Youssef Emad, Mona Darhous , Ahmed El Barbary And Amr Zahran,

ABSTRACT
Aim Of The Study: The Purpose Of This Study Was To Evaluate The Bone Width Gain Following The Split-crest Technique With Or Without Platelet Rich Fibrinin Conjunction With Simultaneous Implant Placement In Narrow Alveolar Ridges.

Materials and Methods: Fourteen Patients With Missing One Or More Upper Teeth With 3.5mm-5.5mm Residual Bone Width And At Least 12 Mm Residual Bone Height Received A Total Of Twenty Implants Equally Distributed In Each Group. In Both Groups, Piezoelectric Device Was Used For Splitting Leaving The Gap Empty In The Control Group And Fillingit With Platelet Rich Fibrinin The Test Group. Ridge Width Gain, Bone Height Loss, Implant Stability, Pain Scale And Healing Index Were Evaluated And Compared Between Both Groups.

Results: Width Gain After 6 Months Was Found To Be 2.85 ?0.39 Mm For The Test Group And 2.97 ?0.42 Mm For The Control Group With No Significantdifference Between Both Groups. Regarding The Other Parameters As Width Gain, Bone Height Loss, Implant Stability, Pain Scale And Healing Index. There Was No Statistically Significantdifference Found Between Both Groups, Yet The Soft Tissue Healing Was Slightly Better In The Test GroupConclusion: Using Platelet Rich Fibrinas A Fillerfor The Split Gap And Under The Flapshowed No Added Benefitsregarding The Bone Width Gain, Crestal Bone Loss, Implant Stability And Postoperative Pain, But Might Have Slightly Enhanced The Rate Of Soft Tissue Healing.