CN113425233A - Oral cavity scanning device and system - Google Patents
Oral cavity scanning device and system Download PDFInfo
- Publication number
- CN113425233A CN113425233A CN202110758679.0A CN202110758679A CN113425233A CN 113425233 A CN113425233 A CN 113425233A CN 202110758679 A CN202110758679 A CN 202110758679A CN 113425233 A CN113425233 A CN 113425233A
- Authority
- CN
- China
- Prior art keywords
- patient
- dentition
- cameras
- image
- target
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0082—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
- A61B5/0088—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for oral or dental tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
- A61C9/004—Means or methods for taking digitized impressions
- A61C9/0046—Data acquisition means or methods
- A61C9/0053—Optical means or methods, e.g. scanning the teeth by a laser or light beam
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Dentistry (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Biophysics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Epidemiology (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The embodiment of the invention provides oral cavity scanning equipment and a system, and relates to the technical field of oral cavity scanning. The oral scanning device comprises: a plurality of cameras and holders; the cameras are respectively arranged on the fixator; the fixer is used for being fixedly placed in the oral cavity of a patient; when the fixator is fixedly placed in the oral cavity of a patient, each camera is used for shooting images of at least part of teeth on a target dentition of the patient, and the shooting ranges of the cameras cover all teeth of the target dentition of the patient; when the oral cavity of a patient is scanned, images shot by a plurality of cameras at the same time are synthesized to obtain an image of the target dentition of the patient. According to the invention, the images obtained by once shooting at the fixed position by the plurality of cameras in the oral cavity scanning equipment can be synthesized into the image of the target dentition of the patient, so that image distortion and deformation caused by multiple times of moving shooting or segmented shooting are avoided, the shot dental image is more accurate, and the diagnosis and treatment accuracy is improved.
Description
Technical Field
The invention relates to the technical field of oral cavity scanning, in particular to oral cavity scanning equipment and an oral cavity scanning system.
Background
Orthodontics treatment is mainly performed by various orthodontics to adjust the coordination among nerves and muscles of facial bones, teeth and maxillofacial parts, that is, to adjust abnormal relationships among maxilla and mandible, between upper and lower teeth, between teeth and jawbone, and between nerves and muscles connecting them, and the final correction is aimed at achieving the balance, stability and beauty of the oromandibular system.
At present, in the whole-mouth occlusion examination of clinical correction, restoration, temporomandibular joint treatment and the like, a dentist manually adjusts a single shooting device to carry out segmented scanning on teeth of a patient and then stores the teeth, and then obtains a panoramic image of the teeth of the oral cavity of the patient.
However, when a dentist moves and scans with a single shooting device, the dentist manually adjusts the shooting equipment, and cannot fix the angle and distance between the shooting equipment and the tooth of the shot section when shooting each section of image, so that the position and distance of the shot image are inconsistent when shooting each section of image, the overlapped part of the two adjacent sections of images is distorted when calculating the image splicing, and the error rate and the accuracy of the finally obtained panoramic image are large.
Disclosure of Invention
The invention aims to provide oral cavity scanning equipment and a system, wherein images obtained by once shooting at fixed positions by a plurality of cameras in the oral cavity scanning equipment can be synthesized into images of target dentitions of a patient, so that image distortion and deformation caused by multiple times of moving shooting or segmented shooting are avoided, the shot dental images are more accurate, and the diagnosis and treatment accuracy is improved.
To achieve the above object, the present invention provides an oral cavity scanning apparatus comprising: a plurality of cameras and holders; the cameras are respectively arranged on the fixator; the fixator is used for being fixedly placed inside the oral cavity of a patient; when the fixator is fixedly placed in the oral cavity of a patient, each camera is used for shooting images of at least part of teeth on the target dentition of the patient, and the shooting ranges of the cameras cover all teeth of the target dentition of the patient; when the oral cavity of the patient is scanned, the images shot by the plurality of cameras at the same time are synthesized to obtain the image of the target dentition of the patient.
The invention also provides an oral cavity scanning system, which comprises the oral cavity scanning device and a data processing device connected with the oral cavity scanning device; the data processing equipment is used for obtaining an image of a target dentition of a patient according to the obtained oral cavity scanning equipment, and obtaining a three-dimensional model of the target dentition.
In the embodiment of the invention, the oral cavity scanning equipment comprises a plurality of cameras and a fixer; the plurality of cameras are respectively arranged on the fixator, when the fixator is fixedly placed in the oral cavity of a patient to scan the oral cavity of the patient, the cameras respectively shoot images of at least part of teeth on the target dentition of the patient, and the shooting ranges of the cameras cover all teeth of the target dentition of the patient, so that the images shot by the cameras simultaneously can be synthesized to obtain an image of the target dentition of the patient; the images obtained by once shooting at the fixed position by the plurality of cameras in the oral cavity scanning equipment can be synthesized into the images of the target dentition of the patient, so that image distortion and deformation caused by multiple times of moving shooting or segmented shooting are avoided, the shot dental images are more accurate, and the diagnosis and treatment accuracy is improved.
