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Orthodontic X-ray cephalometry relative line distance analysis method

A technology of analysis and line distance, applied in orthodontics, medical science, dentistry, etc., can solve the problems of inability to accurately understand the structure of the patient's teeth and jaws, and can not eliminate the impact, so as to achieve the effect of improving accuracy

Pending Publication Date: 2019-08-13
SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0011] However, the above-mentioned existing X-ray projection measurement analysis method cannot eliminate the influence of individual differences on the X-ray cephalometric length index, and cannot accurately understand the structure of the patient's jaw and craniofacial structure.

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  • Orthodontic X-ray cephalometry relative line distance analysis method
  • Orthodontic X-ray cephalometry relative line distance analysis method
  • Orthodontic X-ray cephalometry relative line distance analysis method

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Embodiment Construction

[0037] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, and are not intended to limit the protection scope of the present invention.

[0038] The present invention firstly provides a kind of height-based orthodontic X-ray cephalometric relative line distance analysis method, which comprises the following steps:

[0039] Step 1: Select landmarks and reference planes on the images obtained by X-ray cephalometric lateral photography, and only measure the line distance;

[0040] 1.1 Mark point selection

[0041] Such as figure 1 As shown, the following clinical landmarks were selected on the images obtained by X-ray cephalometric lateral photography:

[0042] Skull base point (Ba), ear point (P), sella center point (S), nasion point (N), orbital point (Or), pterygomaxillary cleft point (Ptm), anterior nasal spine point (ANS), Post...

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Abstract

The invention discloses an orthodontic X-ray cephalometry relative line distance analysis method. The analysis method comprises the following steps that 1, a mark point and a reference plane are selected on an image obtained by X-ray lateral cephalometric radiograph, and only line distance measuring is carried out; 2, the percentage of the obtained line distance and the height or the total skull bottom length is calculated to obtain a relative line distance. According to the method, the influence of individual difference on X-ray cephalometry length indexes can be eliminated to the maximum degree so that the relevant length indexes can more accurately reflect the clinical condition of a patient, and the orthodontic and orthognathic diagnosis and treatment process can be guided more accurately.

Description

technical field [0001] The invention relates to the technical field of orthodontic X-ray cephalometric measurement, in particular to a method for analyzing the relative line distance of orthodontic X-ray cephalometric measurement Background technique [0002] X-ray projection measurement analysis is an indispensable step in the current orthodontic diagnosis and treatment process. It is mainly used to help orthodontists and orthognathic surgeons to complete the analysis and prediction of the patient's dentition status, facial shape, bone shape and growth type. Auxiliary diagnosis and treatment design. According to different treatment concepts and research contents, there are various analysis methods of cephalometric measurement. Currently clinically commonly used are: [0003] Downs analysis method: Taking the orbito-auricular plane as the reference plane, 10 measurement indicators were measured, including the relationship between bones, the relationship between occlusal te...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/14A61C7/00A61B6/51
CPCA61C7/002A61B6/51
Inventor 陈昱刘加强孙仪庭王天鸽林怡君周志捷
Owner SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE