Influence of buccal cusp reduction when using porcelain laminate veneers in premolars. A comparative study using 3-D finite element analysis

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorArchangelo, Carlos Marcelo
dc.creatorRocha, Eduardo Passos
dc.creatorAnchieta, Rodolfo Bruniera
dc.creatorMartin, Manoel
dc.creatorFreitas, Amilcar Chagas
dc.creatorKo, Ching-Chang
dc.creatorCattaneo, Paolo M.
dc.date2014-05-27T11:26:01Z
dc.date2016-10-25T18:34:43Z
dc.date2014-05-27T11:26:01Z
dc.date2016-10-25T18:34:43Z
dc.date2011-10-01
dc.date.accessioned2017-04-06T01:52:38Z
dc.date.available2017-04-06T01:52:38Z
dc.identifierJournal of Prosthodontic Research, v. 55, n. 4, p. 221-227, 2011.
dc.identifier1883-1958
dc.identifierhttp://hdl.handle.net/11449/72701
dc.identifierhttp://acervodigital.unesp.br/handle/11449/72701
dc.identifier10.1016/j.jpor.2011.02.005
dc.identifier2-s2.0-80054121707.pdf
dc.identifier2-s2.0-80054121707
dc.identifierhttp://dx.doi.org/10.1016/j.jpor.2011.02.005
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/893549
dc.descriptionObjectives: Based on a maxillary premolar restored with laminate veneer and using the 3-D finite element analysis (FEA) and mCT data, the aim of this study was to evaluate the influence of different types of buccal cusp reduction on the stress distribution in the porcelain laminate veneer and in the resin luting cement layer. Methods: Two 3-D FEA models (M) of a maxillary premolar were built from mCT data. The buccal cusp reduction followed two configurations: Mt-buccal cusp completely covered by porcelain laminate veneer; and Mp-buccal cusp partially covered by porcelain laminate veneer. The loading (150 N in 458) was performed on the top of the buccal cusp. The finite element software (Ansys Workbench 10.0) was used to obtain the maximum shear stress (σmax) and maximum principal stress (σmax). Results: The Mp showed reduced the stress (σmax) in porcelain laminate veneer (from-2.3 to 24.5 MPa) in comparison with Mt (from-5.3 to 27.4 MPa). The difference between the peak and lower stress values of σmax in Mp (-6.8 to 26.7 MPa) and Mt (-5.3 to 27.4 MPa) was similar for the resin luting cement layer. The structures not exceeded the ultimate tensile strength or the shear bond strength. Conclusions: Cusp reduction did not affect significant increase in σmax and τmax. The Mt showed better stress distribution (τmax) than Mp. © 2011 Published by Elsevier Ireland on behalf of Japan Prosthodontic Society.
dc.languageeng
dc.relationJournal of Prosthodontic Research
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectDental ceramics
dc.subjectFinite element analysis
dc.subjectLaminate veneers
dc.subjectNumerical analyses
dc.subjectresin cement
dc.subjectcomparative study
dc.subjectdental bonding
dc.subjectdental procedure
dc.subjectdenture
dc.subjectfinite element analysis
dc.subjecthuman
dc.subjectmechanical stress
dc.subjectphysiology
dc.subjectpremolar tooth
dc.subjecttensile strength
dc.subjecttooth prosthesis
dc.subjectBicuspid
dc.subjectDental Bonding
dc.subjectDental Porcelain
dc.subjectDental Stress Analysis
dc.subjectDental Veneers
dc.subjectFinite Element Analysis
dc.subjectHumans
dc.subjectResin Cements
dc.subjectStress, Mechanical
dc.subjectTensile Strength
dc.titleInfluence of buccal cusp reduction when using porcelain laminate veneers in premolars. A comparative study using 3-D finite element analysis
dc.typeOtro


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