Restaurações adesivas em dentes pós-clareados: efeito do ascorbato de sódio na remoção do O2
Abstract
Este trabalho procurou avaliar o efeito do ascorbato de sódio na aceleração da liberação do oxigênio residual em esmalte e dentina de dentes pós-clareados através de testes de infiltração marginal em restaurações de resina composta microhíbrida com tecnologia adesiva convencional e auto-condicionante. Para o experimento foram realizadas cavidades estritamente proximais em 40 terceiros molares hígidos extraídos de humanos. Os dentes foram distribuídos em 08 grupos: 1A (controle) – sem clareamento, restaurados com o sistema adesivo Stae SDI® e a resina composta Glacier SDI®; 1B – clareados e restaurados imediatamente com o sistema adesivo Stae SDI® e a resina composta Glacier SDI®; 1C – clareados, tratados imediatamente com o ascorbato de sódio a 10% e restaurados com o sistema adesivo Stae SDI® e a resina composta Glacier SDI®; 1D – clareados e restaurados após 15 dias com o sistema adesivo Stae SDI® e a resina composta Glacier SDI®; 2A (controle) – sem clareamento, restaurados com o sistema adesivo Prompt L-pop 3M/ESPE® e a resina composta Filtek Z250 3M/ESPE®; 2B – clareados e restaurados imediatamente com o sistema adesivo Prompt L-pop 3M/ESPE®; 2C – clareados, tratados imediatamente com ascorbato de sódio a 10% e restaurados com o sistema adesivo Prompt L-pop 3M/ESPE®; 2D – clareados e restaurados após 15 dias com o sistema adesivo Prompt L-pop 3M/ESPE®. Os resultados, submetidos a analise estatística através do teste de Kruskal-Wallis, revelaram que o ascorbato de sódio possibilita a aceleração da remoção do oxigênio residual da dentina e do esmalte em dentes pós-clareados melhorando o selamento marginal das restaurações.
UNITERMOS: clareamento de dente; adesivos dentinários; infiltração dentária.
SUMMARY
This work aimed to access the effect of sodium ascorbate in the acceleration of residual oxygen liberation in enamel and dentine of post-bleached teeth by accessing the microleakage scores of microhybrid composite restorations with conventional adhesive technology and self-conditioning technology. To the experiment were made strictly proximal cavities in 40 hygid third molars extracted from human beings. The teeth were classified in 8 groups: 1A (control) – no bleaching, restored with adhesive system Stae SDI® and composite resin Glacier SDI®; 1B – bleached and immediately restored with 0adhesive system Stae SDI® and composite resin Glacier SDI®; 1C – bleached, immediately treated with sodium ascorbate 10% and restored with adhesive system Stae SDI® and composite resin Glacier SDI®; 1D – bleached and restored after 15 days with the adhesive system Stae SDI® and composite resin Glacier SDI®; 2A (control) – no bleaching, restored with adhesive system Prompt L-pop 3M/ESPE® and composite resin Filtek Z250 3M/ESPE®; 2B – bleached and immediately restored with adhesive system Prompt L-pop 3M/ESPE® and composite resin Filtek Z250 3M/ESPE®; 2C – bleached, immediately treated with sodium ascorbate 10% and restored with adhesive system Prompt L-pop 3M/ESPE® and composite resin Filtek Z250 3M/ESPE®; 2D – bleached and restored after 15 days with the adhesive system Prompt L-pop 3M/ESPE®. The results, submitted to statistics analysis by Kruskal-Wallis test, shown that sodium ascorbate is able to accelerate the removal of residual oxygen of the dentine and enamel in post-bleached teeth, improving the sealing of restorations.
UNITERMS: dental bleaching; dentin bonding agents; dental leakage.
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