1-year clinical evaluation of One-Step in non-carious cervical lesions

Purpose: To evaluate the 1-year clinical retention rate of restorations of non-carious cervical lesions placed using a "one-bottle" adhesive (One-Step ) and one of two low modulus resin-based composite (RBC) restorative materi als (AEliteflo or Bisco Glaze) or a microfilled RBC (Silux Plus). Materials and Methods: 105 non-carious cervical lesions in 14 patients, mean age 60 years, were restored using either AEliteflo, Bisco Glaze or Silux Plus with One-Step dentin bonding agent. The dentin surface was lightly roughened wi th a fine diamond stone, cleaned with pumice and water and restored accordi ng to the manufacturers' instructions. Patients were recalled at 6 months a nd 1 year, and the restoration sites examined. Results: At 6 months all res torations were present. At 1 year, five restorations were missing (two Silu x, three AEliteflo), three of which were in one patient. A cumulative reten tion rate of 95% was recorded. A small number of restorations exhibited mar ginal discoloration, but this was believed to be due to excess RBC on unetc hed enamel.