Tallarico Marco, Meloni Silvio Mario
Int J Oral Maxillofac Implants. 2017 Sep/Oct;32(5):1162-1171. doi: 10.11607/jomi.5930.
To report survival rate, early surgical template-related complications, and prevalence of peri-implantitis of dental implants placed in private practices using computer-guided, template-assisted surgery and followed between 1 and 10 years.
The present retrospective multicenter study evaluated data collected from fully or partially edentulous patients, with anodized-surface implants placed using computer-guided, template-assisted surgery between January 2006 and December 2015. The outcome measures were implant cumulative survival rate (CSR), early surgical complications involving the surgical template, and prevalence of peri-implantitis.
A total of 694 implants were placed in 141 patients. Ten patients (7.1%) with 48 implants (6.9%) dropped out during the study period. One hundred seventeen patients, who received 121 surgical and prosthetic procedures, were treated according to a double-scan protocol, while the remaining 24 patients were treated by using the integrated treatment workflow. Most of the implants were immediately loaded (528 implants, 76.1%; 112 patients, 79.4%). Overall, 107 complete full-arch restorations (supported by four to eight implants each) were delivered in 103 patients (73%) with 595 implants (85.7%), while 13 single and 30 partial restorations (two to five implants each) were delivered in 38 patients (27%) with 99 implants (14.3%). Patients were followed for up to 10 years (mean: 58.2 months, range: 12 to 120 months). Implant- and patient-level CSR (Kaplan-Meier estimation) at the 10-year follow-up was 97.4% (95% CI: 1.0309 to 0.9161) and 92.1% (95% CI: 1.1575 to 0.6836), respectively. All failed implants were lost before definitive prosthesis delivery (early failure). Ten (7.1%) minor template-related complications were experienced and resolved chairside. Over the entire follow-up period, four patients (2.8%) with 12 implants (1.7%) showed signs of peri-implantitis at the 1- (four implants), 2- (four implants), and 4-year (four implants) visits.
High long-term survival rates and low complications and prevalence of peri-implantitis were observed for a large cohort of anodized-surface implants placed in private practices. Further studies are needed to confirm these preliminary results.
报告在私人诊所采用计算机引导模板辅助手术植入的牙种植体1至10年的生存率、早期与手术模板相关的并发症以及种植体周围炎的患病率。
本回顾性多中心研究评估了2006年1月至2015年12月期间，采用计算机引导模板辅助手术为全口或部分牙列缺失患者植入阳极氧化表面种植体所收集的数据。观察指标为种植体累积生存率（CSR）、涉及手术模板的早期手术并发症以及种植体周围炎的患病率。
共为141例患者植入694颗种植体。在研究期间，10例患者（7.1%）的48颗种植体（6.9%）失访。117例接受121次手术和修复程序的患者按照双扫描方案进行治疗，其余24例患者采用综合治疗流程。大多数种植体即刻负重（528颗种植体，76.1%；112例患者，79.4%）。总体而言，103例患者（73%）的595颗种植体（85.7%）完成了107例全牙弓修复（每个修复由4至8颗种植体支持），38例患者（27%）的99颗种植体（14.3%）完成了13例单颗修复和30例局部修复（每个修复由2至5颗种植体支持）。对患者进行了长达10年的随访（平均：58.2个月，范围：12至120个月）。10年随访时种植体水平和患者水平的CSR（Kaplan-Meier估计）分别为97.（95%CI：1.0309至0.9161）和92.1%（95%CI：1.1575至0.6836）。所有失败种植体均在最终修复体交付前丢失（早期失败）。出现了10例（7.1%）与模板相关的轻微并发症，并在椅旁得到解决。在整个随访期间，4例患者（2.8%）的12颗种植体（1.7%）在第1年（4颗种植体）、第2年（4颗种植体）和第4年（4颗种植体）的随访中出现种植体周围炎迹象。
对于在私人诊所植入的大量阳极氧化表面种植体，观察到较高的长期生存率、较低的并发症发生率和种植体周围炎患病率。需要进一步研究来证实这些初步结果。
