Effect of bleaching agents on enamel surface of bovine teeth: a sem study
Carregando...
Data
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Federal de Minas Gerais
Descrição
Tipo
Artigo de periódico
Título alternativo
Primeiro orientador
Membros da banca
Resumo
Background: This study aimed to evaluate changes in the enamel surface of bovine teeth after whitening with exo genous bleaching agents: 10% carbamide peroxide (group 1), 16% carbamide peroxide (group 2) and 35% hydro gen peroxide activated by a light-emitting diode (LED) (group 3). The evaluations were performed by scanning
electron microscopy (SEM).
Material and Methods: Ninety bovine teeth were divided into five groups (n = 18). The bleaching agents 10% and
16% carbamide peroxide were applied for eight hours a day for 14 consecutive days. The third agent, LED-activa ted 35% hydrogen peroxide, was used four times at seven-day intervals. Each of the four time points consisted of
three applications of 10 minutes each. A 37% phosphoric acid solution and artificial saliva were used as positive
and negative controls, respectively.
Results: The evaluations by SEM showed changes in the enamel surfaces of the specimens. Based on the Mann Whitney statistical test, the data showed significant differences (p<0.05) between groups 1 and 2 and between
groups 2 and 3. However, no significant difference (p>0.05) was observed between groups 1 and 3.
Conclusions: Based on these results, it can be concluded that bleaching agents can cause changes in the structure
of tooth enamel and that these changes are related to the concentration and the duration of contact with the tooth
surface
Abstract
Assunto
Dental enamel, Tooth bleaching, Carbamide peroxide, Hydrogen peroxide
Palavras-chave
Citação
Departamento
Curso
Endereço externo
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5268116/