title: Coronally positioned flap plus resin-modified glass ionomer restoration for the treatment of gingival recession associated with non-carious cervical lesions: a randomized controlled clinical trial.
abstract: BACKGROUND
  The aim of this randomized clinical trial was to evaluate the treatment of gingival recession associated with non-carious cervical lesions by a coronally advanced flap alone (CAF) or in combination with a resin-modified glass ionomer restoration (CAF+R).
  
  
  METHODS
  Nineteen subjects with bilateral Miller Class I buccal gingival recessions associated with non-carious cervical lesions were selected. The recessions were assigned randomly to receive CAF or CAF+R. Bleeding on probing (BOP), probing depth (PD), relative gingival recession (RGR), clinical attachment level (CAL), non-carious cervical lesion height (CLH), and dentin sensitivity (DS) were measured at baseline; 45 days; and 2, 3, and 6 months postoperatively. Keratinized tissue width (KTW) and keratinized tissue thickness (KTT) were measured at baseline and 6 months. The height of the non-carious cervical lesion located on the root and crown were estimated, allowing calculation of root coverage.
  
  
  RESULTS
  Both groups showed statistically significant gains in CAL and soft tissue coverage. The differences between groups were not statistically significant for BOP, PD, RGR, CAL, KTW, and KTT after 6 months. The percentages of CLH covered were 56.14% +/- 11.74% for CAF+R and 59.78% +/- 11.11% for CAF (P >0.05). The root and crown surfaces affected by the non-carious cervical lesion were 1.67 +/- 0.31 mm and 0.96 +/- 0.29 mm, respectively, for CAF+R and 1.59 +/- 0.37 mm and 1.01 +/- 0.33 mm, respectively, for CAF. The estimated root coverage was 88.02% +/- 19.45% for CAF+R and 97.48% +/- 15.36% for CAF (P >0.05). CAF+R reduced DS significantly compared to CAF (P <0.05).
  
  
  CONCLUSIONS
  Both procedures provided similar soft tissue coverage after 6 months. Despite the fact that a greater reduction in DS was observed after CAF+R, longitudinal observations are necessary to confirm these results.
authors.affiliation: Department of Prosthodontics and Periodontics, State University of Campinas, Piracicaba, SP, Brazil.
authors.forename: Mauro Pedrine
authors.initials: MP
authors.lastname: Santamaria
authors.forename: Fabricia Ferreira
authors.initials: FF
authors.lastname: Suaid
authors.forename: Marcio Zaffalon
authors.initials: MZ
authors.lastname: Casati
authors.forename: Francisco Humberto
authors.initials: FH
authors.lastname: Nociti
authors.forename: Antonio Wilson
authors.initials: AW
authors.lastname: Sallum
authors.forename: Enilson Antônio
authors.initials: EA
authors.lastname: Sallum
mesh_terms: D000328:Adult; D003131:Combined Modality Therapy; D003793:Dental Restoration, Permanent / Q000379:methods; D003807:Dentin Sensitivity / Q000628:therapy; D005260:Female; D005500:Follow-Up Studies; D005881:Gingiva / Q000473:pathology; D005884:Gingival Hemorrhage / Q000601:surgery; D005889:Gingival Recession / Q000601:surgery*; D005899:Glass Ionomer Cements; D006801:Humans; D008297:Male; D008875:Middle Aged; D017622:Periodontal Attachment Loss / Q000601:surgery; D010514:Periodontal Pocket / Q000601:surgery; D019279:Resin Cements; D013524:Surgical Flaps; D014072:Tooth Abrasion / Q000628:therapy; D019237:Tooth Cervix / Q000473:pathology*; D019228:Tooth Crown / Q000473:pathology; D014076:Tooth Diseases / Q000473:pathology / Q000628:therapy*; D014077:Tooth Erosion / Q000628:therapy; D014092:Tooth Root / Q000473:pathology
chemical_list: D005899:Glass Ionomer Cements; D019279:Resin Cements