Kaline Silva Castro1, Ana Cláudia de Araújo Ferreira2, Rosângela Marques Duarte3, Fábio Correia Sampaio3, Sônia Saeger Meireles4. 1. Federal University of Paraiba, João Pessoa, PB, Brazil. 2. Federal University of Pelotas, Pelotas, RS, Brazil. 3. Department of Operative Dentistry, Federal University of Paraiba, João Pessoa, PB, Brazil. 4. Department of Operative Dentistry, Federal University of Paraiba, João Pessoa, PB, Brazil. Electronic address: soniasaeger@hotmail.com.
Abstract
OBJECTIVES: This parallel randomized clinical trial evaluated the efficacy of two treatments for removing fluorosis stains. METHODS:Seventy individuals living in an area endemic for fluorosis, with at least four maxillary anterior teeth presenting fluorosis with a Thylstrup and Fejerskov index from 1 to 7, were randomized into two treatment groups (n=35): GI - enamel microabrasion or GII - microabrasion associated with at-home bleaching. Microabrasion was performed using 37% phosphoric acid and pumice and, at-home tooth bleaching was performed with 10% carbamide peroxide. Areas of enamel opacities were recorded by digital camera at baseline and 1-month (1M) after treatment. Two blinded examiners evaluated the reduction in the area (mm(2)) of opacity using software. Two visual analogue scales were used: one for recording tooth sensitivity and/or gingival irritation ranging from 1 (none) to 5 (severe) and the other to evaluate participant satisfaction with the treatment used ranging from 1 (no improvement) to 7 (exceptional improvement). RESULTS: 1M after treatment, both groups showed a significant reduction in the area of enamel opacity (p=0.0001) and there was no difference between groups (p=0.1). Most of the participants from both treatment groups reported no or mild tooth sensitivity and gingival irritation (p>0.05). Participants reported that they were happy with the improvement in dental appearance, however, individuals from GII reported that they were happier than those from GI (p=0.004). CONCLUSIONS: Both treatment protocols were effective in reducing fluoride stains, however, when home bleaching was associated to enamel microabrasion, patients reported a major satisfaction with dental appearance.
RCT Entities:
OBJECTIVES: This parallel randomized clinical trial evaluated the efficacy of two treatments for removing fluorosis stains. METHODS: Seventy individuals living in an area endemic for fluorosis, with at least four maxillary anterior teeth presenting fluorosis with a Thylstrup and Fejerskov index from 1 to 7, were randomized into two treatment groups (n=35): GI - enamel microabrasion or GII - microabrasion associated with at-home bleaching. Microabrasion was performed using 37% phosphoric acid and pumice and, at-home tooth bleaching was performed with 10% carbamide peroxide. Areas of enamel opacities were recorded by digital camera at baseline and 1-month (1M) after treatment. Two blinded examiners evaluated the reduction in the area (mm(2)) of opacity using software. Two visual analogue scales were used: one for recording tooth sensitivity and/or gingival irritation ranging from 1 (none) to 5 (severe) and the other to evaluate participant satisfaction with the treatment used ranging from 1 (no improvement) to 7 (exceptional improvement). RESULTS: 1M after treatment, both groups showed a significant reduction in the area of enamel opacity (p=0.0001) and there was no difference between groups (p=0.1). Most of the participants from both treatment groups reported no or mild tooth sensitivity and gingival irritation (p>0.05). Participants reported that they were happy with the improvement in dental appearance, however, individuals from GII reported that they were happier than those from GI (p=0.004). CONCLUSIONS: Both treatment protocols were effective in reducing fluoride stains, however, when home bleaching was associated to enamel microabrasion, patients reported a major satisfaction with dental appearance.
Authors: Leonardo Fernandes da Cunha; Isabela Maria Caetano; Fernando Dalitz; Carla Castiglia Gonzaga; José Mondelli Journal: Case Rep Dent Date: 2014-06-18