Kaprielian N, Lagneau C, Zydowicz N, Lissac M, Grosgogeat B
Laboratoire d'Etude des Interfaces et des Biofilms en Odontologie, EA637 Université Claude Bernard, Lyon I, Faculté d'Odontologie, rue Guillaume Paradin, 69372 Lyon cedex 08, France.
Biomed Mater Eng. 2005;15(6):483-93.
The aim of this study is to assess the influence of plasma lamps on the properties of the composites compared to the influence of conventional polymerization. Vickers hardness tests, three-point bending tests, and measurement of the shrinkage marginal gap by scanning electron microscopy were carried out on three resin composites (Tetric Ceram, Z-100 and Inten-S) irradiated with to lamps (Flipo) plasma and Astralis 7 halogen lamps). With a 3-second exposure, the results of Vickers hardness and resistance to flexion (excepting values for Z-100) were lower for the composites cured by the Flipo plasma lamp, than after 40-second curing by the conventional halogen lamp (Astralis 7), notably at a depth of 3 mm. With a 5-second exposure the results of Vickers hardness and resistance to flexion obtained using the plasma lamp approached those obtained by using the halogen lamp. Whatever the polymerization protocol used, the measurements of the gap between the tooth and the filling are very similar except for Z-100/Astralis 7, for which shrinkage results are more important. For any one resin composite and lamp used, the shrinkage values obtained at a depth of 4 mm are twice higher than those obtained at the surface. In conclusion, for a 3-second exposure the level of polymerization obtained by plasma curing is lower than the one obtained by halogen curing, particularly in depth. On the other hand, 5-second plasma curing results recommends the use of this kind of lamp.
本研究的目的是评估与传统聚合作用的影响相比，等离子灯对复合材料性能的影响。对三种树脂复合材料（Tetric Ceram、Z-100和Inten-S）进行了维氏硬度测试、三点弯曲测试，并通过扫描电子显微镜测量了收缩边缘间隙，这些复合材料分别用两种灯（Flipo等离子灯和Astralis 7卤素灯）进行照射。在3秒曝光时，用Flipo等离子灯固化的复合材料的维氏硬度和抗弯曲性结果（Z-100的值除外）低于用传统卤素灯（Astralis 7）固化40秒后的结果，特别是在3毫米深度处。在5秒曝光时，使用等离子灯获得的维氏硬度和抗弯曲性结果接近使用卤素灯获得的结果。无论使用何种聚合方案，牙齿与填充物之间间隙的测量结果都非常相似，Z-100/Astralis 7除外，其收缩结果更为明显。对于任何一种使用的树脂复合材料和灯，在4毫米深度处获得的收缩值是在表面获得的收缩值的两倍。总之，对于3秒曝光，等离子固化获得的聚合水平低于卤素固化获得的聚合水平，尤其是在深度方面。另一方面，5秒等离子固化的结果推荐使用这种灯。
