抄録
In this experimental study using adult Shepherd dogs, we examined whether the periotest values (PTVs) represent the interface between implants and regenerative bone or not.
1. PTV
PTVs of all ITI-Bonefit® were almost the same and the mean was -4.5. PTVs of all Cherchève implants showed the mean of ＋5.5. PTVs of BIOCERAM® -Porous implants were very divergent and the mean was ＋1.4 (maximum 25.2, minimum-5.0).
2. Histological Inspection
In some cases of ITI-Bonefit® and Cherchève implants, bone was resorbed very hard at the neck region. But the implants were in contact with regenerative bone. In particular, a BIOCERAM®-Porous implant was surrounded by soft tissue, showing the maximum PTVs of-25.2. By histologically sampling a part of implants were found to be in contact with regenerative bone showed a decrease in PTV. In particular, BIOCERAM®-Porous implant formed a regenerative bone ingrowth into the pore, and the mean of PTVs was -2.1.
