title: Coronally positioned flap for treatment of restored root surfaces: a 6-month clinical evaluation.
abstract: BACKGROUND
  The aim of this study was to evaluate clinically the treatment of gingival recession associated with non-carious cervical lesions (NCCLs) by resin modified glass ionomer cement (RMGI) or microfilled resin composite (MRC) and coronally positioned flap (CPF) at 6 months following surgery.
  
  
  METHODS
  Fifty-nine patients were assigned to one of three treatments: root exposure without NCCL treated with CPF (group 1); root exposure with NCCL treated with RMGI restoration plus CPF (group 2); or root exposure with NCCL treated with MRC restoration plus CPF (group 3). Clinical measurements that were assessed at baseline and at 3 and 6 months after surgery included plaque index (PI), bleeding on probing (BOP); probing depth (PD), recession reduction (RR), clinical attachment level gain (CALG), keratinized tissue height (KTH), keratinized tissue thickness (KTT), percentage of root coverage (RC), and percentage of restored root coverage (RRC).
  
  
  RESULTS
  Intra- and intergroup analyses demonstrated no significant differences in PI, BOP, PD, RR, CALG, KTH, or KTT (P >0.05) among the groups at any time. At 6 months, the mean RC was 80.83% +/- 21.08% for group 1; the mean RRCs were 71.99% +/- 18.69% and 74.18% +/- 15.02% for groups 2 and 3, respectively. There were no statistically significant differences in RRC between groups 2 and 3.
  
  
  CONCLUSIONS
  All treatments showed root coverage improvement without damage to periodontal tissues, supporting the use of CPF for treatment of root surfaces restored with RMGI or MRC as being effective over the 6-month period.
authors.affiliation: Department of Periodontics, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil.
authors.forename: Juliana Antico
authors.initials: JA
authors.lastname: Lucchesi
authors.forename: Vanessa Renata
authors.initials: VR
authors.lastname: Santos
authors.forename: Cristiane Mariote
authors.initials: CM
authors.lastname: Amaral
authors.forename: Daiane Cristina
authors.initials: DC
authors.lastname: Peruzzo
authors.forename: Poliana Mendes
authors.initials: PM
authors.lastname: Duarte
mesh_terms: D000180:Acrylic Resins / Q000627:therapeutic use*; D000328:Adult; D003188:Composite Resins / Q000627:therapeutic use*; D003731:Dental Caries / Q000628:therapy*; D003793:Dental Restoration, Permanent / Q000379:methods; D004812:Epidemiologic Methods; D005260:Female; D005889:Gingival Recession / Q000601:surgery*; D005899:Glass Ionomer Cements / Q000627:therapeutic use; D006801:Humans; D008297:Male; D011140:Polyurethanes / Q000627:therapeutic use*; D013524:Surgical Flaps; D019237:Tooth Cervix; D014092:Tooth Root / Q000601:surgery
chemical_list: D000180:Acrylic Resins; C029012:Composite Dental Resin; D003188:Composite Resins; D005899:Glass Ionomer Cements; D011140:Polyurethanes