Altered physical-chemical properties of home bleaching gels after an accelerated stability study and their effects on tooth enamel

Autor: Danielle Ferreira Sobral-Souza, Thayla Hellen Nunes Gouveia, Mariangela Ivette Guanipa Ortiz, André Luís Condeles, José Carlos Toledo Junior, Michelle Franz-Montan, Flávio Henrique Baggio Aguiar, Débora Alves Nunes Leite Lima
Rok vydání: 2022
Předmět:
Zdroj: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
ISSN: 1436-3771
Popis: To investigate the physical-chemical properties of home bleaching gels based on Carbamide Peroxide (CP) and Hydrogen Peroxide (HP) after accelerated stability (AS) and its effects on enamel.A total of 360 bovine teeth blocks were divided (n = 12): Control, CP10%-Whiteness Perfect, CP10%-Pola Night, HP7.5%-Pola Day, and HP7.5%-White Class Calcium. Microhardness (KHN), roughness (Ra), color (ΔE and ΔEGroups subject to AS had lower ΔE and ΔEIncorrectly stored bleaching gel accentuates adverse effects on enamel. Temperature and humidity interfere directly with the chemical stability of bleaching agents, reducing their properties.HP is an unstable oxidizing agent when stored at high temperatures. Therefore, pH becomes more acidic and potentiates the demineralizing effect on enamel.
Databáze: OpenAIRE
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