International Journal of Prosthodontics and Restorative Dentistry

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VOLUME 11 , ISSUE 4 ( October-December, 2021 ) > List of Articles


A Comparative Evaluation of Fracture Strength of Natural Tooth Pontic Reinforced with Polyethylene-fiber Post vs Glass-fiber Post: An In Vitro Study

Vatsal Chauhan, Anjali Sharma, Pankaj Mishra, Santosh Singh, Anu Narang

Keywords : Interlig reinforcement fiber, Natural tooth pontic, Ribbond fiber, Splint material

Citation Information : Chauhan V, Sharma A, Mishra P, Singh S, Narang A. A Comparative Evaluation of Fracture Strength of Natural Tooth Pontic Reinforced with Polyethylene-fiber Post vs Glass-fiber Post: An In Vitro Study. Int J Prosthodont Restor Dent 2021; 11 (4):178-182.

DOI: 10.5005/jp-journals-10019-1346

License: CC BY-NC 4.0

Published Online: 04-04-2022

Copyright Statement:  Copyright © 2021; The Author(s).


Aim and objective: The purpose of this study was to evaluate and compare the fracture strength of natural tooth pontic reinforced with polyethylene-fiber post vs glass-fiber post. One of the most conservative solutions for the replacement of missing anterior tooth can be using patient's own tooth as a pontic. As no laboratory procedures are required, it is well suited for patients who need an immediate replacement of tooth in esthetic zone. Materials and methods: Twenty polymethyl methacrylate (PMMA) resin blocks were prepared. Two abutment teeth were embedded in each PMMA resin block. Twenty central incisors were sectioned at the level of cementoenamel junction using a diamond-cutting disk with water coolant and used as pontics. The samples were divided into two groups at random; group A—polyethylene (Ribbond) fiber post (n = 10) used to strengthen pontics and group B—glass (Interlig) reinforcement fiber post (n = 10) used to strengthen the pontics. The fracture strength of the samples was tested in universal testing machine. Student's t-test was done for statistical analysis to find the difference between two groups. Results: The mean fracture strength of polyethylene (Ribbond) fiber post was 56.7 ± 13.0 MPa and glass (Interlig) reinforcement fiber post was 38.56 ± 8.68 MPa. A significant difference was observed between mean fracture strength of polyethylene (Ribbond) fiber post and glass (Interlig) reinforcement fiber post (p-value = 0.002). Conclusion: Both the fiber reinforced splint materials are effective in stabilizing the natural tooth pontic. Ribbond fiber, a polyethylene fiber post, had better fracture strength than Interlig glass fiber post and can be used effectively for stabilization of the natural tooth pontic.

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