Retentive characteristics of different dental magnetic systems.
Retentive characteristics of different dental magnetic systems.
复制标题
不同牙科磁系统的保持特性。
DOI：
10.1016/s0022-3913(05)80386-5
复制
发表时间：
1995
期刊：
影响因子：
--
通讯作者：
Gülşen Can
中科院分区：
文献类型：
--
作者：
Funda Akaltan;Gülşen Can
It is necessary to recognize the retentive capabilities of magnetic systems to assess their clinical performance. This study determined the retentive characteristics of one open-field and two closed-field commercial dental magnetic systems. The effect of speed of separation and the space between the magnet and its keeper on the retention force were evaluated. The magnets and their respective keepers, embedded in acrylic resin blocks, were tested with fast and slow speeds of separation. The maximum retention values of the magnetic systems were tested with slow speed of separation. The fast speed of separation was designed to reflect mandibular movement. Various spaces were developed between themagnets and their respective keepers, and magnetic systems were tested only in slow speed of separation. The fast speed of separation dramatically lowered the retention force of each magnetic system. As the space increased between the magnet and keeper, the retention values diminished rapidly. While closed-field systems demonstrated higher retentive forces than the open-field system, the open-field system was less affected by the various spaces.
