Effect of conventional and power office bleaching with diode laser and led light on enamel microhardness
Braz. j. oral sci
; 21: e226630, jan.-dez. 2022. ilus
Article
en En
| LILACS, BBO
| ID: biblio-1393209
Biblioteca responsable:
BR218.1
ABSTRACT
Aim:
The present study aimed to asses enamel microhardness after office bleaching with diode laser and LED light compared to the conventional bleaching procedure.Methods:
Thirty-nine human premolar teeth were collected and randomly divided into three groups regarding of the bleaching technique. Group 1 Snow O bleaching gel with LED light-curing unit; Group 2 Snow L bleaching gel with diode laser irradiation; and Group 3 Opalescence Boost bleaching gel with no light source in group 3. Enamel surface changes were evaluated in one tooth in each study group and one intact tooth as a reference under a scanning electron microscope (SEM). In the remaining samples (n=12), enamel microhardness was determined by Vickers microhardness test before and after bleaching. Data were analyzed with repeated-measures ANOVA to compare microhardness changes, followed by post hoc Tukey tests at the 0.05 significance level.Results:
Enamel microhardness decreased in all the groups after bleaching, with the maximum decrease in microhardness in the Snow O bleaching group with LED light, which was significantly higher than the other groups (P=0.002). The two other groups did not exhibit any significant difference in microhardness decrease (P>0.05).Conclusion:
Based on the limitations of this study, it can be concluded power bleaching with 980nm diode laser was less time-consuming compare to conventional bleaching procedure and yielded better outcomes in terms of enamel surface microhardness compared to the use of an LED light-curing unitPalabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
BBO
/
LILACS
Asunto principal:
Blanqueamiento de Dientes
/
Esmalte Dental
/
Láseres de Semiconductores
/
Luces de Curación Dental
/
Dureza
Idioma:
En
Revista:
Braz. j. oral sci
Asunto de la revista:
ODONTOLOGIA
Año:
2022
Tipo del documento:
Article
País de afiliación:
Irán
Pais de publicación:
Brasil