Recently we extracted a lower left second premolar [#20] which had a huge periapical odontogenic cyst. Although the tooth previously had root canal treatment, the cyst persisted and eventually we had to extract the tooth. By means of a Full Thickness Flap, we completely enucleated the cystic epithelial lining . The lining did not come out in one piece, since it was infected. However we were able to get down to the bare bone. We did not graft with mineralized particulate bone, nor did we place a resorbable membrane. We did achieve primary closure of the surgical site.
After six months, we plan to place an implant in the area of the second premolar with grafting if necessary. Should we have grafted that area with Bio-Oss [Osteohealth, an osteoconductive bone substitute] and covered with a resorbable collagen membrane BioGide [Osteohealth]at the time of the surgery and then obtained primary closure? Would this give us a more predictable result?