In one embodiment, the holder comprises: the tooth socket is provided with tooth sockets, and the shape of the tooth sockets is matched with the dental arch of a patient; the plurality of cameras comprise a first camera group, a second camera group and a third camera group; the first camera group is fixed on the facing towards the labial side of the teeth of the patient, the second camera group is fixed on the facing towards the maxillofacial part of the teeth of the patient, and the third camera group is fixed on the facing towards the lingual side of the teeth of the patient; the shooting range of the first camera group covers the labial side surfaces of the teeth of the patient, the shooting range of the second camera group covers the dento-maxillofacial surfaces of the teeth of the patient, and the shooting range of the third camera group covers the lingual side surfaces of the teeth of the patient; when carrying out oral cavity scanning to the patient, the facing cover is established on patient's target dentition, the image synthesis that a plurality of cameras in the first camera group were shot simultaneously obtains the labial surface image of target dentition, the image synthesis that a plurality of cameras in the second camera group were shot simultaneously obtains the dentognathic surface image of target dentition, the image synthesis that a plurality of cameras in the third camera group were shot simultaneously obtains the lingual surface image of target dentition, the image of target dentition includes: labial, dento-maxillofacial, and lingual images of the target dentition.
In one embodiment, the holder comprises: a first arcuate fixation section; the shape of the inner arch of the first arch-shaped fixing part is matched with the shape of the labial side surface of the target dentition; the plurality of cameras are fixed on the first arched fixing part, the first arched fixing part is used for being fixedly placed between the target dentition and the lips of the patient, and the shooting ranges of the plurality of cameras cover the complete labial side of the target dentition of the patient; when the oral cavity of a patient is scanned, images shot by the plurality of cameras at the same time are synthesized to obtain a labial surface image of the target dentition; the labial image comprises any one or any combination of the following: a labial image of the upper dentition, a labial image of the lower dentition, and a labial image of the occlusal state of the upper and lower teeth.
In one embodiment, the holder comprises: a second arcuate fixation portion; the shape of the outer arch of the second arch-shaped fixing part is matched with the shape of the lingual side of the target dentition; the plurality of cameras are fixed on the second arched fixing part, the second arched fixing part is used for being fixedly placed between the target dentition and the tongue of the patient, and the shooting ranges of the plurality of cameras cover the complete lingual side of the target dentition; when the oral cavity of a patient is scanned, images shot by the plurality of cameras at the same time are synthesized to obtain a lingual side image of the target dentition; the lingual image comprises any one or any combination of the following: lingual images of upper dentition, lingual images of lower dentition, and lingual images of upper and lower occlusal status.
In one embodiment, the holder comprises: the shape of the U-shaped fixing part is matched with the shape of the dentognathic face of the target dentition; the U-shaped fixing part is used for being fixed between the upper dentition and the lower dentition of a patient, the plurality of cameras are fixed on the U-shaped fixing part, and the shooting ranges of the plurality of cameras cover the complete dentognathic face of the target dentition of the patient; when the patient is scanned in the oral cavity, images shot by the plurality of cameras at the same time are synthesized to obtain a dentognathic face image of the target dentition; the dento-maxillofacial image includes: an upper dentofacial image and/or a lower dentofacial image.
In one embodiment, the oral scanning device is further connected to a data processing device; the oral cavity scanning device is used for sending the dentognathic face images of the target dentition in a plurality of treatment periods to the data processing device, so that the data processing device can compare the dentognathic face images of the target dentition in at least two treatment periods, and the running track data of each tooth in the target dentition in the at least two treatment periods can be obtained.
In one embodiment, the trajectory data includes: the back and forth movement distance of the teeth, the left and right movement distance of the teeth, and the height variation data of the teeth.
In one embodiment, the oral scanning device further comprises: a wireless communication module disposed on the holder; the oral cavity scanning device is connected to a data processing device through the wireless communication module; when the patient is scanned in the oral cavity, the oral cavity scanning device sends the image of the target dentition to the data processing device through the wireless communication module.
In one embodiment, the oral scanning device further comprises: the power supply unit is arranged on the fixer, is electrically connected with the cameras respectively, and is used for supplying power to the cameras.
Drawings
FIG. 1 is a schematic view of an oral scanning device according to a first embodiment of the invention, wherein the holder is a mouthpiece;
FIG. 2 is a schematic view of an oral scanning device according to a first embodiment of the present invention, wherein the mouthpiece has positioning marks;
FIG. 3 is a schematic view of an oral scanning device according to a second embodiment of the invention, wherein the retainer is a first arcuate retainer portion;
FIG. 4 is a schematic view of an oral scanning device in accordance with a second embodiment of the invention, wherein the retainer is a second arcuate retainer portion;
FIG. 5 is a schematic view of an oral scanning device according to a second embodiment of the present invention, wherein the holder is a U-shaped holder;
FIG. 6 is a schematic representation of a dento-maxillofacial image comparison of a target dentition during two treatment cycles in accordance with a third embodiment of the invention;
FIG. 7 is a schematic view of an oral scanning device according to a fourth embodiment of the invention;
fig. 8 is a schematic diagram of an oral scanning system according to a fifth embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings in order to more clearly understand the objects, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.
In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.
Throughout the specification and claims, the word "comprise" and variations thereof, such as "comprises" and "comprising," are to be understood as an open, inclusive meaning, i.e., as being interpreted to mean "including, but not limited to," unless the context requires otherwise.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "or/and" unless the context clearly dictates otherwise.
In the following description, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms will be used, but terms such as "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be construed as words of convenience and should not be construed as limiting terms.
