title: Restorative treatment of cervical lesions with resin composites: 4-year results.
abstract: OBJECTIVE
  To verify the clinical behavior of two resin-based composites with different Young's modulus (AElite Fil and Elite Flo) in the restoration of carious and non-carious cervical lesions after 48 months of clinical service.
  
  
  METHODS
  116 restorations with the two different materials (60 with AElite Fil and 56 with AElite Flo) were performed in 15 patients and controlled for 48 months. Retention rate and USPHS criteria were recorded at 6, 12, 24, 36 and 48 months.
  
  
  RESULTS
  The retention rate was 66% for AElite Fil in carious and non-carious lesions and 65 and 47% for AElite Flo in carious and non-carious lesions respectively at 48 months. A decrease of quality of restorations in time was recorded with all USPHS criteria, with no statistically significant difference between materials tested.
authors.affiliation: Section of Endodontics and Restorative Dentistry, Dental Clinic, Department of Medicine, Surgery and Dentistry, Hospital San Paolo Milano, University of Milan, Via Beldiletto 1/3, 20142 Milan, Italy.
authors.forename: Mauro
authors.initials: M
authors.lastname: Belluz
authors.forename: Monica
authors.initials: M
authors.lastname: Pedrocca
authors.forename: Massimo
authors.initials: M
authors.lastname: Gagliani
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D000328:Adult; D000368:Aged; D003188:Composite Resins / Q000737:chemistry*; D003731:Dental Caries / Q000628:therapy; D017268:Dental Prosthesis Retention / Q000379:methods*; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent / Q000379:methods*; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D011140:Polyurethanes / Q000737:chemistry*; D018709:Statistics, Nonparametric; D016019:Survival Analysis; D013997:Time Factors
chemical_list: D000180:Acrylic Resins; C029012:Composite Dental Resin; D003188:Composite Resins; D011140:Polyurethanes