Primary stability in endosseous dental implants

Dental implants are becoming increasingly popular for tooth replacement. The advantages to dental implant therapy over removable partial dentures or fixed partial dentures include enhanced aesthetics, no preparation of adjacent teeth, a fixed restoration where hygiene can be performed similar to natural teeth, and a high success rate that has been well established in the literature. For replacement with dental implants osseointergration is a prerequisite for successful prognosis of the treatment. To achieve osseointegration implant should have stabilitywith native bone to achieve good bone to implant contact. Primary stability of an implant is the absence of mobility in the bone bed upon insertion of the implant and mostly comes from mechanical interaction with cortical bone. several factors contribute in achieving primary stability. Assessment of primary stability helps the clinician to know the prognosis of the treatment.