R.T.R. Absorbable Collagen Membrane 20mm x 30mm, 1/Bx. Absorbable, implantable material that is indicated for guided tissue regeneration procedure in periodontal defects to enhance regeneration of the periodontal apparatus. Absorbs in 4-8 weeks. Maintains bone grafting material to the region to be reconstructed. Supports wound healing and guide bone regeneration. Appears white when dry and translucent and non-slippery when wet. Biocompatible and well tolerated with no adverse healing effects.