Hossam Khaled, Mohammed Atef , Maha Hakam And Hossam Khaled,

ABSTRACT


Purpose: The Present Study Was Conducted To Evaluate The Amount Of Bone Height Gain, Density Values And Implant Stability After Maxillary Sinus Floor Elevation Using Graftless Tenting Technique Or The Use Of Hydroxyapatite Nanoparticles Bone Substitute For Augmentation With Simultaneous Implant Placement.

Materials and Methods: A Total Of 20 Sinuses With A Residual Alveolar Bone Height Ranging From 4-6mm Were Divided Into Two Groups And Underwent Sinus Augmentation Using Nano Hydroxyapatite Bone Substitute Material And The Graftless Tenting Technique With Simultaneous Implant Placement. Computed Tomography CT Scans And ISQ Measurements Were Conducted To Evaluate Bone Quality, Quantity And Implant Stability.

Results: Radiographic Analysis Revealed That The Mean Bone Height Gain Of The Nano Group Was 7� 0.8mm Compared To 5�1.5mm In The Tent Group. The Mean Bone Density Of The Nano Group Was 548�25 Compared To 420�23 In The Tent Group. The Mean ISQ Value After 6 Months In The Nano Group Was 78�5 Compared To 77�5 In The Tent Group. Conclusion: Nano Hydroxyapatite Bone Graft Offered Superior Results In Terms Of The Bone Height Gain And The Relative Bone Density As Compared To Graftless Tenting Technique. However, Both Techniques Showed Accepted Results Regarding Implant Stability.