Spatial trajectory precise positioning method applied to cutting of braceless invisible orthodontic appliance by mechanical arm

An invisible aligner and precise positioning technology, which is applied in the field of orthodontics, can solve the problem that it cannot completely overlap with the digital cutting track, and achieve the effects of controllable product quality, reduced production time, and improved stability

Active Publication Date: 2017-07-07
QINGDAO LANXIN MEDICAL TECH CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a precise positioning method for the spatial trajectory of the invisible aligner without brackets

Method used

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  • Spatial trajectory precise positioning method applied to cutting of braceless invisible orthodontic appliance by mechanical arm

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Embodiment Construction

[0017] The content of the present invention will be described in detail below in conjunction with specific embodiments.

[0018] The precise positioning method of the spatial trajectory of the manipulator cutting the invisible aligner without brackets according to the method of the present invention is used to solve the problem that the actual spatial position and the digital cutting trajectory cannot completely overlap.

[0019] First obtain the virtual gum line of the tooth digital model, upload its number and virtual gum line to the server; the specific process of obtaining the virtual gum line of the tooth digital model is:

[0020] (11) scanning the tooth model to obtain the tooth digital model;

[0021] (12) Segment the teeth and gums according to the edge of the teeth through the incisor software;

[0022] (13) Set a standard value s, if the distance between adjacent tooth edge lines is less than s, then remove part of the gum line within the range, and then connect tw...

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Abstract

The invention relates to the dental orthodontic technical field and relates to a spatial trajectory precise positioning method applied to the cutting of a braceless invisible orthodontic appliance by a mechanical arm. The method includes the following steps that: (1) the virtual gingival lines of a dental digital model are obtained, and the virtual gingival lines are numbered and are transmitted to a server; (2) a two-dimensional code block for recording a dental model serial number is arranged on the dental model, the spatial position of the two-dimensional code block and the spatial position relationship of the two-dimensional code block and tooth edge lines are recorded and are uploaded to the server; (3) the two-dimensional code block is scanned, so that the serial number of the dental model is obtained, the virtual gingival lines of the dental model corresponding to the serial number, the spatial position of the two-dimensional code block and the spatial position relationship of the two-dimensional code block and the tooth edge lines are downloaded; and (4) the two-dimensional code block of the dental model is adjusted to the spatial position of the downloaded two-dimensional code block, and the orthodontic appliance is cut off from a hot-press diaphragm according to the virtual gingival lines. With the method of the invention adopted, the problem that actual spatial positions cannot be completely overlapped with digital cutting trajectories can be solved, and the mechanical automated production of the braceless invisible orthodontic appliance can be greatly promoted.

Description

technical field [0001] The invention relates to the technical field of orthodontics, in particular to a precise positioning method of a space track for cutting invisible aligners without brackets by a manipulator. Background technique [0002] With the comprehensive deepening of reform and opening up, people's living standards are improving day by day, and people pay more and more attention to dental health and aesthetic problems. Bracket-free invisible orthodontic technology is rapidly emerging and developing. Product manufacturers need to provide solutions and suppress invisible aligners suitable for each stage. With the blowout growth in the number of patients using invisible aligners, the invisible The number of aligners is also increasing rapidly. The current domestic mainstream production method of aligners is still manually polished. This production method not only requires a lot of manpower and material resources, but also has low efficiency, and the quality of the ...

Claims

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Application Information

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IPC IPC(8): G06T7/12G06T17/00G06K17/00A61C7/00
Inventor 吴斌王凯刘继敏
Owner QINGDAO LANXIN MEDICAL TECH CO LTD
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