Effect of the length an implant is embedded in bone on mobility

Abstract

We investigated the relation between the length a dental implant is embedded in bone and its mobility in two different models, one with cortical anchorage and one without. The implants were made of brass cylinders 4 mm in diameter which were embedded 7, 9, 11, 13, 15 and 17mm into a resin model of bone. We measured the implant movement (IM) score horizontally with an implant movement checker. We found that the cortical bone was very important for implant stability and that increasing the length the implant was embedded in the bone did not proportionately reduce mobility.