Barwart O, Schamberger D, Richter M, Ulmer H
Abteilung für Kieferorthopädie, Universitätsklinik für Zahn-, Mund- und Kieferheilkunde Innsbruck.
Fortschr Kieferorthop. 1994 Jun;55(3):104-10. doi: 10.1007/BF02341482.
The purpose of this study was to examine functional occlusion of impacted maxillary canines which had been moved orthodontically into the line of occlusion. Examinations were performed on both patients and on an articulator, which was adapted to correspond to the axiographical findings. Functional contacts on the working side during lateral movement of the mandible were found in all orthodontically aligned impacted canines. Half the aligned teeth were involved in canine guidance, half in group function. Balancing side interferences were detected in 22% of the cases. The result of this study revealed a nearly identical function in the aligned canines when compared with the spontaneously erupted canines on the other side of the same maxilla. This became apparent during lateral excursion of the mandible. The angle of mesiodistal inclination of the tooth central axis with an occlusal plane was 84 degrees for aligned and 82 degrees on average for the spontaneously erupted canines.
本研究的目的是检查经正畸移动至咬合线的上颌阻生尖牙的功能咬合情况。对患者和与轴面断层摄影结果相适配的牙合架均进行了检查。在所有经正畸排列的阻生尖牙中，均发现下颌侧方运动时工作侧存在功能接触。排列好的牙齿中，一半参与尖牙引导，一半参与组牙功能。22%的病例检测到平衡侧干扰。本研究结果显示，与同一上颌另一侧自然萌出的尖牙相比，排列好的尖牙功能几乎相同。这在下颌侧方运动时表现明显。排列好的尖牙牙中央轴与牙合平面的近远中倾斜角为84度，自然萌出的尖牙平均为82度。
