AIM: To assess the Bone Mineral Density (BMD) of specific maxillary sites, through multi-slice CT, investigating the possible correlation between different BMD levels and mini-implant stability. METHODS: Scans were obtained from 30 regions of interest (ROI), 15 on the right side and 15 on the left side, of 15 individuals (7 males and 8 females with 21 years old mean age) about to start orthodontic treatment with mini-implants as anchorage units. BMD values were normally distributed. Paired t-test results showed statistically significant differences when the two sides were compared (p < 0.05). However, the mean of BMD values was close to the maximum value of a considered normal scale for maxillary posterior region, indicating that this is a safe area in terms of bone quality for mini-implants insertion.
Multi-Slice CT; Bone density; Maxillary
