Durability of a low shrinkage TEGDMA/HEMA-free resin composite system in Class II restorations: A 6-year follow up
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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.
Material and 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%, respectivelly. 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 tested Class II resin composite restorations performed with the new TEGDMA/HEMA-free low shrinkage resin composite system showed good durability over six years.
Original language | English |
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Journal | Dental Materials |
Volume | 33 |
Issue number | 8 |
Pages (from-to) | 944-953 |
Number of pages | 10 |
ISSN | 0109-5641 |
DOIs | |
Publication status | Published - 2017 |
- Faculty of Health and Medical Sciences
Research areas
ID: 173528694