Transient thermal and stress analysis of maxillary second premolar tooth using an exact three-dimensional model.

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dc.contributor.authorHashemipour, Maryam Alsadat
dc.contributor.authorMohammadpour, Ali
dc.contributor.authorNassab, Seiied Abdolreza Gandjalikhan
dc.date.accessioned2012-07-26T03:45:01Z
dc.date.available2012-07-26T03:45:01Z
dc.date.issued2010-04
dc.description.abstractAim : In this paper, the temperature and stress distributions in an exact 3D-model of a restored maxillary second premolar tooth are obtained with finite element approach. Objective : The carious teeth need to restore with appropriate restorative materials. There are too many restorative materials which can be used instead of tooth structures; since tooth structures are being replaced, the restorative materials should be similar to original structure as could as possible . Materials and Methods : In the present study, a Mesial Occlusal Distal (MOD) type of restoration is chosen and applied to a sound tooth model. Four cases of restoration are investigated: two cases in which base are used under restorative materials and two cases in which base is deleted. The restorative materials are amalgam and composite and glass-inomer is used as a base material. Modeling is done in the solid works ambient by means of an exact measuring of a typical human tooth dimensions. Tooth behavior under thermal load due to consuming hot liquids is analyzed by means of a three dimensional finite element method using ANSYS software. The highest values of tensile and compressive stresses are compared with tensile and compressive strength of the tooth and restorative materials and the value of shear stress on the tooth and restoration junctions is compared with the bond strength. Also, sound tooth under the same thermal load is analyzed and the results are compared with those obtained for restored models. Results : Temperature and stress distributions in the tooth are calculated for each case, with a special consideration in the vicinity of pulp and restoration region. Numerical results show that in two cases with amalgam, using the base material (Glass-ionomer) under the restorative material causes to decrease the maximum temperature in the restorative teeth . In the stress analysis, it is seen that the principal stress has its maximum values in composite restorations. Conclusion : The maximum temperatures are found in the restoration case of amalgam without base. Besides, it is found that restoration has not any influence on the stress values at DEJ, such that for all cases, these values are close to sound tooth results.en_US
dc.identifier.citationHashemipour Maryam Alsadat, Mohammadpour Ali, Nassab Seiied Abdolreza Gandjalikhan. Transient thermal and stress analysis of maxillary second premolar tooth using an exact three-dimensional model. Indian Journal of Dental Research. 2010 Apr-Jun; 21(2): 158-164.en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/139841
dc.language.isoenen_US
dc.source.urihttps://www.ijdr.in/article.asp?issn=0970-9290;year=2010;volume=21;issue=2;spage=158;epage=164;aulast=Hashemipouren_US
dc.subjectFinite elementen_US
dc.subjectmaxillary second premolaren_US
dc.subjectthermal and stress analysisen_US
dc.subject.meshBicuspid --physiology
dc.subject.meshBody Temperature
dc.subject.meshComposite Resins
dc.subject.meshCompressive Strength
dc.subject.meshDental Amalgam
dc.subject.meshDental Pulp --physiology
dc.subject.meshDental Restoration, Permanent --methods
dc.subject.meshDental Stress Analysis --methods
dc.subject.meshFinite Element Analysis
dc.subject.meshGlass Ionomer Cements
dc.subject.meshHumans
dc.subject.meshImaging, Three-Dimensional
dc.subject.meshMaxilla
dc.subject.meshModels, Biological
dc.subject.meshShear Strength
dc.subject.meshTensile Strength
dc.subject.meshThermal Conductivity
dc.subject.meshThermal Diffusion
dc.titleTransient thermal and stress analysis of maxillary second premolar tooth using an exact three-dimensional model.en_US
dc.typeArticleen_US
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