三种光复合牙体修复材料聚合深度的比较研究

I. Noenko, O. Pavlenko, Iurii Mochalov Iurii Mochalov
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After filling, the material was polymerized with an LED photopolymerizer directly in contact with the surface of the light guide for 40 seconds. Subsequently, the material was removed from the forms and the remains of the unpolymerized mass were removed from the surface of the polymerized cylinder of the composite with a metal dental sickle-shaped carrier (scarification test). The length of the polymerized cylinder was measured using an electronic micrometer.\nResults. 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引用次数: 0

摘要

本研究的目的是比较可流动光复合牙体修复材料在实验室中的聚合深度。材料和方法。三种可流动的散装填充光复合牙科修复材料-“SDR®后牙散装填充流动基板”,“Filtek™散装填充流动基板”和国产“Jen-Radiance Molar-FW”-被选择用于研究。每种材料制备10个黑色不透明薄壁聚氯乙烯模具,模具长10.00 mm,直径3.00 mm。模具从压缩机中风干,固定在垂直于下面金属不透明表面的氟塑料保持器中,随后沿着整个长度,以接触的方式沿着墙壁填充所研究的修复材料。填充后,将材料与LED光聚合剂直接接触光导表面聚合40秒。随后,用金属牙镰刀状载体从复合材料的聚合圆柱体表面移除材料,并将未聚合质量的残留物移除(划伤试验)。用电子千分尺测量了聚合圆柱的长度。因此,研究可流动体填充光复合材料“SDR®后向体填充可流动基”的聚合深度,“Filtek™Bulk Fill Flowable”和国产“Jen-Radiance Molar-FW”显示,在超过“宣布”的4毫米深度的地方观察到所有三种材料的聚合迹象,这可能是由于制备这些材料的配方的改进,有机成分和无机填料的透明度的优化,以及光活化剂在质量中的规则分布。“SDR”的聚合深度为7.38±0.17 (M = 7.30) mm,最小值为7.16 mm,最大值为7.71 mm。“Filtek Bulk Fill Flowable”聚合深度较小,为6.34±0.14 (М = 6.38) mm,最小值为6.05 mm,最大值为6.55 mm。国内类似物“Jen-Radiance Molar - FW”的聚合深度值更高,为8.03±0.19 (М = 7.98) mm,最小值为7.75 mm,最大值为8.41 mm。统计试验表明,“SDR”和“Jen-Radiance Molar-FW”在聚合深度上可能相似。所研究的三种可流动体填充光复合材料的聚合深度均大于4.00 mm。国产“Jen-Radiance Molar-FW”根据所调查的特征与“SDR”相似。
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COMPARATIVE STUDY OF POLYMERIZATION DEPTH OF THREE PHOTOCOMPOSITE DENTAL FILLING MATERIALS FOR BULK FILL RESTORATION
The objectives of the study was to compare the depth of polymerization of flowable photocomposite dental restorative materials for bulk fill tooth restorations in laboratory. Materials and methods. Three flowable bulk fill photocomposite dental restorative materials – "SDR® Posterior Bulk Fill Flowable Base," "Filtek™ Bulk Fill Flowable" and domestic "Jen-Radiance Molar-FW" – were chosen for the study. For each material, 10 black opaque thin-walled polyvinyl chloride molds with a length of 10.00 mm and a diameter of 3.00 mm were prepared. The molds were air-dried from a compressor and fixed in fluoroplastic retainers perpendicular to the metal opaque surface below and subsequently filled with the investigated restorative material along the entire length, in a contact manner, along the wall. After filling, the material was polymerized with an LED photopolymerizer directly in contact with the surface of the light guide for 40 seconds. Subsequently, the material was removed from the forms and the remains of the unpolymerized mass were removed from the surface of the polymerized cylinder of the composite with a metal dental sickle-shaped carrier (scarification test). The length of the polymerized cylinder was measured using an electronic micrometer. Results. Therefore, the study of the depth of polymerization of flowable bulk fill photocomposites "SDR® Posterior Bulk Fill Flowable Base", "Filtek™ Bulk Fill Flowable" and domestic "Jen-Radiance Molar-FW" showed that signs of polymerization of all three materials were observed in a depth of more than the "declared" four millimeters which may be explained by the improvement of the recipe for the preparation of such materials and the optimization of the transparency of the organic component and inorganic filler, as well as the regular distribution of photoactivators in the mass. "SDR" polymerized to a depth of 7.38 ± 0.17 (M = 7.30) mm, the minimum value was 7.16 mm and the maximum value was 7.71 mm. "Filtek Bulk Fill Flowable" polymerized to a lesser depth – on 6.34 ± 0.14 (М = 6.38) mm, the minimum value was 6.05 mm and the maximum value was 6.55 mm. The domestic analogue "Jen-Radiance Molar‑FW" showed even higher values of polymerization depth – 8.03 ± 0.19 (М = 7.98) mm, the minimum value was equal to 7.75 mm and the maximum value was 8.41 mm. Statistical tests showed probable similarity between "SDR" and "Jen-Radiance Molar-FW" in the depth of polymerization. Conclusions. All three studied flowable bulk fill photocomposite materials were polymerized to a depth greater than 4.00 mm. Domestic "Jen-Radiance Molar-FW" was similar to "SDR" according to the investigated feature.
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