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：

---

4 mm 短植入物用于后萎缩颌骨康复：一项对 212 名患者进行回顾性研究，平均随访时间为 8.02 年


目的本研究旨在评估 4 mm 短种植体在后部严重垂直骨萎缩患者中中长期随访的临床疗效。材料和方法在后萎缩颌骨中使用 4 mm 短植入物进行康复的患者，并在负重后至少随访 3 年。为符合条件的患者收集数据，并评估每个种植体的边缘骨丢失 （MBL）。研究结果是种植体失败、MBL 和并发症。结果共纳入 212 例患者，植入 496 例，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），在每年接受更多次卫生治疗的患者中观察到的失败较少 （p < .001）。负荷 1 年后的平均 MBL 为 0.47 mm，10 年后增加到 0.59 mm;3 年后，未观察到 MBL 的统计学显着增加。上颌种植体的骨质流失比下颌骨种植体更大 （p < .001）。每年更频繁的专业口腔卫生课程导致 MBL 降低 （p < .001）。结论 4 mm 短植入物在长达 10 年的随访中显示出高生存率。它们的使用可以为后垂直骨萎缩患者提供固定的修复解决方案，最大限度地减少手术侵入性、康复时间和成本。