Preoperative computed tomography-derived bone densities in hounsfield units at implant sites acquired primary stability.
Preoperative computed tomography-derived bone densities in hounsfield units at implant sites acquired primary stability.
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DOI：
10.5402/2011/678729
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Akagawa Y
中科院分区：
文献类型：
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作者：
Hiasa K;Abe Y;Okazaki Y;Nogami K;Mizumachi W;Akagawa Y
本研究的目的是评估获得初步稳定的种植体部位Hounsfield单元（HU）术前ct得出的骨密度，并将这些值与文献中提出的最佳骨密度进行比较。在2003年至2010年间对51例患者进行了评估，其中男性18例（37个种植体位置），女性33例（67个种植体位置）。采用Kruskal-Wallis检验和Scheffe’s检验进行多重比较（P < 0.05）。上颌平均骨密度显著低于下颌骨（P < 0.05）；4个颌区平均骨密度下降的顺序为：上颌前区>上颌前区>下颌骨后区>上颌后区。HU评估的骨密度在文献中提出的与获得性初级种植体稳定性相关的最佳骨密度范围内。
The purpose of this study was to evaluate preoperative CT-derived bone densities in Hounsfield units (HU) at implant sites that acquired primary stability, and to compare these values to the optimal bone densities proposed in the literature. Fifty-one patients, 18 males (37 implant sites) and 33 females (67 implant sites) between 2003 and 2010 were assessed. CT data for different jaw sections, regions, and operating procedures were compared using the Kruskal-Wallis test and Scheffe's test for multiple comparisons (P < 0.05). The mean bone density in the maxilla was significantly lower than that in the mandible (P < 0.05); the mean bone densities in the 4 jaw regions decreased in the following order: anterior mandible > anterior maxilla > posterior mandible > posterior maxilla. The bone densities assessed by HU fell into the range of optimal bone densities associated with acquired primary implant stability proposed in the literature.