JP7140376B2 - Orthodontic support device and orthodontic support program - Google Patents

Description

The present invention relates to an orthodontic support device and an orthodontic support program that support long-term orthodontic treatment.

Orthodontic treatment involves applying orthodontic force to move the teeth to be orthodontically aligned in order to achieve the ideal dentition for the patient, and sometimes applying orthodontic force to adjacent teeth that interfere with the movement of the orthodontic teeth. After the tooth is moved ahead of the tooth, a correction force is applied to the tooth to be corrected to move it.
It is known that when performing orthodontic treatment, a computer determines the direction of movement of teeth to be corrected and the policy of orthodontic treatment by converting the state of the dentition from the patient into data (for example, Patent Document 1). See ~3.).

The method and system for incremental tooth movement described in US Pat. operating the computer to reposition the teeth to generate a final digital data set representing the final dentition with the repositioned teeth, and from the initial dentition to the final dentition A plurality of intermediate digital data sets representing a progressive series of successive dentitions are generated.

The method for manufacturing a transparent brace described in Patent Document 2 is divided into a number of steps generated by performing correction processing based on the patient's current tooth data transferred from the attending dentist and the contents of correction by the attending dentist. According to the orthodontic tooth data, a large number of molds are manufactured, and a transparent material is vacuum pressure-bonded to the large number of molds to manufacture a transparent orthodontic device.

The computer system-aided design of a dental appliance described in US Pat. is configured to reposition one or more teeth from an initial position to an adjusted position.

JP 2008-18253 A JP 2014-519392 A Japanese Patent Publication No. 2018-504191

The conventional orthodontic support devices described in Patent Documents 1 to 3 are for manufacturing orthodontic appliances while considering how to move the teeth to be corrected. However, since orthodontic treatment requires a long period of time, it is difficult for the patient to know whether the treatment is progressing well or whether the tooth to be orthodontically moved has not moved from the expected position. Therefore, the patient may stop the orthodontic treatment in the middle.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an orthodontic support device and an orthodontic support program that alleviate patient anxiety during orthodontic treatment, increase motivation for treatment, and support long-term continuation of treatment. .

The orthodontic support apparatus of the present invention comprises: route setting means for setting a planned treatment route from the position of the tooth to be corrected at the start of treatment to the position at the end of treatment; progress processing means for outputting treatment progress information to an output means based on the distance of the mid-treatment route based on the position of and the distance of the planned treatment route.

Further, the orthodontic support program of the present invention comprises a computer, route setting means for setting a planned treatment route from a position at the start of treatment of a tooth to be corrected to a position at the end of treatment; It is characterized by functioning as progress processing means for outputting treatment progress information to output means based on the distance of the mid-treatment route from the position to the mid-treatment position and the distance of the planned treatment route.

According to the present invention, the progress processing means outputs treatment progress information based on the distance of the planned treatment route set by the route setting means and the distance of the mid-treatment route. can be grasped.

The progress processing means may update the planned treatment route to a route passing through the position during treatment when the position of the tooth to be corrected during treatment deviates from the planned treatment route set by the route setting means. can.
Even if the tooth to be corrected moves along a detoured route different from the planned one, the progress processing means can calculate the degree of progress in line with the actual situation, so accurate progress information can be provided to the patient.

When the movement of the tooth to be corrected is accompanied by the movement of the adjacent tooth, the path setting means defines a movement path from a position at the start of treatment of the adjacent tooth to a position at the end of treatment as the planned treatment path. and the progress processing means adding the distance of the intermediate treatment route of the adjacent tooth to the distance of the intermediate treatment route of the tooth to be corrected as the distance of the intermediate treatment route, and outputting the progress information. can be done.
Since the progress processing means can output progress information by adding up all the distances of the teeth to be moved, it is possible to present to the patient that the orthodontic treatment is steadily progressing.

The progress processing means can include the percentage calculated from the planned treatment route and the mid-treatment route in the progress information and output the progress information.
Since the progress processing means includes progress information expressed as a percentage calculated from the planned treatment route and the in-progress route, the patient can quantitatively grasp the degree of progress.

