NATURAL TOOTH INTRUSION PHENOMENON WITH IMPLANTS - A SURVEY

A common assumption when planning for treatment for a fixed partial de nture potentially involving an osseointegrated implant is to avoid con nection between the implant and natural tooth abutment because of the differences in mobility and potential long-term effects. A large popul ation was surveyed to measure the incidence of natural tooth intrusion in implant-assisted fixed partial dentures (IAFPD) and to try to iden tify a correlation between type of implant and/or type of connector. N atural tooth intrusion occurred in 3.5% of the patient population spec ifically treated with IAFPD. No correlation could be made between inci dence of intrusion and the type of implant or type of connecter used.