Modeling method of oral cavity model used for individual three-dimensional orthodontic force test

A modeling method and oral model technology, applied in medical science, dentistry, etc., can solve problems such as poor reliability, inability to effectively guide orthodontic programs, and inability to accurately obtain orthodontic force and torque from oral models, and achieve good reliability

Active Publication Date: 2013-04-24
盛源(河北)医疗产业有限公司
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Problems solved by technology

[0006] In order to overcome the deficiencies of the existing three-dimensional orthodontic force detection oral model that cannot accurately obtain the corrective force and moment, has poor reliability, and cannot effectively guide the des...

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  • Modeling method of oral cavity model used for individual three-dimensional orthodontic force test
  • Modeling method of oral cavity model used for individual three-dimensional orthodontic force test
  • Modeling method of oral cavity model used for individual three-dimensional orthodontic force test

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] refer to Figure 1 to Figure 7 , a method for modeling an oral cavity model for personalized three-dimensional orthodontic force detection, comprising the following steps:

[0031] 1) CT data acquisition: take CT images of the patient's oral cavity.

[0032] 2) Reconstruction of 3D model of oral tissue: use 3D reconstruction software to reconstruct the patient's oral cavity model, the reconstruction model includes teeth and alveolar bone without root socket, such as figure 1 shown.

[0033] 3) For the molars with multiple roots, correct the curved roots, that is, consider the direction of drawing, straighten the curved roots, and make them smaller or the same as they go toward the root, such as figure 2 shown.

[0034] 4) Design the periodontal ligament: expand the thickness of the periodontal ligament outward from the root surface, such as 0.25 mm, to obta...

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Abstract

The invention discloses a modeling method of an oral cavity model used for an individual three-dimensional orthodontic force test. The modeling method comprises the following steps of: 1) performing CT data acquisition; 2) rebuilding a three-dimensional model of an oral cavity tissue; 3) correcting bended dedendums of molars with multiple dedendums; 4) designing a parodontium; 5) removing an amplified tooth model from an alveolar bone model without dedendum fossa; 6) designing a guide plate used for locating a correct position of a tooth in the tooth fossa; 7) designing a base of the oral cavity model; 8) processing the teeth, the alveolar bone and the guide plate by using a hard material through a rapid proto-typing technology; 9) mixing a silica gel material for sealing and an elastic material to serve as a simulated material of the parodontium; and 10) filling the simulated material of the parodontium into the dedendum fossa on the alveolar bone and then inserting the teeth to finally obtain an oral cavity orthodontic force measurement and simulation model. The modeling method of the oral cavity model used for the individual three-dimensional orthodontic force test can obtain precise correcting force and torque, has relatively good reliability, and can efficiently guide an individual orthodontic force test model of an individual orthodontics schematic design.

Description

technical field [0001] The invention relates to a modeling method of an oral cavity model for three-dimensional orthodontic force detection. Background technique [0002] Fixed oral orthodontics is aimed at tooth alignment deformity or malocclusion (occlusion is a word, the same below), using orthodontic devices composed of arch wires, brackets, etc., to apply mechanical orthodontic force and torque to the teeth, and adjust the facial bones, teeth, etc. The balance and coordination between the maxillofacial and maxillofacial muscles will improve the facial shape, align the dentition and improve masticatory efficiency after a period of orthodontic treatment. [0003] In orthodontics, regardless of the square wire appliance or the straight wire appliance, the continuous load is applied to the teeth through the deformation of the archwire to realize the movement of the teeth. Therefore, the three-dimensional orthodontic force and moment provided by the appliance to the teeth w...

Claims

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Application Information

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IPC IPC(8): A61C19/04
Inventor 刘云峰董星涛姜献峰彭伟
Owner 盛源(河北)医疗产业有限公司
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