According to the present invention, the patient can grasp the progress of the orthodontic treatment, so that the patient's anxiety during the orthodontic treatment can be alleviated, the motivation for the treatment can be increased, and the patient can be supported to continue the treatment over a long period of time. can be done.

1 is a diagram for explaining the configuration of an orthodontic support system using an orthodontic support device according to an embodiment of the present invention; FIG. FIG. 2 is a diagram for explaining the configuration of the orthodontic support device shown in FIG. 1; FIG. 4 is a diagram for explaining orthodontic treatment using aligners produced based on a pretreatment model and a treatment model. FIG. 11 is a diagram for explaining the setting of the planned treatment route, (A) is a diagram of an example of the screen when setting the position of the tooth to be corrected at the start of treatment, and (B) is a screen at the end of the treatment of the tooth to be corrected. FIG. 10C is a diagram of an example of a screen when setting a position, and FIG. (A) is a diagram showing an example of progress information displayed on a display means, and (B) is a partially enlarged view of a row of teeth including teeth to be corrected in (A). It is a figure which shows an example of the progress information described in the e-mail. FIG. 10 is a diagram for explaining that the position of the tooth to be corrected during treatment is deviated from the planned treatment route and a new planned treatment route is set; FIG. 10 is a diagram for explaining a case in which not only the teeth to be corrected but also the adjacent teeth are moved;

An orthodontic support device according to an embodiment of the present invention will be described with reference to the drawings.
The orthodontic support device 10 shown in FIG. 1 supports patient C's orthodontic treatment. The orthodontic support apparatus 10 is a computer installed in a dental laboratory and running an orthodontic support program.
The orthodontic support device 10 can communicate with an information providing device 21 for notifying the progress of orthodontic treatment and a terminal device 22 such as a smartphone operated by the patient C via the Internet W, which is an example of an electric communication line. It is connected to the.
A printing device 23, a 3D scanner device 24, and a 3D printer device 25 are connected to the orthodontic support device 10 as peripheral devices.
The information providing apparatus 21 may be a computer installed in a dental laboratory, a computer operated as a rental server, or a computer installed in an operating company that provides orthodontic support services.

As shown in FIG. 2, the orthodontic support apparatus 10 includes communication means 101, 3D scanner control means 102, 3D model processing means 103, 3D printer control means 104, route setting means 105, and progress processing means 106. , mail processing means 107 , print control means 108 , display means 109 , input means 110 and storage means 111 .

The communication means 101 receives data received from the Internet W and outputs it to each means of the orthodontic support apparatus 10, and inputs transmission data from each means of the orthodontic support apparatus 10 and transmits it to the Internet W. or

The 3D scanner control means 102 is connected to the 3D scanner device 24 and has a function of capturing 3D data from the 3D scanner device 24 .
The 3D model processing means 103 has the function of displaying the 3D model on the display means 109, changing the 3D model according to the operation of the input means 110, and converting the 3D model into manufacturable 3D data. I have.
The 3D printer control means 104 is connected to the 3D printer device 25 and outputs 3D data to the 3D printer device 25 .

The route setting means 105 has a function of setting a planned treatment route from the position at the start of treatment of the tooth to be corrected to the position at the end of treatment.
The progress processing means 106 sends the treatment progress information to the mail processing means 107 based on the distance of the mid-treatment route and the distance of the planned treatment route based on the position of the tooth to be corrected from the start of treatment to the position during the treatment. , the function of outputting to the print control means 108 or the display means 109 .

The mail processing means 107 functions as an output means for generating a mail sentence based on the progress information from the progress processing means 106 and transmitting an electronic mail to a mail server (not shown) addressed to the patient's mail address.
The printing control means 108 is connected to the printing device 23, and functions as output means for generating a print sentence based on the progress information from the progress processing means 106 and printing it on a paper medium.