A first embodiment of the invention relates to an oral scanning device for taking panoramic images of teeth of a patient's oral cavity. The oral scanning device comprises: a plurality of cameras and holders; the cameras are respectively arranged on the fixator; the fixer is used for being fixedly placed in the oral cavity of a patient; when the fixer is fixedly placed in the oral cavity of a patient, each camera is used for shooting images of at least part of teeth on a target dentition (including the upper dentition and/or the lower dentition of the patient) of the patient, and the shooting ranges of the cameras cover all teeth of the target dentition of the patient; when the oral cavity of a patient is scanned, images shot by a plurality of cameras at the same time are synthesized to obtain an image of the target dentition of the patient. In this embodiment, the distribution mode of the plurality of cameras on the fixture is not limited, and only the shooting ranges of the plurality of cameras are required to cover all teeth of the target dentition of the patient.
The oral cavity scanning device provided by the embodiment comprises a plurality of cameras and a fixer; the plurality of cameras are respectively arranged on the fixator, when the fixator is fixedly placed in the oral cavity of a patient to scan the oral cavity of the patient, the cameras respectively shoot images of at least part of teeth on the target dentition of the patient, and the shooting ranges of the plurality of cameras cover all teeth of the target dentition of the patient, so that the images shot by the plurality of cameras simultaneously can be synthesized to obtain an image of the target dentition of the patient; the images obtained by once shooting at the fixed position by the plurality of cameras in the oral cavity scanning equipment can be synthesized into the images of the target dentition of the patient, so that image distortion and deformation caused by multiple times of moving shooting or segmented shooting are avoided, the shot dental images are more accurate, and the diagnosis and treatment accuracy is improved.
In the following, the present embodiment is further described by taking the fixture as a mouthpiece as an example, please refer to fig. 1, the fixture includes a mouthpiece 1, the plurality of cameras are divided into three groups, which are respectively a first camera group, a second camera group and a third camera group, the first camera group includes a plurality of first cameras 21, the second camera group includes a plurality of second cameras 22, and the third camera group includes a plurality of third cameras 23. It should be noted that fig. 1 only schematically shows the number of the first camera 21, the second camera 22, and the third camera 23.
The tooth socket 1 is provided with a tooth socket 11, and the shape of the tooth socket is matched with the dental arch of the upper dentition or the lower dentition of a patient; in one example, mouthpiece 1 may be made of a flexible material such that the shape of mouthpiece 1 is adjustable to accommodate both the upper and lower dentitions of a patient, or to accommodate different dentitions of multiple patients.
The dental mouthpiece 1 can be divided into three parts, and a first camera group, a second camera group and a third camera group are respectively fixed on the three parts; specifically, when the mouthpiece 1 is fitted over a target dentition (which may be an upper dentition or a lower dentition) of a patient, the mouthpiece 1 includes: a portion facing labial sides of the patient's teeth (hereinafter referred to as a first portion), a portion facing maxillofacial surfaces of the patient's teeth (a second portion), and a portion facing lingual sides of the patient's teeth (a third portion).
A plurality of first cameras 21 included in the first camera group are respectively arranged on the first part, each first camera 21 is used for shooting the labial side of the target dentition, and the shooting ranges of the plurality of first cameras 21 cover the whole labial side of the target dentition; a plurality of second cameras 22 included in the second camera group are respectively arranged on the second part, each second camera 22 is used for shooting the dentognathic face of the target dentition, and the shooting range of the plurality of second cameras 22 covers the whole dentognathic face of the target dentition; the plurality of third cameras 23 included in the third camera group are respectively disposed on the third portion, each third camera 23 is configured to photograph the lingual side of the target dentition, and the photographing range of the plurality of third cameras 23 covers the entire lingual side of the target dentition. Wherein, the shooting ranges between two adjacent cameras can be crossed.
In this embodiment, when the oral cavity is scanned for the target dentition of the patient, the dental mouthpiece 1 is sleeved on the target dentition, the plurality of first cameras 21 in the first camera group simultaneously take the labial side of the target dentition, and the pictures taken by the plurality of first cameras 21 can be spliced and synthesized to obtain the labial side image of the target dentition; the plurality of second cameras 22 in the second camera group shoot the dentognathic face of the target dentition at the same time, and pictures shot by the plurality of second cameras 22 can be spliced and synthesized to obtain dentognathic face images of the target dentition; the third cameras 23 in the third camera group shoot the lingual side of the target dentition at the same time, pictures shot by the third cameras 23 can be spliced and synthesized to obtain lingual side images of the target dentition, and the images of the target dentition obtained by oral cavity scanning include: labial, dento-maxillofacial, and lingual images of the target dentition.
When the tooth socket 1 is sleeved on the target tooth row, a positioning position which does not influence tooth treatment can be arranged on the target tooth row, and the tooth socket 1 is provided with a positioning device which can be fixed on the positioning position, so that the stability of the tooth socket 1 fixed on the target tooth row is ensured to a certain extent and is not influenced by the tooth treatment before and after, the position consistency of images of the target tooth row before and after treatment is enhanced, images of the target tooth row shot in different treatment periods have stronger contrast, and better reference contrast is provided when a doctor makes a treatment plan; the localized position, such as an alveolar ridge on the distal end of the target dentition, also does not affect the patient's occlusion.
