Akalιn T T, Bozkurt F O, Tuncer A K, Bağ H G, Özcan M
Istanbul Medipol University, Department of Restorative Dentistry, School of Dentistry, Istanbul, Turkey.
Bezmialem University, School Of Dentistry, Department of Endodontics, Istanbul, Turkey.
Eur J Prosthodont Restor Dent. 2019 Feb 22;27(1):39-47. doi: 10.1922/EJPRD_01638Akalin09.
This study evaluated the clinical performance of direct restorations made of nanofilled and microhybrid resin composites in endodontically treated teeth. Twenty patients (11 males, 9 females; mean age: 34.2±10) that met the inclusion criteria received a total of 48 restorations. After employing etch-and-rinse adhesive system, one dentist placed all restorations using either a nanofilled (Filtek Ultimate) or microhybrid (Filtek Z250) resin composite. The restorations were clinically reviewed at baseline, 6 months, and up to 2 years using the modified United States Public Health Service (USPHS) criteria. The changes were analyzed using the McNemar test and marginal homogeneity tests (p⟨0.05). The mean observation period was 17.4 months. With respect to color match, marginal adaptation, secondary caries, and surface texture, no significant differences were found between the two restorative materials (p⟩0.05). Most restorations yielded alpha or bravo scores with respect to the evaluation criteria. Five restorations failed due to chipping up to 2 years (1 microhybrid at 6 m, and 3 at 2 years; 1 nanofilled at 2 y) and were repaired. One complete replacement and one extraction due to endodontic complications were needed for 2 microhybrid resin group at 2 years.
本研究评估了纳米填充和微混合树脂复合材料制成的直接修复体在根管治疗牙齿中的临床性能。20名符合纳入标准的患者（11名男性，9名女性；平均年龄：34.2±10岁）共接受了48次修复。在使用酸蚀冲洗粘结系统后，由一名牙医使用纳米填充树脂复合材料（Filtek Ultimate）或微混合树脂复合材料（Filtek Z250）进行所有修复。使用改良的美国公共卫生服务（USPHS）标准在基线、6个月和长达2年时对修复体进行临床评估。使用McNemar检验和边际齐性检验分析变化情况（p⟨0.05）。平均观察期为17.4个月。在颜色匹配、边缘适应性、继发龋和表面质地方面，两种修复材料之间未发现显著差异（p⟩0.05）。大多数修复体在评估标准方面获得了α或β评分。截至2年时，有5个修复体因崩裂而失败（6个月时1个微混合树脂修复体，2年时3个；2年时1个纳米填充树脂修复体）并进行了修复。2年时，微混合树脂组有2个修复体因牙髓并发症需要进行一次完全替换和一次拔牙。