The display means 109 functions as output means for displaying display data from various means. The display means 109 can be an LCD, an organic EL display, a CRT, or the like.
The input means 110 is operated by an operator to output input data, and may be a keyboard, a mouse, a touch panel, or the like.

The storage means 111 stores various programs, various settings and data. The storage means 111 can be a hard disk drive device or a flash memory. The storage means 111 may be built in the orthodontic support apparatus 10, or may use a storage service on the cloud.

An orthodontic support device according to an embodiment of the present invention configured as described above will be described with reference to the drawings.
At a dental clinic, a dentist takes an impression from the oral cavity of a patient using an impression material to prepare a concave mold, and then prepares a convex dental model from the concave mold using gypsum or the like. Hereinafter, this dental model is referred to as a pretreatment model M1 (see FIGS. 1 and 3).
Then, the dentist sends the pre-treatment model M1 to the dental laboratory.
In the dental laboratory, the dental technician operates the input means 110 of the orthodontic support device 10 to instruct scanning, and the 3D scanner control means 102 operates the 3D scanner device 24 to generate 3D data of the pretreatment model M1. is taken into the storage means 111 .

The dental technician operates the input means 110 and instructs the path setting means 105 to read the 3D data of the pre-treatment model M1 from the storage means 111. First, the treatment setting screen shown in FIG. , to set the position P1 at the start of treatment of the tooth T1 to be corrected.
Next, the dental technician operates the input means 110 to instruct the path setting means 105 to move the orthodontic tooth T1, thereby moving the orthodontic tooth T1 as shown in FIGS. 4(B) and 4(C). A position P2 at the end of treatment is set.

At this time, when moving straight from position P1 at the start of treatment to position P2 at the end of treatment, the route setting means 105 indicates the shortest distance from the start of treatment to the end of treatment by a straight line as the planned treatment route. . If the patient moves in a straight line and bends several times along the way, that route is set as it is as the planned treatment route.
Further, when moving the tooth T1 to be corrected so as to draw a circular arc from the position P1 at the start of treatment to the position P2 at the end of treatment, by inputting an arc curve as the planned treatment route using the input means 110, An arcuate curve is shown.

In this embodiment, since the tooth T1 to be corrected moves the maxillary right central incisor in a curved line, an arcuate curved line is shown as the planned treatment route R1 as shown in FIGS. 4(B) and 4(C). ing.

After setting the planned treatment route R1 and formulating a treatment plan in this manner, the dental technician molds a mouthpiece-type orthodontic appliance (hereinafter referred to as an aligner) to be applied in the first stage. Create a dental model for Hereinafter, this dental model will be referred to as a graded model M2 (see FIGS. 1 and 3).

To prepare the step-by-step model M2, first, the dental technician operates the input means 110 based on the 3D data of the pretreatment model M1 displayed on the display means 109 by the 3D model processing means 103 to select teeth to be corrected first. 3D data moved to the position P2 at the stage of . The 3D model processing means 103 stores the 3D data in the storage means 111 .

The step-by-step model M2 in the first step for producing the aligners is a state in which the tooth to be corrected is moved to the end position of the first step on the movement path from the position at the start of treatment to the position at the end of treatment. become a thing.
For example, if the treatment plan is to take impressions from patient C every month, create a tooth model, and create new aligners, the 3D data will be in the state where the teeth to be corrected have moved after one month.

Next, the dental technician operates the input means 110 and instructs the 3D printer control means 104 to produce the graded model M2 by the 3D printer device 25 based on this 3D data.

As shown in FIGS. 1 and 3, the dental technician prepares multiple types of aligners A1 to A3 based on the staged model M2. In this embodiment, three pieces with three types of hardness are produced.
Aligners A1-A3 can be made by conventional methods. For example, the aligners A1 to A3 can be produced by pressing a plurality of types of resin plates having different thicknesses against the graded model M2 and transferring the shape of the graded model M2 to the resin plate.

These aligners A1-A3 are sent to the dental clinic. At the dental clinic, patient C is first fitted with the softest aligner A1.
After wearing the aligner A1 for a predetermined period of time, for example, about 10 days, the patient C wears the aligner A2 with the hardness of the next step. In this manner, the patient C wears aligners that become harder at each step, and finally wears the hardest aligner A3 in order to proceed with corrective treatment.

