Effect of static magnetic fields on the osseointegration of immediately placed implants: a randomized controlled clinical trial

The aim of this study was to evaluate the effects of static magnetic fields (SMFs) on the implants immediately placed in fresh extraction sockets. Twenty patients who were in need of 20 fixed implant-supported single crowns in the anterior maxilla were included. After tooth extraction, screw-type implants were placed immediately into fresh extraction sockets and were randomly covered with either magnetic abutment (test group) or conventional healing abutment (control group). Radio frequency analysis (RFA) was conducted at implant placement and after 1, 2, and 3 months. Marginal bone level changes were recorded 1, 2, and 3 months postoperatively. The RFA measurements showed a significant higher stability for implants in test group than that of control group after 1 month (P = 0.04). At month 2, less crestal bone loss was found in the test group (P = 0.03). However, at month 3, there was no significant difference between the groups for both parameters (P > 0.05). SMFs caused more noticeable increase in implant stability and less bone loss during the initial weeks of healing.