Partial tray combined dental film positioning and measuring device

Abstract

The invention discloses a device for taking dental pictures, positioning and measuring, wherein the device includes a dental tray assembly (1) and a ball tube positioning assembly (2). The dental tray assembly (1) is placed inside the oral cavity to fix the teeth. The position of the negative film (16); the tube positioning component (2) is placed outside the oral cavity to locate the photographing position. The dental film photographing positioning and measuring device of the present invention has a simple structure, is easy to operate, is low in cost, has strong versatility, and can accurately locate the photographing position and can be used with a scale to accurately measure.

Description

technical field [0001] The invention relates to the field of dental medical appliances, in particular to a device for taking pictures, positioning and measuring of a local dental tray combined dental film. Background technique [0002] Taking dental root tip radiographs is a commonly used inspection method in the process of oral diagnosis and treatment. At present, most hospitals and clinics use manual operations when taking radiographs. It is necessary to first clamp the X-ray dental film into the oral cavity with hands, cameras or clumsy clippers. Under the guidance of the doctor, the patient fixes the dental film with his fingers, and then takes pictures with the radiation head located outside the mouth. [0003] Utilize above-mentioned method to shoot apical tooth radiograph, have the following disadvantages: [0004] (1) The apical radiographs taken are often projected diagonally, and the imaging of dental radiographs will be twisted and magnified to a certain extent, ...

AI Technical Summary

Problems solved by technology

[0004] (1) The apical radiographs taken are often projected diagonally, and the imaging of dental radiographs will be twisted and magnified to a certain extent, which cannot accurately reflect the condition of the tooth root;

[0005] (2) It is very subjective, and it is difficult for ordinary doctors to take high-quality dental films;

[0006] (3) Because the placement of the dental film is not fixed, the images of the dental film taken multiple times cannot overlap, and it is difficult to accurately measure the teeth in the dental film;

[0007] (4) The foreign body sensation in the patient's mouth is strong, and it is inconvenient and unhygienic for the patient to hold it

[0008] In addition, root canal therapy is currently one of the effective methods for treating pulp disease or periapical disease. Before and after root canal therapy, before and after root apex surgery, and long-term effect observation of dental treatment, it is often necessary to treat the same angle and the same position. It is difficult to obtain a stable position of the root apices by using the above-mentioned conventional dental film shooting method

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