Then, when the first stage is finished, a dental model is made from the patient C again. Hereinafter, this dental model is referred to as an in-treatment model M3. This in-treatment model M3 is produced in the same procedure as the pre-treatment model M1.
The dentist sends the in-treatment model M3 to the dental laboratory.
In the dental laboratory, the dental technician operates the input means 110 of the orthodontic support apparatus 10 shown in FIG. The 3D data of the model M3 is taken into the storage means 111 .

By scanning the 3D data of the in-treatment model M3, 3D data of the state where the tooth to be corrected has moved one month later is created in the same manner as when the staged model M2 was created from the pretreatment model M1. Based on this, the 3D printer device 25 produces the next staged model M2.
Then, the staged model M2 of the next stage is sent to the dental laboratory to fabricate the aligners A1 to A3 of the next stage.

Such orthodontic treatment is repeated step by step.
Then, for example, at the 7th stage (7th month), the teeth to be corrected are quite close to the target positions, but I am worried whether the patient C is progressing smoothly with the orthodontic treatment due to the long treatment period. It is time to become

Therefore, the dental technician operates the input means 110 to instruct the progress processing means 106, so that the progress processing means 106 reads out the 3D data of the model M3 under treatment that has been 3D-scanned in the seventh stage from the storage means 111 and , the position at the start of treatment of the tooth to be corrected set by the path setting means 105 is read, and the distance of the mid-treatment route is calculated based on the position at the start of treatment of the tooth to be corrected to the position during treatment of the tooth to be corrected. to parse
Then, the progress processing means 106 displays the progress information of the treatment on the display means 109 which is an example of the output means based on the distance of the planned treatment route and the distance of the mid-treatment route, or controls the print control means 108. It is possible to print on a paper medium from the printer 23 via the printer 23 .

For example, the progress information can be displayed or printed as shown in FIG. In the "correction progress news" shown in FIG. 5, the pretreatment model M1 (before treatment), the in-treatment model M3, and the orthodontic target tooth T1 at the end of treatment can be superimposed in different colors. In addition to superimposing teeth shown in different colors, contour lines of different thicknesses, solid lines, dotted lines, dashed-dotted lines, etc., can be used to represent teeth in an identifiable manner. A description of the treatment is also provided. In addition, the degree of progress is shown as a percentage calculated from the planned treatment route and the mid-treatment route.
The dental technician can grasp the degree of progress of the patient C by viewing the progress information displayed on the display means 109 . When the progress information is printed, the dental technician can hand-deliver the printed matter to the patient C by mailing the printed matter together with the aligners A1 to A3.

Further, the progress processing means 106 outputs the progress information to the mail processing means 107, so that the mail processing means 107 sends the progress information as an e-mail E as shown in FIG. (not shown), or an e-mail can be sent to the dental clinic and handed to the patient C by the dentist. Furthermore, the progress information can be transmitted to the information providing device 21 via the communication means 101, which is an example of output means. The information providing device 21 can be a server that provides progress information in the form of a web page by accessing from the terminal device 22 using a browser.
The information providing device 21 can transmit the progress information to the patient C through various SNSs in addition to providing progress information to the terminal device 22 through its own site.

The patient C receives the e-mail E from the mail server with the terminal device 22, accesses the information providing device 21 with the terminal device 22, and browses the progress information posted on the web page, thereby performing corrective treatment. You can keep track of your progress while staying at home.

In this way, the progress processing means 106 displays the progress information of the treatment based on the distance of the intermediate treatment route and the distance of the planned treatment route, sends it by e-mail E, or mails it as mail. Alternatively, the patient C can grasp the progress of the orthodontic treatment because it is handed over. Therefore, the orthodontic support device 10 can alleviate patient anxiety and support long-term continuation of treatment.

