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3D finite element analysis on esthetic indirect dental restorations under thermal and mechanical loading.

Thermo-mechanical finite element analyses in 3-D models are described for determination of the stress levels due to thermal and mechanical loads in a healthy and restored tooth. Transient thermo-mechanical analysis simulating the ingestion of cold and hot drinks was performed to determine the temper...

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Published in:Medical & Biological Engineering & Computing Vol. 48; no. 11; pp. 1107 - 1114
Main Authors: Cornacchia TP, Las Casas EB, Cimini CA Jr, Peixoto RG, Cornacchia, Tulimar P M, Las Casas, Estevam B, Cimini, Carlos Alberto Jr, Peixoto, Rodrigo G
Format: Journal Article
Published: Springer Nature Nov2010
Online Access:View this record in EBSCOhost
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      jtl: Medical & Biological Engineering & Computing
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      dt: Nov2010
      vid: 48
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      pub: Springer Nature
      place: New York, New York
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        10.1007/s11517-010-0661-7
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        atl: 3D finite element analysis on esthetic indirect dental restorations under thermal and mechanical loading.
      aug:
        au:
          Cornacchia TP
          Las Casas EB
          Cimini CA Jr
          Peixoto RG
          Cornacchia, Tulimar P M
          Las Casas, Estevam B
          Cimini, Carlos Alberto Jr
          Peixoto, Rodrigo G
        affil: Department of Restoration Dentistry, Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Pampulha, Belo Horizonte, MG, 31270-901, Brazil
      sug:
        subj:
          Dental Models
          Heat
          Inlays Standards
          Molar Physiopathology
          Stress, Mechanical
          Body Temperature Regulation
          Dental Materials
          Dentistry Methods
          Aesthetics, Dental
          Finite Element Analysis
          Molar Surgery
      ab: Thermo-mechanical finite element analyses in 3-D models are described for determination of the stress levels due to thermal and mechanical loads in a healthy and restored tooth. Transient thermo-mechanical analysis simulating the ingestion of cold and hot drinks was performed to determine the temperature distribution in the models of the teeth, followed by linear elastic stress analyses. The thermal loads were applied on the occlusal and lingual surfaces. Subsequently, coupled variation of the temperature and mastication loading was considered. The vertical loading was distributed at occlusal points, adding up to 180 N. Maximum stresses were verified in resin restoration under thermal loads. When studying coupled effect of mechanical loading with that arising from thermal effects, higher tensile stress values occurred in porcelain restorations, especially at the restoration-dentin interface. Regions of high tensile stress were detected and their possible clinical significance with respect to restoration damage and microleakage were discussed.
      pubtype: Academic Journal
      doctype: Journal Article
      ougenre: Article
    language: English
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