الفهرس 
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Abstract
The problem atrophy lower jaw represent the bulk of the distortions the face and jaws and considered way elongation bone (using the guys bones lower jaw) is the best way to treat such cases have been sacrificed studies that growth factors stimulate the formation of bone, leading to heal may think that Albulazemh rich plateletsblood Thioy on محموعة of growth factors that help in wound healing has been used plasma-rich platelets vessels in the formation of Shiddi to jawbone Lower using guys bones and some of them proved that the plasma-rich platelets bloody role in osteogenesis and others stressed that he not see her role in osteogenesis hasThe researchers recommended in this area Bahra new research on blood plasma rich in platelets to be sure of its role in bone formation in the different areas of Oral and Maxillofacial surgery