Faculty of Dentistry, Jordan University of Science and Technology (JUST), Irbid, Jordan.
J Prosthodont. 2010 Dec;19(8):601-5. doi: 10.1111/j.1532-849X.2010.00643.x. Epub 2010 Nov 11.
This study aimed at determining the most reliable ala-tragus line as a guide for the orientation of the occlusal plane in complete denture patients by use of cephalometric landmarks on dentate volunteers.
Analysis was made for prosthodontically related craniofacial reference lines and angles of lateral cephalometric radiographs taken for 47 dentate adults. Variables were determined and data were analyzed using SPSS (SPSS, Inc., Chicago, IL).
Occlusal plane angle formed between the occlusal plane and Camper's plane had the lowest mean value in the angle formed with Camper's I, which represents the measure taken from the superior border of the tragus of the ear with a score of 2.1°. The highest was measured in the angle formed with Camper's III with a score of 6.1°, while the angle formed with Camper's II was 3.2°. The differences between the three planes in relation to the occlusal plane was significant (p < 0.001).
The superior border of the tragus with the inferior border of the ala of the nose was most accurate in orienting the occlusal plane.
本研究旨在通过对牙列完整的志愿者的头颅侧位片上的牙科学相关的颅面标志进行分析,确定最可靠的耳屏-鼻翼线作为全口义齿患者咬合平面定向的指导。
对 47 名牙列完整的成年人的头颅侧位片进行了分析,这些头颅侧位片上有与修复相关的颅面参考线和角度。使用 SPSS(SPSS,Inc.,芝加哥,IL)确定变量并进行数据分析。
在与 Camper 平面形成的咬合平面角中,与 Camper I 形成的角度具有最低的平均值,这代表了从耳朵的耳屏的上缘测量的角度,得分为 2.1°。最高的是与 Camper III 形成的角度,得分为 6.1°,而与 Camper II 形成的角度为 3.2°。三个平面与咬合平面的差异具有统计学意义(p<0.001)。
在定向咬合平面时,耳屏的上缘与鼻翼的下缘最为准确。