Associate Professor, Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia; Associate Professor, Department of Prosthodontics, Faculty of Dentistry, University of Toronto, Toronto, Canada.
Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, University of Toronto, Toronto, Canada.
J Prosthet Dent. 2019 Jun;121(6):911-915. doi: 10.1016/j.prosdent.2018.10.001. Epub 2019 Jan 31.
Long-term evidence of immediate loading of dental implants with bar overdentures is lacking.
The purpose of this clinical study was to assess the clinical outcomes of immediate and conventional loading protocols of mandibular overdentures supported by 2 dental implants 14 years after initial placement.
Two groups of edentulous patients who received two TiUnite implants were enrolled in this study. In the experimental group (n=35), the implants were loaded immediately. In the control group (n=16), the conventional delayed loading protocol was followed. Participants of both the groups were treated with overdentures supported by a standardized resilient bar mechanism. Clinical oral health-related quality of life and patient satisfaction outcomes were recorded for 14 years after initial placement of implants and measured at various stages of treatment.
Significant improvements in all outcomes were observed in both the groups compared with baseline, and this improvement was sustained over the duration of the study. No differences were noted in any of the study outcomes between the 2 groups.
Both the loading approaches provide comparable short- and long-term results. The results of this study confirm that immediate loading of implant-supported overdentures is a predictable treatment approach. Future studies should focus on assessing long-term clinical outcomes with mandibular overdentures in nonsplinted applications.
缺乏牙科种植体即刻负载杆式覆盖义齿的长期证据。
本临床研究旨在评估下颌覆盖义齿的即刻和常规负载方案在初始植入 14 年后的临床效果。
本研究纳入了两组接受 2 颗 TiUnite 种植体的无牙颌患者。在实验组(n=35)中,种植体即刻负载。在对照组(n=16)中,遵循常规延迟加载方案。两组患者均采用标准化弹性杆机制支持的覆盖义齿治疗。在植入后 14 年内记录了与临床口腔健康相关的生活质量和患者满意度的结果,并在治疗的各个阶段进行了测量。
与基线相比,两组的所有结果均有显著改善,这种改善在研究期间持续存在。两组在任何研究结果方面均无差异。
两种负载方法都提供了短期和长期相似的结果。本研究的结果证实,种植体支持的覆盖义齿即刻负载是一种可预测的治疗方法。未来的研究应侧重于评估非夹板应用下颌覆盖义齿的长期临床效果。