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Effect of Er:YAG lasing on the dentin bonding strength of two-step adhesives / 대한치과보존학회지
Journal of Korean Academy of Conservative Dentistry ; : 409-418, 2011.
Artigo em Coreano | WPRIM | ID: wpr-208278
ABSTRACT

OBJECTIVES:

The purpose of this study was to compare the microshear bond strength (microSBS) and bonding interfaces of two-step total-etching and self-etching adhesive systems to three etch types of dentin either the acid etched, laser etched or laser and acid etched. MATERIALS AND

METHODS:

The occlusal dentinal surfaces of thirty human molars were used. They were divided into six groups group 1, 37% H3PO4 + Single Bond 2 (3M ESPE); group 2, ErYAG laser (KEY Laser 3, KaVo) + Single Bond 2; group 3, ErYAG laser + 37% H3PO4 + Single Bond 2; group 4, Clearfil SE Primer + Bond (Kuraray); group 5, ErYAG laser + Clearfil SE Bond; group 6, ErYAG laser + Clearfil SE Primer + Bond. The samples were subjected to microSBS testing 24 hr after bonding. Also scanning microscopic evaluations were made on the resin-dentin interfaces of six specimens.

RESULTS:

The microSBS of group 2 was significantly lower than that of groups 1 and 3 in Single Bond 2 (p < 0.05). There were significant differences among the uSBS of groups 4, 5, and 6 in Clearfil SE Bond (p < 0.05). Very short and slender resin tags were observed in groups 2 and 5. Long and slender resin tags and lateral branches of tags were observed in groups 3 and 6.

CONCLUSIONS:

Treatment of dentin surface using phosphoric acid or self-etching primer improved the adhesion of ErYAG lased dentin.
Assuntos

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Ácidos Fosfóricos / Adesivos / Bis-Fenol A-Glicidil Metacrilato / Cimentos de Resina / Dentina / Dente Molar Limite: Humanos Idioma: Coreano Revista: Journal of Korean Academy of Conservative Dentistry Ano de publicação: 2011 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Ácidos Fosfóricos / Adesivos / Bis-Fenol A-Glicidil Metacrilato / Cimentos de Resina / Dentina / Dente Molar Limite: Humanos Idioma: Coreano Revista: Journal of Korean Academy of Conservative Dentistry Ano de publicação: 2011 Tipo de documento: Artigo