Uesugi Takashi, Shimoo Yoshiaki, Munakata Motohiro, Kataoka Yu, Sato Daisuke, Yamaguchi Kikue, Sanda Minoru, Fujimaki Michiya, Nakayama Kazuhisa, Watanabe Tae, Malo Paulo
Malo Dental & Medical Tokyo, Tokyo 104-0061, Japan.
Department of Implant Dentistry, Showa University School of Dentistry, Tokyo 145-8515, Japan.
Bioengineering (Basel). 2024 Feb 27;11(3):223. doi: 10.3390/bioengineering11030223.
Early implant failure occurring within 1 year after implantation has been attributed to various factors. Particularly, early failure can lead to challenges in maintaining a full-arch prosthetic device, necessitating prompt intervention, including reoperation. This study aimed to retrospectively examine implant- and patient-related factors and the effects of photofunctionalisation associated with early failure in patients who underwent treatment using the all-on-four concept in both the maxilla and mandible. We conducted this retrospective study comprising 561 patients with 2364 implants who underwent implant-supported immediate loading with fixed full-arch rehabilitation using the all-on-four concept. We aimed to assess the survival rate within 1 year after implantation and determine the risk factors influencing early failure. The 1-year survival rates after implantation were 97.1% (patient level) and 98.9% (implant level) for the maxilla and 98.5% (patient level) and 99.6% (implant level) for the mandible. There was a significant difference in the implant-level survival rates between the maxilla and mandible, with a lower rate in the maxilla ( = 0.043). The risk factors associated with early implant failure according to the all-on-four concept included the maxilla (implant level) and smoking (patient level). We could not find a significant effect of photofunctionalisation on early failure ( = 0.25) following this treatment protocol.
种植体植入后1年内发生的早期失败归因于多种因素。特别是，早期失败会给全牙弓修复装置的维持带来挑战，需要及时干预，包括再次手术。本研究旨在回顾性研究在上颌和下颌采用All-on-4概念进行治疗的患者中，与种植体和患者相关的因素以及光功能化与早期失败的关系。我们进行了这项回顾性研究，纳入了561例患者共2364颗种植体，这些患者采用All-on-4概念进行种植体支持的即刻负重并进行固定全牙弓修复。我们旨在评估植入后1年内的生存率，并确定影响早期失败的危险因素。上颌植入后1年的生存率在患者水平为97.1%，种植体水平为98.9%；下颌在患者水平为98.5%，种植体水平为99.6%。上颌和下颌种植体水平的生存率存在显著差异，上颌的生存率较低（P = 0.043）。根据All-on-4概念，与种植体早期失败相关的危险因素包括上颌（种植体水平）和吸烟（患者水平）。按照此治疗方案，我们未发现光功能化对早期失败有显著影响（P = 0.25）。
