Fracture resistance of endodontically treated teeth restored with Zirconia filler containing composite core material and fiber posts | AlJaedi | Pakistan Journal of Medical Sciences
 
میز اداری صندلی مدیریتی صندلی اداری تبلیغات کلیکی میز تلویزیون پاراگلایدر آگهی رایگان محسن چاوشی مسیح و آرش آهنگ جدید لباس زیر شورت زنانه خرید اینترنتی وبلاگدهی گن لاغری

Fracture resistance of endodontically treated teeth restored with Zirconia filler containing composite core material and fiber posts

Zaid AlJaedi

Abstract


Objectives: To assess the fracture resistance of endodontically treated teeth with a novel Zirconia (Zr) nano-particle filler containing bulk fill resin composite.

Methods: Forty-five freshly extracted maxillary central incisors were endodontically treated using conventional step back preparation and warm lateral condensation filling. Post space preparation was performed using drills compatible for fiber posts (Rely X Fiber Post) on all teeth (n=45), and posts were cemented using self etch resin cement (Rely X Unicem). Samples were equally divided into three groups (n=15) based on the type of core materials, ZirconCore (ZC) MulticCore Flow (MC) and Luxacore Dual (LC). All specimens were mounted in acrylic resin and loads were applied (Universal testing machine) at 130° to the long axis of teeth, at a crosshead speed of 0.5 mm/min until failure. The loads and the site at which the failures occurred were recorded. Data obtained was tabulated and analyzed using a statistical program. The means and standard deviations were compared using ANOVA and Multiple comparisons test.

Results: The lowest and highest failure loads were shown by groups LC (18.741±3.02) and MC (25.16±3.30) respectively. Group LC (18.741±3.02) showed significantly lower failure loads compared to groups ZC (23.02±4.21) and MC (25.16±3.30) (p<0.01). However groups ZC (23.02±4.21) and MC (25.16±3.30) showed comparable failure loads (p=0.23).

Conclusions: Fracture resistance of endodontically treated teeth restored with Zr filler containing bulk fill composite cores was comparable to teeth restored with conventional Zr free bulk fill composites. Zr filled bulk fill composites are recommended for restoration of endodontically treated teeth as they show comparable fracture resistance to conventional composite materials with less catastrophic failures.

doi: https://doi.org/10.12669/pjms.326.11282

How to cite this:Al-Jeaidi Z. Fracture resistance of endodontically treated teeth restored with Zirconia filler containing composite core material and fiber posts. Pak J Med Sci. 2016;32(6):1474-1478.   doi: https://doi.org/10.12669/pjms.326.11282

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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