Aisha Khaled, Nader El Bokle And Mohamed Ashraf,

ABSTRACT
Objective: The Aim Of This Study Was To Assess The Stability Of Immediate Two Piece Zirconium Implant Placed In Fresh Extraction Sockets In The Esthetic Zone Augmented By Autogenous Bone. Patients And Methods: 6 Immediate Implants Were Placed In Fresh Sockets In Esthetic Zones (anterior Maxillary Region) Using Hexalobe (two Pieces) Axis Biodental Implants****. Patients Were Examined Clinically And A CBCT Was Done For Each Patient Preoperatively Evaluating Bone Density. Atraumatic Extraction Was Done For Anterior Remaining Roots And Drilling Was Performed According To The Manufacturer Instructions Under Copious Irrigation Till Fixture Placement Then The Primary Implant Stability Was Measured Using The Resonance Frequency Analysis Via The Osstell ISQ System*****. Autogenous Bone Was Harvested From Symphysis Area To Fill The Gap Between The Implant And Socket Walls And A Collagen Membrane Was Placed. CBCT And Surgical Exposure Of The Implant Was Done After 4 Months Where Secondary Implant Stability Was Also Measured Using Osstell ISQ System. A Healing Abutment Was Placed For 2 Weeks Then Final Coronal Restoration Was Obtained.

Results:Healing Of Implants Was Uneventful. All Immediate Zirconium Implants Placed Were Stable With A Mean Primary Stabilityof 62.08 (? 1.71)and Mean Secondary Stability Of 67.08 (?1.30). There Was Non Significant Difference Between Preoperative And Postoperative Bone Density. Conclusion:Zirconium Implants Were Found To Be A Good Candidate In Esthetic Zones Overcoming Aesthetic Complications Arising From The Titanium Implants.