In one example, referring to fig. 2, a positioning mark 101 is further disposed on the dental sheath; the target location on location sign and patient's dentition corresponds, for example, the location sign instructs patient incisor slit, as shown in fig. 2, 1 cover of facing is established on patient's dentition, location sign 101 is incisor slit only in the lower dentition to the patient, follow-up when 1 cover of facing is established on target dentition, incisor slit is the instruction department of location sign 101 in can still following dentition, thereby keep the position's of facing in last dentition unanimity to a certain extent, make the image of the target dentition that oral cavity scanning device shoot and obtain more accurate.
In this embodiment, a microcontroller with an image processing function may be added to the oral cavity scanning device, the microcontroller is configured to control the plurality of cameras to shoot simultaneously and synthesize images shot by the plurality of cameras to obtain labial, maxillofacial and lingual images of the target dentition, or the oral cavity scanning device may be connected to a data processing device through a wire or wirelessly, the data processing device controls the plurality of cameras to shoot simultaneously, the plurality of first cameras 21, the plurality of second cameras 22 and the plurality of third cameras 23 in the oral cavity scanning device may send shot images to the data processing device connected to the oral cavity scanning device, and the data processing device synthesizes labial, maxillofacial and lingual images of the target dentition; the data processing device can be a desktop computer, a notebook computer, a mobile phone or a cloud server.
In this embodiment, the oral cavity scanning device is a portable device, so that besides the oral cavity scanning performed by the doctor in the above manner, a separate patient end may be set, that is, the patient may complete the above oral cavity scanning at home by using the other oral cavity scanning device, and the oral cavity scanning device may be connected to the electronic device such as a mobile phone and a computer of the patient wirelessly (e.g., bluetooth, WIFI, 4G network, 5G network, NFC, etc.) or by wire, so that the patient may install the application program corresponding to the oral cavity scanning device in the electronic device and view the image of the target dentition scanned by the oral cavity of the patient by using the acquired application program; subsequently, the patient can upload the image of the target dentition of the patient to a preset cloud server through the electronic equipment, so that a doctor can acquire the image of the target dentition of the patient from the cloud server for remote diagnosis, the oral treatment condition of the patient can be known in real time, and guidance is provided for a next treatment plan.
A second embodiment of the invention relates to an oral scanning device, the second embodiment being relative to the first embodiment: in this embodiment, other various specific implementations of the fixator are provided.
In this embodiment, various specific implementation manners of the fixator are provided, and detailed description is provided below:
first, referring to fig. 3, the holder includes: a first arcuate fixing portion 11, the shape of the inner arch of the first arcuate fixing portion 11 matching the shape of the labial side of the target dentition of the patient; a plurality of cameras 31 (only the number of cameras 31 is schematically illustrated in the figure) are fixed on the first arcuate fixing portion 11; the first arch-shaped fixing part 11 is used for being fixedly placed between a target dentition of a patient and lips of the patient, each camera 31 is used for shooting partial labial sides of the target dentition, and the shooting range of the plurality of cameras 31 covers the complete labial sides of the target dentition.
When the patient is scanned in the oral cavity, the first arch-shaped fixing part 11 is fixed between the target dentition of the patient and the lips of the patient, the plurality of cameras 31 shoot simultaneously, and images obtained after the plurality of cameras 31 shoot simultaneously can be synthesized to obtain a labial side image of the target dentition. The labial image includes any one or any combination of the following: a labial image of the upper dentition, a labial image of the lower dentition, and a labial image of the occlusal state of the upper and lower teeth.
The first arch fixing part 11 can be fixed between the target dentition of the patient and the lips of the patient in a specific way: a positioning position which does not influence the tooth treatment is arranged on the target dentition, and a positioning device which can be fixed on the positioning position is arranged on the first arched fixing part 11, so that the stability of the first arched fixing part 11 fixed on the target dentition is ensured to a certain extent, the first arched fixing part is not influenced by the tooth treatment before and after, the position consistency of the images of the target dentition before and after the treatment is enhanced, the images of the target dentition shot in different treatment periods have stronger contrast, and better reference contrast is provided when a doctor makes a treatment plan; the localized position, such as an alveolar ridge on the distal end of the target dentition, also does not affect the patient's occlusion.
The target dentition in this embodiment may be a single upper dentition or a single lower dentition, or may include both the upper dentition and the lower dentition. Specifically, when the target dentition is the upper dentition of the patient, the first arc-shaped fixing part 11 is fixed between the upper dentition and the upper lip of the patient, the plurality of cameras 31 on the first arc-shaped fixing part 11 perform shooting at the same time, and images obtained after the plurality of cameras 31 perform shooting at the same time can be synthesized to obtain an image of the labial side of the upper dentition; when the target dentition is the lower dentition of the patient, the first arc-shaped fixing part 11 is fixed between the lower dentition and the lower lip of the patient, the plurality of cameras 31 on the first arc-shaped fixing part 11 shoot at the same time, and images obtained after shooting by the plurality of cameras 31 can be synthesized to obtain a lip side image of the lower dentition; when the target dentition includes: when going up the dentition and the lower dentition, first bow-shaped fixed part 11 is fixed between patient's upper and lower dentition and lip, and first bow-shaped fixed part 11 covers upper dentition and lower dentition simultaneously at least, and first bow-shaped fixed part 11 can be fixed on upper and lower row or lower dentition, and similar to the aforesaid, a plurality of cameras 31 on first bow-shaped fixed part 11 can shoot the lip side image of upper dentition and the lip side image of lower dentition simultaneously, can also be when patient's upper and lower tooth is in the occlusal state simultaneously, and a plurality of cameras 31 shoot simultaneously, and the picture that obtains after a plurality of cameras 31 shoot can synthesize the lip side image of upper and lower tooth occlusal state.
