comparing the drilling technique of using densah burs osseo densification drills in posterior maxilla with the normal surgical kit drilling

the densification of bone using the densah burs are thought to be improving the bone quality surrounding the implants thus increasing the primary stability and decreasing the marginal bone loss surrounding the implants comparing to the normal drilling techniques using the conventional implant drilling kit

Inclusion Criteria:

• Patients with partially edentulous in the posterior area of the maxilla, with a residual ridge that allowed insertion of ≤3.5 width implants.
• Both sexes.
• No intraoral soft and hard tissue pathology
• No systemic condition that contraindicate implant placement

Exclusion Criteria:

• Sinus pathology.
• Heavy smokers more than 20 cigarettes per day.
• Patients with systemic disease that may affect normal healing.
• Psychiatric problems
• Disorders to implant are related to history of radiation therapy to the head and neck neoplasia, or bone augmentation to implant site
• Immunodeficiency pathology, bruxism, stress situation (socially or professionally), emotional instability, and unrealistic aesthetic demands.