Tooth received-force testing device and method

A technology for testing devices and teeth, applied in dentistry, medical science, etc., can solve problems such as shortages, and achieve the effects of reducing processing errors, improving appliance performance, and improving orthodontic solutions.

Active Publication Date: 2015-11-25
SHANGHAI EA MEDICAL INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there is currently no standardized method that can fully test the performance and expected therapeutic effect of dental appliances in vitro before the patient actually wears them
In particular, there is a lack of a device and corresponding method that can simultaneously and accurately measure the stress on multiple teeth in the upper jaw and / or lower jaw

Method used

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  • Tooth received-force testing device and method
  • Tooth received-force testing device and method
  • Tooth received-force testing device and method

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Experimental program
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Effect test

preparation example Construction

[0073] The preparation method of the dental crown simulation part 4 will be described in detail below.

[0074] A digital model of the patient's current teeth is first obtained. For example, the state of the dentition arrangement can be obtained by taking an impression, thereby generating a physical dental model, and then performing a three-dimensional scan on the physical dental model to obtain a digital model. It is also possible to directly obtain images of teeth, or teeth and their surrounding tissues by means of optical scanning, X-ray imaging, ultrasonic imaging, three-dimensional photography, three-dimensional imaging, or medical CT scanning, and generate digital models of teeth in a computer. That is, the digital model of each tooth, that is, the digital model of the crown 14 is obtained by digitizing the patient's teeth. Among them, the obtained plaster model can be cut with a knife, saw, or other cutting tools to obtain a physical model of each tooth, and a three-di...

specific Embodiment approach

[0102] Moreover, according to another specific embodiment of the present invention, the force measuring device can also be used to measure the influence of the thickness of the attachment and the appliance on the orthodontic force of the teeth.

[0103] For example, in practical applications, a digital model representing the three-dimensional shape of the invisible aligner can be set so that the thickness of the aligner for each tooth is different; The corresponding thickness of the part of the appliance reduces the rigidity of the part of the appliance and increases the elasticity, so that the teeth are easy to move during the orthodontic process. For the teeth that do not want to move during the orthodontic process, the thickness of the corresponding part of the appliance can be increased, so that the stiffness of the appliance in this part is increased, while the elasticity is reduced, so that the tooth is not easy to move during the orthodontic process. . Correspondingly,...

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Abstract

The invention provides a tooth received-force testing device which comprises at least one tooth crown simulating part and a sensor connected with the tooth crown simulating parts. The tooth crown simulating parts are combined to form a dentition model, and the sensor is used for measuring force received by teeth in the dentition model. During correcting force testing, a to-be-tested tooth corrector is worn on the dentition model, and correcting force applied on the teeth on the dentition model by the tooth corrector is transmitted to the sensor, so that six-dimensional parameters of the correcting force can be measured. The invention further provides a method utilizing the tooth received-force testing device to test the force received by the teeth.

Description

technical field [0001] The present application relates to a tooth force testing device and method, which can perform multi-dimensional parameter measurement on tooth force, so as to evaluate tooth force. Background technique [0002] In order to carry out medical correction and treatment to the patient's teeth, a variety of orthodontic appliances have been developed. Traditional deformity correction methods mostly use fixed bracket appliances bonded to the teeth. Bracket appliances generally include a bracket bracket fixed to a single tooth and an elastic archwire for binding the bracket bracket. [0003] Compared with the traditional fixed bracket orthodontic technology, the new invisible orthodontic technology does not require brackets and steel wires, but uses a series of invisible aligners (also known as shell aligners). This invisible orthodontic appliance is made of safe elastic polymer materials, so that the orthodontic process can be completed almost unnoticed by ot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C19/04
Inventor 窦宁
Owner SHANGHAI EA MEDICAL INSTR CO LTD
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