Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2012 Apr;15(2):183-6.
doi: 10.4103/0972-0707.94583.

An ex vivo comparative study on the retention of custom and prefabricated posts

Abhinav Singh  1 , Ajay Logani, Naseem Shah
Affiliations

An ex vivo comparative study on the retention of custom and prefabricated posts

Abhinav Singh et al. J Conserv Dent. 2012 Apr.

Abstract

Aim: This study was designed to comparatively evaluate the effect of cyclic loading on the retention of custom-fabricated fiber-reinforced composite (CF-FRC), prefabricated metal, and glass fiber posts.

Materials and methods: Thirty mandibular first premolars decoronated at the CE junction were divided into three groups (n=10). Groups A, B, and C were restored using Para Post (Whale dent), Reforpost (Angelus), and CF-FRC post (Ribbond-THM), respectively. Five specimens from each group were subjected to cyclic loading. Tensile bond strength (TBS) was evaluated.

Results: Pre-loading TBS values were statistically, significantly higher for all posts (P<0.05). Before and after loading, there was a significant difference between group C as compared to groups A and B.

Conclusions: Cyclic loading reduced the retention of all posts but was comparatively lesser for the CF-FRC post. This system provides sufficient retention required for clinical success.

Keywords: Fiber-reinforced composite post; post; retention; tensile bond strength.

PubMed Disclaimer

Conflict of interest statement

Conflict of Interest: None declared.

References

    1. Kimmel SS. Restoration and reinforcement of endodontically treated teeth with a polyethylene ribbon and prefabricated fiberglass post. Gen Dent. 2000;48:700–6. - PubMed
    1. Eskitascioglu G, Belli S, Kalkan M. Evaluation of two post core systems using two different methods (fracture strength test and a finite elemental stress analysis) J Endod. 2002;28:629–33. - PubMed
    1. Cornier CJ, Burns DR, Moon P. In vitro comparison of the fracture resistance and failure mode of fiber, ceramic and conventional post systems at various stages of restorations. J Prosthodont. 2002;10:26–36. - PubMed
    1. Terry DA, Triolo PT, Jr, Swift EJ., Jr Fabrication of direct fiber-reinforced posts: A structural design concept. J Esthet Restor Dent. 2001;13:228–40. - PubMed
    1. Karna JC. A fiber composite laminate endodontic post and core. Am J Dent. 1996;9:230–2. - PubMed