Microleakage along glass-fibre posts cemented with three different materials after cyclic loading : a pilot study (CROSBI ID 165787)
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Podaci o odgovornosti
Rogić Barbić, Marija ; Šegović, Sanja ; Baraba, Anja ; Pezelj Ribarić, Sonja ; Katunarić, Marina ; Anić, Ivica
engleski
Microleakage along glass-fibre posts cemented with three different materials after cyclic loading : a pilot study
The purpose of this in vitro study was to evaluate microleakage along glass-fibre posts cemented with three different cements after cyclic loading. After post-space preparation, fifty obturated root canals were randomly divided into three experimental groups. In group 1, Glassix posts were cemented using Harvard cement, in group 2, Fuji PLUS cement was used and in group 3, Variolink II was used for post cementation. The specimens were artificially aged by loading in a special testing machine. Coronal leakage was evaluated using a fluid transport system. Posts cemented with Variolink II, showed significantly higher failure rate after loading, compared to group 1 and 2 (p=0.009). Comparing microleakage in samples that have not failed, specimens cemented with Variolink II showed significantly less fluid transport than specimens cemented with zinc phosphate and glass ionomer cements (p=0.04 and p=0.006, respectively). Variolink II cement exibited significantly less fluid movement compared with Harvard and zinc-phosphate cements.
cement; composite; glass-ionomer; microleakage; post
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