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[Fracture strength of custom-fabricated celay all-ceramic post and core].
Hua Xi Kou Qiang Yi Xue Za Zhi. 2002 Feb; 20(1):39-41, 44.HX

Abstract

OBJECTIVE

The purpose of this study is to compare the fracture strengths of custom-fabricated Celay all-ceramic post-core, custom cast metal post-core, and prefabricated stainless steel post (Parapost) plus composite resin core with or without a 2.0 mm dentine ferrule.

METHODS

A total of 60 recently extracted human maxillary central incisors were endodontically treated and divided into five groups of 12. They were given the following treatments: Group A: Celay ceramic post-core with 2.0 mm dentine ferrule, Group B: Celay ceramic post-core with no dentine ferrule, Group C: cast metal post-core with 2.0 mm dentine ferrule, Group D: cast metal post-core with no dentine ferrule, and Group E: prefabricated post and composite core with 2.0 mm dentine ferrule. All specimens were stored at 100% humidity at room temperature for 30 days before testing. Each specimen was in a special jig at a 45 degrees angle to the long axis and subjected to a load on MTS 810 universal material testing machine until failure, with crosshead speed of 0.02 cm/min. Analysis of variance followed by the Newman-Keuls pairwise multiple comparison test was used to compare the results of the groups tested.

RESULTS

There was a statistically significant difference between five groups (P < 0.01). Celay ceramic post-core with 2.0 mm dentine ferrule (758.35 N +/- 119.26 N) and cast metal post-core with 2.0 mm dentine ferrule (756.63 N +/- 166.22 N) had a significantly larger mean failure threshold for fracture than the other three groups which had no significant difference between each other. There was a statistically significant difference between the fracture resistance of Celay post-core restored teeth with and without 2.0 mm dentine ferrule.

CONCLUSION

The custom-fabricated Celay post-core could be a choice for clinical use in endodontically treated tooth when the final restoration is an all-ceramic crown and the preparation has a 2.0 mm dentine ferrule.

Authors+Show Affiliations

Department of Dentistry, Beijing Hospital.No affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article

Language

chi

PubMed ID

12593200

Citation

Zhang, Yuxing, et al. "[Fracture Strength of Custom-fabricated Celay All-ceramic Post and Core]." Hua Xi Kou Qiang Yi Xue Za Zhi = Huaxi Kouqiang Yixue Zazhi = West China Journal of Stomatology, vol. 20, no. 1, 2002, pp. 39-41, 44.
Zhang Y, Lu Z, Wang K. [Fracture strength of custom-fabricated celay all-ceramic post and core]. Hua Xi Kou Qiang Yi Xue Za Zhi. 2002;20(1):39-41, 44.
Zhang, Y., Lu, Z., & Wang, K. (2002). [Fracture strength of custom-fabricated celay all-ceramic post and core]. Hua Xi Kou Qiang Yi Xue Za Zhi = Huaxi Kouqiang Yixue Zazhi = West China Journal of Stomatology, 20(1), 39-41, 44.
Zhang Y, Lu Z, Wang K. [Fracture Strength of Custom-fabricated Celay All-ceramic Post and Core]. Hua Xi Kou Qiang Yi Xue Za Zhi. 2002;20(1):39-41, 44. PubMed PMID: 12593200.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Fracture strength of custom-fabricated celay all-ceramic post and core]. AU - Zhang,Yuxing, AU - Lu,Zhiyue, AU - Wang,Keli, PY - 2003/2/21/pubmed PY - 2004/8/11/medline PY - 2003/2/21/entrez SP - 39-41, 44 JF - Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology JO - Hua Xi Kou Qiang Yi Xue Za Zhi VL - 20 IS - 1 N2 - OBJECTIVE: The purpose of this study is to compare the fracture strengths of custom-fabricated Celay all-ceramic post-core, custom cast metal post-core, and prefabricated stainless steel post (Parapost) plus composite resin core with or without a 2.0 mm dentine ferrule. METHODS: A total of 60 recently extracted human maxillary central incisors were endodontically treated and divided into five groups of 12. They were given the following treatments: Group A: Celay ceramic post-core with 2.0 mm dentine ferrule, Group B: Celay ceramic post-core with no dentine ferrule, Group C: cast metal post-core with 2.0 mm dentine ferrule, Group D: cast metal post-core with no dentine ferrule, and Group E: prefabricated post and composite core with 2.0 mm dentine ferrule. All specimens were stored at 100% humidity at room temperature for 30 days before testing. Each specimen was in a special jig at a 45 degrees angle to the long axis and subjected to a load on MTS 810 universal material testing machine until failure, with crosshead speed of 0.02 cm/min. Analysis of variance followed by the Newman-Keuls pairwise multiple comparison test was used to compare the results of the groups tested. RESULTS: There was a statistically significant difference between five groups (P < 0.01). Celay ceramic post-core with 2.0 mm dentine ferrule (758.35 N +/- 119.26 N) and cast metal post-core with 2.0 mm dentine ferrule (756.63 N +/- 166.22 N) had a significantly larger mean failure threshold for fracture than the other three groups which had no significant difference between each other. There was a statistically significant difference between the fracture resistance of Celay post-core restored teeth with and without 2.0 mm dentine ferrule. CONCLUSION: The custom-fabricated Celay post-core could be a choice for clinical use in endodontically treated tooth when the final restoration is an all-ceramic crown and the preparation has a 2.0 mm dentine ferrule. SN - 1000-1182 UR - https://www.unboundmedicine.com/medline/citation/12593200/[Fracture_strength_of_custom_fabricated_celay_all_ceramic_post_and_core]_ DB - PRIME DP - Unbound Medicine ER -