Influence of different post systems with various widths on the fracture resistance of endontically treated single rooted teeth

Document Type : Original Article

Author

Endodontic department , faculty of dentistry , Cairo university

Abstract

Aim: The aim of the present study was to evaluate the influence of different post systems (fiber and titanium posts) with different post sizes and on the fracture resistance of the endodontically treated single rooted teeth.
Methodology: Fifty-four freshly extracted maxillary central incisors were selected and grouped into three main groups according to the post system used; Group A were prepared to receive Rely-X posts with different sizes. Group B were prepared to receive titanium posts with different sizes. Group C were prepared to receive obturation only (control group). The specimens were prepared using Protaper Universal rotary files. Intervention groups A and B were divided, each into three sub groups; Group A was divided into Rely-X yellow coded (R.X.Y.C), Rely-X Red Coded (R.X.R.C), Rely-X Blue Coded (R.X.B.C) while Group B was divided into Short Titanium Posts (S.T.P), Medium Titanium Posts (M.T.P), Long Titanium Posts (L.T.P). Specimens were then loaded to fracture in a universal testing machine. The maximum load at which the teeth fractured and the fracture patterns were recorded.
Results: There was a statistically significant difference among all groups ; the control group showed the highest fracture resistance followed by the Rely-X Red Coded (R.X.R.C.) group, while the Short Titanium Posts (S.T.P.) group showed the least fracture resistance.
Conclusion: The control group (Obturation only) recorded the highest fracture resistance while the short titanium posts (STP) recorded the least fracture resistance

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Egyptian Dental Journal
Volume 68, Issue 2 - Serial Number 5
Conservative Dentistry and Endodontics
April 2022
Pages 1889-1898

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