A novel technique for preparing dental CAD/CAM composite resin blocks using the filler press and monomer infiltration method
A novel technique for preparing dental CAD/CAM composite resin blocks using the filler press and monomer infiltration method
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DOI：
10.4012/dmj.2013-329
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发表时间：
2014-04-01
影响因子：
2.5
通讯作者：
Hayakawa, Tohru
中科院分区：
文献类型：
--
作者：
Okada, Koichi;Kameya, Takehiro;Hayakawa, Tohru
作者提出了一种制备牙科CAD/CAM复合树脂块的新技术：填料加压和单体渗透法（FPMI）。在该方法中，表面处理的填料被模塑成绿色体，其中填料颗粒被压缩以形成团聚体。然后在聚合之前用单体混合物渗透绿色体。可以使用这种方法生产CRB，通过该方法，致密填充的纳米填料均匀分散。填料成型的压力越大，CRB中的填料越多，导致在高压下CRB非常致密。通过施加170 MPa的压力获得的CRB含有高达70重量%的纳米二氧化硅填料，并且也具有200 MPa的弯曲强度。预计使用FPMI方法获得的CRB将用作用于制造永久冠修复的牙科CAD/CAM材料。
The authors have developed a new technique for preparing dental CAD/CAM composite resin blocks (CRBs): the filler press and monomer infiltration (FPMI) method. In this method, surface-treated filler is molded into a green body in which the filler particles are compressed to form an agglomeration. The green body is then infiltrated with a monomer mixture before being polymerized. It is possible to produce CRBs using this method through which densely packed nanofiller is uniformly dispersed. The greater the pressure of the filler molding, the more filler in the CRB, resulting at high pressure in a very dense CRB. A CRB obtained by applying 170 MPa of pressure contained up to 70 wt% of nano-silica filler and had a flexural strength of 200 MPa, as well. It is anticipated that CRBs obtained using the FPMI method will be useful as a dental CAD/CAM material for the fabrication of permanent crown restorations.