title: Bovine pericardium based non-cross linked collagen matrix for successful root coverage, a clinical study in human.
abstract: BACKGROUND
  The aim of this study was to clinically assess the capacity of a novel bovine pericardium based, non-cross linked collagen matrix in root coverage.
  
  
  METHODS
  62 gingival recessions of Miller class I or II were treated. The matrix was adapted underneath a coronal repositioned split thickness flap. Clinical values were assessed at baseline and after six months.
  
  
  RESULTS
  The mean recession in each patient was 2.2 mm at baseline. 6 Months after surgery 86.7% of the exposed root surfaces were covered. On average 0,3 mm of recession remained. The clinical attachment level changed from 3.5 ± 1.3 mm to 1,8 ( ± 0,7) mm during the observational time period. No statistically significant difference was found in the difference of probing depth. An increase in the width of gingiva was significant. With a baseline value of 1.5 ± 0.9 mm an improvement of 2.4 ± 0.8 mm after six month could be observed. 40 out of 62 recessions were considered a thin biotype at baseline. After 6 months all 62 sites were assessed thick.
  
  
  CONCLUSIONS
  The results demonstrate the capacity of the bovine pericardium based non-cross linked collagen matrix for successful root coverage. This material was able to enhance gingival thickness and the width of keratinized gingiva. The percentage of root coverage achieved thereby is comparable to existing techniques. This method might contribute to an increase of patient's comfort and an enhanced aesthetical outcome.
authors.affiliation: Private Practice, Bayreuther Strasse 39, 91301 Forchheim, Germany. markus.schlee@32schoenezaehne.de
authors.forename: Markus
authors.initials: M
authors.lastname: Schlee
authors.forename: Shahram
authors.initials: S
authors.lastname: Ghanaati
authors.forename: Ines
authors.initials: I
authors.lastname: Willershausen
authors.forename: Michael
authors.initials: M
authors.lastname: Stimmlmayr
authors.forename: Anton
authors.initials: A
authors.lastname: Sculean
authors.forename: Robert A
authors.initials: RA
authors.lastname: Sader
mesh_terms: D000328:Adult; D000818:Animals; D002417:Cattle; D003094:Collagen; D005260:Female; D005889:Gingival Recession / Q000601:surgery*; D016557:Guided Tissue Regeneration, Periodontal / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010496:Pericardium; D054457:Tissue Scaffolds; D014092:Tooth Root
chemical_list: D003094:Collagen