The association of a polydioxanone tent without a guided tissue regeneration membrane to a coronal sliding flap for root coverage.
BACKGROUND
This study verifies clinical results of using a polydioxanone (PDS) tent without a guided tissue regeneration (GTR) membrane for root coverage.


METHODS
Forty-nine gingival recessions (in 16 patients) were treated with a PDS tent inserted under the coronally positioned gingival flap. The recession level (RL), probing depth (PD), and keratinized mucosa width (KMW) were registered. Statistical analysis was performed with the Wilcoxon test.


RESULTS
In 48 cases, there was a significant reduction in the RL (2.55 +/- 1.11 mm on day 0 and 0.34 +/- 0.65 mm on day 120; P = 0.0001). PD showed the same values at the beginning and end of treatment in 47 cases (0.99 +/- 0.71 mm on days 0 and 120; z = 0.000). There was a significant increase of KMW in 46 cases (2.38 +/- 0.76 mm on day 0 and 3.18 +/- 0.90 mm on day 120; P = 0.0001).


CONCLUSIONS
The association of the PDS tent without the GTR membrane to a coronal sliding flap for root coverage of Miller Class I and II gingival recessions allows root coverage, gain of attachment level, and an increase of keratinized mucosa. For root coverage, it is not necessary to use the GTR membrane associated to the PDS tent, thereby reducing surgical costs. Future studies should be conducted to assess the sole performance of the PDS as an alternative method to a connective tissue graft and coronal sliding flap, thus decreasing risks and post-surgery discomfort.
de Toledo Lourenço
Aneliese Holetz
AH
Department of Periodontics, Faculty of Odontology, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil. holetzlourenco@terra.com.br
de Toledo Lourenço
Evandro
E
Fraga
Marcelo Reis
MR
Vitral
Robert Willer Farinazzo
RW
D000328:Adult; D001672:Biocompatible Materials / Q000627:therapeutic use*; D005260:Female; D005500:Follow-Up Studies; D005881:Gingiva / Q000473:pathology; D005889:Gingival Recession / Q000145:classification / Q000601:surgery*; D005893:Gingivoplasty; D016557:Guided Tissue Regeneration, Periodontal / Q000379:methods*; D006801:Humans; D007633:Keratins; D008297:Male; D008567:Membranes, Artificial; D008875:Middle Aged; D017622:Periodontal Attachment Loss / Q000601:surgery; D010514:Periodontal Pocket / Q000601:surgery; D016687:Polydioxanone / Q000627:therapeutic use*; D013524:Surgical Flaps / Q000473:pathology; D014092:Tooth Root / Q000601:surgery*; D055815:Young Adult
D001672:Biocompatible Materials; D008567:Membranes, Artificial; D016687:Polydioxanone; D007633:Keratins