Effect of self-curing activators and curing protocols on adhesive properties of universal adhesives bonded to dual-cured composites.
Dent Mater
; 33(7): 775-787, 2017 07.
Article
em En
| MEDLINE
| ID: mdl-28487037
ABSTRACT
OBJECTIVES:
To measure microshear bond strength (µSBS) and nanoleakage (NL) of self-etch universal adhesives under core buildup restorations using different curing protocols, at 24h and after 6-month water storage.METHODS:
Middle dentin of 55 molars was divided into Clearfil Universal Bond [CFU], Prime&Bond Elect [PBE], and One Coat 7 Universal [OCU]. All-Bond Universal [ABU] and Clearfil SE Bond [CSE] were used as control. CFU, PBE and OCU were light-cured [LC], dual-cured [DC] and self-cured [SC]. Data were analyzed separately (two-way ANOVA), Tukey's test (α=0.05).RESULTS:
µSBS At 24h OCU/LC resulted in statistically higher µSBS than ABU. CSE/DC showed statistically higher µSBS than all DC adhesives. PBE/LC resulted in significant lower µSBS than the respective DC/SC modes (p<0.001). At 6-month, both CFU and PBE (LC/SC), resulted in a significant decrease in µSBS. µSBS for OCU/DC decreased significantly (p<0.001) compared to the respective LC/SC modes. NL At 24h, ABU showed %NL similar to CBU/LC and OCU/LC (p>0.05). CSE/DC resulted in significantly higher %NL than OCU/DC but significantly lower than PBE/DC. CFU/LC/SC resulted in significantly lower %NL than CFU/DC. PBE/SC resulted in significant lower %NL than PBE/LC and PBE/DC. OCU/LC and OCU/DC resulted in significant lower %NL than OCU/SC (p<0.001). At 6-month ABU, CSE, CFU/LC and CFU/SC, resulted in a significant increase in %NL.SIGNIFICANCE:
Self-cured activator and different curing protocols influenced µSBS and NL of self-etch universal adhesives, but this influence was material-dependent.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Cimentos de Resina
/
Cimentos Dentários
/
Dentina
Limite:
Humans
Idioma:
En
Revista:
Dent Mater
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Chile