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 and two control 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 Fuji PLUS cement.
University of Zagreb, School of Dental Medicine, Department of Endodontics and Restorative Dentistry, Zagreb, Croatia.
Marija Rogić
MR
Barbić
Sanja
S
Segović
Anja
A
Baraba
Sonja Pezelj
SP
Ribarić
Marina
M
Katunarić
Ivica
I
Anić
D003763:Dental Leakage / Q000517:prevention & control*; D005899:Glass Ionomer Cements / Q000009:adverse effects*; D006801:Humans; D007180:Incisor; D010865:Pilot Projects; D012387:Root Canal Filling Materials / Q000009:adverse effects; D012390:Root Canal Therapy / Q000379:methods*; D014015:Tissue Banks; D015036:Zinc Phosphate Cement / Q000009:adverse effects*
D005899:Glass Ionomer Cements; D012387:Root Canal Filling Materials; C084541:Fuji glass-ionomer lining cement; D015036:Zinc Phosphate Cement; C074226:Harvard Cement