Yokoi Miyuki, Abekura Hitoshi, Kagawa Kazuko, Morita Koji, Nishio Fumiko, Umehara Hanako, Kato Masamichi, Oda Ryoya, Doi Kazuya, Tsuga Kazuhiro
Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan.
Department of Dentistry and Oral-Maxillofacial Surgery, School of Medicine, Fujita Health University, Aichi, Japan.
Sci Rep. 2025 May 5;15(1):15627. doi: 10.1038/s41598-025-95075-x.
This study aimed to compare the 2-year clinical outcomes of polyetheretherketone (PEEK) and hybrid resin crowns placed on molars. Patients who received PEEK (P-Cr) and hybrid resin (H-Cr) crowns at Hiroshima University Hospital between 2016 and 2021 were evaluated in 2024 for crown conditions, including loss, fractures, and occlusal wear. No cases of crown debonding or fracture were observed in the P-Cr group. In contrast, the H-Cr group had 10 cases of loss and 4 cases of fractures. The P-Cr group demonstrated significantly fewer cases of crown debonding than the H-Cr group. Occlusal wear was observed in most crowns in the P-Cr group. Compared to the hybrid resin crowns, the PEEK crowns had a lower risk of fracture and debonding and retained long-term functionality; however, surface roughness and color changes were observed, suggesting that they may not be ideal for patients with particularly high esthetic demands. Nevertheless, physiological occlusal relationships and functionality were preserved, indicating that PEEK crowns could be a viable option for restoring molar defects.
本研究旨在比较聚醚醚酮（PEEK）冠和混合树脂冠修复磨牙的2年临床效果。2016年至2021年期间在广岛大学医院接受PEEK冠（P-Cr）和混合树脂冠（H-Cr）修复的患者于2024年对冠的情况进行评估，包括脱落、折断和咬合磨损。P-Cr组未观察到冠脱粘或折断的病例。相比之下，H-Cr组有10例脱落和4例折断。P-Cr组冠脱粘的病例明显少于H-Cr组。P-Cr组的大多数冠都观察到了咬合磨损。与混合树脂冠相比，PEEK冠骨折和脱粘的风险较低，并能保持长期功能；然而，观察到表面粗糙度和颜色变化，这表明它们可能不太适合对美观要求特别高的患者。尽管如此，生理咬合关系和功能得以保留，这表明PEEK冠可能是修复磨牙缺损的一个可行选择。
