title: Two-Year Clinical Evaluation of a Nanofilled Etch-and-Rinse and a Self-Etch Adhesive System Containing MDPB and Fluoride in Non-carious Cervical Lesions.
abstract: OBJECTIVE
  The aim of this clinical study was to evaluate the performance of restorations for non-carious cervical lesions performed with a two-step etch-and-rinse or with a two-step self-etch adhesive.
  
  
  METHODS
  The teeth to be restored (15 patients, N = 90 restorations) were randomly assigned into 3 groups (n = 30), according to the adhesive system: group 1 (G1): Peak LC Bond; group 2 (G2): Clearfil Protect Bond; and group 3 (G3): prior selective acid etching of the enamel margins before bonding with Clearfil Protect Bond. The NCCLs were restored with Amelogen Plus composite resin. Two calibrated examiners evaluated the restorations using modified US Public Health Service criteria. The data of retention, marginal integrity, and marginal discoloration were analyzed using the Kruskal-Wallis and Wilcoxon tests.
  
  
  RESULTS
  There were no significant differences in clinical performance among the groups for the variables: retention, marginal integrity, and marginal discoloration after 1 year and 2 years. The alpha rates after 2 years were: 93.3% for G1 and 96.7% for G2 and G3 for retention; 93.3%, 100%, and 90% for G1, G2, and G3 for marginal discoloration; 86.7%, 96.7%, and 90% for G1, G2, and G3 for marginal integrity, respectively.
  
  
  CONCLUSIONS
  The adhesives presented similar clinical performance at the end of 2 years. Also, the prior etching with phosphoric acid did not significantly improve the clinical performance of self-etch adhesive.
authors.affiliation: Professor, Department of Restorative Dentistry, UNESP - Univ Estadual Paulista, Araçatuba Dental School, Araçatuba, São Paulo, Brazil.
authors.forename: Fernanda Garcia
authors.initials: FG
authors.lastname: de Oliveira
authors.affiliation: Professor, Department of Restorative Dentistry, UNESP - University Estadual Paulista, Araçatuba Dental School, Araçatuba, São Paulo, Brazil.
authors.forename: Lucas Silveira
authors.initials: LS
authors.lastname: Machado
authors.affiliation: PhD candidate, Department of Restorative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry - University of São Paulo, Bauru, São Paulo, Brazil.
authors.forename: Daniel
authors.initials: D
authors.lastname: Sundfeld-Neto
authors.affiliation: Professor, Department of Restorative Dentistry, UNICAMP - University of Campinas Piracicaba Dental School, Piracicaba, São Paulo, Brazil.
authors.forename: Marcelo
authors.initials: M
authors.lastname: Giannini
authors.affiliation: Professor, Department of Restorative Dentistry, UNESP - Univ Estadual Paulista, Araçatuba Dental School, Araçatuba, São Paulo, Brazil.
authors.forename: André Luiz Fraga
authors.initials: AL
authors.lastname: Briso
authors.affiliation: Professor, Department of Dental Materials and Prosthodontics, UNESP - Univ Estadual Paulista, Araçatuba Dental School, Araçatuba, São Paulo, Brazil.
authors.forename: Paulo Henrique
authors.initials: PH
authors.lastname: Dos Santos
authors.affiliation: Professor, Department of Pediatric and Community Dentistry, UNESP - Univ Estadual Paulista, Araçatuba Dental School, Araçatuba, São Paulo, Brazil.
authors.forename: Maria Lúcia Marçal Mazza
authors.initials: ML
authors.lastname: Sundefeld
authors.affiliation: Department of Restorative Dentistry, UNESP - Univ Estadual Paulista, Araçatuba Dental School, Araçatuba, São Paulo, Brazil.
authors.forename: Renato Herman
authors.initials: RH
authors.lastname: Sundfeld
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods*; D000328:Adult; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D003737:Dental Cavity Preparation / Q000379:methods*; D018772:Dental Marginal Adaptation; D003764:Dental Materials / Q000737:chemistry; D003793:Dental Restoration, Permanent / Q000379:methods*; D017220:Dentin-Bonding Agents / Q000737:chemistry; D005260:Female; D005459:Fluorides / Q000737:chemistry; D006801:Humans; D055115:Light-Curing of Dental Adhesives; D008297:Male; D008422:Materials Testing; D008875:Middle Aged; D011726:Pyridinium Compounds; D013499:Surface Properties; D016896:Treatment Outcome
chemical_list: C503075:Clearfil Protect Bond; D003188:Composite Resins; D003764:Dental Materials; D017220:Dentin-Bonding Agents; D011726:Pyridinium Compounds; C089392:methacryloyloxydodecylpyridinium bromide; D005459:Fluorides