In addition, since the progress information output by the progress processing means 106 includes the progress information expressed as a percentage calculated from the planned treatment route and the mid-treatment route, the patient can quantitatively grasp the degree of progress. .

In the above example, the case where the tooth T1 to be corrected has moved along the planned treatment route R1 as shown in FIG. 4 has been described, but as shown in FIG. When it was planned to move (see the planned treatment route R1), but because the tooth T1 to be corrected has moved linearly (see the route R2), the position P3 during treatment of the tooth T1 to be corrected deviates from the planned treatment route R1. (A tooth to be corrected before treatment is indicated by a solid line, a tooth to be corrected after treatment is indicated by a dotted line, and a tooth to be corrected during treatment is indicated by a dashed line.).

In this case, the progress processing means 106 updates the planned treatment route to a route passing through the position P3 in the middle of the treatment. For example, in FIG. 7, a route R2 from the position P1 at the start of treatment of the tooth to be corrected to a position P3 during treatment and a route R3 for moving the tooth to be corrected from this position P3 to the position P2 at the end of treatment are newly added. the planned treatment route. By doing so, even if the teeth to be corrected move along a detour route different from the planned one, the degree of progress can be calculated according to the actual situation, so accurate progress information can be provided to the patient. .

Further, in orthodontic treatment, adjacent teeth that interfere with the movement of the tooth to be corrected may be moved. In particular, when the adjacent teeth are moved ahead of the tooth to be corrected, it takes more time to move the tooth to be corrected, so it is necessary to patiently continue the orthodontic treatment, which makes the patient anxious.
In this case, if the planned treatment route is set only for the teeth targeted for orthodontics, it will appear that the teeth targeted for orthodontics have not moved much in spite of the long treatment period. may invite.

Therefore, when the movement of the tooth to be corrected is accompanied by the movement of the adjacent tooth, the path setting means 105 adds the movement path of the adjacent tooth from the position at the start of treatment to the position at the end of treatment to the planned treatment path. .
Then, the progress processing means 106 adds the distance of the intermediate treatment route of the adjacent tooth to the distance of the intermediate treatment route of the correction target tooth as the distance of the intermediate treatment route, and outputs progress information.

In the example shown in FIG. 8, the correction of the maxillary right central incisor T2 is accompanied by movement of the left central incisor T3, which is an adjacent tooth.
A planned treatment route R41 from a position P41 at the start of treatment to a position P42 at the end of treatment is planned for the right central incisor T2. For the right central incisor T3, planned treatment routes R42 and R43 are planned from a position P51 at the start of treatment to a position P52 at the end of treatment.

Therefore, to correct the left and right central incisors T2 and T3, first, the central incisor T3 is moved from the position P51 to the position P53 along the route R42 to create a movement space for the central incisor T2. Next, the central incisor T2 is moved from position 41 to position 42 along path R41. Then, the central incisor T3 is moved from the position P53 to the position P52 along the route R43. When the central incisor T3 moves to the position P52, correction of the central incisor T2 is completed.

In this case, for the correction of the central incisors T2 and T3, the total distance of the planned treatment routes R41, R42 and R43 is the distance of the moving route. In addition, the distance of the mid-treatment route is the distance from the position P41 at the start of treatment of the central incisor T2 to the position P43 in the middle of treatment, and the distance from the position P51 at the start of treatment of the central incisor T3 to the position P54 in the middle of treatment. distance is added.
By doing so, progress information can be output by adding up all the distances of the teeth to be moved, so that it is possible to present to the patient that the orthodontic treatment is steadily progressing.

