Cristian Bersezio1,2, Paulina Ledezma3, Carla Mayer1, Oriana Rivera1, Osmir Batista Oliveira Junior4, Eduardo Fernández5,6. 1. Department of Restorative Dentistry, Faculty of Dentistry, University of Chile, Sergio Livingstone Pohlhammer 943, Independencia, Santiago, Chile. 2. Universidad Andres Bello, Sergio Livingstone Pohlhammer 943, Independencia, Santiago, Chile. 3. Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Sergio Livingstone Pohlhammer 943, Independencia, Santiago, Chile. 4. University Estadual Paulista-Unesp., School of Dentistry, Rua Humaitá, 1680-Centro-CEP: 14801-903, Araraquara, Brazil. 5. Department of Restorative Dentistry, Faculty of Dentistry, University of Chile, Sergio Livingstone Pohlhammer 943, Independencia, Santiago, Chile. edofdez@yahoo.com. 6. Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Providencia, Chile. edofdez@yahoo.com.
Abstract
OBJECTIVES: The aim of this study was to evaluate the esthetic perception of patients at 6 months after bleaching of non-vital teeth with 35% ofhydrogen peroxide and 37% of carbamide peroxide using a walking bleach technique. We also assessed psychosocial impacts as well as the clinical effectiveness and stability of the color change. MATERIALS AND METHODS: The teeth bleaching treatment was randomly assigned to two groups according to the bleaching agent used: G1 HP = 35% of hydrogen peroxide (n = 25) and G2 CP = 37% of carbamide peroxide (n = 25). The non-vital bleaching was performed in four sessions using the walking bleach technique. The color was objectively (ΔE) and subjectively (ΔSGU) evaluated. The esthetic perception and psychosocial factors were evaluated before treatment as well as one and 6 months post-treatment using Oral Health Impact Profile (OHIP) esthetics and Psychosocial Impact of Dental Esthetics Questionnaire (PIDAQ). RESULTS: The color change (ΔE) at 6 months (G1 = 14.53 ± 5.07 and G2 = 14.09 ± 6.61) for both color groups remained stable until the 6-month post-treatment (p > 0.05). There was a decrease in the values of OHIP esthetics and PIDAQ after treatment compared to the baseline (p < 0.05), and this effect was maintained 6 months post-treatment. CONCLUSIONS: Both agents were highly effective and maintained the color stability at 6 months; this positively affected the esthetic perception and psychosocial impact of patients who also remained stable over time. CLINICAL RELEVANCE: Non-vital bleaching produces a positive and stable impact on the esthetic perception and psychosocial factors at medium-term follow-ups.
RCT Entities:
OBJECTIVES: The aim of this study was to evaluate the esthetic perception of patients at 6 months after bleaching of non-vital teeth with 35% of hydrogen peroxide and 37% of carbamide peroxide using a walking bleach technique. We also assessed psychosocial impacts as well as the clinical effectiveness and stability of the color change. MATERIALS AND METHODS: The teeth bleaching treatment was randomly assigned to two groups according to the bleaching agent used: G1 HP = 35% of hydrogen peroxide (n = 25) and G2 CP = 37% of carbamide peroxide (n = 25). The non-vital bleaching was performed in four sessions using the walking bleach technique. The color was objectively (ΔE) and subjectively (ΔSGU) evaluated. The esthetic perception and psychosocial factors were evaluated before treatment as well as one and 6 months post-treatment using Oral Health Impact Profile (OHIP) esthetics and Psychosocial Impact of Dental Esthetics Questionnaire (PIDAQ). RESULTS: The color change (ΔE) at 6 months (G1 = 14.53 ± 5.07 and G2 = 14.09 ± 6.61) for both color groups remained stable until the 6-month post-treatment (p > 0.05). There was a decrease in the values of OHIP esthetics and PIDAQ after treatment compared to the baseline (p < 0.05), and this effect was maintained 6 months post-treatment. CONCLUSIONS: Both agents were highly effective and maintained the color stability at 6 months; this positively affected the esthetic perception and psychosocial impact of patients who also remained stable over time. CLINICAL RELEVANCE: Non-vital bleaching produces a positive and stable impact on the esthetic perception and psychosocial factors at medium-term follow-ups.
Authors: J Martín; P Vildósola; C Bersezio; A Herrera; J Bortolatto; J R C Saad; O B Oliveira; E Fernández Journal: J Dent Date: 2015-06-06 Impact factor: 4.379
Authors: E Fernández; C Bersezio; J Bottner; F Avalos; I Godoy; D Inda; P Vildósola; Jrc Saad; O B Oliveira; J Martín Journal: Oper Dent Date: 2016-08-29 Impact factor: 2.440