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40-Month Prospective Survival Study

FREESTANDING AND MULTIUNIT IMMEDIATE LOADING OF THE EXPANDABLE IMPLANT;
AN UP­T0-40-MONTH PROSPECTIVE SURVIVAL STUDY
Young Hwan Jo, DDS, MSD, PhD,a Peter K. Hobo, DDS,b and Sumiya Hobo, DDS, MSD, PhDc Seoul Dental Institute, Seoul, Korea, and International Dental Academy, Tokyo, Japan

Two hundred eighty-six immediate-load Sargon® implants were placed in 75 patients during a 40-month period. Of the 273 implants that survived, 81 were placed into fresh extraction sockets and immediately loaded, 162 were placed into healed sites and immediately loaded, and 30 were delay loaded. Some implants that had failed to remain stable after immediate loading became stable and osseointegrated after the load was removed and their expansion mechanisms were reactivated.

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