The Use of Custom Made Computerized Bone Block Allograft Review and Case Presentation

Objectives: The aim of the presented work is to present the technique of computarized specific bone allograft and present a case including pitfalls and their solution.

Methods: using a ct scan of the patients anterior mandible an allograft block was manufactured specifically to the patient’s recipient bone. Special denture was performed - that was sitting on the mandibular teeth . The surgery was done under local anesthetic A mucoperiosteal flap was raised, holes were drilled in the patient cortical bone, The allograft block was placed on the recipient site and was anchored using two mini screws. The flap was undermined using a skalpel. Nylon sutures were used for complete closure of the flap edges with no tension.

Complications: When the patient came for inspection, a small dehiscense was noticed at the top of the crest. Chlorhexidine gel was given . Throughout the inspections part of the allograft was exposed with no signs of infection . After 4 month new ct showed some radiolucensy area around the exposed bone .

In the second operation the exposed bone was removed from the allograft. The screws were removed and the granulation tissue was debrided. 2 dental implant were insrted, size 3.1 / 11.5 (איזה חברה), After 3 month the implants were surgicaly exposed dental rehabilitation.

Results: The majority of the bone block allograft was successfully incorporated with the patient’s native bone, and the exposed part did not affect the unexposed allograft.

Conclusion: The use of customized bone graft block was succeful with lowered morbidity in regard to a second surgery for bone graft garvesting, and also In contrast to autograft bone grafts, exposure of the bone block did not have a devestating efect on survival, larger studies are needed to understand the role of costumized bone blocks in the future of rehabilitation surgery.