Clinic of Reconstructive Dentistry Center of Dental Medicine, University of Zurich, Zürich, Switzerland.
Akademie für Orale Implantologie, Private Practice, Vienna, Austria.
J Clin Periodontol. 2024 Apr;51(4):499-509. doi: 10.1111/jcpe.13954. Epub 2024 Jan 31.
To compare implant survival and complication rates between shorter and standard-length implants with sinus augmentation and restored with single crowns, at 10 years of loading.
One-hundred and one patients (137 implants) with a ridge height of 5-7 mm in the posterior maxilla were randomly assigned to two treatment modalities: shorter implants (6 mm) (group short [GS]) or standard-length implants (11-15 mm) with sinus grafting (group graft [GG]). Following the insertion of final restorations, patients were regularly recalled for up to 10 years. Assessed outcomes encompassed implant survival, marginal bone levels (MBLs), biological and technical parameters and patient-reported outcome measures (OHIP-49 = Oral Health Impact Profile). Non-parametric statistical analysis was used to analyse the data.
For the 5- to 10-year follow-up period, 77 patients with 105 implants (GS: 36 patients/48 implants; GG: 41/57) were available for re-examination (drop-out rate 21%). Implant survival rates at the patient level were 96.0% (GS; 2 failures) and 100% (GG) (inter-group p = .24). Median MBLs amounted to 0.00 mm (min 0.00; max 3.25; GS) and 0.00 mm (min 0.00; max 4.55; GG) (inter-group p = .73). Technical complications predominantly occurred within the first 5 years (inter-group p > .05). Peri-implantitis rates were 4.2% (GS) and 13.3% (GG) (intergroup p = .37). Median OHIP-49 scores were 7.00 (0.00; 39.00; GS) and 9.00 (0.00; 196; GG) (inter-group p = .61) at 10 years.
Based on similar 10-year implant survival rates, reduced patient morbidity and lower costs, the use of shorter dental implants might well serve as an alternative treatment concept to longer implants placed in conjunction with sinus grafting for patients with a limited ridge height in the posterior maxilla. Study register: https://clinicaltrials.gov/ct2/show/NCT01030523.
比较在接受窦腔增高术并使用单冠修复的情况下，较短和标准长度种植体在 10 年负荷下的种植体存活率和并发症发生率。
101 名上颌后牙牙槽嵴高度为 5-7mm 的患者（137 枚种植体）被随机分为两组：较短种植体（6mm）组（GS 组）或标准长度种植体（11-15mm）联合窦腔植骨组（GG 组）。在最终修复体植入后，患者定期随访长达 10 年。评估的结果包括种植体存活率、边缘骨吸收水平（MBLs）、生物学和技术参数以及患者报告的结果测量（OHIP-49=口腔健康影响概况）。使用非参数统计分析来分析数据。
在 5 至 10 年的随访期间，77 名患者（GS 组：36 名患者/48 枚种植体；GG 组：41 名患者/57 枚种植体）接受了复查（脱落率为 21%）。患者水平的种植体存活率分别为 96.0%（GS 组：2 例失败）和 100%（GG 组）（组间 p=0.24）。MBLs 的中位数分别为 0.00mm（最小值 0.00mm；最大值 3.25mm；GS 组）和 0.00mm（最小值 0.00mm；最大值 4.55mm；GG 组）（组间 p=0.73）。技术并发症主要发生在最初的 5 年内（组间 p>0.05）。种植体周围炎的发生率分别为 4.2%（GS 组）和 13.3%（GG 组）（组间 p=0.37）。10 年时，OHIP-49 评分的中位数分别为 7.00（0.00；39.00；GS 组）和 9.00（0.00；196；GG 组）（组间 p=0.61）。
基于相似的 10 年种植体存活率、降低的患者发病率和更低的成本，对于上颌后牙牙槽嵴高度有限的患者，使用较短的牙科种植体可能是一种替代治疗方案，替代与窦腔增高术联合使用的较长种植体。研究注册：https://clinicaltrials.gov/ct2/show/NCT01030523。