When the target dentition may be an individual upper dentition or lower dentition, the images captured by the plurality of cameras 31 may be combined to obtain labial images of the occlusal state of the upper and lower teeth.
Second, referring to fig. 4, the holder includes: a second arcuate fixing portion 12; the shape of the outer arch of the second arch-shaped fixing portion 12 matches the shape of the lingual side of the target dentition; a plurality of cameras 32 (only the number of cameras 32 is schematically illustrated in the figure) are fixed on the second arched fixing portion 12, the second arched fixing portion 12 is used for being fixedly placed between the target dentition and the tongue of the patient, each camera 32 is used for shooting partial lingual side of the target dentition, and the shooting range of the plurality of cameras 32 covers the complete lingual side of the target dentition of the patient.
When the patient is scanned in the oral cavity, the second arch-shaped fixing part 12 is fixed between the target dentition of the patient and the tongue of the patient, the plurality of cameras 32 shoot simultaneously, and images obtained after the plurality of cameras 32 shoot simultaneously can be synthesized to obtain a lingual side image of the target dentition. The lingual image includes any one or any combination of the following: lingual images of upper dentition, lingual images of lower dentition, and lingual images of upper and lower occlusal status.
The specific way of fixing the second arch fixing part 12 between the target dentition of the patient and the tongue of the patient may be: a positioning position which does not influence the tooth treatment is arranged on the target dentition, and a positioning device which can be fixed on the positioning position is arranged on the second arched fixing part 12, so that the stability of the second arched fixing part 12 fixed on the target dentition is ensured to a certain extent, the second arched fixing part is not influenced by the tooth treatment before and after, the position consistency of the images of the target dentition before and after the treatment is enhanced, the images of the target dentition shot in different treatment periods have stronger contrast, and better reference contrast is provided when a doctor makes a treatment plan; the localized position, such as an alveolar ridge on the distal end of the target dentition, also does not affect the patient's occlusion.
The target dentition in this embodiment may be a single upper dentition or a single lower dentition, or may include both the upper dentition and the lower dentition. Specifically, when the target dentition is the upper dentition of the patient, the second arch-shaped fixing part 12 is fixed between the upper dentition and the upper lip of the patient, the plurality of cameras 32 on the second arch-shaped fixing part 12 perform shooting at the same time, and images obtained after the plurality of cameras 32 perform shooting at the same time can be synthesized to obtain a lingual image of the upper dentition; when the target dentition is the lower dentition of the patient, the second arc-shaped fixing part 12 is fixed between the lower dentition and the lower lip of the patient, the plurality of cameras 32 on the second arc-shaped fixing part 12 shoot simultaneously, and images obtained after shooting by the plurality of cameras 32 can be synthesized to obtain a lingual side image of the lower dentition; when the target dentition includes: when the upper dentition and the lower dentition of the patient are carried out, the second arched fixing portion 12 is fixed between the upper dentition and the lower dentition of the patient and the lips, the second arched fixing portion 12 at least covers the upper dentition and the lower dentition at the same time, the second arched fixing portion 12 can be fixed on the upper dentition and the lower dentition or the lower dentition, similarly to the above, the plurality of cameras 32 on the second arched fixing portion 12 can simultaneously shoot the tongue side images of the upper dentition and the tongue side images of the lower dentition, meanwhile, when the upper dentition and the lower dentition of the patient are in the occlusion state, the plurality of cameras 32 can simultaneously shoot, and the images obtained after the shooting by the plurality of cameras 32 can be synthesized to obtain the tongue side images of the occlusion state of the.
When the target dentition may be an individual upper dentition or an individual lower dentition, the images captured by the plurality of cameras 32 may be adjusted by adjusting the capturing angles of the plurality of cameras 32, so that the lingual images of the upper and lower occlusal states may be synthesized from the images captured by the plurality of cameras 32.
Third, referring to fig. 5, the holder includes: the U-shaped fixing part 13, the shape of the U-shaped fixing part 13 matches with the shape of the dentognathic face of the target dentition; the U-shaped fixing part 13 is used for fixing between the upper dentition and the lower dentition of the patient, a plurality of cameras 33 (only the number of the cameras 33 is schematically described in the figure) are fixed on the U-shaped fixing part 13, each camera 33 is used for shooting partial dentofacial surfaces of the target dentition, and the shooting ranges of the plurality of cameras 33 cover the complete dentofacial surfaces of the target dentition of the patient.
When the patient is scanned in the oral cavity, the U-shaped fixing part 13 is fixed between the upper dentition and the lower dentition of the patient, and images shot by the plurality of cameras 33 on the U-shaped fixing part 13 at the same time are synthesized to obtain a dentognathic face image of the target dentition; the dento-maxillofacial image includes: an upper dentofacial image and/or a lower dentofacial image.
