Effect of different concentrations of green tea extract solutions on bonding durability of etchand- rinse adhesive system to caries affected dentin
Braz. j. oral sci
; 20: e210328, jan.-dez. 2021. ilus
Artículo
en Inglés
| BBO - Odontología, LILACS
| ID: biblio-1253738
Biblioteca responsable:
BR218.1
ABSTRACT
Aim:
The in vitro study evaluated the effect of different concentrations of green tea extract solution (GT) on the bonding durability of etch-and-rinse adhesive system to caries dentin affected (CAD).Methods:
Dentinal surfaces of human third molars were polished and submitted to a microbiological caries induction protocol for 14 days. After removal of the infected dentin layer, the samples were randomly divided into 4 groups (n= 10), according to the concentration of GT solution applied in CAD, after acid etching 0.05%; 0.2%; 2% and NT (no treatment control). After application of a etch-and-rinse adhesive system (Adper Single Bond 2, 3M ESPE), composite resin restorations were performed on the dentin. After 24 hours, the resin-dentin blocks were sectioned 1mm2 specimens, which were subjected to the microtensile test immediately or after 6 months of storage in water. Data were submitted to two-way ANOVA for randomized blocks and Tukey test (α= 5%).Results:
There was no effect of double interaction (p= 0.934). The application of 0.2% GT promoted a statistically significant increase in dentin bond strength values in comparison to the condition where GT was not used (p=0.012). There was a significant decrease of bond strength after 6 months of storage, regardless of dentin pretreatment (p = 0.007). The G test identified that there was no statistical difference regarding failure mode (p= 0.326).Conclusion:
The concentration of 0.2% improved the bond strength of an etch-and-rinse adhesive system to caries affected dentin, however, none of dentin pretreatments could prevent the decrease in bond strength over time
Texto completo:
Disponible
Colección:
Bases de datos internacionales
Base de datos:
BBO - Odontología
/
LILACS
Asunto principal:
Resistencia a la Tracción
/
Camellia sinensis
/
Caries Dental
/
Dentina
Tipo de estudio:
Ensayo clínico controlado
/
Guía de práctica clínica
Idioma:
Inglés
Revista:
Braz. j. oral sci
Asunto de la revista:
Odontología
Año:
2021
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
São Leopoldo Mandic Faculty/BR