Evaluation of the Effect of Different Thread Designs on Primary Stability of Dental Implant Using Osseodensification Technique in Posterior Maxilla : Randomized Clinical Trial

Inclusion Criteria: * age from 20 to 60 years * both sex * patient with deficient width in posterior maxilla Exclusion Criteria: * inadequate oral hygiene * smoking habit \> 10 cigarettes per day * abuse of alcohol or drugs * pregnancy * local or systemic infection * sever hepatic or renal dysfunction * bony or soft tissue pathological condition at surgical site * uncontrolled systemic diseases * parafunctional habits * inability or unwillingness to return for follow-up visits