Técnica de clareamento dental combinada e seu impacto na auto-percepção estética e nos fatores psicossociais: ensaio clínico

Abstract

Dental bleaching is a procedure to improve the aesthetics of the patient's smile. This study aimed to evaluate the effectiveness and impact on esthetic self-perception and psychosocial factors of combined dental bleaching technique on different patient’s age groups. This clinical triple-blind trial, parallel with two groups, was conducted with 56 healthy subjects. All patients received the same combined bleaching treatment (38% hydrogen peroxide for the in-office and at home 20% carbamide peroxide phases). The risk tooth sensitivity, color change using visual guides and oral health-related quality of life (OHRQoL) attributed to dental esthetics, using the Orofacial Esthetic Scale (OES) and the Psychosocial Impact of Dental Aesthetics Questionnaire (PIDAQ). As a result, in-office bleaching caused greatest sensitivity and was more effectiveness to color change in younger subjects. After combined technique, both patients have similar color change and risk to tooth sensitivity regardless age. Both age groups had more satisfaction level after combined bleaching treatment and younger patient had more satisfaction than older (P<0.001). Young subjects felt happier with the whitening procedure than older (P<0.001). After combined dental bleaching technique OHRQoL was improved for both age’s group. Regarding the PIDAQ scores, tooth whitening had a significant influence on “Esthetic Concern” (P<0.003) to older subjects and “Esthetic Concern” (P<0.001) and “Psychological Impact” (P<0.001) to young subjects. There were improving on OES scores to both age groups (P<0.001). Therefore, the combined bleaching technique was able to positively influences color change, patients' perception about own smile aesthetics and consequently the quality of life for younger and older patients but overall, young patients in spite of related greater sensitivity in-office phase felt happier with the whitening procedure than older patients.