LABORATORY ASSESSMENT OF FRACTURE RESISTANCE OF ENDODONTICALLY TREATED TEETH RESTORED WITH THREE DIFFERENT POST AND CORE SYSTEMS

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RANJBAR OMRANI L.; YASINI E.; MIRZAEI M.; ABBASI M.; BANIASAD N.; KERMANSHAH H.

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Journal: JOURNAL OF ISLAMIC DENTAL ASSOCIATION OF IRAN (MAJALLAH-I-DANDANPIZISHKI) Year:2012 | Volume:24 | Issue:2 (83) Page(s): 121-127

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Title

LABORATORY ASSESSMENT OF FRACTURE RESISTANCE OF ENDODONTICALLY TREATED TEETH RESTORED WITH THREE DIFFERENT POST AND CORE SYSTEMS

Author(s)

Keywords

RECONSTRUCTIONQ2

ENDODONTICALLY TREATED TEETHQ2

POST AND COREQ3

FRACTURE RESISTANCEQ3

Abstract

Background and Aim: Prefabricated posts are advantageous in restoring ENDODONTICALLY TREATED TEETH because of their lower cost and operation time. Since selecting a suitable restoration is important in the survival of these teeth, in this study FRACTURE RESISTANCE and the mode of failure of ENDODONTICALLY TREATED TEETH restored with three different POST AND CORE systems were evaluated.Materials and Methods: In this in vitro study, 36 human premolars were divided into three groups; namely, group 1, non precious cast POST AND CORE; group 2, prefabricated metal post with amalgam core; group 3, FRC post and composite core. All groups received crowning. Specimens were thermocycled and loaded until definite failure. The FRACTURE RESISTANCE and failure modes were analyzed with one way ANOVA and Fisher Exact tests.Results: The mean failure load for the three groups was 794, 647 and 724 N, respectively. Statistical analysis did not show any significant differences between the FRACTURE RESISTANCE of the three experimental groups (P=0.0579). All failures in group 1, eight in group 2 and three in group 3, were unrestorable. Fisher’s Exact test showed significant difference between group 3 and the two other groups (P<0.05).Conclusion: If there is a 2-mm ferrule, the type of POST AND CORE does not have a significant effect on the FRACTURE RESISTANCE, but it has a significant effect on the failure mode.

Cites

EFFECT OF INTRACANAL POST SPACE TREATMENTS ON PUSH-OUT BOND STRENGTH OF FIBER POSTS TO ROOT DENTIN

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APA: Copy

RANJBAR OMRANI, L., YASINI, E., MIRZAEI, M., ABBASI, M., BANIASAD, N., & KERMANSHAH, H.. (2012). LABORATORY ASSESSMENT OF FRACTURE RESISTANCE OF ENDODONTICALLY TREATED TEETH RESTORED WITH THREE DIFFERENT POST AND CORE SYSTEMS. JOURNAL OF IRANIAN DENTAL ASSOCIATION (JIDA) (MAJALLAH-I-DANDANPIZISHKI), 24(2 (83)), 121-127. SID. https://sid.ir/paper/55137/en

Vancouver: Copy

RANJBAR OMRANI L., YASINI E., MIRZAEI M., ABBASI M., BANIASAD N., KERMANSHAH H.. LABORATORY ASSESSMENT OF FRACTURE RESISTANCE OF ENDODONTICALLY TREATED TEETH RESTORED WITH THREE DIFFERENT POST AND CORE SYSTEMS. JOURNAL OF IRANIAN DENTAL ASSOCIATION (JIDA) (MAJALLAH-I-DANDANPIZISHKI)[Internet]. 2012;24(2 (83)):121-127. Available from: https://sid.ir/paper/55137/en

IEEE: Copy

L. RANJBAR OMRANI, E. YASINI, M. MIRZAEI, M. ABBASI, N. BANIASAD, and H. KERMANSHAH, “LABORATORY ASSESSMENT OF FRACTURE RESISTANCE OF ENDODONTICALLY TREATED TEETH RESTORED WITH THREE DIFFERENT POST AND CORE SYSTEMS,” JOURNAL OF IRANIAN DENTAL ASSOCIATION (JIDA) (MAJALLAH-I-DANDANPIZISHKI), vol. 24, no. 2 (83), pp. 121–127, 2012, [Online]. Available: https://sid.ir/paper/55137/en

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