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Glass Ceramic CAD/CAM crowns and severely altered posterior teeth: a three levels study

  • BIOMATERIALS-TISSUE INTERACTION IN HUMANS
  • Original Research
  • Published:
Journal of Materials Science: Materials in Medicine Aims and scope Submit manuscript

Abstract

For many practitioners, longevity of full glass ceramic crowns in the posterior area, molars and premolars, remains a real challenge. The purpose of this article is to identify and evaluate the parameters that can significantly influence their resistance when preparing a tooth. The analysis proposed in this article relies on interrelated studies conducted at three levels: in vitro (mechanical tests), in silico (finite elements simulations) and in vivo (clinical survival rates). The in vitro and the in silico studies proved that an appropriate variation of the geometric design of the preparations enables to increase up to 80% the mechanical strength of ceramic reconstructions. The in vivo clinical study of CAD/CAM full ceramic crowns was performed in accordance with the principles stated within the in vitro and the in silico studies and provided a 98.97% success rate over a 6 years period. The variations of geometric design parameters for dental preparation allows for reconstructions with a mechanical breaking up to 80% higher than that of a non-appropriate combination. These results are confirmed in clinical practice.

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Author information

Authors and Affiliations

  1. LBN (Laboratoire de Bioingénierie et Nanosciences) EA4203, Univ. Montpellier, Montpellier, France

    Michel Fages, Frederic Cuisinier & Jean-Cédric Durand

  2. C2MA (Materials Center), Ecole des mines d’Alès, Alès, France

    Stephane Corn & Patrick Ienny

  3. LGEI (Laboratory of Industrial Environment Engineering), Ecole des mines d’Alès, Alès, France

    Pierre Slangen

  4. Department of Prosthodontics, Faculty of Odontology, Univ. Montpellier, Montpellier, France

    Jacques Raynal

  5. Department of Oral Biology and Experimental Dental Research, Faculty of Dentistry, University of Szeged, Szeged, Hungary

    Kinga Turzo

Authors
  1. Michel Fages
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  2. Stephane Corn
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  3. Pierre Slangen
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  4. Jacques Raynal
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  5. Patrick Ienny
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  6. Kinga Turzo
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  7. Frederic Cuisinier
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  8. Jean-Cédric Durand
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Correspondence to Jean-Cédric Durand.

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Fages, M., Corn, S., Slangen, P. et al. Glass Ceramic CAD/CAM crowns and severely altered posterior teeth: a three levels study. J Mater Sci: Mater Med 28, 145 (2017). https://doi.org/10.1007/s10856-017-5948-x

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  • DOI: https://doi.org/10.1007/s10856-017-5948-x

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