Spectrophotometric analysis of dental bleaching after bonding and debonding of orthodontic brackets |
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| Authors: | Dikson Claudino,Weber Adad Ricci,Heitor Marquez Honó rio,Renan Vaz Machry,Luiz Felipe Valandro,Ricardo Abreu da Rosa,Jefferson Ricardo Pereira |
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| Affiliation: | 1. Postgraduate Program in Health Sciences, University of Southern Santa Catarina, José Acácio Moreira, 787, Zip Code 88704-900 Tubarão, Santa Catarina, Brazil;2. Department of Social Dentistry, School of Dentistry, São Paulo State University, Humaitá, 1680, Zip Code 14801-903 Araraquara, São Paulo, Brazil;3. Department of Orthodontics and Public Health, School of Dentistry, University of São Paulo, Alameda Doutor Octávio Pinheiro Brisolla, 975, Zip Code 17012-901 Bauru, São Paulo, Brazil;4. Postgraduate Program in Oral Science, School of Dentistry, Santa Maria Federal University, Roraima Av., 1000, Zip Code 97105-900 Santa Maria, Rio Grande do Sul, Brazil;5. Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Paulo Gama Av., 110, Zip Code 90040-060 Porto Alegre, Rio Grande do Sul, Brazil;6. Postgraduate Program in Health Sciences, University of Southern Santa Catarina, José Acácio Moreira Tubarão, 787, ZIP Code 88704-900 Santa Catarina, Brazil |
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| Abstract: | IntroductionThe aim of this study was to evaluate the bleaching effect after aging simulation in teeth submitted to bonding and debonding of orthodontic brackets.Materials and methodsFor this study, 90 human premolars were selected, and randomly divided into 6 groups: control, bleaching, and other 4 groups submitted to bleaching after bonding and debonding brackets using different methods. Color measurement of sample through the CIE L*a*b* system was performed in three moments: T1 – after brackets debonding, T2 – after staining cycling, and T3 – after bleaching. For evaluation of results among the components L*, a* and b*, the two criteria analysis of variance and the multiple comparison Tukey test (p < 0.05) were used.ResultsStatistically significant difference was observed among the groups submitted to brackets bonding and debonding through self-conditioning adhesive system and tungsten drill, also the control and bleaching groups between the moments T1 e T2.ConclusionBonding and debonding brackets methods tested in this study showed influence on the sample color change, and after the tooth bleaching process, only the group without brackets previous bonding achieved the color value presented before the staining and aging of samples in the brackets absence. |
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| Keywords: | Dental enamel Orthodontics Orthodontic brackets Spectrophotometry Teeth bleaching |
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