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Finite element investigation of implant-supported fixed partial prosthesis in the premaxilla in immediately loaded and osseointegrated states

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  • I. Hasan
  • F. Heinemann
  • S. Reimann
  • L. Keilig
  • C. Bourauel

Abstract

The aim of this study was to gain insight into the behaviour of the stresses and strains at the bone–implant interface of an implant-supported fixed partial prosthesis (FPP) in the premaxilla under immediate loading and osseointegrated conditions. Finite element models of a four-unit FPP were generated. An extreme condition was simulated, using only two immediately loaded implants in order to derive recommendations for possible clinical application. Straight and 20°-angled abutments and bonded or sliding contact between the bridge and abutment were simulated. In addition, two models were generated with two completely osseointegrated implants. A 150 N load to the prosthesis at a 45° angle to the long axis of each implant was applied. Minor differences were observed in implant displacements, stress and strain distributions of the two abutment designs. However, bone loading exceeded the physiological limits, including a risk of bone atrophy. A considerable decrease in implant displacements and bone loading was observed in the osseointegrated cases. An FPP supported by only two implants cannot be recommended for immediate loading.

Suggested Citation

  • I. Hasan & F. Heinemann & S. Reimann & L. Keilig & C. Bourauel, 2011. "Finite element investigation of implant-supported fixed partial prosthesis in the premaxilla in immediately loaded and osseointegrated states," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 14(11), pages 979-985.
    • Handle: RePEc:taf:gcmbxx:v:14:y:2011:i:11:p:979-985
    DOI: 10.1080/10255842.2010.503959
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    Cited by:

    1. Eduardo Borie & Eduardo Leal & Iara Augusta Orsi & Carlos Salamanca & Fernando José Dias & Benjamin Weber, 2018. "Influence of transmucosal height in abutments of single and multiple implant-supported prostheses: a non-linear three-dimensional finite element analysis," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 21(1), pages 91-97, January.
    2. Sara C. Neves & Acm Pinho & Jaime C. Fonseca & Nuno F. Rodrigues & Tiago Henriques-Coelho & Jorge Correia-Pinto & João L. Vilaça, 2015. "Finite element analysis of surgical correction via a minimally invasive approach," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 18(7), pages 711-720, May.

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