Revista de Odontologia da UNESP
https://revodontolunesp.com.br/article/doi/10.1590/1807-2577.02320
Revista de Odontologia da UNESP
Original Article

Evaluation of the effect of tooth polishing on color stability after in-office bleaching treatment

Avaliação do efeito do polimento dental na estabilidade de cor após tratamento clareador em consultório

Luís Felipe ESPÍNDOLA-CASTRO; Pamella Robertha Rosselinne Paixão CELERINO; Tácyla Alves do NASCIMENTO; Gabriela Queiroz de Melo MONTEIRO; Tereza Cristina CORREIA

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Abstract

Abstract: Introduction: One of the most commonly used corrective methods for staining teeth is tooth bleaching. However, subclinical alterations may occur in the micromorphology of dental tissues during the bleaching procedure, such as increases in porosity and surface roughness. Consequently, dental enamel may become more permeable and susceptible to staining.

Objective: To evaluate the influence of tooth polishing after in-office bleaching treatment on color stability.

Material and method: Thirty-three extracted human molars were used. The teeth were cut in the mesiodistal direction to obtain two samples per tooth (total of 66). The samples were randomly divided into six groups (n=11). Before and after the bleaching treatment, the lightness of the samples and change in lightness (∆L) were determined with a digital spectrophotometer (Easy Shade). The samples were bleached with 35% hydrogen peroxide (three sessions weekly). Three groups were submitted to polishing with felt discs and polishing paste after each session. To simulate the oral conditions during the consumption of colored beverages, the samples were submitted to alternating cycles of immersion in staining solutions (coffee, red wine, and Coca Cola).

Result: Polishing resulted in an increase of mean lightness of 4.49 in the red wine group, 2.73 in the coffee group, and 4.08 in the cola group. The difference was significant in the red wine group (p<0.022), but not in the coffee or cola group.

Conclusion: Polishing after in-office bleaching using felt discs and polishing paste can reduce the degree of pigment impregnation in patient with red wine rich diet.

Keywords

Dental polishing, esthetics, tooth bleaching

Resumo

Resumo: Introdução: Um dos métodos mais usados ​​para dentes pigmentados é o clareamento dental. Entretanto, alterações subclínicas podem ocorrer na micromorfologia dos dentes durante procedimentos de clareamento, como aumentos na porosidade e rugosidade superficial. Consequentemente, o esmalte dental pode se tornar mais permeável e suscetível a manchas.

Objetivo: Avaliar a influência do polimento dentário após o clareamento em consultório na estabilidade da cor.

Material e método: Trinta e três molares humanos extraídos foram utilizados. Os dentes foram cortados na direção mesiodistal para obter duas amostras por dente (total de 66). As amostras foram divididas aleatoriamente em seis grupos (n = 11). Antes e após o tratamento clareador, a luminosidade das amostras e a alteração da luminosidade (∆L) foram determinadas com um espectrofotômetro digital (Easy Shade). As amostras foram clareadas com peróxido de hidrogênio 35% (três sessões com intervalos de 7 dias). Três grupos foram submetidos a polimento com discos de feltro e pasta de polimento após cada sessão. Para simular as condições orais durante o consumo de bebidas pigmentadas, as amostras foram submetidas a ciclos alternados de imersão em soluções (café, vinho tinto e Coca Cola).

Resultado: O polimento resultou em um aumento da luminosidade média de 4,49 no grupo vinho tinto, 2,73 no grupo café e 4,08 no grupo cola. A diferença foi significativa no grupo vinho tinto (p <0,022), mas não no grupo café ou cola.

Conclusão: O polimento após clareamento em consultório usando discos de feltro e pasta polidora pode reduzir o grau de impregnação em pacientes com dieta rica em vinho tinto.
 

Palavras-chave

Polimento dentário, estética, clareamento dental

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Submitted date:
04/15/2020

Accepted date:
06/29/2020

5f16e86d0e88252a779517e2 rou Articles
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