The specific way of fixing the U-shaped fixing portion 13 between the upper dentition and the lower dentition of the patient may be: the U-shaped fixing part 13 is provided with a positioning mark, when a patient bites the U-shaped fixing part 13, the position of the positioning mark is ensured to be unchanged, so that the U-shaped fixing part 13 is fixed at a fixed position between an upper dentition and a lower dentition, or a positioning position which does not influence tooth treatment is arranged on a target dentition, and the U-shaped fixing part 13 is provided with a positioning device which can be fixed at the positioning position, so that the stability of the U-shaped fixing part 13 fixed on the target dentition is ensured to a certain extent, the U-shaped fixing part is not influenced by the teeth before and after treatment, the position consistency of images of the target dentition before and after treatment is enhanced, images of the target dentition shot in different treatment periods have stronger contrast, and better reference contrast is provided when a doctor makes a treatment plan; the localized position, such as an alveolar ridge on the distal end of the target dentition, also does not affect the patient's occlusion.
The target dentition in this embodiment may be the individual upper or lower dentition. Specifically, when the target dentition is the upper dentition of the patient, the U-shaped fixing part 13 is fixed between the upper dentition and the lower dentition of the patient, the plurality of cameras 33 on the U-shaped fixing part 13 perform simultaneous shooting, and images obtained by simultaneous shooting by the plurality of cameras 33 can be synthesized to obtain a dentognathic face image of the upper dentition; when the target dentition is the lower dentition of the patient, the U-shaped fixing part 13 is fixed between the upper dentition and the lower dentition of the patient, the plurality of cameras 33 on the U-shaped fixing part 13 shoot simultaneously, and images obtained after shooting by the plurality of cameras 33 can be synthesized to obtain a dentognathic face image of the lower dentition.
It should be noted that the fixture may also include the first arc-shaped fixing portion 11, the second arc-shaped fixing portion 12 and the U-shaped fixing portion 13, and the first arc-shaped fixing portion 11, the second arc-shaped fixing portion 12 and the U-shaped fixing portion 13 can be detachably assembled together, so as to obtain a fixture similar to the mouthpiece 1 in the first embodiment.
In this embodiment, oral cavity scanning equipment can obtain lip side image and tongue side image under the occlusion state of upper and lower teeth of patient through a plurality of camera simultaneous shooting, and the position of a plurality of cameras is fixed during the shooting, and the image that a plurality of cameras were shot is acquireed simultaneously under the fixed position, thereby can obtain the uniformity when follow-up concatenation is synthetic and three-dimensional fuses well, the picture under the occlusion state of upper and lower teeth that degree of reality and accuracy are higher, can make treatment scheme and look over treatment effect for the doctor and play guiding effect.
The third embodiment of the invention relates to an oral cavity scanning device, and compared with the first embodiment, the third embodiment is mainly improved in that: in this embodiment, the movement trajectory data of each tooth in the target dentition can be acquired.
When a doctor carries out oral treatment on a patient, a treatment plan comprising a plurality of treatment cycles is established according to the condition of target dentition of the patient, the time of each treatment cycle can be the same, and the treatment cycle can also be increased in a step-type manner based on the treatment condition of the patient.
In each treatment period, a dental scan device can be used for acquiring a dental maxillofacial image of a target dentition of a patient, the dental scan device is used for sending the dental maxillofacial image of the target dentition in a plurality of treatment periods to a data processing device so that the data processing device can compare the dental maxillofacial image of the target dentition in at least two treatment periods to obtain the running track data of each tooth in the target dentition in at least two treatment periods, the running track data can quantitatively represent the treatment condition of the patient, the method has guiding significance for the next treatment of a doctor, and the method plays a role in auxiliary diagnosis in clinical treatment. Wherein, the operation track data comprises: the back and forth movement distance of the teeth, the left and right movement distance of the teeth, and the height variation data of the teeth. Wherein, the data processing equipment can be cloud ware, and oral cavity scanning device can send the dentognathic face image of target dentition of collection to data processing equipment long-rangely.
Referring to fig. 6, the data processing device may select the maxillofacial images of the target dentition in two treatment cycles, and compare the maxillofacial images of the target dentition in the two treatment cycles, and the specific comparison manner may be to select at least one positioning point (in fig. 6, the positioning point includes positioning point a and positioning point B) that is not affected by the treatment plan, and compare the two maxillofacial images with the positioning point as a reference, so as to obtain comparison relationship data, as shown in fig. 6, tooth 1 and tooth 2 are orthodontic treatment teeth, the dotted line is the positions of tooth 1 and tooth 2 before treatment, the solid line is the positions of tooth 1 and tooth 2 after treatment, and the comparison relationship data includes the variation data on the indicated positions or positions of tooth 1 and tooth 2, for example: upper, lower, left, right, anterior, posterior, longitudinal, transverse, vertical, horizontal, medial, distal, buccal, lingual, occlusal, open, closed, top, bottom, inner, outer, clockwise, counterclockwise, height, thickness, length, width, axial, radial; therefore, the contrast relation data can represent the stage movement data of the target dentition between the two treatment cycles, and the stage movement data is the running track data of each tooth in the target dentition.
A fourth embodiment of the present invention is directed to an oral scanning device, the fourth embodiment being relative to the first embodiment: referring to fig. 7, the oral cavity scanning apparatus further includes: a wireless communication module 4 and a power supply unit 5 provided on the holder; the wireless communication modules 4 are respectively connected to cameras (not shown in the figure), the power supply unit 5 is respectively electrically connected with the cameras (not shown in the figure), and the power supply unit 4 is used for supplying power to the cameras.
