Synthetic dental membranes – PLA and PTFE
Guidor by Sunstar- bilayer polylactic acid (PLA) = PLLA?
Gore Resolut by Gore – PLA discontinued
Atrisorb by Citagenix – PLA flowable 9-12 months
Epi-Guide by Kensey Nash – D, D-L, L polylactic acid – barrier for up to 20 weeks with complete bioresorption between 6-12 months
PLGC – poly L-lactide-co-glycolide-coepsilon- caprolactone = poly(lactic acid-co-glycolic acid-co-ε-caprolactone)
PLGA – same PLGC without the C, poly(lactic acid-co-glycolic acid
Cytoplast by Osteogenics – dPTFE membrane
PTFE Barrier Membrane by ACE through Henry Schein – dPTFE membrane
TR-PTFE by Osteogenics – titanium reinforced dPTFE membrane (Henry Schein is cheaper)
PEG polyethylene gel – experimental synthetic hydrogel (Not any more – see below)
Membragel by Straumann – polyethylene glycol (PEG). Its gelification is activated by the combination of PEG A (containing acrylate as terminal functional group), PEG B (containing thiol as terminal functional group) and activators A (viscosity modifier) and B (isotonic chemical solution creating an optimal pH to start the chemical reaction).
The chemical components of PEG A and PEG B create a molecular network of PEG, that acts as a barrier and avoids the migration of soft tissue cells; in the meanwhile it remains permeable to nutritional substances.
TR-PTFE more bone but less dense than PLGC for lateral defects