PDF(Pubmed)
Abstract：
Incisal composite build-up shows a high failure susceptibility. The incorporation of fiber-reinforced composite (FRC) during composite restoration could improve its strength. Hence the study was planned to compare the effect of various positions of FRC on the strength of composite resin incisal build-ups.
In maxillary incisors (n = 90), 3 mm of the incisal edge was cut and teeth were categorized into three groups based on the location and number of fibers used during incisal composite build-up - Group I: composite resin; Group II: composite resin and a single fiber palatally and Group III: composite resin along with two fibers palatally.
The data showed that group II had the maximum load-bearing values followed by group I and group III.
Within the confines of our study, it can be concluded that the addition of FRC to the conventional incisal composite build-up increased the overall strength restoration. Such composite restoration reinforced with a single fiber on the palatal side showed the highest load-bearing capacity compared to two fibers reinforced and unreinforced composites. The common mode of failure in group I was in composite resin, in two fibers reinforced at fibers-composite junction, and in one fiber reinforced composite was in the remaining part of the tooth.
In maxillary incisors (n = 90), 3 mm of the incisal edge was cut and teeth were categorized into three groups based on the location and number of fibers used during incisal composite build-up - Group I: composite resin; Group II: composite resin and a single fiber palatally and Group III: composite resin along with two fibers palatally.
The data showed that group II had the maximum load-bearing values followed by group I and group III.
Within the confines of our study, it can be concluded that the addition of FRC to the conventional incisal composite build-up increased the overall strength restoration. Such composite restoration reinforced with a single fiber on the palatal side showed the highest load-bearing capacity compared to two fibers reinforced and unreinforced composites. The common mode of failure in group I was in composite resin, in two fibers reinforced at fibers-composite junction, and in one fiber reinforced composite was in the remaining part of the tooth.
摘要：
目的：切口复合堆积显示出较高的失效敏感性。在复合材料修复过程中加入纤维增强复合材料（FRC）可以提高其强度。因此，该研究计划比较FRC的各种位置对复合树脂切面堆积强度的影响。
方法：在上颌切牙（n=90）中，切割3mm的切缘，并根据切缘复合材料构建过程中使用的纤维的位置和数量将牙齿分为三组-组I：复合树脂；组II：复合树脂和单纤维，组III：复合树脂和双纤维。
结果：数据显示，II组具有最大的承重值，其次是I组和III组。
结论：在我们研究的范围内，可以得出结论，将FRC添加到常规切面复合材料中可以增加整体强度恢复。与两种纤维增强和未增强的复合材料相比，这种在pal侧使用单纤维增强的复合材料修复体显示出最高的承载能力。第一组常见的失效模式是复合树脂，在纤维-复合材料连接处增强的两根纤维中，在一个纤维增强复合材料中，牙齿的其余部分。
方法：在上颌切牙（n=90）中，切割3mm的切缘，并根据切缘复合材料构建过程中使用的纤维的位置和数量将牙齿分为三组-组I：复合树脂；组II：复合树脂和单纤维，组III：复合树脂和双纤维。
结果：数据显示，II组具有最大的承重值，其次是I组和III组。
结论：在我们研究的范围内，可以得出结论，将FRC添加到常规切面复合材料中可以增加整体强度恢复。与两种纤维增强和未增强的复合材料相比，这种在pal侧使用单纤维增强的复合材料修复体显示出最高的承载能力。第一组常见的失效模式是复合树脂，在纤维-复合材料连接处增强的两根纤维中，在一个纤维增强复合材料中，牙齿的其余部分。
