Evaluation of polymerization shrinkage stress in silorane-based composites / 대한치과보존학회지
Journal of Korean Academy of Conservative Dentistry
;
: 188-195, 2011.
Artigo
em Coreano
| WPRIM
| ID: wpr-19517
ABSTRACT
OBJECTIVES:
The purpose of this study was to evaluate the polymerization shrinkage stress among conventional methacrylate-based composite resins and a silorane-based composite resin. MATERIALS ANDMETHODS:
The strain gauge method was used for the determination of polymerization shrinkage strain. Specimens were divided by 3 groups according to various composite materials. Filtek Z-250 (3M ESPE) and Filtek P-60 (3M ESPE) were used as a conventional methacrylate-based composites and Filtek P-90 (3M ESPE) was used as a silorane-based composites. Measurements were recorded at each 1 second for the total of 800 seconds including the periods of light application. The results of polymerization shrinkage stress were statistically analyzed using One way ANOVA and Tukey test (p = 0.05).RESULTS:
The polymerization shrinkage stress of a silorane-based composite resin was lower than those of conventional methacrylate-based composite resins (p 0.05).CONCLUSIONS:
Within the limitation of this study, silorane-based composites showed lower polymerization shrinkage stress than methacrylate-based composites. We need to investigate more into polymerization shrinkage stress with regard to elastic modulus of silorane-based composites for the precise result.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Polímeros
/
Entorses e Distensões
/
Resinas Compostas
/
Módulo de Elasticidade
/
Polimerização
/
Luz
Idioma:
Coreano
Revista:
Journal of Korean Academy of Conservative Dentistry
Ano de publicação:
2011
Tipo de documento:
Artigo
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