Montero Javier, Guadilla Yasmina, Flores Javier, Pardal-Peláez Beatriz, Quispe-López Norberto, Gómez-Polo Cristina, Dib Abraham
Department of Surgery, Faculty of Medicine, University of Salamanca, 37007 Salamanca, Spain.
J Clin Med. 2021 Oct 5;10(19):4589. doi: 10.3390/jcm10194589.
This study aims to assess the treatment outcomes (functional and subjective) of full-arch fixed hybrid rehabilitations made of PEEK (poly-ether-ether-ketone) with milled crowns of nano-filled composite (NFC) supported on four to six implants. In this randomized clinical trial, 34 edentate patients in the upper and/or the lower jaws were treated with the fixed hybrid dentures. In 16 patients (47.1% of the sample), the implants were loaded immediately (IL) by means of a provisional fixed rehabilitation made of PMMA (polymethylmethacrylate) screwed on Multi-Unit (MU) abutments connected after emplacement of the implant; however, in the counterparts ( = 18) these MU abutments were covered by healing caps and were left unloaded during two months (conventional loading protocol-CL), when all patients received a fixed hybrid PEEK-NFC rehabilitation on the upper and/or the lower jaw. Treatment outcomes were assessed 12 months after prostheses delivery. Functional outcomes were calculated according to masticatory performance, estimated by mixing ability tests of two colored chewing gums after ten chewing strokes, by the occlusal force/area recorded by pressure-sensitive sheets, and by electromyography of masseters and temporal muscles at maximum biteforce. The subjective outcomes of the treatment were assessed using both the oral satisfaction scale (visual analog scale) and the Spanish version of the Oral Health Impact Profile (OHIP-20). The findings of the present study showed that treatment with fixed PEEK-NFC hybrid prostheses significantly improved the masticatory performance, bite force, occlusal pattern, quality of life, and satisfaction, with the IL group being those with significantly higher occlusal bite forces and greater satisfaction in comparison with CL group. It should be concluded that PEEK-NFC hybrid prostheses can improve several patient-centered outcomes and that loading protocol significantly affects the patient's self-rated satisfaction.
本研究旨在评估由聚醚醚酮（PEEK）制成、带有纳米复合树脂（NFC）铣削牙冠、并由4至6颗种植体支持的全牙弓固定混合修复体的治疗效果（功能和主观方面）。在这项随机临床试验中，34例上下颌无牙患者接受了固定混合义齿治疗。16例患者（占样本的47.1%）通过在种植体植入后连接的多单位（MU）基台上拧上由聚甲基丙烯酸甲酯（PMMA）制成的临时固定修复体，立即对种植体进行加载（IL）；然而，在另外18例患者中，这些MU基台用愈合帽覆盖，并在两个月内不进行加载（传统加载方案-CL），在此期间所有患者接受上下颌的固定混合PEEK-NFC修复体。在义齿交付12个月后评估治疗效果。根据咀嚼性能计算功能结果，咀嚼性能通过两种彩色口香糖咀嚼十次后的混合能力测试、压敏片记录的咬合力/面积以及最大咬合力时咬肌和颞肌的肌电图进行估计。使用口腔满意度量表（视觉模拟量表）和西班牙语版的口腔健康影响概况（OHIP-20）评估治疗的主观结果。本研究结果表明，使用固定PEEK-NFC混合修复体治疗可显著改善咀嚼性能、咬合力、咬合模式、生活质量和满意度，与CL组相比，IL组的咬合咬合力显著更高，满意度也更高。应该得出结论，PEEK-NFC混合修复体可以改善几个以患者为中心的结果，并且加载方案显著影响患者的自评满意度。
