Effect of argon plasma and Er:YAG laser on tensile bond strength between denture liner and acrylic resin.
J Prosthet Dent
; 124(6): 799.e1-799.e5, 2020 Dec.
Article
em En
| MEDLINE
| ID: mdl-33039186
ABSTRACT
STATEMENT OF PROBLEM:
The separation of a denture liner from the denture base can be a clinical problem. Different surface treatments to increase the bond have been evaluated, but studies comparing the effect of argon plasma and erbium-doped yttrium aluminum garnet (ErYAG) laser on the bond between acrylic resin and a denture liner are lacking.PURPOSE:
The purpose of this in vitro study was to evaluate the effect of argon plasma and ErYAG laser treatments on the bond strengths of acrylic resin to 2 denture liners. MATERIALS ANDMETHODS:
Heat-polymerized acrylic resin (Acron Duo) was bonded to silicone soft-liner materials (Molloplast B, n=30; Mollosil, n=30) to create control specimens (n=10), argon plasma treatment (n=10), and ErYAG laser treatment (n=10). Silicone liners were polymerized on resin specimens. The tensile bond strength test was performed with a crosshead speed of 10 mm/min with a 10-N load until failure. Data were analyzed by using the Kruskal-Wallis test and unpaired t test (α=.05).RESULTS:
The laser group showed significantly higher bond strength than the argon plasma group for both Molloplast-B (P=.001) and Mollosil (P<.001). The highest tensile bond strength values were determined in the laser-treated Molloplast-B group (1.325 ±0.119 MPa) while the lowest bond strength values were determined in the Mollosil control group (0.384 ±0.018 MPa).CONCLUSIONS:
Argon plasma and ErYAG laser applications increases the tensile bond strength between soft-liner material and resin. ErYAG laser treatment results in higher bond strength values than treatment with argon plasma for 1 minute.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Colagem Dentária
/
Reembasadores de Dentadura
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Lasers de Estado Sólido
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Gases em Plasma
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article