Comparison of the Attractive Forces of Dental Magnetic Attachments Fabricated by Cast- and Direct-Bonding Techniques
Comparison of the Attractive Forces of Dental Magnetic Attachments Fabricated by Cast- and Direct-Bonding Techniques
复制标题
通过铸造和直接粘合技术制造的牙科磁性附着体吸引力的比较
DOI：
10.2186/prp.6.46
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
A. Ohshima
中科院分区：
文献类型：
--
作者：
F. Tsuchida;Y. Suminaga;N. Takishin;T. Hosoi;A. Ohshima
目的：本研究评价了衔铁制造方法对磁性附着体吸引力的影响。方法：测量了Hyper Slim 3513磁性附着体系统（Neomax Material Co. Ltd.，Osaka，Japan）和Physio磁性附着系统35（Nissin Co. Ltd.，京都，日本）进行测量。通过铸造粘结（n=5）和直接粘结（n=5）技术制备试样。使用数字测力计（FGC-1，Nidec-Shimpo Corporation，京都，日本）测量吸引力。在α= 0.05的显著性水平下，对两种材料的吸引力进行t检验。结果：直接粘接法制备的牙体吸引力明显大于铸造粘接法制备的牙体（P<0.05）。结论：对两种不同方法制备的磁性附着体的吸引力进行了测量，结果表明，直接粘结法制备的磁性附着体具有比通过铸造粘结制造的显著更大的吸引力。我们的研究结果和以前的研究表明，保持器表面的平整度和光滑度可能会影响磁性附着体的吸引力。
Purpose: This study evaluated the effect of the method of keeper fabrication on the attractive force of the magnetic attachment.Methods: The attractive forces of the keepers of a Hyper Slim 3513 magnetic attachment system (Neomax Material Co. Ltd., Osaka, Japan) and Physio magnetic attachment system 35 (Nissin Co. Ltd., Kyoto, Japan) were measured. Specimens were prepared by the cast-bonding (n=5) and direct-bonding (n=5) techniques. The attractive force was measured using a digital force gauge (FGC-1, Nidec-Shimpo Corporation, Kyoto, Japan). The attractive force was statistically analyzed by the t-test at a significance level of α=0.05.Results: The direct-bonding technique yielded a keeper with significantly greater attractive force than that of the keeper obtained by the cast-bonding technique (P<0.05).Conclusion: Measurement of the attractive force of magnetic attachments fabricated by two different techniques revealed that the magnetic attachment fabricated by direct bonding possessed a significantly greater attractive force than that fabricated by cast bonding. Our results and those of previous studies suggest that the flatness and smoothness of the keeper surface may influence the attractive force of the magnetic attachment.