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Durability of a low shrinkage TEGDMA/HEMA-free resin composite system in Class II restorations: A 6-year follow up
Umeå University, Faculty of Medicine, Department of Odontology.
2017 (English)In: Dental Materials, ISSN 0109-5641, E-ISSN 1879-0097, Vol. 33, no 8, 944-953 p.Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: The objective of this randomized controlled prospective trial was to evaluate the durability of a low shrinkage and TEGDMA/HEMA-free resin composite system in posterior restorations in a 6-year follow up.

METHODS: 139 Class II restorations were placed in 67 patients with a mean age of 53 years (range 29-82). Each participant received at random two, as similar as possible, Class II restorations. In the first cavity of each pair the TEGDMA/HEMA-free resin composite system was placed with its 3-step etch-and-rinse adhesive (cmf-els). In the second cavity a 1-step HEMA-free self-etch adhesive was used (AdheSe One F). The restorations were evaluated using slightly modified USPHS criteria at baseline and then yearly during 6 years. Caries risk and parafunctional habits of the participants were estimated.

RESULTS: Three molar teeth showed mild post-operative sensitivity during 3 weeks for temperature changes and occlusal forces. After 6 years, 134 Class II restorations were evaluated. Twenty-one restorations, 8 cmf-els (11.4%) and 13 ASE-els (20%) failed during the 6 years (p<0.0001). The annual failure rates were 1.9% and 3.3%, respectively. The main reasons for failure were fracture followed by recurrent caries. Most fractures and all caries lesions were found in high risk participants.

SIGNIFICANCE: The Class II resin composite restorations performed with the new TEGDMA/HEMA-free low shrinkage resin composite system showed good durability over six years.

Place, publisher, year, edition, pages
2017. Vol. 33, no 8, 944-953 p.
Keyword [en]
Adhesive, Clinical, HEMA, Low shrinkage, Posterior, Resin composite, TEGDMA
National Category
Dentistry
Identifiers
URN: urn:nbn:se:umu:diva-135995DOI: 10.1016/j.dental.2017.04.021ISI: 000405360900011PubMedID: 28545657OAI: oai:DiVA.org:umu-135995DiVA: diva2:1108007
Available from: 2017-06-12 Created: 2017-06-12 Last updated: 2017-08-18Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
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  • de-DE
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