ObjectiveThis study aimed to assess clinical efficacy of 4‐mm‐short implants in patients with posterior severe vertical bone atrophy in the medium‐ and long‐term follow‐up.Materials and MethodsPatients rehabilitated with 4‐mm‐short implants in the posterior atrophic jaws, with a minimum follow‐up of 3 years post‐loading, were included in the study. Data were collected for eligible patients, and marginal bone loss (MBL) for each implant was evaluated. The research outcomes were implant failure, MBL and complications.ResultsA total of 212 patients with 496 implants were included, resulting in a mean follow‐up of 8.02 ± 2.17 years. The implant survival rate was 95.36% (95% CI: 93.12%–97.04%). More implant failures were observed in the maxilla (p = .02) and fewer failures were observed in patients undergoing more number of hygienic sessions per year (p < .001). The average MBL after 1‐year‐loading was 0.47 mm, increasing to 0.59 mm after 10 years; after 3 years no statistically significant increase in MBL was observed. Maxillary implants showed greater bone loss than mandibular ones (p < .001). More frequent professional oral hygiene sessions per year resulted being related with reduced MBL (p < .001).ConclusionsFour‐mm‐short implants showed high survival rates with an up to 10‐year follow‐up. Their use can offer a fixed prosthetic solution for patients with posterior vertical bone atrophy, minimizing surgical invasiveness, rehabilitative times and costs.

中文翻译：

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4 毫米短种植体修复后牙萎缩：对 212 名患者进行的回顾性研究，平均随访时间为 8.02 年


目的本研究旨在评估4毫米短种植体治疗后牙严重垂直骨萎缩患者的中长期随访临床疗效。材料与方法4毫米短种植体修复后牙萎缩颌骨的患者，加载后至少随访 3 年，被纳入该研究。收集符合条件的患者的数据，并评估每个种植体的边缘骨丢失（MBL）。研究结果为种植体失败、MBL 和并发症。 结果 共有 212 名患者植入 496 个种植体，平均随访时间为 8.02 ± 2.17 年。种植体存活率为95.36%（95% CI：93.12%–97.04%）。在上颌骨中观察到更多的种植体失败（ p = .02），并且每年接受更多次数卫生治疗的患者观察到失败次数更少（ p < .001)。 1年加载后的平均MBL为0.47毫米，10年后增加至0.59毫米； 3年后，没有观察到MBL有统计学上的显着增加。上颌种植体比下颌种植体显示出更多的骨质流失（ p < .001)。每年更频繁的专业口腔卫生课程与 MBL 的减少有关（ p < .001)。结论 4 毫米短种植体在长达 10 年的随访中显示出较高的存活率。它们的使用可以为后部垂直骨萎缩的患者提供固定的假体解决方案，最大限度地减少手术侵入性、康复时间和成本。