Bone quality and quantity of the anterior maxillary trabecular bone in dental implant sites
Bone quality and quantity of the anterior maxillary trabecular bone in dental implant sites
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DOI：
10.1111/j.1600-0501.2011.02347.x
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发表时间：
2012-11-01
影响因子：
4.3
通讯作者：
Iida, Seiji
中科院分区：
文献类型：
--
作者：
Wakimoto, Mari;Matsumura, Tatsushi;Iida, Seiji
目的：本研究旨在探讨上颌前部无牙颌牙槽嵴种植体的种植部位特点。我们使用CT图像研究了自2006年以来在我科接受牙科种植治疗的33名患者的前上颌骨种植部位的骨量和质量。材料和方法：选择并检查了33名患者（20名女性：13名男性）的33个植入部位的计算机断层扫描（CT）图像。使用种植体计划软件（Sinplant 11.0）根据CT数据确定种植体植入的受体部位。使用Sinplant记录模拟植入物区域和骨小梁宽度的平均骨密度值，单位为Hounsfield单位（HU）。我们根据Lekholm和Zarb（1985）的分类对无牙槽嵴和骨质进行分类。结果：切牙骨密度高于尖牙。女性的骨密度低于男性。尖牙的骨小梁密度和牙槽骨宽度大于切牙。该组中没有上颌部位被判定为骨质为1。质量3占总样本的69.7%。结论：前牙槽嵴骨质量的评估可以很好地反映年龄相关的全身病理条件，并应用于牙科种植治疗计划，以避免相关的风险因素。
Objectives: The aim of this study was to investigate the characteristics of implant sites on the edentulous alveolar ridge in the anterior maxilla. We studied the bone quantity and quality of implant sites at the anterior maxilla using CT images for the 33 implant sites on patients who underwent dental implant therapy in our Department since 2006. Materials and methods: Computed tomography (CT) images of 33 patients (20 women: 13 men) encompassing 33 implant sites were chosen and examined. The recipient sites for implant placement were determined based on CT data using an implant planning software (Simplant 11.0). The mean bone density values in Hounsfield unit (HU) were recorded using Simplant for both the simulated implant areas and the trabecular bone width. We classified the edentulous alveolar ridge and bone quality according to a classification based on Lekholm and Zarb (1985). Results: Incisors had higher bone densities than canines. Women had lower bone densities than men. Canines displayed greater trabecular bone density and alveolar bone widths than incisors. No maxillary sites were judged to have a bone quality of 1 in this group. Quality 3 accounted for 69.7% of the total samples. Conclusions: An assessment of bone quality in the anterior alveolar ridge may well reflect age-related systemic pathological conditions and should be used in dental implant treatment planning to avoid associated risk factors.