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Fracture behaviors of maxillary central incisors with flared root canals restored with CAD/CAM integrated glass fiber post-and-core.
Dent Mater J. 2019 Feb 08; 38(1):114-119.DM

Abstract

The objective was to evaluate the fracture resistance properties of maxillary incisors with flared canals restored with computer aided design and computer aided manufacture (CAD/CAM) integrated glass fiber post-and-core. Thirty prepared flared root canals were selected in vitro and restored with CAD/CAM integrated fiber post-and-core (Group A), prefabricated fiber posts (Group B), and cast gold alloy (Group C), respectively. After submitted to fatigue loading, each specimen was subjected to a static loading until fracture. Analysis of variance (ANOVA) tests were used to determine statistical differences. The mean fracture strengths of Groups A and C were significantly higher than those of Group B, whereas no differences were observed between Groups A and C. In addition, reparable fracture modes were mostly observed in Group A while irreparable and catastrophic fractures were mostly found in Groups B and C. These results demonstrate that, in comparison to traditional treatments, CAD/CAM integrated glass fiber post-and-core restoration significantly enhances the fracture resistance of flared root canals.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Pang J
Department of Stomatology, The General Hospital of the Air Force P.L.A.
Feng C
Comprehensive Department of Stomatology, Suzhou Dental Hospital.
Zhu X
Department of Stomatology, The General Hospital of the Air Force P.L.A.
Liu B
Department of Stomatology, The General Hospital of the Air Force P.L.A.
Deng T
Department of Stomatology, The General Hospital of the Air Force P.L.A.
Gao Y
Department of Stomatology, The General Hospital of the Air Force P.L.A.
Li Y
Department of Stomatology, The General Hospital of the Air Force P.L.A.
Ke J
Department of Stomatology, The General Hospital of the Air Force P.L.A.

MeSH

Computer-Aided DesignDental AlloysDental Restoration FailureDental Stress AnalysisGlassGoldHumansIn Vitro TechniquesIncisorMaterials TestingMaxillaPost and Core TechniqueRoot Canal PreparationStress, MechanicalTooth Fractures

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30381631

Citation

Pang, Jianliang, et al. "Fracture Behaviors of Maxillary Central Incisors With Flared Root Canals Restored With CAD/CAM Integrated Glass Fiber Post-and-core." Dental Materials Journal, vol. 38, no. 1, 2019, pp. 114-119.
Pang J, Feng C, Zhu X, et al. Fracture behaviors of maxillary central incisors with flared root canals restored with CAD/CAM integrated glass fiber post-and-core. Dent Mater J. 2019;38(1):114-119.
Pang, J., Feng, C., Zhu, X., Liu, B., Deng, T., Gao, Y., Li, Y., & Ke, J. (2019). Fracture behaviors of maxillary central incisors with flared root canals restored with CAD/CAM integrated glass fiber post-and-core. Dental Materials Journal, 38(1), 114-119. https://doi.org/10.4012/dmj.2017-394
Pang J, et al. Fracture Behaviors of Maxillary Central Incisors With Flared Root Canals Restored With CAD/CAM Integrated Glass Fiber Post-and-core. Dent Mater J. 2019 Feb 8;38(1):114-119. PubMed PMID: 30381631.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fracture behaviors of maxillary central incisors with flared root canals restored with CAD/CAM integrated glass fiber post-and-core. AU - Pang,Jianliang, AU - Feng,Changfen, AU - Zhu,Xiaoru, AU - Liu,Bing, AU - Deng,Tianzheng, AU - Gao,Yuan, AU - Li,Ying, AU - Ke,Jie, Y1 - 2018/11/01/ PY - 2018/11/2/pubmed PY - 2019/7/28/medline PY - 2018/11/2/entrez KW - CAD/CAM KW - Flared root canal KW - Fracture resistance KW - Glass fiber KW - Post-and-core SP - 114 EP - 119 JF - Dental materials journal JO - Dent Mater J VL - 38 IS - 1 N2 - The objective was to evaluate the fracture resistance properties of maxillary incisors with flared canals restored with computer aided design and computer aided manufacture (CAD/CAM) integrated glass fiber post-and-core. Thirty prepared flared root canals were selected in vitro and restored with CAD/CAM integrated fiber post-and-core (Group A), prefabricated fiber posts (Group B), and cast gold alloy (Group C), respectively. After submitted to fatigue loading, each specimen was subjected to a static loading until fracture. Analysis of variance (ANOVA) tests were used to determine statistical differences. The mean fracture strengths of Groups A and C were significantly higher than those of Group B, whereas no differences were observed between Groups A and C. In addition, reparable fracture modes were mostly observed in Group A while irreparable and catastrophic fractures were mostly found in Groups B and C. These results demonstrate that, in comparison to traditional treatments, CAD/CAM integrated glass fiber post-and-core restoration significantly enhances the fracture resistance of flared root canals. SN - 1881-1361 UR - https://www.unboundmedicine.com/medline/citation/30381631/Fracture_behaviors_of_maxillary_central_incisors_with_flared_root_canals_restored_with_CAD/CAM_integrated_glass_fiber_post_and_core_ DB - PRIME DP - Unbound Medicine ER -