Healey D L, Chandler N P
University of Otago, School of Dentistry, Dunedin, New Zealand.
J Prosthet Dent. 1991 Dec;66(6):727-9. doi: 10.1016/0022-3913(91)90403-j.
Experiments were performed to determine the effect of pin channel preparation with standard and reduction speed handpieces, and pin seating by hand and with motor drive. The greatest retention was achieved by preparation with a standard handpiece at 6000 rpm, and manual pin placement with a hand driver. The most consistent retention values were achieved using the reduction handpiece. All preparation and placement combinations examined produced a clinically acceptable result.
进行了实验，以确定使用标准和减速手机进行针道预备以及手动和电动植入针的效果。使用转速为6000转/分钟的标准手机预备并使用手动驱动器手动植入针时，固位力最强。使用减速手机时获得的固位值最稳定。所检查的所有预备和植入组合均产生了临床上可接受的结果。
