抄録
Since prosthetic replacement of missing teeth using implants has become fairly reliable, implantsare now used in a great number of cases. Recently, immediate implant placement has been performed with increasing frequency as a result of considering the healing period and preservation of the bone around the wound socket after tooth extraction, and this has been described in a number of reports. There are also various kinds of implants. Cases in which I. T. I. implants were inserted are reported and discussed.