Private Practice in Implantology and Oral Rehabilitation in Vitoria, Vitoria, Spain; Foundation Eduardo Anitua, Vitoria, Spain.
J Clin Periodontol. 2014 Apr;41(4):404-11. doi: 10.1111/jcpe.12222. Epub 2014 Feb 19.
To evaluate the long-term clinical results of short implants in the posterior areas and analyse the possible influence of different variables on implant success rate and marginal bone loss (MBL).
A retrospective study design was used. Patients were included if they had received one or more short implants (≤8.5 mm long) in the posterior jaws at least 10 years earlier. All implants were embedded in plasma rich in growth factors (PRGF). The cumulative success rate was the primary outcome. MBL and the influence of different variables as secondary outcomes were assessed.
A total of 111 short implants (7.0, 7.5 and 8.5 mm in length) placed in 75 patients met the inclusion criteria. Of which, 94 were splinted to longer ones. The mean follow-up was 123.3 months (SD = 10.4 months). The mean crown-implant ratio was 1.4 (SD = 0.3). The mean MBL was 1.0 mm at mesial (SD = 0.7) and 0.9 mm (SD = 0.6) at distal aspect. One short implant failed. Success rate was 98.9% and 98.2% for the implant and patient-based analysis respectively. No relationship was observed between the studied variables and the MBL.
These clinical results support the use of short implants as an effective and safe long-term treatment option.
评估短种植体在后牙区的长期临床效果，并分析不同变量对种植体成功率和边缘骨吸收（MBL）的可能影响。
采用回顾性研究设计。如果患者在 10 年前的后牙区至少植入了一颗或多颗长度≤8.5mm 的短种植体，则将其纳入研究。所有种植体均嵌入富含生长因子的富血小板纤维蛋白（PRGF）中。累积成功率为主要结局。MBL 及其他不同变量的影响作为次要结局进行评估。
共纳入 75 名患者的 111 颗短种植体（长度分别为 7.0、7.5 和 8.5mm），其中 94 颗种植体与较长的种植体相连。平均随访时间为 123.3 个月（SD=10.4 个月）。平均冠-种植体比为 1.4（SD=0.3）。近中面平均 MBL 为 1.0mm（SD=0.7），远中面平均 MBL 为 0.9mm（SD=0.6）。一颗短种植体失败。基于种植体和患者的分析，成功率分别为 98.9%和 98.2%。未观察到研究变量与 MBL 之间存在相关性。
这些临床结果支持将短种植体作为一种有效且安全的长期治疗选择。
