Monthly Archives: May 2016

Are Long Terms Results for Collagen Matrix Comparable to Autogenous Tissue for Root Coverage?

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IMG_0950(05-20-19-15-01)_20160520

Methods:

Collagen matrix used with a coronally advanced flap was compared to a connective tissue graft used with a coronally advanced flap at 6 months and 5 years for root coverage achieved.

Results:

Seventeen patients were available for the 5-year recall.  Mean root coverage between 6 months and 5 years changed from 89.5% to 77.6% for collagen matrix and 97.5% to 95.5% for connective tissue.  There was no significant difference between the therapies for changes in root coverage, keratinized tissue width, and probing depth.  Patient satisfaction was similar for both therapies.

Conclusions:

Collagen matrix is a viable long term alternative to traditional autogenous connective tissue when used in conjunction with a coronally advanced flap for root coverage procedures.

Dr. G’s comments:

There is a trend for slightly better root coverage with autogenous tissue, but patients seem to prefer the lower morbidity of an allograft.

For more information please refer to:

J Periodontol. 2016 Mar;87(3):221-7

Long-Term Results Comparing Xenogeneic Collagen Matrix and Autogenous Connective Tissue Grafts With Coronally Advanced Flaps for Treatment of Dehiscence-Type Recession Defects.

McGuire MK, Scheyer ET

Does Suture Removal Time Affect Root Coverage Outcome?

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SCIENCE OF IMPLANTS May 8 2016
Methods:
A meta-analysis of randomized clinical trials that assessed single tooth class I or II recession defects treated surgically with a coronally advanced flap. Early (less than 10 days post-op) and late (more than 10 days post-op) suture removal were compared in terms of differences in complete root coverage outcome.
Results:
Data from seventeen studies comprising of 325 single recession defects revealed a superior proportion of sites exhibiting complete root coverage when sutures where removed more than 10 days post-operatively.  No significant difference in outcomes between absorbable and non-absorbable sutures when they were removed more than 10 days after surgery.
Conclusions:
Early suture removal (less than 10 days post-op) can hinder complete root coverage outcomes in singe tooth recession defects treated with a coronally advanced flap.
Dr. Gebrael’s comments: 
Modern 5-0 polypropylene sutures have excellent tensile characteristics and are comfortable enough for us to delay suture removal until at least one month post-op.  This allows a mature attachment to form and increases the odds for complete root coverage.
For more information please refer to:    J Periodontol. 2016 Feb;87(2):148-55
The Effect of Suturing Protocols on Coronally Advanced Flap Root-Coverage Outcomes: A Meta-Analysis
Tatakis DN, Chambrone L