Razdolsky Y, Sadowsky C, BeGole E A
Department of Orthodontics, College of Dentistry, University of Illinois, Chicago 60680.
Angle Orthod. 1989 Fall;59(3):181-5; discussion 186. doi: 10.1043/0003-3219(1989)059<0181:OCFOTA>2.0.CO;2.
Occlusal contacts in maximum intercuspation were examined in a sample of 40 patients at the end of active orthodontic treatment and again an average of 21 months later. An increase in the total number of contacts was due to more actual and near contacts on all posterior teeth and more near contacts on anterior teeth. When the results were compared to a previous short term study, continued settling of the occlusion occurred beyond an initial three months of retention. Few contacts changed their location between the occlusal inclined planes and central grooves, suggesting minimal settling of the occlusion in a buccolingual direction.
在40名患者的样本中，在正畸治疗结束时以及平均21个月后，检查了最大牙尖交错位时的咬合接触情况。接触总数的增加是由于所有后牙上实际接触和近接触增多，以及前牙上近接触增多。当将结果与之前的短期研究进行比较时，发现咬合在最初三个月的保持期之后仍在持续稳定。很少有接触点在咬合斜面和中央沟之间改变位置，这表明咬合在颊舌方向上的稳定程度最小。
