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Conference Paper: Sealing Ability of Direct Adhesive Restorations in Posterior Teeth

TitleSealing Ability of Direct Adhesive Restorations in Posterior Teeth
Authors
KeywordsComposites
Dentin permeability and Glass ionomers
Issue Date2013
PublisherSage Publications, Inc.. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925
Citation
The 91st General Session General Session & Exhibition of the International Association for Dental Research (IADR), Seattle, Washington, USA, 20-23 March 2013. In Journal of Dental Research, 2013, v. 92, Special Issue A, abstract no. 276 How to Cite?
AbstractContraction stress at the bonding interfaces may occur as a result of polymerisation shrinkage of resin composite. This may affect the restorative seal. Observing the fluid flow within dentine can be used to assess the seal of a restoration. Objectives: The aim of this study was to investigate effects on the restoration-dentinal seal using different placement methods with various direct adhesive systems and restorative materials. Methods: Mesio-occluso-distal cavities were prepared on extracted third molars (n=42). Prepared teeth were divided into 6 groups and restored with either: Sonic activated bulk-fill resin composite, SonicFill™; Conventional nano-hybrid resin composite, Herculite® Ultra; Herculite® Ultra with a resin-modified glass-ionomer cement (RMGIC) base, Riva light-cure HV; Herculite® Ultra with a glass-ionomer cement (GIC) base, Riva self-cure HV; Conventional nano-hybrid resin composite, Filtek™ Supreme XTE with selective enamel etch-and-rinse adhesive, and; Filtek™ Supreme XTE with no separate etch-and-rinse step. Either a two-step self-etch bonding system, Optibond XTR and a one-step bonding system, Scotchbond Universal Adhesive was used. Using an automated flow-recording device, fluid flow was assessed before, during, and at periods after restoration, at 24-hours, 1-week, 1-month and 4-months. Fluid flow rates of the different restorative procedures, and post-restoration time intervals were analysed using ANOVA. The changes in flow rates between the different restorations were compared using Tukey’s test (p<0.05). Results: There were no statistically significant differences in the mean percentage change in fluid flow rates between the restorative procedures after placement of the bonding agent, with or without a base. Immediately post-restoration, all test groups had increased fluid flow rates compared with baseline values. Conclusion: None of the different adhesive restorative materials were able to provide a complete seal to prevent fluid movement. Placement of RMGIC/GIC base produces a restorative seal that is comparable to that of teeth restored with only resin composite. Student Presenter This abstract is based on research that was funded entirely or partially by an outside source: NHMRC grant ID: 1039604
DescriptionOral Session: Composites and Adhesion
Persistent Identifierhttp://hdl.handle.net/10722/186509
ISSN
2015 Impact Factor: 4.602
2015 SCImago Journal Rankings: 1.714

 

DC FieldValueLanguage
dc.contributor.authorNguyen, Ken_US
dc.contributor.authorWong, Ren_US
dc.contributor.authorPalamara, Jen_US
dc.contributor.authorBurrow, MFen_US
dc.date.accessioned2013-08-20T12:12:10Z-
dc.date.available2013-08-20T12:12:10Z-
dc.date.issued2013en_US
dc.identifier.citationThe 91st General Session General Session & Exhibition of the International Association for Dental Research (IADR), Seattle, Washington, USA, 20-23 March 2013. In Journal of Dental Research, 2013, v. 92, Special Issue A, abstract no. 276en_US
dc.identifier.issn0022-0345-
dc.identifier.urihttp://hdl.handle.net/10722/186509-
dc.descriptionOral Session: Composites and Adhesion-
dc.description.abstractContraction stress at the bonding interfaces may occur as a result of polymerisation shrinkage of resin composite. This may affect the restorative seal. Observing the fluid flow within dentine can be used to assess the seal of a restoration. Objectives: The aim of this study was to investigate effects on the restoration-dentinal seal using different placement methods with various direct adhesive systems and restorative materials. Methods: Mesio-occluso-distal cavities were prepared on extracted third molars (n=42). Prepared teeth were divided into 6 groups and restored with either: Sonic activated bulk-fill resin composite, SonicFill™; Conventional nano-hybrid resin composite, Herculite® Ultra; Herculite® Ultra with a resin-modified glass-ionomer cement (RMGIC) base, Riva light-cure HV; Herculite® Ultra with a glass-ionomer cement (GIC) base, Riva self-cure HV; Conventional nano-hybrid resin composite, Filtek™ Supreme XTE with selective enamel etch-and-rinse adhesive, and; Filtek™ Supreme XTE with no separate etch-and-rinse step. Either a two-step self-etch bonding system, Optibond XTR and a one-step bonding system, Scotchbond Universal Adhesive was used. Using an automated flow-recording device, fluid flow was assessed before, during, and at periods after restoration, at 24-hours, 1-week, 1-month and 4-months. Fluid flow rates of the different restorative procedures, and post-restoration time intervals were analysed using ANOVA. The changes in flow rates between the different restorations were compared using Tukey’s test (p<0.05). Results: There were no statistically significant differences in the mean percentage change in fluid flow rates between the restorative procedures after placement of the bonding agent, with or without a base. Immediately post-restoration, all test groups had increased fluid flow rates compared with baseline values. Conclusion: None of the different adhesive restorative materials were able to provide a complete seal to prevent fluid movement. Placement of RMGIC/GIC base produces a restorative seal that is comparable to that of teeth restored with only resin composite. Student Presenter This abstract is based on research that was funded entirely or partially by an outside source: NHMRC grant ID: 1039604-
dc.languageengen_US
dc.publisherSage Publications, Inc.. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925-
dc.relation.ispartofJournal of Dental Researchen_US
dc.rightsJournal of Dental Research. Copyright © Sage Publications, Inc..-
dc.subjectComposites-
dc.subjectDentin permeability and Glass ionomers-
dc.titleSealing Ability of Direct Adhesive Restorations in Posterior Teethen_US
dc.typeConference_Paperen_US
dc.identifier.emailBurrow, MF: mfburr58@hku.hken_US
dc.identifier.authorityBurrow, MF=rp01306en_US
dc.identifier.hkuros216887en_US
dc.identifier.volume92-
dc.identifier.issueSpecial Issue A-
dc.publisher.placeUnited States-

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