以机械耳点为参照点的解剖耳点构建的预测方程。
Predictive Equation for Construction of Anatomic Porion with Machine Porion as Reference Point.
机构信息
Department of Orthodontics, Srinivas Institute of Dental Sciences, Mangaluru, Karnataka, India.
Consultant Orthodontist, Hebbal, Bengaluru, Karnataka, India, Phone: +91 8660459208, e-mail:
出版信息
J Contemp Dent Pract. 2023 Apr 1;24(4):257-260. doi: 10.5005/jp-journals-10024-3501.
AIM
The aim of the study was to find a relationship between anatomic porion (PoA) and machine porion (PoM) and to construct PoA with the help of machine porion.
METHODOLOGY
About 200 pretreatment lateral roentgenic cephalograms were used for the study. Perpendicular distances of PoA and PoM were measured from Sella-Nasion (SN) plane and SN perpendicular plane. The results were tabulated. With the help of statistical analysis, predictive equation was derived to construct PoA and PoM. -value was set at < 0.05.
RESULTS
Anatomic porion distance from SN was 24.35 ± 3.96 and from SN perpendicular was 12.89 ± 4.56. Distance of PoM from SN was 22.46 ± 4.20 and from SN perpendicular was 16.76 ± 4.89. Sexual dimorphism was also seen.
CONCLUSION
There is a relationship between the PoM and PoA, thus, PoA, which is more reliable, can be constructed with the help of PoM, which is easy to reproduce.
CLINICAL SIGNIFICANCE
To overcome the inherent limitations of PoA and PoM, the present study aimed to find a relationship between the two so as to easily construct PoA that is more reliable while taking advantage of the ease of reproducibility of PoM.
目的
本研究旨在探讨解剖翼点（PoA）与机器翼点（PoM）之间的关系，并借助机器翼点构建解剖翼点。
方法
本研究共使用了约 200 份预处理的侧位头颅 X 光片。从蝶鞍中心点（Sella-Nasion，SN）平面和 SN 垂直平面测量 PoA 和 PoM 的垂直距离。将结果制表。通过统计分析，得出了构建 PoA 和 PoM 的预测方程。显著性水平设为 < 0.05。
结果
解剖翼点到 SN 的距离为 24.35 ± 3.96，到 SN 垂直平面的距离为 12.89 ± 4.56。PoM 到 SN 的距离为 22.46 ± 4.20，到 SN 垂直平面的距离为 16.76 ± 4.89。还观察到了性别二态性。
结论
PoM 和 PoA 之间存在一定的关系，因此，借助易于重现的 PoM，可以构建更为可靠的 PoA。
临床意义
为了克服 PoA 和 PoM 的固有局限性，本研究旨在寻找两者之间的关系，以便在利用 PoM 易于重现的优势的同时，构建更为可靠的 PoA。
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