title: Root coverage with connective tissue graft associated with coronally advanced flap or tunnel technique: a randomized, double-blind, mono-centre clinical trial.
abstract: The aim of this randomized clinical trial was to compare the coronally advanced flap (CAF) with the modified microsurgical tunnel technique (MMTT) for treatment of Miller class I and II recessions.
  
  
  
  Forty patients with 71 gingival recessions were recruited and randomly assigned to either CAF or to MMTT. In both groups, a connective tissue graft was applied. Clinical evaluations were performed after 3, 6, and 12 months. Impressions were taken and digitally scanned three-dimensionally to evaluate the quantitative soft tissue changes in the operative region. Patient satisfaction was measured with the root coverage aesthetic score (RES).
  
  
  
  After a period of 12 months, significant differences were not found between the two groups. Root coverage was 98.3% for CAF and 97.2% for MMTT. The evaluation of the aesthetic outcome using RES showed good results in both groups. The RES score was in accordance with subjective patient satisfaction. There was no significant difference in the amount of volumetric changes.
  
  
  
  CAF and MMTT with the additional use of a graft are equally successful in covering gingival recessions of Miller class I and II, with high aesthetic results. All patients indicated their willingness for further periodontal surgery.
authors.affiliation: Department of Operative Dentistry and Periodontology, University Medical Center, Johannes Gutenberg University, Mainz, Germany.|Department of Cell Biology and Histology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
authors.forename: Adriano
authors.initials: A
authors.lastname: Azaripour
authors.affiliation: Department of Operative Dentistry and Periodontology, University Medical Center, Johannes Gutenberg University, Mainz, Germany.
authors.forename: Maren
authors.initials: M
authors.lastname: Kissinger
authors.affiliation: Private Practice, Fiorano al Serio, Bergamo, Italy.
authors.forename: Vittorio Siro Leone
authors.initials: VS
authors.lastname: Farina
authors.affiliation: Department of Cell Biology and Histology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
authors.forename: Cornelis J F
authors.initials: CJ
authors.lastname: Van Noorden
authors.affiliation: Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), Johannes Gutenberg University, Mainz, Germany.
authors.forename: Aslihan
authors.initials: A
authors.lastname: Gerhold-Ay
authors.affiliation: Department of Operative Dentistry and Periodontology, University Medical Center, Johannes Gutenberg University, Mainz, Germany.
authors.forename: Brita
authors.initials: B
authors.lastname: Willershausen
authors.affiliation: Accademia Toscana di Ricerca Odontostomatologica (ATRO), Florence, Italy.
authors.forename: Pierpaolo
authors.initials: P
authors.lastname: Cortellini
mesh_terms: D003238:Connective Tissue; D004311:Double-Blind Method; D005500:Follow-Up Studies; D005881:Gingiva; D005889:Gingival Recession; D006801:Humans; D014092:Tooth Root; D016896:Treatment Outcome
keywords: gingival recessions; randomized clinical trial; root coverage