The use of osseointegrated fixtures in combination with an overdenture provides a treatment alternative for functionally and cosmetically restoring the edentulous mandible. Forty-four patients were treated over a period of 2.5 years, and a 97.7% success rate was obtained for the overdentures and the individual loaded fixtures. The complications encountered were mostly nonspecific to the osseointegration technique, but were directly related to the overdenture treatment technique. Clinical results, guidelines, and limitations of this treatment are described. Keywords: edentulousness, implants, mandible, osseointegration, overdentures