[Animal experiments on the question of healing around the Tübingen immediate implant].

In order to determine the capacity for deposition of bone, 5 Beagles were each implanted extraorally with 6 aluminium oxide cylinders into the horizontal mandibular ramus. 4 months after the first implantation a second implantation was carried out in the opposite side with similar cylinders. After six months all were removed so that in altogether 60 implants the bone deposition could be observed 4 months and 2 months after implantation. A further 14 dogs received altogether 55 Tuebinger immediate implants. All animals were regularly observed post-operatively. After 6 months all cylinder full-implants had been accepted without reaction. All tooth implants which were either not put under strain or were immediately put under pressure healed without reaction. After three months 19 implants were lost and a further 5 were lost after 8 months. All cylinder implants were histologically examined 6 months after first implantation.