Graduate School of Clinical Dentistry, Ewha Womans University, Seoul, Korea.
Angle Orthod. 2010 Jan;80(1):137-44. doi: 10.2319/011909-40.1.
To evaluate palatal bone density to allow for better selection of palatal implant anchorage sites.
Computed tomographic (CT) images were obtained from 15 males and 15 females (mean age, 27 years; range, 23-35 years). Bone density was measured in Hounsfield units (HU) at 80 coordinates at regular mediolateral and anteroposterior intervals along the midpalatal suture.
Bone densities ranged from 805 to 1247 HU. A significant difference between male and female groups was noted, although no difference was found between left and right sides of individual palates. Palatal bone densities showed a tendency to decrease laterally and posteriorly. The midpalatal area within 3 mm of the midsagittal suture had the densest bone in the entire palate.
Results suggest that mini-implants for orthodontic anchorage may be effectively placed in most areas with bone density equivalent to the palatal area if they are placed from 3 mm posterior to the incisive foramen and 1 to 5 mm to the paramedian side.
评估腭骨密度，以便更好地选择腭部种植体锚固部位。
从 15 名男性和 15 名女性（平均年龄 27 岁；范围 23-35 岁）中获得计算机断层扫描（CT）图像。在中隔中线沿中线和前后间隔的 80 个坐标处以亨氏单位（HU）测量骨密度。
骨密度范围为 805 至 1247 HU。尽管在个体腭骨的左右两侧未发现差异，但男性和女性组之间存在显著差异。腭骨密度有向外侧和向后侧减少的趋势。中隔中线 3 毫米内的中隔区域在整个腭骨中具有最密集的骨。
结果表明，如果将微型种植体从切牙孔后 3 毫米和正中旁 1 至 5 毫米处放置，用于正畸锚固的微型种植体可能会有效地放置在具有与腭部相当的骨密度的大多数区域。
