The influence of different mode of power density during antimicrobial photodynamic therapy for photokilling of Streptococcus mutans

被引：2
作者：
Afrasiabi, Shima [1 ]
Entezari, Sarvin [2 ]
Etemadi, Ardavan [3 ]
Chiniforush, Nasim [1 ]
机构：
[1] Univ Tehran Med Sci, Dent Res Inst, Laser Res Ctr Dent, Tehran, Iran
[2] Islamic Azad Univ, Fac Dent, Tehran Med Sci, Tehran, Iran
[3] Univ Tehran Med Sci, Islamic Azad Univ, Laser Res Ctr Dent, Tehran Med Sci,Dept Periodont,Fac Dent, Tehran, Iran
来源：
PHOTODIAGNOSIS AND PHOTODYNAMIC THERAPY | 2023年 / 44卷
关键词：
Antimicrobial photodynamic therapy; Blue diode laser; Dental caries; Curcumin; Riboflavin; Streptococcus mutans; Power density; DENTAL-CARIES; RIBOFLAVIN; DISEASES;
D O I：
10.1016/j.pdpdt.2023.103770
中图分类号：
R73 [肿瘤学];
学科分类号：
100214 ;
摘要：
Background: The aim of this study was to evaluate the inactivation potency of riboflavin and curcumin plus blue diode laser against Streptococcus mutans with different power densities.Materials and methods: In this in vitro study, standard-strain S. mutans was exposed to curcumin and riboflavin plus blue diode laser with different power densities (0.4-1.0 W/cm(2)) as well as chlorhexidine (CHX). The colony forming units (CFUs)/mL was calculated. Data were analyzed by one-way ANOVA.Results: Antibacterial analysis indicated that the blue diode laser irradiation with curcumin and riboflavin provided a satisfactory reduction of the S. mutans level. In addition, S. mutans was more affected by curcumin + blue diode laser when the power density was set to 1.0 W/cm2 (P < 0.0001). Meanwhile, bacterial suspensions treated with CHX showed maximum colony number reduction, compared with the control (P < 0.0001).Conclusion: This study showed the blue diode laser along with curcumin had strong bactericidal effect on S. mutans, and this effect improved by increasing the power density.
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页数：4
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