Periodontal disease management system

Abstract

To provide a periodontal disease management system capable of improving a user's motivation to use the system.SOLUTION: A periodontal disease management system 1 comprises a user terminal 2 and a server 3. The server 3 executes an extraction process (STEP 1) of extracting a user M from a database. The user terminal 2 executes a registration process (STEP 12 to 14) for registering registration data of the user M in the server 3, an imaging process (STEP 21) for capturing stained tooth-surface images 8a to 8c, and an image transmission process (STEP 22) for transmitting the stained tooth-surface images 8a to 8c to a management device. The server 3 further executes a determination process (STEP 23) of determining a periodontal disease condition of the user M on the basis of the stained tooth-surface images 8a to 8c, and a determination result transmission process (STEP 25) of transmitting a determination result of the determination process to the user terminal 2.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a periodontal disease management system for managing a user's periodontal disease status. [Background technology]

[0002] A management system for managing periodontal disease and the like is known from the prior art, such as that described in Patent Document 1. In this management system, stained tooth surface image data, which is image data of a user's tooth surface stained with a plaque staining agent, is periodically collected and stored in a database, and the stained tooth surface image data is analyzed using artificial intelligence to determine the user's risk of periodontal disease and dental caries. Based on the results of this determination, the system provides the user with advice on oral hygiene behavior. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7442860 Summary of the Invention [Problem to be solved by the invention]

[0004] According to the conventional management system described above, if a user has a high level of interest in their own oral hygiene, the user may use the system, but if the user has little interest in their own oral hygiene, the system may not be used.

[0005] The present invention has been made to solve the above-mentioned problems, and has an object to provide a periodontal disease management system that can increase users' motivation to use the system. [Means for solving the problem]

[0006] In order to achieve the above object, the invention of claim 1 is a periodontal disease management system for managing the periodontal disease status of users who are members of the organization using plaque staining agent and registration codes distributed by the organization to users, and is characterized in that it comprises a management device that performs an extraction process to extract users who are to receive the plaque staining agent and registration codes from a database, and a user terminal that is configured to be able to communicate with the management device and performs a registration process in which a user who has received the plaque staining agent and registration code uses the registration code to register the user's registration data in the management device, a photographing process to photograph a stained tooth surface image, which is an image of the user's tooth surface stained with plaque staining agent, and an image transmission process to transmit the stained tooth surface image to the management device, and when a stained tooth surface image of a user whose registration data has been registered is transmitted from the user terminal, the management device is further configured to perform a judgment process to judge the user's periodontal disease status based on the stained tooth surface image, and a judgment result transmission process to transmit the judgment result of the judgment process to the user terminal.

[0007] According to this periodontal disease management system, a plaque stain and a registration code are distributed by an organization to users who are members of the organization. The users can then use the plaque stain and the registration code to send stained tooth surface images to a management device and receive assessment results for their periodontal disease status. By distributing the plaque stain and the registration code from the organization to users, even users who are not particularly interested in their own periodontal disease can be encouraged to use the system. This can help curb the increase in medical expenses for oral treatment in municipalities that manage specific areas. Note that, in this specification, "members of an organization" includes employees of the organization if the organization is a corporation, and includes employees of the municipality as well as residents of the municipality's jurisdiction if the organization is a municipality. Note that, in this specification, "periodontal disease" includes periodontal disease, periodontitis, and the like.

[0008] In the present invention, it is preferable that the stained tooth surface image includes a frontal stained tooth surface image obtained by photographing the user's stained tooth surface from the front, a left stained tooth surface image obtained by photographing the user's stained tooth surface from the left side, and a right stained tooth surface image obtained by photographing the user's stained tooth surface from the right side.

[0009] According to this periodontal disease management system, the stained tooth surface images include a front stained tooth surface image, a left stained tooth surface image, and a right stained tooth surface image, so that when determining the user's periodontal disease state based on the stained tooth surface images in the determination process, the accuracy of the determination can be improved compared to when determining the periodontal disease state from a single stained tooth surface image. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram showing a schematic configuration of a periodontal disease management system according to an embodiment of the present invention. [Figure 2] 10 is a flowchart showing a distribution destination determination process. [Figure 3] FIG. 10 is a diagram showing a registration code sheet and a color chart sticker. [Figure 4] FIG. 10 is a sequence diagram showing a user registration process. [Figure 5] FIG. 10 is a diagram showing an input screen. [Figure 6] FIG. 10 is a sequence diagram showing periodontal disease determination processing. [Figure 7] FIG. 10 is a diagram showing an example of an assisting device worn in the mouth. [Figure 8] FIG. 10 is a diagram showing an example of a tooth surface image. [Figure 9] FIG. 10 is a diagram showing an example of a stained tooth surface image. [Figure 10] FIG. 10 is a diagram showing an example of a plaque chart. [Figure 11] FIG. 10 is a diagram showing an example of a determination result display screen. [Figure 12] FIG. 10 is a diagram showing another example of the determination result display screen. [Figure 13] FIG. 10 is a diagram illustrating an example of a map screen. [Figure 14] FIG. 10 is a diagram showing an example of a coupon. [Figure 15] FIG. 10 is a diagram showing another example of a stained tooth surface image. [Figure 16] FIG. 10 is a diagram showing another example of a plaque chart. [Figure 17] FIG. 1 is a diagram showing an example of a stained tooth surface image taken at a dental clinic. [Figure 18] FIG. 10 is a diagram showing another example of the determination result display screen. [Figure 19] FIG. 10 is a diagram illustrating an example of a history display screen. DETAILED DESCRIPTION OF THE INVENTION

[0011] A periodontal disease management system according to one embodiment of the present invention will be described below with reference to the drawings. As will be described below, a periodontal disease management system 1 (see FIG. 1) of this embodiment is for determining a user's periodontal disease state based on a stained tooth surface image of the user.

[0012] 1, the periodontal disease management system 1 of this embodiment includes a plurality of user terminals 2 (only one is shown) and a server 3 as a management device. In this periodontal disease management system 1, the user terminals 2 and the server 3 are configured to be able to communicate with each other via a network 4. This network 4 is configured by a wireless communication network, a wired communication network, etc.

[0013] This periodontal disease management system 1 is equipped with multiple user terminals 2, but the following explanation will be given taking as an example the user terminal 2 owned by user M. This user M is a resident residing in an area under the jurisdiction of a local government, which will be described later.

[0014] The user terminal 2 is a smartphone type and includes a controller (not shown), a display 2a, a front camera 2b, a rear camera (not shown), a wireless communication device (not shown), etc. Application software for executing various control processes (described later) is installed in this controller.

[0015] The display 2a is configured with a capacitance type touch panel, and is disposed so that its surface faces the front of the user terminal 2. Although not shown, various icons corresponding to various application software are displayed on the display 2a.

[0016] Furthermore, when an input operation (for example, an operation such as tapping, swiping, pinching out, or pinching in) is performed by the user M on the display 2a, an operation signal representing the operation is output to the controller. Based on the operation signal, the controller executes various control processes, as will be described later.

[0017] The front camera 2b is also disposed so as to face the front of the user terminal 2. As the user M performs an input operation, as will be described later, the front camera 2b captures an image of the user M's tooth surface (see FIGS. 8 and 9, which will be described later). Note that an image of the user M's tooth surface may also be captured by a photographer other than the user M using the rear camera of the user terminal 2.

[0018] In this embodiment, the server 3 is used by a local government and executes various arithmetic processes described below, including communication processes with the user terminal 2. The server 3 includes a control unit, a storage unit, and a communication unit (none of which are shown).

[0019] The control unit is configured with a CPU, memory, an I / O interface, etc., and is configured to execute various control processes described below. The storage unit is configured with storage devices such as ROM, RAM, and HDD, and stores various databases described below.

[0020] Next, the recipient determination process executed by the server 3 will be described with reference to Figure 2. This recipient determination process determines the recipients of the registration preparation set from all residents living in the area under the jurisdiction of the local government. The contents of this registration preparation set will be described later.

[0021] As shown in Figure 2, first, a recipient extraction process (Figure 2 / STEP 1) is executed. In this recipient extraction process, a list of residents to whom the registration preparation set will be distributed is extracted by searching the resident database in the server 3 based on predetermined search criteria (e.g., age group). This resident database stores data on all residents in the area under the jurisdiction of the local government.

[0022] Next, a distribution output process (FIG. 2 / STEP 2) is executed, in which a list of residents to whom the registration preparation set is to be distributed, extracted as described above, is output from a printer (not shown).

[0023] As described above, after the distribution destination determination process is executed and a list of residents to whom the registration preparation set will be distributed is output, the local government will mail the registration preparation set to the residents based on this resident list. In the following explanation, we will use as an example a case where the above-mentioned user M is included in the resident list and therefore the registration preparation set is mailed to user M.

[0024] The registration preparation set includes a powdered plaque stain and explanatory materials (neither of which are shown) in addition to the registration code sheet 5 and color chart sticker 6 shown in Fig. 3. As shown in Fig. 3, a registration code 5a, which is a two-dimensional code, is printed on the registration code sheet 5, and this registration code 5a is used in the user registration process, which will be described later.

[0025] In addition, as will be described later, the color chart sticker 6 is used to perform color correction (white balance, RGB, etc.) of the tooth surface image when photographing it so that the color tone is consistent and not affected by fluorescent or LED light sources.

[0026] Next, the user registration process will be described with reference to Fig. 4. This user registration process is for user M to register his / her own registration data in the server after receiving the above-mentioned registration preparation set by mail.

[0027] 4, first, a registration request process is executed in the user terminal 2 (FIG. 4 / STEP 10). In this registration request process, when the user M operates the user terminal 2 to scan the registration code 5a via the rear camera of the user terminal 2, a registration request command is sent from the user terminal 2 to the server 3.

[0028] When this registration request command is received by the server 3, an input data transmission process is executed in the server 3 (FIG. 4 / STEP 11). In this input data transmission process, the input data is transmitted from the server 3 to the user terminal 2.

[0029] When this input data is received by the user terminal 2, first, an input screen display process is executed in the user terminal 2 (FIG. 4 / STEP 12). In this input screen display process, an input screen 20 as shown in FIG. 5 is displayed on the display 2a of the user terminal 2.

[0030] On this input screen 20, input fields for the user M to input his / her own registration data, such as address, age, sex, name of regular dental clinic, and questionnaire (chronic illness, etc.), are displayed.

[0031] Next, a registration data input process is executed (FIG. 4 / STEP 13). In the registration data input process, the above-mentioned various registration data are input to the user terminal 2 in accordance with an input operation by the user M.

[0032] After the registration data input process is executed, a registration data transmission process is executed (FIG. 4 / STEP 14). In this registration data transmission process, when a transmission operation is executed by user M, registration data is transmitted from the user terminal 2 to the server 3. In this embodiment, the processes in STEPs 13 to 14 correspond to the registration process.

[0033] When this registration data is received by the server 3, the server 3 executes a data registration process (FIG. 4 / STEP 15). In this data registration process, the registration data of the user M is registered in a database in the server 3.

[0034] 4 is an example of a configuration in which a registration request signal is transmitted from the user terminal 2 to the server 3 in response to scanning of the registration code, but a configuration in which a download request signal for the registration app is transmitted to the server 3 in response to scanning of the registration code may also be used. In that case, the registration app may be downloaded from the server 3 to the user terminal 2 by user M, and after installation, user M may use the registration app to register his / her own registration data to the server 3.

[0035] Next, the periodontal disease determination process will be described with reference to Fig. 6. This periodontal disease determination process is executed after the execution of the user registration process, and is intended to determine the periodontal disease state of user M based on an image of the tooth surface of user M.

[0036] As shown in Fig. 6, first, a tooth surface image capturing process is executed in the user terminal 2 (Fig. 6 / STEP 20). In this tooth surface image capturing process, a tooth surface image of user M is captured by the user himself / herself or a photographer other than the user. First, in preparation for capturing an image, user M wears an auxiliary tool (for example, auxiliary tool F as shown in Fig. 7) in his / her mouth to make it easier to capture an image of his / her tooth surface, and attaches a color chart sticker 6 to the inside of his / her mouth (or lower lip).

[0037] When the user M takes the photograph himself / herself after completing the above preparations for photographing, the front and left and right tooth surface images 7a to 7c as shown in Fig. 8 are photographed by the front camera 2b by the photographing operation of the user terminal 2 by the user M. Also, when a photographer other than the user takes the photograph, the front and left and right tooth surface images 7a to 7c are photographed by the rear camera by the photographing operation of the user terminal 2 by the photographer.

[0038] This front tooth surface image 7a is an image of user M's tooth surface photographed from the front, left tooth surface image 7b is an image of the tooth surface on the left side of user M, and right tooth surface image 7c is an image of the tooth surface on the right side of user M.

[0039] These images 7a to 7c are photographed after color correction (white balance, RGB, etc.) of the images is performed using a color chart sticker 6. Although the color chart sticker 6 is not shown in the left and right tooth surface images 7b and 7c, these images 7b and 7c are also photographed with the color chart sticker 6 included in the image composition, similar to the front tooth surface image 7a.

[0040] Next, the stained tooth surface image capturing process is executed on the user terminal 2 (FIG. 6 / STEP 21). In this stained tooth surface image capturing process, the user M's stained tooth surface image is captured by the user himself / herself or a photographer other than the user. First, in preparation for capturing the image, user M dissolves the powdered plaque staining agent in the registration set in water and holds the water in his / her mouth or applies it to his / her teeth to stain the surfaces with the plaque staining agent. He / she then places the above-described auxiliary device in his / her mouth and attaches the color chart sticker 6 to his / her oral cavity. Note that the method of staining the tooth surfaces is not limited to the above, and a cotton swab containing the staining solution in advance or a tablet-shaped plaque staining agent dissolved in water may also be used.

[0041] When the user M takes the photographs himself / herself after completing the above preparations for photographing, the front and left and right stained tooth surface images 8a to 8c are taken by the front camera 2b by the photographing operation of the user terminal 2 by the user M. When the photographs are taken by a photographer other than the user, the front and left and right stained tooth surface images 8a to 8c are taken by the rear camera by the photographing operation of the user terminal 2 by the photographer.

[0042] This front stained tooth surface image 8a is an image of user M's stained tooth surface photographed from the front, the left stained tooth surface image 8b is an image of the stained tooth surface on the left side of user M, and the right stained tooth surface image 8c is an image of the stained tooth surface on the right side of user M.

[0043] These images 8a to 8c are photographed after color correction (white balance, RGB, etc.) of the images is performed using a color chart sticker 6. Although the color chart sticker 6 is not shown in the left and right stained tooth surface images 8b and 8c, these images 8b and 8c are also photographed with the color chart sticker 6 included in the image composition, similar to the front stained tooth surface image 8a.

[0044] Next, a tooth surface image data transmission process is executed (FIG. 6 / STEP 22). In this tooth surface image data transmission process, the user M performs a transmission operation on the user terminal 2, and the tooth surface image data is transmitted from the user terminal 2 to the server 3. This tooth surface image data is configured to include the tooth surface images 7a to 7c and the stained tooth surface images 8a to 8c described above, as well as data such as the photographing date and time of these images.

[0045] When the server 3 receives this tooth surface image data, the server 3 executes an image assessment process (FIG. 6 / STEP 23). In this image assessment process, the periodontal disease state of the user M is assessed using the PCR (Plaque Control Record) method based on the three stained tooth surface images 8a to 8c.

[0046] Specifically, first, using a predetermined image recognition process (for example, CNN: Convolutional Neural Network), a plaque chart as shown in FIG. 10 is created from three stained tooth surface images 8a to 8c. This plaque chart is created such that when one tooth is divided into four blocks (mesial, distal, buccal, lingual), the blocks indicated by dotted lines in the figure are the blocks where plaque has adhered (i.e., the blocks where the tooth is stained), and the other blocks are the blocks where no plaque has adhered (i.e., the blocks where the tooth is not stained). In this case, mesial means the part closer to the center of the face, and distal means the part farther from the center of the face.

[0047] Next, the PCR value (unit: %) is calculated by the formula PCR value = (the number of tooth blocks indicated by dotted lines ÷ the total number of blocks) × 100. Then, as follows, the rank of user M is determined as one of ranks A to C based on the PCR value, and advice for user M is determined based on the determination result of the rank of user M.

[0048] · When the PCR value ≤ 20% Determination result: Rank A Advice: To keep this state, please undergo a periodontal disease examination once a year.

[0049] · When 20% < PCR value < 70% Determination result: Rank B Advice: Go to the dentist and undergo a periodontal disease examination.

[0050] · When 70% ≤ PCR value Determination result: Rank C Advice: It is recommended that you go to the dentist. Please undergo a periodontal disease examination.

[0051] After the image determination process is performed as described above, a data registration process is performed (FIG. 6 / STEP 24). In this data registration process, the various data (images 7a-7c, 8a-8c of user M, plaque chart, PCR value and rank determination results, etc.) are registered in the database in the server 3.

[0052] Next, a determination result transmission process is executed (FIG. 6 / STEP 25). In this determination result transmission process, the determination result data is transmitted from the server 3 to the user terminal 2. This determination result data is configured to include the above-mentioned various data, advice, date, etc.

[0053] When this determination result data is received by the user terminal 2, a determination result display process is executed in the user terminal 2 (FIG. 6 / STEP 26). In this determination result display process, a determination result screen 21 as shown in FIG. 11 is displayed on the display 2a of the user terminal 2.

[0054] As shown in the figure, the stained tooth surface image is displayed in the upper left corner of the judgment result screen 21, and the photographed date and time of the tooth surface image and the PCR value are displayed in the upper right corner of the figure. Furthermore, a plaque chart is displayed in the lower part of the figure. This allows user M to recognize his or her own periodontal disease state. The judgment result screen 21 may be configured to display the above-mentioned advice.

[0055] Furthermore, in this determination result display process, in addition to the determination result screen 21 of Fig. 11, or instead of the determination result screen 21, a determination result screen 22 as shown in Fig. 12 may be displayed. As shown in the figure, the determination result screen 22 displays the PCR value and advice to user M.

[0056] Furthermore, if the name of a regular dental clinic is not registered in the registration data of user M, a map screen 23 as shown in Fig. 13 may be configured to be displayed on the display 2a of the user terminal 2 after the determination result display process (STEP 26) in Fig. 6 is completed in order to encourage user M to visit a dental clinic. On this map screen 23, the location of the dental clinic closest to user M's residence is displayed with a pin 23a. This allows user M to know the location of the dental clinic closest to his or her residence.

[0057] 6 is completed, the local government may transmit a coupon 24 as shown in FIG. 14 to the user terminal 2 via e-mail or the like. This coupon 24 includes a two-dimensional code 24a, and by scanning this two-dimensional code 24a, user M can receive a benefit attached to the coupon 24 (for example, a toothbrush can be purchased at 20% off).

[0058] As described above, according to the periodontal disease management system 1 of this embodiment, the registration preparation set is mailed (distributed) to user M by a local government, and user M can use the plaque stain and registration code sheet 5 included in the registration preparation set to send stained tooth surface images 8a to 8c, etc. to server 3 and receive the assessment results of his or her periodontal disease state.

[0059] In this way, by distributing the registration set from the local government to user M, even if user M has little interest in his or her own periodontal disease, it is possible to increase user M's motivation to use the periodontal disease management system 1. This makes it possible to curb increases in medical expenses for oral treatment in local governments.

[0060] Furthermore, since the stained tooth surface images include a front stained tooth surface image 8a, a left stained tooth surface image 8b, and a right stained tooth surface image 8c, when the stained tooth surface images are used in the judgment process to judge the periodontal disease state of user M, the judgment accuracy can be improved compared to when the periodontal disease state is judged from a single stained tooth surface image.

[0061] Note that the embodiment is an example that describes a case where all of the user M's teeth are present, but depending on the user M, some teeth may be missing, and three stained tooth surface images 9a to 9c as shown in Figure 15 may be captured in the stained tooth surface image capturing process (Figure 6 / STEP 21).

[0062] In this case, a plaque chart such as that shown in FIG. 16 is created in the image assessment process (FIG. 6 / STEP 23). Note that the areas indicated by dark dots in FIG. 16 correspond to the missing tooth areas. Then, a PCR value is calculated based on this plaque chart. When calculating this PCR value, the total number of blocks is four times the number of remaining teeth. Furthermore, as described above, a rank assessment of user M is performed based on the PCR value.

[0063] Furthermore, although the embodiment is an example in which the user terminal is a terminal owned by user M, the user terminal may be a terminal provided at a dental clinic visited by user M. In that case, the user terminal at the dental clinic may be configured to execute the processes of steps 20 to 22 in FIG. 6, so that the tooth surface image data of user M is transmitted from the user terminal at the dental clinic to the server 3 and the judgment result data is transmitted to the user terminal 2.

[0064] At this time, as the stained tooth surface image data of user M photographed at the dental clinic, in addition to front and left and right stained tooth surface images 10a to 10c, upper and lower stained tooth surface images 10d and 10e are photographed, as shown in Fig. 17. Furthermore, in the user terminal 2, in the judgment result display process (STEP 26) of Fig. 6, a judgment result screen 25 as shown in Fig. 18 is displayed on the display 2a.

[0065] On this judgment result screen 25, stained tooth surface images of the front, left and right, and top and bottom are displayed in the upper left of the figure, and the date and time of photographing the tooth surface image, PCR value, and rank judgment result are displayed in the upper right of the figure. Furthermore, a plaque chart is displayed in the lower part of the figure.

[0066] Furthermore, if user M wishes to know the history of PCR values ​​as a history of the assessment results of his or her periodontal disease state, the system may be configured as described below. That is, a history request is sent from user terminal 2 to server 3, and then history data is sent from server 3 to user terminal 2, after which history display processing is executed on user terminal 2. In this history display processing, a history screen 26 as shown in Fig. 19 is displayed on display 2a.

[0067] This history screen 26 displays the PCR values ​​of user M for several past times (four times in the figure) together with the dates as a bar graph, thereby enabling user M to recognize the progress of his or her periodontal disease state.

[0068] Although the embodiment is an example in which a smartphone-type user terminal 2 is used, the user terminal of the present invention is not limited to this and may be any terminal capable of executing registration processing, photographing processing, and image transmission processing. For example, a combination of a small camera and a personal computer may be used as the user terminal.

[0069] Furthermore, although the embodiment is an example in which the server 3 is used as the management device, the management device of the present invention is not limited to this and may be any device capable of executing calculation processing and transmission / reception processing. For example, one or more personal computers may be used as the management device, or a combination of a server and a personal computer may be used as the management device.

[0070] On the other hand, in the embodiment, a two-dimensional code type registration code 5a is used as the registration code, but the registration code of the present invention is not limited to this and may be any code that can be used for user registration. For example, the registration code may be a code consisting of a numeric string, a code consisting of an alphabetic string, a code that combines a numeric string and an alphabetic string, or a barcode.

[0071] Furthermore, although the embodiment is an example in which tooth surface images 7a to 7c and stained tooth surface images 8a to 8c are captured using a color chart sticker 6, the tooth surface images 7a to 7c and stained tooth surface images 8a to 8c may also be captured without using this color chart sticker 6.

[0072] Furthermore, in the embodiment, the organization is a local government and the members of the organization are residents living in the jurisdiction of the local government, but instead, the organization may be a corporation and the members of the organization may be employees of the corporation. [Explanation of symbols]

[0073] 1 Periodontal disease management system 2. User terminal 3 Server (management device) 8a Frontal stained tooth surface image 8b Left stained tooth surface image 8c Right stained tooth surface image M User

Claims

1. A periodontal disease management system for managing the periodontal disease state of a user who is a member of an organization, using a plaque stain and a registration code distributed by the organization to the user, comprising: a management device that executes an extraction process to extract, from a database, the users to whom the plaque stain and the registration code are to be distributed; a user terminal configured to be able to communicate with the management device, and which executes a registration process in which the user, to whom the plaque stain and registration code have been distributed, uses the registration code to register the user's registration data in the management device; an imaging process in which a stained tooth surface image is taken, which is an image of the user's tooth surface stained with the plaque stain; and an image transmission process in which the stained tooth surface image is transmitted to the management device; Equipped with A periodontal disease management system characterized in that the management device is configured to further execute, when the stained tooth surface image of the user whose registration data has been registered is transmitted from the user terminal, a judgment process for judging the periodontal disease state of the user based on the stained tooth surface image, and a judgment result transmission process for transmitting the judgment result of the judgment process to the user terminal.

2. 2. The periodontal disease management system according to claim 1, A periodontal disease management system characterized in that the stained tooth surface images include a frontal stained tooth surface image taken from the front of the user's stained tooth surface, a left stained tooth surface image taken from the left side of the user's stained tooth surface, and a right stained tooth surface image taken from the right side of the user's stained tooth surface.

Images