Microshear bond strength according to dentin cleansing methods before recementation
The Journal of Advanced Prosthodontics
;
: 79-87, 2014.
Artículo
en Inglés
| WPRIM
| ID: wpr-55985
ABSTRACT
PURPOSE:
The aim of this study was to determine the efficiency of Erbium, Chromium Yttrium-Scandium-Gallium-Garnet laser in different output powers for removing permanent resin cement residues and therefore its influence on microshear bond strength compared to other cleaning methods. MATERIALS ANDMETHODS:
90 extracted human molars were sectioned in 1 mm thickness. Resin cement was applied to surface of sliced teeth. After the removal of initial cement, 6 test groups were prepared by various dentin surface treatment methods as follows no treatment (Group 1), ethylene diamine tetra acetic acid application (Group 2), Endosolv R application (Group 3), 1.25 W Erbium, ChromiumYttrium-Scandium-Gallium-Garnet laser irradiation (Group 4), 2 W Erbium, ChromiumYttrium-Scandium-Gallium-Garnet laser irradiation (Group 5) and 3.5 W Erbium, ChromiumYttrium-Scandium-Gallium-Garnet laser irradiation (Group 6). The topography and morphology of the treated dentin surfaces were investigated by scanning electron microscopy (n=2 for each group). Following the repetitive cementation, microshear bond strength between dentin and cement (n=26 in per group) were measured with universal testing machine and the data were analyzed by Kruskal Wallis H Test with Bonferroni correction (P<.05). Fracture patterns were investigated by light microscope.RESULTS:
Mean microshear bond strength +/- SD (MPa) for each group was 34.9 +/- 17.7, 32.1 +/- 15.8, 37.8 +/- 19.3, 31.3 +/- 12.7, 44.4 +/- 13.6, 40.2 +/- 13.2 respectively. Group 5 showed significantly difference from Group 1, Group 2 and Group 4. Also, Group 6 was found statistically different from Group 4.CONCLUSION:
2 W and 3.5 W Erbium, Chromium Yttrium-Scandium-Gallium-Garnet laser application were found efficient in removing resin residues.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Diente
/
Microscopía Electrónica de Rastreo
/
Cromo
/
Cementación
/
Ácido Acético
/
Cementos de Resina
/
Dentina
/
Erbio
/
Characidae
/
Diente Molar
Límite:
Humanos
Idioma:
Inglés
Revista:
The Journal of Advanced Prosthodontics
Año:
2014
Tipo del documento:
Artículo
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