In vitro bond strength and fatigue stress test evaluation of different adhesive cements used for fixed space maintainer cementation.
Eur J Dent
; 8(3): 314-319, 2014 Jul.
Article
in En
| MEDLINE
| ID: mdl-25202209
ABSTRACT
OBJECTIVE:
The purposes of this research were to (1) compare the shear-peel bond strength (SPBS) of a band of a fixed space maintainer (SM) cemented with five different adhesive cements; and (2) compare the survival time of bands of SM with each cement type after simulating mechanical fatigue stress. MATERIALS ANDMETHODS:
Seventy-five teeth were used to assess retentive strength and another 50 teeth were used to assess the fatigue survival time. SPBS was determined with a universal testing machine. Fatigue testing was conducted in a ball mill device.RESULTS:
The mean survival time of bands cemented with R & D series Nova Glass-LC (6.2 h), Transbond Plus (6.7 h), and R & D series Nova Resin (6.8 h) was significantly longer than for bands cemented with Ketac-Cem (5.4 h) and GC Equia (5.2 h) (P < 0.05).CONCLUSION:
Although traditional glass ionomer cement (GIC) cement presented higher retentive strength than resin-based cements (resin, resin modified GIC, and compomer cement), resin based cements, especially dual cure resin cement (nova resin cement) and compomer (Transbond Plus), can be expected to have lower failure rates for band cementation than GIC (Ketac-Cem) in the light of the results of the ball mill test.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Eur J Dent
Year:
2014
Document type:
Article