In this embodiment, when scanning the oral cavity of a patient, the oral cavity scanning device transmits an image of a target dentition to the data processing device through the wireless communication module 4.
In the embodiment, the power supply unit is integrated in the oral cavity scanning equipment, so that the portability of the oral cavity scanning equipment is further improved; meanwhile, the wireless communication module is integrated in the oral cavity scanning equipment, so that the communication convenience of the oral cavity scanning equipment is improved.
Referring to fig. 8, the oral scanning system includes the oral scanning device 10 and the data processing device 20 of any one of the first to fourth embodiments; the oral cavity scanning device 10 is connected with the data processing device 20 through a wired or wireless connection, and the data processing device 20 may be a desktop computer, a notebook computer, a mobile phone, a cloud server, or the like.
The data processing device 20 is configured to obtain an image of a target dentition of the patient from the acquired oral scanning device 10, and obtain a three-dimensional model of the target dentition.
In this embodiment, the plurality of third cameras in the oral scanning device 10 may send the photographed images to the data processing device 20, the data processing device 20 synthesizes the labial image, the maxillofacial image, and the lingual image of the target dentition, and after the labial image, the maxillofacial image, and the lingual image of the target dentition are obtained, the data processing device 20 may perform three-dimensional fusion imaging to obtain a three-dimensional model of the target dentition. The target dentition can be an independent upper dentition or an independent lower dentition, and can also comprise the upper dentition and the lower dentition at the same time, so that a corresponding three-dimensional model can be obtained.
In one example, the digital impression of the oral cavity can store information of a patient in a clinical diagnosis and treatment process, and the oral cavity scanning system in the embodiment can also be used for shooting an image of the teeth of the patient in an oral treatment process to obtain the digital impression.
While the preferred embodiments of the present invention have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.
These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.
Claims (10)
1. An oral scanning device, comprising: a plurality of cameras and holders; the cameras are respectively arranged on the fixator;
the fixator is used for being fixedly placed inside the oral cavity of a patient;
when the fixator is fixedly placed in the oral cavity of a patient, each camera is used for shooting images of at least part of teeth on the target dentition of the patient, and the shooting ranges of the cameras cover all teeth of the target dentition of the patient;
when the oral cavity of the patient is scanned, the images shot by the plurality of cameras at the same time are synthesized to obtain the image of the target dentition of the patient.
2. The oral scanning device of claim 1, wherein the holder comprises: the tooth socket is provided with tooth sockets, and the shape of the tooth sockets is matched with the dental arch of a patient;
the plurality of cameras comprise a first camera group, a second camera group and a third camera group;
the first camera group is fixed on the facing towards the labial side of the teeth of the patient, the second camera group is fixed on the facing towards the maxillofacial part of the teeth of the patient, and the third camera group is fixed on the facing towards the lingual side of the teeth of the patient;
the shooting range of the first camera group covers the labial side surfaces of the teeth of the patient, the shooting range of the second camera group covers the dento-maxillofacial surfaces of the teeth of the patient, and the shooting range of the third camera group covers the lingual side surfaces of the teeth of the patient;
when carrying out oral cavity scanning to the patient, the facing cover is established on patient's target dentition, the image synthesis that a plurality of cameras in the first camera group were shot simultaneously obtains the labial surface image of target dentition, the image synthesis that a plurality of cameras in the second camera group were shot simultaneously obtains the dentognathic surface image of target dentition, the image synthesis that a plurality of cameras in the third camera group were shot simultaneously obtains the lingual surface image of target dentition, the image of target dentition includes: labial, dento-maxillofacial, and lingual images of the target dentition.
3. The oral scanning device of claim 1, wherein the holder comprises: a first arcuate fixation section; the shape of the inner arch of the first arch-shaped fixing part is matched with the shape of the labial side surface of the target dentition; the plurality of cameras are fixed on the first arched fixing part, the first arched fixing part is used for being fixedly placed between the target dentition and the lips of the patient, and the shooting ranges of the plurality of cameras cover the complete labial side of the target dentition of the patient;
when the oral cavity of a patient is scanned, images shot by the plurality of cameras at the same time are synthesized to obtain a labial surface image of the target dentition; the labial image comprises any one or any combination of the following:
a labial image of the upper dentition, a labial image of the lower dentition, and a labial image of the occlusal state of the upper and lower teeth.
4. The oral scanning device of claim 1, wherein the holder comprises: a second arcuate fixation portion; the shape of the outer arch of the second arch-shaped fixing part is matched with the shape of the lingual side of the target dentition; the plurality of cameras are fixed on the second arched fixing part, the second arched fixing part is used for being fixedly placed between the target dentition and the tongue of the patient, and the shooting ranges of the plurality of cameras cover the complete lingual side of the target dentition;
when the oral cavity of a patient is scanned, images shot by the plurality of cameras at the same time are synthesized to obtain a lingual side image of the target dentition; the lingual image comprises any one or any combination of the following:
lingual images of upper dentition, lingual images of lower dentition, and lingual images of upper and lower occlusal status.
