Comparison of polymer-based temporary crown and fixed partial denture materials by diametral tensile strength
The Journal of Advanced Prosthodontics
;
: 14-17, 2010.
Article
Dans Anglais
| WPRIM
| ID: wpr-63440
ABSTRACT
PURPOSE:
The purpose of this study was to investigate the diametral tensile strength of polymer-based temporary crown and fixed partial denture (FPD) materials, and the change of the diametral tensile strength with time. MATERIAL ANDMETHODS:
One monomethacrylate-based temporary crown and FPD material (Trim) and three dimethacrylate-based ones (Protemp 3 Garant, Temphase, Luxtemp) were investigated. 20 specimens (the empty set 4 mm x 6 mm) were fabricated and randomly divided into two groups (Group I Immediately, Group II 1 hour) according to the measurement time after completion of mixing. Universal Testing Machine was used to load the specimens at a cross-head speed of 0.5 mm/min. The data were analyzed using one-way ANOVA, the multiple comparison Scheffe test and independent sample t test (alpha = 0.05).RESULTS:
Trim showed severe permanent deformation without an obvious fracture during loading at both times. There were statistically significant differences among the dimethacrylate-based materials. The dimethacrylate-based materials presented an increase in strength from 5 minutes to 1 hour and were as follows Protemp 3 Garant (23.16 - 37.6 MPa), Temphase (22.27 - 28.08 MPa), Luxatemp (14.46 - 20.59 MPa). Protemp 3 Garant showed the highest value.CONCLUSION:
The dimethacrylate-based temporary materials tested were stronger in diametral tensile strength than the monomethacrylate-based one. The diametral tensile strength of the materials investigated increased with time.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Poly(acides méthacryliques)
/
Résistance à la traction
/
Résines acryliques
/
Méthacrylate bisphénol A-glycidyl
/
Collodion
/
Résines composites
/
Couronnes
/
Prothèse partielle fixe
/
Méthacrylates
langue:
Anglais
Texte intégral:
The Journal of Advanced Prosthodontics
Année:
2010
Type:
Article
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