title: Clinical performance of a nanofilled resin composite with and without an intermediary layer of flowable composite: a 2-year evaluation.
abstract: The objective of this prospective clinical follow-up was to evaluate the 2-year clinical performance of a nanofilled resin composite in class II restorations. The restorations were made with and without intermediary layer of a nanofilled flowable resin composite studied in an intraindividual comparison. Each participant received at least two, as similar as possible, class II restorations of the nanofilled resin composite. One restoration of each pair (54) was chosen at random to be restored with an intermediary layer with flowable nanofilled resin composite. The other was restored without. The restorations were evaluated with slightly modified US Public Health Services criteria at baseline, 1, and 2 years. Ninety-two restorations, 46 pairs, were evaluated at 2 years. A prediction of the caries risk showed that 22 of the evaluated 48 patients were considered as high-risk patients. Two failures were observed, one in each group, resulting in a 2.2% failure rate. No statistical difference was seen between the restorations restored with and without layer of flowable resin composite. The nanofilled resin composite showed very good surface characteristics and color match, which did not change significantly during the follow-up period. The nanofilled resin composite showed a good clinical performance with a 2.2% failure rate after 2 years. No differences were observed between the restorations with and without the nanofilled flowable resin intermediary layer.
authors.affiliation: Public Dental Health Service Strömsund, Amaliagatan 2d, 83335, Strömsund, Sweden. sebastian.stefanski@jll.se
authors.forename: Sebastian
authors.initials: S
authors.lastname: Stefanski
authors.forename: Jan W V
authors.initials: JW
authors.lastname: van Dijken
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003116:Color; D003188:Composite Resins / Q000737:chemistry*; D003731:Dental Caries / Q000209:etiology; D003733:Dental Caries Susceptibility; D018772:Dental Marginal Adaptation; D003764:Dental Materials / Q000737:chemistry*; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent / Q000145:classification; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D053761:Nanocomposites / Q000737:chemistry*; D011446:Prospective Studies; D019279:Resin Cements / Q000737:chemistry; D013499:Surface Properties; D055815:Young Adult
chemical_list: D003188:Composite Resins; D003764:Dental Materials; C467913:Filtek Flow; C474035:Filtek Supreme; D019279:Resin Cements; C111840:flowable hybrid composite; C041330:Scotchbond