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ORIGINAL RESEARCH Table of Contents   
Year : 2012  |  Volume : 23  |  Issue : 6  |  Page : 840-841
Three-dimensional finite element analysis of immediate loading mini over denture implants with and without acrylonitrile O-ring


1 Department of Prosthodontics, Indira Gandhi Institue of Dental Sciences, Pondicherry, India
2 Department of Prosthodontics, Anoor Dental Collage, Kerala, India
3 Department of Prosthodontics, M.E.S Dental College, Kerala, India

Correspondence Address:
Srinivasan Jayaraman
Department of Prosthodontics, Indira Gandhi Institue of Dental Sciences, Pondicherry
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-9290.111285

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Aim of the study : The aim of the study was to check the stress absorbed by the bone around mini over-denture dental implant with and without acrylonitrile O-ring under two different loading conditions. The initial stress absorbed by the implant plays a significant role in the success of the immediate loading implants. Materials and Methods: A three-dimensional finite element analysis using Pro-E mechanica finite element software was used to check the stress absorbed by the bone with and without acrylonitrile O-ring. The implant and the mandible where modeled from the data obtained from C.T. scan and optical projector using reverse engineering process. Two different loading conditions of 80 N and 220 N were determined and the analysis was done. Results: The result showed at lower loads (80 N), there was not much difference in the stress absorbed by the cancellous bone with or without acrylonitrile O-ring, but at higher loads (220), there was difference in the stress absorbed by the cancellous bone with (0.03508 Mpa) and without acrylonitrile O-ring (3.874 Mpa) which showed that significant stress was absorbed by the acrylonitrile O- ring. Conclusion: This study proves that higher loads during parafunctional movement were absorbed by the acrylonitrile O-ring increasing the success of the implants.


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