Fig. 1From: Retro MTA and tricalcium phosphate/retro MTA for guided tissue regeneration of periodontal dehiscence defects in a dog model: a pilot studya Surgical Procedure of creating four standardized critical size periodontal dehiscence defects on each side of the mandible. One of the defects in this photo was filled with Retro MTA + TCP. b Surgical Procedure of treating the defects and fixing the collagen membranes with titanium pinsBack to article page