The Effect of Surface Treatments on the Bond Strength of Fiber Post to Root Canal Dentin

Yıl 2013, Cilt: 1 Sayı: 1, 35 - 38, 29.07.2013

Nimet Gençoğlu Pelin Sezgin Mustafa Gündoğar Can Şivet

Öz

It’s known that many factors such as root canal dentin or post surface
treatment may effect the retention of post. The purpose of this in vitro
study was to evaluate the effect of different surface treatments on the
bond strength of fiber post with luting agent to root canal dentin.
75 extracted single root teeth were used in this study. The canals
were prepared with rotary instruments and obturated by AH Plus
and lateral condensation technique. After post space preparation, 75
fiber-posts (Rebilda, Voco) were divided into 5 groups and treated
with one of the following surface treatment procedures: no treatment
(control), silanization, etching by % 9.6 hydrofluoric acid, sand
blasting with 50 milimicron Al2O3 and bonded (15 of each). After
that, posts were bonded with dual polimerizing resin based luting
material. The specimens were embedded in acrilic resin blocks and
sliced from the apical, middle, coronal part of the roots. A push out
bond strength test was performed by a universal testing machine at
across head speed of 1mm/min. Data were analyzed with one-way
Anova and Tukey tests. Although silanization showed the least and
sanding the best bond strength, only statistical difference was found
between silanization and etching (p<0.05) and between sanding and
bonding (p<0.05). Bonding group showed the highest bond strength
in coronal section, and sandblasted group in middle and apical
section (p<0.05). The different surface treatment affected the bond
strenght of fiber post to root canal dentin.

Anahtar Kelimeler

Fiber post; push-out test; sanding; silanization; bonding;

Kaynakça

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