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.
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.
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