5. The oral scanning device of claim 1, wherein the holder comprises: the shape of the U-shaped fixing part is matched with the shape of the dentognathic face of the target dentition; the U-shaped fixing part is used for being fixed between the upper dentition and the lower dentition of a patient, the plurality of cameras are fixed on the U-shaped fixing part, and the shooting ranges of the plurality of cameras cover the complete dentognathic face of the target dentition of the patient;
when the patient is scanned in the oral cavity, images shot by the plurality of cameras at the same time are synthesized to obtain a dentognathic face image of the target dentition; the dento-maxillofacial image includes: an upper dentofacial image and/or a lower dentofacial image.
6. The oral scanning device of claim 2 or 5, wherein the oral scanning device is further connected to a data processing device;
the oral cavity scanning device is used for sending the dentognathic face images of the target dentition in a plurality of treatment periods to the data processing device, so that the data processing device can compare the dentognathic face images of the target dentition in at least two treatment periods, and the running track data of each tooth in the target dentition in the at least two treatment periods can be obtained.
7. The oral scanning device of claim 6, wherein the trajectory data comprises: the back and forth movement distance of the teeth, the left and right movement distance of the teeth, and the height variation data of the teeth.
8. The oral scanning device of claim 1, further comprising: a wireless communication module disposed on the holder; the oral cavity scanning device is connected to a data processing device through the wireless communication module;
when the patient is scanned in the oral cavity, the oral cavity scanning device sends the image of the target dentition to the data processing device through the wireless communication module.
9. The oral scanning device of claim 1, further comprising: the power supply unit is arranged on the fixer, is electrically connected with the cameras respectively, and is used for supplying power to the cameras.
10. An oral scanning system comprising the oral scanning device of any one of claims 1 to 9 and a data processing device connected to the oral scanning device;
the data processing equipment is used for obtaining an image of a target dentition of a patient according to the obtained oral cavity scanning equipment, and obtaining a three-dimensional model of the target dentition.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021212859064 | 2021-06-09 | ||
| CN202121285906 | 2021-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113425233A true CN113425233A (en) | 2021-09-24 |
Family
ID=77759145
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121514123.9U Active CN216135848U (en) | 2021-06-09 | 2021-07-05 | Oral cavity scanning device and system |
| CN202110758679.0A Pending CN113425233A (en) | 2021-06-09 | 2021-07-05 | Oral cavity scanning device and system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121514123.9U Active CN216135848U (en) | 2021-06-09 | 2021-07-05 | Oral cavity scanning device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN216135848U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114285975A (en) * | 2021-12-27 | 2022-04-05 | 江西边际科技有限公司 | Asynchronous image variable angle image pickup equipment |
| CN115349967A (en) * | 2022-08-19 | 2022-11-18 | 首都医科大学附属北京口腔医院 | Display method, display device, electronic equipment and computer readable storage medium |
-
2021
- 2021-07-05 CN CN202121514123.9U patent/CN216135848U/en active Active
- 2021-07-05 CN CN202110758679.0A patent/CN113425233A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114285975A (en) * | 2021-12-27 | 2022-04-05 | 江西边际科技有限公司 | Asynchronous image variable angle image pickup equipment |
| CN114285975B (en) * | 2021-12-27 | 2023-06-02 | 江西边际科技有限公司 | Asynchronous image variable angle image pickup device |
| CN115349967A (en) * | 2022-08-19 | 2022-11-18 | 首都医科大学附属北京口腔医院 | Display method, display device, electronic equipment and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN216135848U (en) | 2022-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20240008731A1 (en) | User interface for taking images of a patient's teeth with a mobile device and a retractor | |
| KR101506476B1 (en) | A device prooviding align teeth data and a method to produce a transparent braces using this | |
| US20220015878A1 (en) | Method and system for acquiring data from an individual for preparing a 3d model | |
| JP5016311B2 (en) | Intraoral panoramic image capturing apparatus, intraoral panoramic image capturing system | |
| KR101359757B1 (en) | Method and apparatus for preparing denture | |
| CN216135848U (en) | Oral cavity scanning device and system | |
| EP2775956B1 (en) | Method for producing a dental element or aid for adjusting the teeth | |
| CN107080554B (en) | Temporomandibular joint measuring method and dental lamina preparation method | |
| JP3040997B1 (en) | Maxillary tooth size determination device | |
| CN112451151B (en) | Orthodontic model establishing method utilizing mixed reality technology | |
| CN110246571A (en) | Tooth data processing method | |
| US20240090983A1 (en) | Method for ensuring functional occlusion for customized orthodontic devices | |
| Zambrana et al. | Jaw tracking integration to the virtual patient: A 4D dynamic approach | |
| KR102239741B1 (en) | Scanmarker for facebow, and method of facebow transfer to virtual articulator | |
| WO2022171911A1 (en) | Occipital optoelectronic chin rest | |
| KR20210056141A (en) | Apparatus for superimposing teeth image onto face image | |
| Panther | Impact of orthodontic brackets on merging intraoral scans with 3D facial images | |
| Sigouin | A novel method to integrate intra-oral scan models with 3D facial images | |
| Att et al. | Registration of patient-relevant references in edentulous jaws using intraoral scanners: simplification of the clinical procedure. | |
| EP4316415A1 (en) | Intraoral scanner | |
| US20240189076A1 (en) | Method of generating manufacturing parameters during a dental procedure for a dental prosthesis | |
| Lin et al. | Virtual Articulators | |
| JP2024029381A (en) | Data generation device, data generation method and data generation program | |
| Agarwala et al. | The value of clinical photography | |
| CN113499093A (en) | X-ray film holder for implant evaluation and manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |