Open AccessRigidity, retention, and resistance of titanium versus double taper light root canal posts: An in vitro evaluation
Author(s) -
Ramneek Khatter,
Rupa Singh,
Renu Sroa
Publication year - 2011
Publication title -
indian journal of dental research/indian journal of dental research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.277
H-Index - 43
eISSN - 1998-3603
pISSN - 0970-9290
DOI - 10.4103/0970-9290.94694
Subject(s) - titanium , materials science , universal testing machine , root canal , dentistry , ultimate tensile strength , maxillary central incisor , orthodontics , composite material , medicine , metallurgy
Aim: to evaluate and compare the physical properties of titanium posts and double taper (DT) light posts. Materials and Methods: Sixty posts (30 titanium post and 30 DT light post) were selected and divided into three groups. In Group I: Ten posts of each type were subjected to a three-point bending test. In Group II: 20 posts extracted maxillary central incisors were restored with ten posts of each type and subjected to tensile loading. In Group III: 20 posts extracted maxillary central incisors were restored with ten posts of each type and subjected to compressive loading at an angle of 135°. Results: The results showed that DT light posts were significantly less rigid (P <0.001), more retentive and significantly less resistant to fracture (P <0.001) as compared to titanium posts.Conclusion: It is suggested that although the DT light post system does not completely fulfill the requirements claimed by manufacturer but it would meet the requirements to combat the physiological forces operating in the oral cavity