TITLE:
Effect of restorative techniques on fracture resistance of endodontically treated premolars
AUTHORS:
Bandar M. A. Al-Makramani, Abdul A. A. Razak, Ng M. Yi, Sin Y. Ying, Fuad A. Al-Sanabani
KEYWORDS:
Endodontic Treatment; Fiber Post; Fracture Resistance
JOURNAL NAME:
Open Journal of Stomatology,
Vol.3 No.7,
October
24,
2013
ABSTRACT: Purpose: This study was
aimed to evaluate the effect of restorative materials and glass fiber post on
the fracture resistance of endodontically treated premolars. Material and
Methods: Fifty extracted single rooted lower premolars were used in this in
vitro study and divided into 5 groups: sound teeth (control group);
mesial-occlusal-distal (MOD) preparation + endodontic treatment + composite
restoration; MOD preparation + endodontic treatment + glass fiber post +
composite restoration; MOD preparation + endodontic treatment + amalgam
restoration; MOD preparation + endodontic treatment + glass fiber post +
amalgam restoration. The specimens were loaded on a universal testing machine
at the crosshead speed of1 mm/min
until fracture. The data were analyzed using two-way ANOVA test. Results: The
mean loads at fracture were 860.11 N, 801.79 N, 761.39 N, 737.14 N and 707.85 N
respectively. There were no statistically significant differences (P > 0.05)
in the fracture resistance of teeth restored with composite and amalgam, as
well as restored with or without glass fiber post. Conclusions:
The type of restorative material and the usage of glass fiber post do not have
visible influence on the fracture resistance
of the endodontically treated mandibular premolars.