抄録
We examined the mobility of 39 ITI Bonefit® 2-part screw implants from 3 to 6 months after implantation with Periotest®. For determination of the difference of Periotest value(PT value) in each measuring position, we examined PT values in the top of the implant body(1), in the head point 2 mm away from the top (2) and in the head point 4 mm away(3).
In the case of (1), the PT value of an 8 mm implant length of the maxilla was -2.4 and that of 12 mm was -3.6. The PT values of 10 mm and 12 mm implant length of the mandibula were -4.7. The difference of PT value between (1) and (3)was 5.2 in an 8 mm implant length and 3.6 in a 12 mm implant length of the maxilla.The same difference was 3.2 in the case of the 10 mm implant length and 2.7 in the 12 mm implant length of the mandibula. The difference between 12 mm implant lengths of the maxilla and mandibula is significant in (2) and (3) by a 5% danger rate, but the significant difference between the 10 mm and 12 mm implant lengths of the mandibula is not recognized.
