Doundoulakis et al., The implant-supported overdenture as an alternative to the complete mandibular denture, JADA, Vol.134, pp1455-1458, 2013
The use of dental implants to provide support for an implant overdenture offers many advantages compared with the use of removable soft tissue–borne restorations. A primary reason to consider dental implants to replace missing teeth is the maintenance of alveolar bone. The most common position to insert implants for an overdenture is in the anterior mandible. After the implants are inserted, the anterior bone under an overdenture may resorb as little as 0.6 mm vertically over 5 years, and long-term resorption may remain at less than 0.05 mm per year.[1, 2] Stress and strain may be applied to the bone surrounding the implant. As a result, the decrease in trabeculation and volume of bone that occurs after tooth extraction is reversed. There is an increase in bone trabeculae and density when the dental implant is inserted and functioning. The overall volume of bone around the implants is also maintained. An endosteal implant can maintain bone width and height as long as the implant remains healthy. As with a tooth, peri-implant bone loss may be measured in tenths of a millimeter and may represent a more than 20-fold decrease in lost bone structure compared with the resorption that occurs with removable prostheses
 Bergendal et al., Implant supported overdentures: a longitudinal prospective study, Int J Oral Maxillofac Implants 13:253–262, 1998.
 Attard et al., Long-term treatment outcomes in edentulous patients with implant overdentures, Int J Prosthodont 17:425–433, 2004.
 Roberts et al: Implants: bone physiology and metabolism, Calif Dent Assoc J 15:54–61, 1987.