The in vitro effect of antimicrobial photodynamic therapy with toluidine blue and indocyanine green on microleakage of class V cavities |
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| Affiliation: | 1. Department of Operative Dentistry, School of Dentistry, Alborz University of Medical Sciences, Karaj, Iran;2. School of Dentistry, Alborz University of Medical Sciences, Karaj, Iran;3. Rajaie Cardiovascular, Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran;4. Laser Research Center of Dentistry, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran;1. Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP), School of Dentistry Araçatuba, José Bonifácio, Vila Mendonça, Araçatuba, São Paulo 1193, Brazil;2. Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil;3. Department of Basic Sciences São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil.;1. Diagnostic Sciences and Oral Biology, College of Dentistry, King Khalid University, Abha, Saudi Arabia;2. Pediatric Dentistry and Orthodontic Sciences, College of Dentistry, King Khalid University, Abha, Saudi Arabia;1. Department of Dermatology, Affiliated Hangzhou First People''s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China;2. The Fourth School of Medicine Affiliated to Zhejiang Chinese Medical University, Hangzhou 310053, China;3. Department of Ultrasound, Affiliated Hangzhou First People''s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China;4. Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310001, China;5. Department of Dermatology, International Education College of Zhejiang Chinese Medical University, Hangzhou 310053, China |
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| Abstract: | IntroductionConsidering the importance of disinfecting dentin and enamel after cavity preparation and the possible effect of disinfection methods on induction of various reactions in the tooth structure the aim of the present study was to evaluate microleakage of composite resin restoration after disinfecting the prepared dentin and enamel surface with antimicrobial photodynamic therapy (aPDT) with toluidine blue (TBO) and indocyanine green (ICG).Materials and methodsStandard class V cavities were prepared on buccal surface of 71 human premolar teeth. The samples were randomly divided into 3 groups based on disinfection method: Group 1: conventional disinfection method with Phosphoric acid 37% as the control; Group 2: aPDT with TBO and diode laser with wavelength of 635 nm; Group 3: aPDT with ICG and diode laser with wavelength of 808 nm. All the cavities were restored with composite resin (3M™ Filtek™ Z250). After thermocycling and immersing in 0.5% basic fuchsin, the samples were prepared for microleakage evaluation under a stereomicroscope. Data was analyzed with Kruskal-Wallis and Wilcoxon signed-rank tests at P < 0.05.ResultsThere were no significant differences in the microleakage of occlusal and gingival margins between the TBO and control groups (P > 0.05). Also, the microleackage of occlusal margins between groups was not significantly different (P > 0.05) but microleackage of gingival margins of ICG group was lower than two other groups in a meaningful way (P < 0.05).ConclusionPhotodynamic therapy with ICG as disinfecting agent in cavity preparations before composite resin restorations decreases the microleackage of gingival margins. |
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| Keywords: | Antimicrobial photodynamic therapy |
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