Tags

Type your tag names separated by a space and hit enter

Fracture strength of custom-fabricated Celay all-ceramic post and core restored endodontically treated teeth.
Chin Med J (Engl). 2006 Nov 05; 119(21):1815-20.CM

Abstract

BACKGROUND

The increased use of all-ceramic crown provides a rationale for tooth-colored core. Due to superior mechanical properties, Vita Celay infiltration ceramic developed for crown and bridge works presents the potential for fabricating all-ceramic posts and cores in one piece. This study was conducted to compare the fracture strength of endodontically treated teeth which were thereafter given different types of posts and cores and crowns restoration, respectively. The evaluated post-and-core systems are: custom-fabricated Celay all-ceramic post-core, custom cast metal post-core, and prefabricated stainless steel post (Parapost) with and without 2.0 mm dentine ferrule.

METHODS

Sixty freshly extracted human maxillary central incisors were endodontically treated and randomly divided into five groups with 12 samples each. Group A: Celay ceramic post-cores restored teeth with 2.0 mm dentine ferrule. Group B: Celay ceramic post-cores restored teeth with no dentine ferrule. Group C: cast metal post-cores restored teeth with 2.0 mm dentine ferrule. Group D: cast metal post-cores restored teeth with no dentine ferrule. Group E: prefabricated post and composite cores restored teeth with 2.0 mm dentine ferrule. All teeth were restored with Celay ceramic crowns. Each specimen was subjected to a load at a 45-degree angle to the long axis on MTS 810 material testing machine until failure, at crosshead speed of 0.02 cm/minute. Analysis of variance followed by the Newman-Keuls pairwise multiple comparison tests were used to compare the results of the groups tested.

RESULTS

There was a statistically significant difference among the five groups (P < 0.01). Celay ceramic post-cores restored teeth with 2.0 mm dentine ferrule [(758.35+/-19.26) N] and cast metal post-cores restored teeth with 2.0 mm dentine ferrule [(756.63+/-66.22) N] had a significantly greater mean fracture strength than the other three groups in which no significant difference was observed. The 2.0 mm dentine ferrule could cause significant fracture resistance alteration of Celay post-core restored teeth.

CONCLUSIONS

When covered with Celay ceramic crowns, Celay post-cores restored teeth with 2.0 mm dentine ferrule and cast metal post-cores restored teeth with 2.0 mm dentine ferrule have similar fracture strength. There was a statistically significant difference between the fracture resistance of Celay post-core restored teeth with and without 2.0 mm dentine ferrule.

Authors+Show Affiliations

Department of Dentistry, Beijing Hospital, Beijing 100730, China. zhangyx1108@yahoo.com.cnNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17097037

Citation

Zhang, Yu-xing, et al. "Fracture Strength of Custom-fabricated Celay All-ceramic Post and Core Restored Endodontically Treated Teeth." Chinese Medical Journal, vol. 119, no. 21, 2006, pp. 1815-20.
Zhang YX, Zhang WH, Lu ZY, et al. Fracture strength of custom-fabricated Celay all-ceramic post and core restored endodontically treated teeth. Chin Med J (Engl). 2006;119(21):1815-20.
Zhang, Y. X., Zhang, W. H., Lu, Z. Y., & Wang, K. L. (2006). Fracture strength of custom-fabricated Celay all-ceramic post and core restored endodontically treated teeth. Chinese Medical Journal, 119(21), 1815-20.
Zhang YX, et al. Fracture Strength of Custom-fabricated Celay All-ceramic Post and Core Restored Endodontically Treated Teeth. Chin Med J (Engl). 2006 Nov 5;119(21):1815-20. PubMed PMID: 17097037.
* 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 restored endodontically treated teeth. AU - Zhang,Yu-xing, AU - Zhang,Wei-hong, AU - Lu,Zhi-yue, AU - Wang,Ke-li, PY - 2006/11/14/pubmed PY - 2006/12/14/medline PY - 2006/11/14/entrez SP - 1815 EP - 20 JF - Chinese medical journal JO - Chin Med J (Engl) VL - 119 IS - 21 N2 - BACKGROUND: The increased use of all-ceramic crown provides a rationale for tooth-colored core. Due to superior mechanical properties, Vita Celay infiltration ceramic developed for crown and bridge works presents the potential for fabricating all-ceramic posts and cores in one piece. This study was conducted to compare the fracture strength of endodontically treated teeth which were thereafter given different types of posts and cores and crowns restoration, respectively. The evaluated post-and-core systems are: custom-fabricated Celay all-ceramic post-core, custom cast metal post-core, and prefabricated stainless steel post (Parapost) with and without 2.0 mm dentine ferrule. METHODS: Sixty freshly extracted human maxillary central incisors were endodontically treated and randomly divided into five groups with 12 samples each. Group A: Celay ceramic post-cores restored teeth with 2.0 mm dentine ferrule. Group B: Celay ceramic post-cores restored teeth with no dentine ferrule. Group C: cast metal post-cores restored teeth with 2.0 mm dentine ferrule. Group D: cast metal post-cores restored teeth with no dentine ferrule. Group E: prefabricated post and composite cores restored teeth with 2.0 mm dentine ferrule. All teeth were restored with Celay ceramic crowns. Each specimen was subjected to a load at a 45-degree angle to the long axis on MTS 810 material testing machine until failure, at crosshead speed of 0.02 cm/minute. Analysis of variance followed by the Newman-Keuls pairwise multiple comparison tests were used to compare the results of the groups tested. RESULTS: There was a statistically significant difference among the five groups (P < 0.01). Celay ceramic post-cores restored teeth with 2.0 mm dentine ferrule [(758.35+/-19.26) N] and cast metal post-cores restored teeth with 2.0 mm dentine ferrule [(756.63+/-66.22) N] had a significantly greater mean fracture strength than the other three groups in which no significant difference was observed. The 2.0 mm dentine ferrule could cause significant fracture resistance alteration of Celay post-core restored teeth. CONCLUSIONS: When covered with Celay ceramic crowns, Celay post-cores restored teeth with 2.0 mm dentine ferrule and cast metal post-cores restored teeth with 2.0 mm dentine ferrule have similar fracture strength. There was a statistically significant difference between the fracture resistance of Celay post-core restored teeth with and without 2.0 mm dentine ferrule. SN - 0366-6999 UR - https://www.unboundmedicine.com/medline/citation/17097037/Fracture_strength_of_custom_fabricated_Celay_all_ceramic_post_and_core_restored_endodontically_treated_teeth_ L2 - https://Insights.ovid.com/pubmed?pmid=17097037 DB - PRIME DP - Unbound Medicine ER -