Fracture resistance of teeth restored with different resin-based restorative systems
Braz. oral res
; 26(3): 275-281, May-June 2012. ilus, tab
Article
in En
| LILACS
| ID: lil-622931
Responsible library:
BR1.1
ABSTRACT
The aim of the present study was to evaluate the fracture resistance of teeth restored with resin composite. Forty-eight maxillary premolar teeth were chosen and randomly divided to six groups G1 (control) sound teeth; G2 MOD preparation, unrestored; G3 MOD + Adper Single Bond 2/P60; G4 MOD + Adper Easy One/P60; G5 MOD + P90 restorative system; G6 MOD + Adper Easy One/P90 Bond/P90. Specimens were subjected to compressive axial loading (0.5 mm/min). Flexural strength and the modulus of elasticity were also tested (n = 7). The only statistical equivalence with sound teeth was noted for G3 (p < 0.05). Flexural strength and the modulus of elasticity varied among the composites tested (n = 10). The reestablishment of the resistance to fracture in premolars subjected to Class II MOD preparations is restorative-system-dependent. The silorane restorative system is not able to recover the resistance to fracture.
Key words
Full text:
1
Index:
LILACS
Main subject:
Tooth Fractures
/
Composite Resins
/
Dental Restoration, Permanent
Type of study:
Evaluation_studies
Limits:
Humans
Language:
En
Journal:
Braz. oral res
Journal subject:
ODONTOLOGIA
Year:
2012
Type:
Article