title: Clinical Effect of Dental Adhesive on Marginal Integrity in Class I And Class II Resin-Composite Restorations.
abstract: Dental adhesives are believed to influence marginal adaptation and marginal discoloration when used under posterior resin-based composite restorations. Studies on the latest adhesive systems reveal that the group of the three-step etch-and-rinse adhesive (3-E&RA) and the one-step self-etch adhesive (1-SEA) have entirely different bonding mechanisms, as well as different bond strength and resistance to chemical, thermal and mechanical factors.
  
  
  
  A hypothesis that a 1-SEA would result in greater enamel marginal discoloration and poorer marginal adaptation than a 3-E&RA was tested.
  
  
  
  One hundred restorations were placed with a 1-SEA and 100 restorations with a 3-E&RA. Teeth were restored with Filtek Supreme nanofilled resin-composite and were evaluated for marginal adaptation and marginal discoloration at baseline, and 6 months, 12 months, and 36 months postoperatively.
  
  
  
  The statistical analysis revealed significant differences in marginal integrity between test groups. The 1-SEA resulted in greater enamel marginal discoloration and poorer marginal adaptation than the 3-E&RA at any recall time.
  
  
  
  Marginal adaptation and marginal discoloration depend on the type of dentin adhesive used. The restorations with Filtek Supreme and Scotchbond MP are better than the restorations with Adper Prompt L-Pop with regard to the marginal adaptation and marginal discoloration at 6-, 12- and 36-month evaluations.
authors.affiliation: Department of Operative Dentistry and Endodontics, Faculty of Dental Medicine, Medical University, Plovdiv
authors.forename: Neshka A
authors.initials: NA
authors.lastname: Manchorova-Veleva
authors.affiliation: Department of Operative Dentistry and Endodontics, Faculty of Dental Medicine, Medical University, Plovdiv
authors.forename: Stoyan B
authors.initials: SB
authors.lastname: Vladimirov
authors.affiliation: Department of Applied and Institutional Sociology, Faculty of Philosophy and History, Paisii Hilendarski University, Plovdiv, Bulgaria
authors.forename: Donka А
authors.initials: DА
authors.lastname: Keskinova
mesh_terms: D000328:Adult; D003188:Composite Resins / Q000627:therapeutic use*; D003738:Dental Cements / Q000627:therapeutic use*; D003793:Dental Restoration, Permanent / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000453:epidemiology*; D014075:Tooth Discoloration / Q000453:epidemiology*; D055815:Young Adult
chemical_list: D003188:Composite Resins; D003738:Dental Cements