Influência do clareamento dental na cor, translucidez e fluorescência do esmalte e dentina
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Data
2011-06-22
Autores
Caneppele, Taciana Marco Ferraz [UNESP]
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Universidade Estadual Paulista (Unesp)
Resumo
Objetivo:O objetivo deste estudo foi avaliar a cor, translucidez e fluorescência do esmalte e dentina bovinos submetidos a diferentes técnicas de clareamento. Material e Método: Foram utilizados 150 dentes bovinos, dos quais foram obtidos pares de discos de esmalte e dentina com 3mm de diâmetro. Em 75 pares, 1 dos espécimes teve o esmalte removido, sendo denominado Grupo Dentina. Os espécimes de dentina e esmalte obtidos do restante dos pares foram denominados Grupo Esmalte+dentina. E finalmente, 75 espécimes tiveram a dentina removida e foram denominados Grupo Esmalte. A medição da cor, translucidez e fluorescência foi realizada por um espectrofotômetro usando o CIE L * a * b*. Cada grupo foi subdividido em 3 subgrupos: Controle, composto por espécimes que não foram clareados e 2 sugrupos experimentais, clareados com Peróxido de Carbamida 10% (PC10%) ou Peróxido de hidrogênio a 35% (PH 35%). O gel clareador foi aplicado 2h/dia sobre os espécimes para o clareamento com PC10% durante 14 dias e duas aplicações de 30 min com intervalo de uma semana entre as aplicações no clareamento com PH35%. Nos períodos intermediários, os espécimes foram imersos em saliva artificial. As avaliações de cor foram realizadas 7 dias após o término do tratamento. Resultados: Em relação a cor, foram encontradas diferenças significativas entre as técnicas de clareamento nos grupos Esmalte e Esmalte + Dentina, com maior diferença de cor para o PH 35%. O clareamento não alterou a translucidez dos tecidos dentais e a fluorescência diminuiu, apresentando diferenças significantes para o Grupo Dentina, subgrupo PH 35%, Grupo Esmalte, subgrupo PC10% e Grupo Esmalte+dentina, subgrupo PH35%. Conclusão: O clareamento dental alterou a cor e a fluorescência dos tecidos dentais, porém a translucidez não foi afetada
Objective: The objective of this study was to evaluate the color, translucency and fluorescence of bovine enamel and dentin submitted to different bleaching modalities. Methods: A total of 150 bovine teeth were used, which were obtained pairs of enamel and dentin discs 3mm in diameter. In 75 pairs, one of the specimens had the enamel removed (Group Dentin). Specimens of dentin and enamel obtained from the remaining pair were named Group Enamel+dentin. And finally, 75 specimens were removed from the dentin and enamel were named Group Enamel. The measurement of color, translucency and fluorescence was performed by a spectrophotometer using the CIE L * a * b. Each group was subdivided into three subgroups: Control, composed of specimens that were not bleached and two experimental subgroups, bleached with carbamide peroxide 10% (CP10%) or hydrogen peroxide 35% (HP 35%). The whitening gel was applied on specimens for 2h/day bleaching with CP10% for 14 days and two applications of 30 minutes with one week interval between applications in bleaching with HP35%. In interim periods, the specimens were immersed in artificial saliva. The color ratings were performed 7 days after the treatment. Results: Regarding the color, significant differences were found among bleaching techniques in the groups enamel and dentin + enamel, with a higher color difference for the 35% HP. Bleaching did not change the translucency of the dental tissues and the fluorescence showed significant differences for the 35% HP subgroups in Dentin and Enamel+dentin group, and for 10%CP subgroups in Enamel group. Conclusion: The dental bleaching changed the color and fluorescence of the dental tissues, however translucency was not affected
Objective: The objective of this study was to evaluate the color, translucency and fluorescence of bovine enamel and dentin submitted to different bleaching modalities. Methods: A total of 150 bovine teeth were used, which were obtained pairs of enamel and dentin discs 3mm in diameter. In 75 pairs, one of the specimens had the enamel removed (Group Dentin). Specimens of dentin and enamel obtained from the remaining pair were named Group Enamel+dentin. And finally, 75 specimens were removed from the dentin and enamel were named Group Enamel. The measurement of color, translucency and fluorescence was performed by a spectrophotometer using the CIE L * a * b. Each group was subdivided into three subgroups: Control, composed of specimens that were not bleached and two experimental subgroups, bleached with carbamide peroxide 10% (CP10%) or hydrogen peroxide 35% (HP 35%). The whitening gel was applied on specimens for 2h/day bleaching with CP10% for 14 days and two applications of 30 minutes with one week interval between applications in bleaching with HP35%. In interim periods, the specimens were immersed in artificial saliva. The color ratings were performed 7 days after the treatment. Results: Regarding the color, significant differences were found among bleaching techniques in the groups enamel and dentin + enamel, with a higher color difference for the 35% HP. Bleaching did not change the translucency of the dental tissues and the fluorescence showed significant differences for the 35% HP subgroups in Dentin and Enamel+dentin group, and for 10%CP subgroups in Enamel group. Conclusion: The dental bleaching changed the color and fluorescence of the dental tissues, however translucency was not affected
Descrição
Palavras-chave
Esmalte dentário, Fluorescencia, Espectrofotometria, Clareamento dental, Dental bleaching, Flourescence, Spectrophotometry, Dental enamel
Como citar
CANEPPELE, Taciana Marco Ferraz. Influência do clareamento dental na cor, translucidez e fluorescência do esmalte e dentina. 2011. 107 f. Tese (doutorado) - Universidade Estadual Paulista, Faculdade de Odontologia de São José dos Campos, 2011.