Gosai Khyati N, Patel Ina B, Poonia Pooja, Jadav Dhvani P, Patel Nirali D, Sanghani Prakruti H
Department of Prosthodontics, Maharaja Ganga Singh Dental College and Research Center, Sri Ganganagar, Rajasthan, India.
Department of Prosthodontics, AMC Dental College and Hospital, Ahmedabad, Gujarat, India.
J Pharm Bioallied Sci. 2024 Jul;16(Suppl 3):S2122-S2125. doi: 10.4103/jpbs.jpbs_82_24. Epub 2024 Apr 24.
Occlusal plane determination plays an evident role in successful rehabilitation of completely edentulous patients. The most commonly used method is by using Camper's plane. But the posterior reference point of Camper's plane is debatable according to available literature. The aim of this study was to determine the most reliable posterior reference point for Camper's plane. A cross-sectional study was conducted, in which 60 dentulous subjects with age ranging from 18 to 25 years were selected according to the inclusion criteria. The Fox plane was inserted and lateral photographs were taken. A screen protractor was used to measure the angle between the occlusal plane and three ala-tragus lines. All three ala-tragus lines had the inferior border of ala of the nose as the anterior point of reference and for posterior reference, they used superior, middle, or inferior point of the tragus. The ala-tragus line using the inferior point of the tragus had the least mean angle with the occlusal plane. One-way analysis of variance (ANOVA) test obtained a value of < 0.0001, and therefore, a statistically significant difference was present among all three lines. Also, Tukey's honestly significant difference test for intergroup comparison of difference in angle among three different lines with the occlusal plane showed a significant -value on comparing all three groups between each other. The ala-tragus line formed using the inferior point of the tragus was most parallel to the occlusal plane in dentate patients. Therefore, the inferior point of the tragus should be used for Camper's plane.
咬合平面的确定在全口无牙患者的成功修复中起着明显的作用。最常用的方法是使用坎珀平面。但根据现有文献，坎珀平面的后参考点存在争议。本研究的目的是确定坎珀平面最可靠的后参考点。进行了一项横断面研究，根据纳入标准选择了60名年龄在18至25岁之间的有牙受试者。插入福克斯平面并拍摄侧面照片。使用屏幕量角器测量咬合平面与三条鼻翼-耳屏线之间的角度。所有三条鼻翼-耳屏线均以鼻翼下缘作为前参考点，后参考点则分别使用耳屏的上、中或下点。使用耳屏下点的鼻翼-耳屏线与咬合平面的平均角度最小。单因素方差分析（ANOVA）检验得到的值<0.0001，因此，所有三条线之间存在统计学上的显著差异。此外，对三条不同线与咬合平面角度差异进行组间比较的Tukey真实显著差异检验显示，三组之间相互比较时均具有显著的p值。在有牙患者中，使用耳屏下点形成的鼻翼-耳屏线与咬合平面最平行。因此，坎珀平面应使用耳屏下点。
