, positive [n = 12; chlorhexidine mouthwash (CHX)] and negative [n = 2; phosphate buffered saline (PBS)] control groups and one no-treatment group (n = 1). After counting the colony forming units (CFUs), data were analyzed using the Kruskal–Wallis and Dunn post-hoc tests.ResultsRegardless of the no-treatment and negative control groups, maximum and minimum CFUs were noted in the titanium brush and positive control groups. After CHX, minimum CFUs were noted in brush-acid group followed by brush-laser, laser, and acid groups. Generally, the Kruskal–Wallis test revealed a significant difference between the groups regarding the colony count (P < 0.001). Dunn post-hoc test showed that the difference between the titanium brush and acid-brush group was significant (P < 0.001) while the differences between the brush and laser groups with the brush-laser group were not significant (P > 0.077).ConclusionsCombined use of titanium brush and citric acid yielded superior results compared to other groups in reduction of S. aureus on implant surface.
Highlights
This study aimed to assess the efficacy of titanium brush, 915 nm diode laser, citric acid and the combination of latter two with titanium brush for decontamination of SLA surface mini-implants
The Dunn post-hoc test was applied for pairwise comparisons of the groups, which revealed significant differences between the chlorhexidine mouthwash (CHX) group and each of the titanium brush, citric acid, laser, and brush-laser groups (P ≤ 0.007)
A significant difference was noted between the titanium brush and brush-acid groups (P < 0.001)
Summary
This study aimed to assess the efficacy of titanium brush, 915 nm diode laser, citric acid and the combination of latter two with titanium brush for decontamination of SLA surface mini-implants. Complete elimination of bacterial biofilm from the rough implant surface is not predictably feasible [9,10,11]. These instruments can damage the implant surface and impair osteoblast adhesion and reosseointegration to implant [12]. More favorable results can be obtained by the combination use of titanium brush and chemical agents [14]. Some studies have mentioned its irritability and toxicity for periodontal tissues when used in high concentrations [15, 16]
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