2016 Volume 25 Issue 3 Pages 241-246
It is important to assess the general bone condition when performing dental implant treatment. The classification of the mandibular cortical bone index (MCI) using multi-slice computed tomography (MSCT) could be applicable to evaluate the general bone condition. In an investigation involving women, MCI-CBCT was classified using cone-beam CT (CBCT), and MCI-CBCT was compared with MCI-MSCT. A total of 32 women who had undergone diagnostic imaging for mandibular dental implant treatment using multi-slice and cone-beam CT were enrolled in this investigation. Cross-sectional images from the mental foramen to the anterior margin of the mandibular ramus were continuously reconstructed from mandibular data of multi-slice and cone-beam CT. Subsequently, MCI-MSCT and MCI-CBCT were visually classified into two types: homogeneous and osteoporotic, and MCI-CBCT was compared with MCI-MSCT. The homogeneous type included 18 subjects and osteoporotic type included 14 subjects using cone-beam CT. The types were in agreement between MCI-MSCT and MCI-CBCT in 30 of the 32 subjects. Two of the 20 subjects classified into the homogeneous type using MCI-MSCT were classified into the osteoporotic type using MCI-CBCT. MCI-CBCT could be visually classified into two types, and may be applicable to evaluate the general bone condition.
