Polat O D, Eyüboğlu T F, Özcan M
Private Practitioner, Usteristrasse 14, 8001 Zurich, Switzerland.
Department of Endodontics, Istanbul Medipol University, School of Dentistry, Istanbul, Turkiye.
Eur J Prosthodont Restor Dent. 2024 Nov 29;32(4):392-397. doi: 10.1922/EJPRD_2525Polat06.
This study evaluated the clinical performance of a polymer-infiltrated ceramic-network (PICN) material for up to 3 years. Patients (N=286) received 581 indirect restorations as crowns (417), overlays (131), and inlays/veneers (33) fabricated using the PICN (VITA Enamic) by CAD/CAM procedures using intraoral scanning (Cerec Omnicam) and milling systems (Cerec MC XL). The restorations were evaluated annually and in case of complications. Data were analyzed using Kaplan-Meier estimate. Complications were classified as biological or technical failures. Until final recall (mean observation period: 18.3 months) with a dropout rate of 4.8%, 3 biological and 10 technical complications were observed. The overall success rate of the placed restorations was 97.7%. Biological complications included pulpitis and pulp necrosis. Technical complications were debonding (n=7) and fracture (n=3). PICN materials can be used as an alternative to lithium-disilicate or zirconium dioxide for single tooth reconstructions, providing that early failures included debonding and fractures.
本研究对一种聚合物渗透陶瓷网络（PICN）材料长达3年的临床性能进行了评估。患者（N = 286）接受了581颗间接修复体，包括全冠（417颗）、高嵌体（131颗）以及嵌体/贴面（33颗），这些修复体采用CAD/CAM程序，通过口内扫描（Cerec Omnicam）和铣削系统（Cerec MC XL），使用PICN（维他瓷可美）制作而成。每年对修复体进行评估，并在出现并发症时进行评估。数据采用Kaplan-Meier估计法进行分析。并发症分为生物学或技术失败。直至最终回访（平均观察期：18.3个月），失访率为4.8%，观察到3例生物学并发症和10例技术并发症。所放置修复体的总体成功率为97.7%。生物学并发症包括牙髓炎和牙髓坏死。技术并发症为脱粘（n = 7）和骨折（n = 3）。PICN材料可作为单颗牙齿修复中锂硅酸盐或二氧化锆的替代材料，但早期失败包括脱粘和骨折。
