Department of Prosthodontics, Faculty of Dentistry, Near East University, Mersin10, Turkey.
J Esthet Restor Dent. 2018 Sep;30(5):434-441. doi: 10.1111/jerd.12382. Epub 2018 Jun 19.
This study evaluated the optical properties of contemporary monolithic CAD-CAM materials with different chemical compositions.
Totally, 210 rectangular-shaped, A2 shade specimens (12 × 14 mm) were fabricated from VITA Suprinity T, VITA Enamic T, VITA Mark II, GC Cerasmart LT, Lava Ultimate LT, IPS e.max CAD LT and Prettau Anterior blocks and polished to thicknesses of 0.5 ± 0.01 and 1.0 ± 0.01 mm (n = 15 each material). A dental spectrophotometer (VITA Easyshade Compact) was used to calculate the translucency parameter (TP) and opalescence parameter (OP) values of all tested materials. Statistical analysis was performed using one-way analysis of variance, multiple comparison Tukey's test and independent samples t-test (P = .05).
In the 0.5-mm thickness group, GC Cerasmart and Prettau Anterior had the highest and lowest translucency values, respectively. VITA Suprinity had the highest OP value, whereas VITA Mark II and Prettau Anterior had the lowest OP values. In the 1.0-mm thickness group, GC Cerasmart and Lava Ultimate had the highest translucency, whereas Prettau Anterior had the lowest translucency. VITA Suprinity and Prettau Anterior had the highest and lowest OP values, respectively.
The optical properties of monolithic restorative materials were influenced by the type and thickness of the material used.
According to the results of this study, monolithic materials with different chemical compositions have revealed different optical properties. To obtain esthetic restorations and provide shade matching with natural dentition especially for anterior teeth, monolithic materials should be carefully chosen.
本研究评估了具有不同化学成分的当代整体式 CAD-CAM 材料的光学性能。
总共从 VITA Suprinity T、VITA Enamic T、VITA Mark II、GC Cerasmart LT、Lava Ultimate LT、IPS e.max CAD LT 和 Prettau Anterior 块中制作了 210 个矩形、A2 色标本（12×14mm），并将其抛光至厚度为 0.5±0.01 和 1.0±0.01mm（每种材料各 15 个）。使用牙科分光光度计（VITA Easyshade Compact）计算所有测试材料的半透明度参数（TP）和乳光参数（OP）值。使用单因素方差分析、多重比较 Tukey 检验和独立样本 t 检验进行统计分析（P=0.05）。
在 0.5mm 厚度组中，GC Cerasmart 和 Prettau Anterior 的半透明度值最高和最低。VITA Suprinity 的 OP 值最高，而 VITA Mark II 和 Prettau Anterior 的 OP 值最低。在 1.0mm 厚度组中，GC Cerasmart 和 Lava Ultimate 的半透明度最高，而 Prettau Anterior 的半透明度最低。VITA Suprinity 和 Prettau Anterior 的 OP 值最高和最低。
整体修复材料的光学性能受所用材料的类型和厚度的影响。
根据本研究的结果，具有不同化学成分的整体材料表现出不同的光学性能。为了获得美观的修复体并提供与天然牙齿特别是前牙相匹配的色调，应仔细选择整体材料。
