Misilli Tuğba, Gönülol Nihan
Balıkesir Oral and Dental Health Center, Balıkesir, Turkey.
Ondokuz Mayıs University, Faculty of Dentistry, Department of Restorative Dentistry, Samsun, Turkey.
Braz Oral Res. 2017 Sep 28;31:e80. doi: 10.1590/1807-3107BOR-2017.vol31.0080.
The aim of this study was to compare the degree of water sorption and solubility in bulk-fills after curing with a polywave light source. A total of 120 disc-shaped specimens (8 mm diameter; 4 mm depth) were prepared from three regular bulk-fill materials (X-tra Fil, Tetric N-Ceram Bulk Fill, SonicFill), and a control material (Filtek Z250), cured in 3 different modes (standard: 1000 mW/cm2-20 s; high power: 1400 mW/cm2-12 s; xtra power: 3200 mW/cm2-6 s) using a third generation light-emitting diode light curing unit. Water sorption and solubility levels of the specimens were measured according to the ISO 4049:2009 specification after storing in distilled water for 30 days. Data were analyzed using two-way ANOVA and Tukey's post-hoc test (p < 0.05). The Z250 sample exposed to high power presented a higher sorption compared to the X-tra Fil and SonicFill samples. In xtra power mode, the values of Z250 and SonicFill were similar to each other and higher compared to those of X-tra Fil. Only SonicFill exhibited significantly different sorption values depending on the curing mode, the highest of which was achieved when using the xtra power mode. The highest solubility values were obtained for SonicFill. No statistically significant differences were found among other groups. No significant correlation was detected between water sorption and solubility. The traditional composite group exhibited a higher water sorption values than the bulk-fills. The reduction in polymerization time significantly increased the sorption of SonicFill. SonicFill showed the highest water solubility value among the composites tested.
本研究的目的是比较用多波光源固化后大块填料的吸水率和溶解度。从三种常规大块填料材料（X-tra Fil、Tetric N-Ceram Bulk Fill、SonicFill）和一种对照材料（Filtek Z250）制备了总共120个圆盘形试样（直径8毫米；深度4毫米），使用第三代发光二极管光固化机以3种不同模式（标准：1000 mW/cm² - 20秒；高功率：1400 mW/cm² - 12秒；超高功率：3200 mW/cm² - 6秒）进行固化。将试样在蒸馏水中储存30天后，根据ISO 4049:2009规范测量其吸水率和溶解度水平。使用双向方差分析和Tukey事后检验（p < 0.05）对数据进行分析。与X-tra Fil和SonicFill样品相比，暴露于高功率的Z250样品表现出更高的吸水率。在超高功率模式下，Z250和SonicFill的值彼此相似，且高于X-tra Fil。只有SonicFill根据固化模式表现出显著不同的吸水率值，其中最高值是在使用超高功率模式时获得的。SonicFill获得了最高的溶解度值。在其他组之间未发现统计学上的显著差异。未检测到吸水率和溶解度之间的显著相关性。传统复合树脂组的吸水率值高于大块填料。聚合时间的减少显著增加了SonicFill的吸水率。在测试的复合材料中，SonicFill表现出最高的水溶解度值。
