|
KMID : 1034420170420020125
|
|
Restorative Dentistry & Endodontics
2017 Volume.42 No. 2 p.125 ~ p.133
|
|
|
The effects of non-thermal plasma and conventional treatments on the bond strength of fiber posts to resin cement
|
|
Do Prado Maira
Da Silva Eduardo Moreira
Das Neves Marques Juliana
Gonzalez Caroline Brum
Simao Renata Antoun
|
|
|
Abstract
|
|
|
Objectives: This study compared the effect of hexamethyldisiloxane (HMDSO) and ammonia (NH3) plasmas on the bond strength of resin cement to fiber posts with conventional treatments.
Materials and Methods: Sixty-five fiber posts were divided into 5 groups: Control (no surface treatment); H2O2 (24% hydrogen peroxide for 1 min); Blasting (blasting with aluminum oxide for 30 sec); NH3 (NH3 plasma treatment for 3 min); HMDSO (HMDSO plasma treatment for 15 min). After the treatments, the Ambar adhesive (FGM Dental Products) was applied to the post surface (n = 10). The fiber post was inserted into a silicon matrix that was filled with the conventional resin cement Allcem Core (FGM). Afterwards, the post/cement specimens were cut into discs and subjected to a push-out bond strength (POBS) test. Additionally, 3 posts in each group were evaluated using scanning electron microscopy. The POBS data were analyzed by one-way analysis of variance and the Tukey's honest significant difference post hoc test (α = 0.05).
Results: The Blasting and NH3 groups showed the highest POBS values. The HMDSO group showed intermediate POBS values, whereas the Control and H2O2 groups showed the lowest POBS values.
Conclusion: Blasting and NH3 plasma treatments were associated with stronger bonding of the conventional resin cement Allcem to fiber posts, in a procedure in which the Ambar adhesive was used.
|
|
|
KEYWORD
|
|
|
Bonding, Fiber post, Plasma gas, Surface treatment
|
|
|
FullTexts / Linksout information
|
|
 
|
|
|
Listed journal information
|
|
 
|