2010
DOI: 10.4012/dmj.2009-086
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The effect of the elastic modulus of low-viscosity resins on the microleakage of Class V resin composite restorations under occlusal loading

Abstract: This study aimed to evaluate the effectiveness of various intermediate layers on the microleakage of Class V restorations under an occlusal load. Wedge-shaped cavities were prepared on the buccal surface of 72 extracted premolars, which were then treated with an adhesive system (One Up Bond F Plus), divided into three groups, and restored with: 1) Estelite Sigma resin composite, 2) a resin composite with Low Flow flowable composite, or 3) a resin composite with High Flow flowable composite. The specimens were … Show more

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Cited by 47 publications
(44 citation statements)
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“…[33][34][35] In addition, composite resins have an elastic modulus similar to dentine, which may be considered sufficient to offset the stress generated by occlusal forces. 36 Kim et al considered rounding the internal angles of NCCLs, removing sclerotic dentine, and even creating retention with diamond burs to improve the longevity of composite restorations. 16 The wear of sound tooth structure may result in increased pulpal irritation and mechanical pulp exposure, outweighing the benefits associated with this type of management.…”
Section: Discussionmentioning
confidence: 99%
“…[33][34][35] In addition, composite resins have an elastic modulus similar to dentine, which may be considered sufficient to offset the stress generated by occlusal forces. 36 Kim et al considered rounding the internal angles of NCCLs, removing sclerotic dentine, and even creating retention with diamond burs to improve the longevity of composite restorations. 16 The wear of sound tooth structure may result in increased pulpal irritation and mechanical pulp exposure, outweighing the benefits associated with this type of management.…”
Section: Discussionmentioning
confidence: 99%
“…The ratio of the Young's modulus of the thermosetting resin board, epoxy resin, fiber-reinforced PBT resin, industrial fiber-reinforced plastic and magnesium alloy was approximately equivalent to 15 GPa:14 GPa:25 GPa:45 GPa:210 GPa, which is the modular ratio of the dentin 20) , the composite resin 21,22) , the low Young's modulus glass fiber post 23) , the high Young's modulus glass fiber post 24) and the prefabricated stainless steel post 25) (Table 2). The photoelastic method 26) used in this study is an experimental stress analysis technique that uses the induced birefringence effect of the experimental materials.…”
Section: Methodsmentioning
confidence: 99%
“…2 Effect of temperature and condition on G1, n*, E, tan. hand, composites that are too stiff may transmit occlusal stresses to tooth structure resulting in catastrophic failure, while in cervical restorations less viscous and less stiff materials as layers have been proposed 11) . Moreover, elastic modulus is also important during polymerization shrinkage 12) .…”
Section: Discussionmentioning
confidence: 99%