Asma M. Serag Eldien , Mona Ali Shoeib , Enji Ahmed Mahmoud And Shahira Eldomiaty,

ABSTRACT
Objective: This Randomized Clinical Trial Aimed To Compare Between Platform Switched Implants And Platform Matched Implants Regarding Change In Marginal Bone Level Up To 9 Month After Final Prosthetic Reconstruction Using Cone Beam Computed Tomography (CBCT) And Periotest.

Materials and Methods: The Study Included A Total Of 26 Implants In 12 Patients, Inserted And Positioned At The Crestal Bone Level, And Randomly Assigned Into Two Groups Either Platform-matched (control) Or A Platform-switched (mismatch 0.35-0.6 Mm) Implant Abutment Connection (test). Outcome Measures Were Patient?s Satisfaction, Implant Mobility, And Radiographic Crestal Bone-level Changes. These Parameters Were Assessed Preoperatively, 3 Months After Implant Placement And 9 Months After Placing The Implant Crown.

Results: For All The Measured Outcomes, There Was No Statistically Significant Difference Between The Two Groups. However After 9 Months, Platform-switched Group Showed Statistically Significantly Lower Mean Percentage Of Crestal Bone Loss Than Platform-matched Group.

Conclusions: Within The Limitation Of The Current Study, The Results Suggested That There Was No Difference Between Both Groups And Platform Diameter Does Not Have A True Impact Upon Hard Tissue Response Around Dental Implants.