TY - JOUR T1 - Comparative evaluation of fracture resistance under static and fatigue loading of endodontically treated teeth restored with carbon fiber posts, glass fiber posts, and an experimental dentin post system: an in vitro study. AU - Ambica,Khetarpal, AU - Mahendran,Kavitha, AU - Talwar,Sangeeta, AU - Verma,Mahesh, AU - Padmini,Govindaswamy, AU - Periasamy,Ravishankar, Y1 - 2012/09/11/ PY - 2012/03/09/received PY - 2012/07/23/revised PY - 2012/07/26/accepted PY - 2012/12/12/entrez PY - 2012/12/12/pubmed PY - 2013/12/16/medline SP - 96 EP - 100 JF - Journal of endodontics JO - J Endod VL - 39 IS - 1 N2 - INTRODUCTION: This investigation sought to compare the fracture resistance under static and fatigue loading of endodontically treated teeth restored with fiber-reinforced composite posts and experimental dentin posts milled from human root dentin by using computer-aided design/computer-aided manufacturing. METHODS: Seventy maxillary central incisors were obturated and divided into 4 groups: control group without any post (n = 10), carbon fiber post group (n = 20), glass fiber post group (n = 20), and dentin post group (n = 20). Control group teeth were prepared to a height of 5 mm. In all other teeth, post space was prepared; a post was cemented, and a core build-up was provided. Half the samples from each group were statistically loaded until failure, and the remaining half were subjected to cyclic loading, followed by monostatic load until fracture. RESULTS: One-way analysis of variance and Bonferroni multiple comparisons revealed a significant difference among test groups. The control group demonstrated highest fracture resistance (935.03 ± 33.53 N), followed by the dentin post group (793.12 ± 33.69 N), glass fiber post group (603.44 ± 46.67 N), and carbon fiber post group (497.19 ± 19.27 N) under static loading. These values reduced to 786.69 ± 29.64 N, 646.34 ± 26.56 N, 470 ± 36.34 N, and 379.71 ± 13.95 N, respectively, after cyclic loading. CONCLUSIONS: Results suggest that human dentin can serve as post material under static and fatigue loading. Although at an early stage in research, the use of dentin posts in root-filled teeth looks promising. SN - 1878-3554 UR - https://www.unboundmedicine.com/medline/citation/23228265/Comparative_evaluation_of_fracture_resistance_under_static_and_fatigue_loading_of_endodontically_treated_teeth_restored_with_carbon_fiber_posts_glass_fiber_posts_and_an_experimental_dentin_post_system:_an_in_vitro_study_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0099-2399(12)00727-3 DB - PRIME DP - Unbound Medicine ER -