Oleinikaitė Živilė, Skirbutis Gediminas, Rutkauskaitė Greta
Faculty of Odontology, Medical Academy, Lithuanian University of Health Sciences, Eiveniu 2, LT-50161 Kaunas, Lithuania.
Department of Prosthodontics, Faculty of Odontology, Lithuanian University of Health Sciences, Sukileliu Ave. 51, LT-50106 Kaunas, Lithuania.
Dent J (Basel). 2025 Jun 27;13(7):290. doi: 10.3390/dj13070290.
This in vitro trial aimed to investigate if there is a correlation between the homogeneities of different composite materials and their adhesion to glass fiber posts (GFPs). Twenty intact human upper jaw central incisors extracted due to periodontal diseases were selected for this trial. Endodontic treatment was performed according to ISO recommendations. A total of 4 mm of guttapercha was left in the apical region. Canals were prepared for post insertion. Teeth were randomly allocated into the two following groups depending on the core restorative material ( = 10): I-cores build up with light cured composite; II-cores build up with dual cured composite resin. GFPs were inserted and cores were rebuilt with different composite resins. Longitudinal cuts were made across the axis of the teeth and examined under a scanning electron microscope (SEM). Statistical analysis was accomplished using Mann-Whitney U and Spearman tests ( < 0.05). In the group where the number and size of pores at the interface of GFPs were analyzed, pores were found only in the specimens restored with the light-cured "bulk-filled" composite. In the group where the number and size of pores in the core material were analyzed, pores were found in specimens restored with both the light-cured "bulk-filled" composite and dual-cured resin composite. However, the dual-cured resin composite yielded better results in terms of core integration. There is no statistically significant correlation between the homogeneities of different composite materials and their adhesion to GFP.
这项体外试验旨在研究不同复合材料的均匀性与其对玻璃纤维桩（GFP）的黏附性之间是否存在相关性。本试验选取了20颗因牙周疾病而拔除的完整人类上颌中切牙。根据国际标准化组织（ISO）的建议进行根管治疗。在根尖区保留4毫米的牙胶。预备根管以插入桩。根据核心修复材料将牙齿随机分为以下两组（每组n = 10）：I组——用光固化复合材料构建核；II组——用双重固化复合树脂构建核。插入GFP并用不同的复合树脂重建核。沿牙齿轴线进行纵向切割，并在扫描电子显微镜（SEM）下检查。使用曼-惠特尼U检验和斯皮尔曼检验进行统计分析（P < 0.05）。在分析GFP界面处孔隙数量和大小的组中，仅在用光固化“大块充填”复合材料修复的标本中发现了孔隙。在分析核心材料中孔隙数量和大小的组中，在用光固化“大块充填”复合材料和双重固化树脂复合材料修复的标本中均发现了孔隙。然而，就核心整合而言，双重固化树脂复合材料产生了更好的结果。不同复合材料的均匀性与其对GFP的黏附性之间不存在统计学上的显著相关性。
