Document Detail

Analysis of a restored maxillary second premolar tooth by using three-dimensional finite element method.
MedLine Citation:
PMID:  10080314     Owner:  NLM     Status:  MEDLINE    
In the first part of this study some physical properties of restorative materials, amalgam, glass-ionomer and composite resin were measured experimentally. In the second part a numerical study was carried out, for which the maxillary second premolar tooth was used. The tooth model was restored with composite resin and amalgam on glass-ionomer, which was used as the base material. The stress distribution investigated was the resultant of the stresses which come from the mastication force and those resulting from the contraction and expansion of restorative materials. All calculations were carried out using the finite element method and programs were written using FORTRAN 77. A load of 450 N, at an angle of 45 degrees to the longitudinal axis was applied on the occlusal margin of the tooth. The tooth was assumed isotropic, homogenous, elastic and unsymmetrical. The distribution of compressive, tensile and shear stresses were plotted for the whole tooth structure.
M Toparli; N Gökay; T Aksoy
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of oral rehabilitation     Volume:  26     ISSN:  0305-182X     ISO Abbreviation:  J Oral Rehabil     Publication Date:  1999 Feb 
Date Detail:
Created Date:  1999-05-03     Completed Date:  1999-05-03     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0433604     Medline TA:  J Oral Rehabil     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  157-64     Citation Subset:  D; IM    
Department of Metallurgical and Materials Engineering, Faculty of Engineering, Dokuz Eylül University, Bornova, Izmir, Turkey.
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MeSH Terms
Bicuspid / physiology*
Bite Force
Chemistry, Physical
Composite Resins / chemistry
Compressive Strength
Computer Simulation
Dental Amalgam / chemistry
Dental Cavity Lining
Dental Enamel / physiology
Dental Materials / chemistry*
Dental Pulp / physiology
Dental Restoration, Permanent*
Dentin / physiology
Finite Element Analysis*
Glass Ionomer Cements / chemistry
Models, Biological*
Physicochemical Phenomena
Stress, Mechanical
Surface Properties
Tensile Strength
Reg. No./Substance:
0/Composite Resins; 0/Dental Materials; 0/Glass Ionomer Cements; 8049-85-2/Dental Amalgam

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