Does the Period of Air-Drying Affect Dentin Bond Strength of Different Adhesive Systems.
Br J Med Med Res
;
2014 Sept; 4(27): 4523-4532
Article
in English
| IMSEAR
| ID: sea-175480
ABSTRACT
Aims:
To evaluate the effect of air-drying time of adhesives on shear bond strength of different adhesive systems.Methodology:
The occlusal surfaces of 175 mandibular third molars were ground to obtain flat dentin surfaces and then divided into three groups according to three adhesive systems used (1) Conventional three-step adhesive (Scotchbond Multi-purpose Plus); 2) Self-etch adhesive (Adper Easy Bond) and 3) Single bottle self-etch adhesive (Scotchbond Universal adhesive). Regarding the application of adhesives before resin composite application, it was gently air-dried for 3 s in Groups 1, whereas, the adhesive was left wet in Group 2. The group 3, that was air-dried until the liquid did not move (5 s), was served as control. Following bonding of resin cement (Filtek Supreme) to dentin, the specimens were light cured for 20s with a LED. After storage in water at 37ºC for one week, the strength measurements were accomplished with universal testing machine (Lloyd LRX) until the failure occurs. Failure modes were examined using a stereomicroscope and scanning electron microscope. The data were analyzed with two-way analysis of variance Original Research Article British Journal of Medicine & Medical Research, 4(27) 4523-4532, 2014 4524 (ANOVA) and TukeyHSD tests (α=0.05).Results:
The two-way ANOVA revealed that adhesive systems had a significant effect on shear bond strength values (p<0.001). However, air-drying time did not influence shear bond strength (p=0.442). Additionally, there was no interaction effect between adhesive systems and air-drying time (p=0.835).Conclusion:
The data suggests that increased air-drying time of adhesives does not significantly affect bond strength.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Language:
English
Journal:
Br J Med Med Res
Year:
2014
Type:
Article
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