Dealing with a bone defected area in the upper and lower jaw is one of the most difficult procedure the surgeon would face. Too many obstacles could happen during and after surgery such as handling the bone graft, tension free closure, wound unclosed, infection and longtime of healing. Using anew substance of bone graft and collagen membrane enhanced the outcomes after the G.B.R. producers but still unpromising. The PRF and Sticky bone are a new concepts in dealing with defected area.
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