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Evaluation the Fracture Resistance of Endodontically Treated Teeth Restored With Different Post and | ||
| Tikrit Journal for Dental Sciences | ||
| Volume 2, Issue 2, December 2012, Pages 110-116 PDF (246.77 K) | ||
| DOI: 10.25130/tjds.2.2.5 | ||
| Authors | ||
| Biland M. Shukri BDS, MSc.1; Iman M. Al-Zaka BDS, MSc.2; Ahmed S. Mustafa BDS, MSc3; Jamal Aziz M. BDS, MSc4; Muthenna Sh. Rajab BDS, MSc5 | ||
| 1(1)Lecturer, Department of Conservative Dentistry, College of Dentistry, Al-Mustansiria University. | ||
| 2(2) Ass. Professor, Department of Conservative Dentistry, College of Dentistry, Al-Mustansiria University. | ||
| 3(3)Lecturer, Department of Conservative Dentistry,College of Dentistry, Al-Mustansiria University. | ||
| 4(4)Prof. , Department of Conservative Dentistry, College of Dentistry, Al-Mustansiria University. | ||
| 5(5)Ass. Professor, Department of Conservative Dentistry, College of Dentistry, Universityof Tikrit. | ||
| Abstract | ||
| Widespread use of prefabricated post that provides retention and support for core and the final crown has caused manufacturers to produce different types of post materials. The aim of this study was to evaluative the fracture resistance of two types of post materials and two types of core material. Forty extracted human mandibular premolar were selected. After root canal preparation and obturation with gutta percha the roots were divided into two groups according to the type of post material, group F restored with fiber post and group T restored with titanium post then each group was subdivided into two subgroup according to the type of core materials which include composite and amalgam restorative materials. Then all the teeth were subjected to compressive load at 130oangle from the horizontal plan at a 5mm/min crosshead speed until fracture. Results showed that there was significant different between groups in term of fracture loads (P= 0.0156). Also the fracture loads of teeth restored with titanium post andcomposite core has highest mean fracture load (812N), whereas teeth restored with fiber post and amalgam core demonstrated the lowest mean fracture load (643.1N). The study concluded that the teeth restored with metal titanium post were more fracture resistant than those restored with fiber posts. But the combination of a fiber post and composite core has the favorable mode of fracture that considered reparable, while considered unfavorable when restored with titanium post. | ||
| Keywords | ||
| fracture resistance fiber post titanium pos | ||
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