BackgroundIt has been suggested that 1–2 mm of bone width at the buccal and lingual aspect is required for a successful long‐term implant outcome. Low levels of evidence support this minimum threshold of bone width. This prospective study aimed at evaluating the outcome of implants placed in alveolar ridges with limited bucco‐oral dimensions.Materials and MethodsOne‐hundred implants (dia. 3.5 mm) were placed in 28 patients with narrow alveolar ridge dimensions (<4.5 mm width) without augmentation procedures and conventionally loaded. Intra‐oral radiographs were taken at implant placement and abutment connection and at 1, 2, 3, 5 and 10 years of follow‐up. At the 10‐year follow‐up (21 patients; 75 implants), full‐mouth periodontal charting was performed, and the peri‐implant keratinized tissue width and attachment type were recorded. Two calibrated periodontists analysed the peri‐implant bone changes.ResultsAfter 10 years, all implants showed successful osseointegration and a cumulative survival rate of 100%. The implants were placed 0.85 mm ± 0.89 mm subcrestally. After 10 years, the marginal bone was located 1.59 ± 2.11 mm apical to the implant shoulder. Throughout this period of follow‐up, the mean annual marginal bone loss was 0.094 mm. Furthermore, 84% of implants in 72% of patients presented with bleeding on probing.ConclusionAfter 10 years of functional loading, implants placed in alveolar ridges with limited bucco‐oral dimensions (≤4.5 mm) exhibited only minimum marginal bone loss.

中文翻译：

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口腔颌骨尺寸有限的口腔种植体的十年随访：前瞻性病例系列


背景有人建议，要获得成功的长期种植结果，颊侧和舌侧的骨宽度需要 1-2 毫米。支持这一骨宽度最小阈值的证据水平较低。这项前瞻性研究旨在评估颊口腔尺寸有限的牙槽嵴中植入种植体的结果。材料和方法将 100 个种植体（直径 3.5 毫米）植入 28 名牙槽嵴尺寸狭窄（宽度为 3C4.5 毫米）的患者体内）无需增强程序并按常规加载。在种植体植入和基台连接时以及随访 1、2、3、5 和 10 年时拍摄口内 X 光片。在 10 年随访时（21 名患者；75 个种植体），进行了全口牙周图绘制，并记录了种​​植体周围角化组织的宽度和附着类型。两名经过校准的牙周病学家分析了种植体周围骨的变化。结果 10 年后，所有种植体均显示出成功的骨整合，累积存活率为 100%。种植体放置在牙槽嵴下 0.85 毫米 ± 0.89 毫米处。 10 年后，边缘骨位于种植体肩部顶端 1.59 ± 2.11 毫米处。在整个随访期间，年平均边缘骨丢失量为 0.094 毫米。此外，72% 的患者中，84% 的种植体在探诊时出现出血。结论 经过 10 年的功能负荷后，放置在颊口尺寸有限（≤4.5 毫米）的牙槽嵴中的种植体仅表现出最小的边缘骨丢失。