Effect of occlusal restoration on stresses around class V restoration interface: A finite-element study.

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dc.contributor.authorVasudeva, Gaurav
dc.contributor.authorBogra, Poonam
dc.contributor.authorNikhil, Vineeta
dc.contributor.authorSingh, Vijay
dc.date.accessioned2012-08-01T08:43:51Z
dc.date.available2012-08-01T08:43:51Z
dc.date.issued2011-03
dc.description.abstractBackground: Causes of failures in class V restorations have always been controversial until now, since the biomechanical aspects of these restorations have been understood. Aims and Objective: This study was aimed to verify the hypothesis that eccentric forces are the cause of cuspal flexure, which lead to excessive stresses at the periphery of a class V restoration, further it identifies the amount of the stress and the flexure increase in the presence of an occlusal restoration using different restorative materials to restore (both cervical and occlusal) along with their comparison with respect to amount of stresses around the cervical restorations. Materials and Methods : The study was done by modeling a mandibular first premolar which was sectioned bucco-lingually, in the NISA, EMRC II finite element software. A 100N eccentric load was applied on the tooth structure and stresses were observed at the peripheries of the class V restoration when it was restored with composite and with glass ionomer cement. The stresses were further analyzed in the presence of occlusal restorations with different materials and configurations. Results: It was seen that the stresses at the gingival wall interface in case of class V glass ionomer cement was more than that for composite. In the presence of an occlusal amalgam restoration, the cuspal flexure was more than that of occlusal composite and the stresses at the class V peripheries were also statistically significant. Conclusion: It was suggested that lower modulus composites can flex with the tooth structure decreasing the bond failure and that the stresses are much lesser when there is absence of an occlusal restoration. Occlusal composite restorations reinforce the tooth structure and reduce the cuspal flexure as compared to silver amalgam.en_US
dc.identifier.citationVasudeva Gaurav, Bogra Poonam, Nikhil Vineeta, Singh Vijay. Effect of occlusal restoration on stresses around class V restoration interface: A finite-element study. Indian Journal of Dental Research. 2011 Mar-Apr; 22(2): 295-302.en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/140007
dc.language.isoenen_US
dc.source.urihttps://www.ijdr.in/article.asp?issn=0970-9290;year=2011;volume=22;issue=2;spage=295;epage=302;aulast=Vasudevaen_US
dc.subjectClass V restoration interfaceen_US
dc.subjectcuspal flexureen_US
dc.subjectfinite-element analysisen_US
dc.subject.meshBicuspid --anatomy & histology
dc.subject.meshBiomechanics
dc.subject.meshBite Force
dc.subject.meshComposite Resins --chemistry
dc.subject.meshComputer Simulation
dc.subject.meshDental Amalgam --chemistry
dc.subject.meshDental Bonding
dc.subject.meshDental Cavity Preparation --classification
dc.subject.meshDental Enamel --anatomy & histology
dc.subject.meshDental Materials --chemistry
dc.subject.meshDental Restoration, Permanent --classification
dc.subject.meshDentin --anatomy & histology
dc.subject.meshElastic Modulus
dc.subject.meshFinite Element Analysis
dc.subject.meshGlass Ionomer Cements --chemistry
dc.subject.meshHumans
dc.subject.meshModels, Biological
dc.subject.meshPliability
dc.subject.meshSoftware
dc.subject.meshStress, Mechanical
dc.subject.meshSurface Properties
dc.subject.meshTooth Crown --anatomy & histology
dc.titleEffect of occlusal restoration on stresses around class V restoration interface: A finite-element study.en_US
dc.typeArticleen_US
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