The present embodiment has been described above. In this embodiment, orthodontic treatment is performed using aligners. can be applied as providing the patient with

Further, in the present embodiment, as shown in FIG. 1, a pre-treatment model M1 and a treatment-in-progress model M3 prepared at a dental clinic are sent to a dental laboratory, and the step-by-step models are prepared at the dental laboratory. M2 was prepared to prepare aligners A1 to A3.
However, at a dental clinic, 3D data obtained by scanning the oral cavity with an intraoral scanner, 3D data obtained by reading a concave impression obtained from the patient's oral cavity with an impression material using a scanner device, a pretreatment model M1 made from the concave mold, or The 3D data obtained by reading the model M3 under treatment with the 3D scanner device 24, the 3D data obtained by reading the model M1 before treatment or the model M3 under treatment with the 3D scanner device 24 from the scan center in the office are transmitted to the dental laboratory, and the dental laboratory You may make it produce the model M2 according to stage at a place.
Further, the entire process from the preparation of the pre-treatment model M1 or the in-treatment model M3 to the preparation of the aligners A1 to A3 may be performed in the in-hospital laboratory of the dental clinic.

Furthermore, in the present embodiment, the path setting means 105 allows the dental technician to operate the input means 110 to input the position of the tooth to be corrected at the start of treatment and the position at the end of treatment, and a straight line between them is entered. The planned treatment route was set by inputting a connection with a , a connection with an arc curve, or a route that moves in a straight line and bends several times along the way.
However, this planned treatment route can also be automatically calculated based on the conditions of the tooth to be corrected and its adjacent teeth.
For example, by accumulating the planned treatment route and the actual route, which is the actual orthodontic route, for each treatment as route information, and using AI (artificial intelligence) based on this route information, the tooth to be corrected can be treated. By determining the optimum planned treatment route from the position at the start of treatment to the position at the end of treatment, homogenization of orthodontic treatment can be achieved.

Also, in the progress processing means 106, when the movement of the tooth to be corrected by the actual correction deviates from the planned treatment route, the optimum planned treatment route to the position at the end of treatment may be automatically determined. good.

INDUSTRIAL APPLICABILITY The present invention is suitable for dental clinics that perform orthodontic treatment and dental laboratories that prepare dental models.

10 Orthodontic Support Device 101 Communication Means 102 3D Scanner Control Means 103 3D Model Processing Means 104 3D Printer Control Means 105 Path Setting Means 106 Progress Processing Means 107 Mail Processing Means 108 Print Control Means 109 Display Means 110 Input Means 111 Storage Means 21 Information Providing device 22 Terminal device 23 Printing device 24 3D scanner device 25 3D printer device A1 to A3 Aligner C Patient E E-mail R1, R41, R42, R43 Planned treatment route R2, R3 Route M1 Pretreatment model M2 Stage-specific model M3 During treatment Model P1, P2, P3, P41, P42, P43, P51, P52, P53, P54 Position T1 Orthodontic tooth T2, T3 Central incisor W Internet

Claims (5)

route setting means for setting a planned treatment route from a position at the start of treatment of the tooth to be corrected to a position at the end of treatment;
progress processing means for outputting treatment progress information to an output means, based on the distance of the mid-treatment route based on the position of the tooth to be corrected from the start of treatment to the position during treatment and the distance of the planned treatment route; orthodontic support device. The progress processing means updates the planned treatment route to a route that passes through the position of the tooth to be corrected when the position of the tooth to be corrected during treatment is off the planned treatment route set by the route setting means. 1. The orthodontic support device according to 1. When the movement of the tooth to be corrected is accompanied by the movement of the adjacent tooth, the path setting means defines a movement path from a position of the adjacent tooth at the start of treatment to a position at the end of treatment in the planned treatment path. add,
2. The progress processing means outputs the progress information by adding the distance of the interim treatment route of the adjacent tooth to the distance of the interim treatment route of the tooth to be corrected as the distance of the interim treatment route. 3. The orthodontic support device according to 2 above. 3. The orthodontic support apparatus according to claim 1, wherein said progress processing means includes a percentage calculated from said planned treatment route and said intermediate treatment route in said progress information and outputs the progress information. the computer,
route setting means for setting a planned treatment route from the position at the start of treatment of the tooth to be corrected to the position at the end of treatment;
progress processing means for outputting treatment progress information to an output means based on the distance of the mid-treatment route based on the position of the tooth to be corrected from the start of treatment to the position of the mid-treatment and the distance of the planned treatment route; An orthodontic support program that works.

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