Method for manufacturing a complete denture and complete denture

Abstract

This invention relates to the field of oral medicine and discloses a method for manufacturing complete dentures and a complete denture. The manufacturing method includes the following steps: S1: Obtaining the gingival lines of three clinically recognized standard tooth types of different sizes, and arranging them in a manner that coincides with the central axis and the central incisors; S2: Connecting the apical points of the corresponding gingival lines of the three standard tooth types to form multiple connecting lines, and connecting multiple connecting lines with reference to the trend of the lateral gingival line of the middle tooth type of the standard tooth type to form a radial corrugated surface; S3: Adjusting the corrugated surface with reference to the slope of the lateral and medial gingival lines of the middle tooth type to form a gingival corrugated surface; S4: Obtaining a tooth shape model in reverse according to the gingival corrugated surface, and locating the patient's dental arch line on the tooth shape model to obtain multiple tooth widths; S5: Selecting multiple standard teeth that fit within a standard tooth bank according to the multiple tooth widths, and arranging the multiple standard teeth on a denture bed model to form a complete denture model.

Description

Technical Field

[0001] This invention relates to the field of oral medicine, and more particularly to a method for manufacturing complete dentures and complete dentures. Background Technology

[0002] Currently, it takes about one to two weeks for patients with complete dentures to get their first set of complete dentures, from making the mouth mold to wearing them. This long time will greatly affect the patient's nutrition and quality of life during this period. Moreover, the lack of effective control over denture adhesion in the patient's mouth during this time will also increase the uncertainty of the later adaptation process.

[0003] Therefore, there is an urgent need for a method for manufacturing complete dentures and complete dentures in order to solve the above problems. Summary of the Invention

[0004] One objective of this invention is to provide a method for manufacturing complete dentures that can improve the timeliness of complete denture manufacturing while satisfying the aesthetics and practicality of complete dentures.

[0005] Based on the above concept, the technical solution adopted by this invention is as follows:

[0006] A method for manufacturing complete dentures is provided, comprising the following steps:

[0007] S1: Obtain the gingival line of three clinically recognized standard tooth shapes of different sizes, and arrange them according to the central axis and the overlap of the central incisors;

[0008] S2: Connect the tips of the corresponding gingival ridges of the three standard tooth profiles to form multiple connecting lines, and connect multiple connecting lines with reference to the trend of the lateral gingival ridge of the middle tooth profile of the standard tooth profile to form a radial wavy surface.

[0009] S3: Adjust the wavy surface according to the slope of the lateral and medial gingival lines of the central tooth type to form a gingival wavy surface;

[0010] S4: Obtain the tooth shape model in reverse according to the gingival ripple surface, and locate the patient's dental arch line on the tooth shape model to obtain multiple tooth widths;

[0011] S5: Select multiple standard teeth from the standard tooth bank based on the width of the teeth, and arrange the multiple standard teeth on the denture bed model to form a complete denture model.

[0012] As a preferred embodiment of the complete denture manufacturing method, S2 further includes optimizing the connecting line of the tip of the corresponding gingival line so that the connecting line of the corrugated surface at least connects the tip of the gingival line of the middle tooth type.

[0013] As a preferred embodiment of the complete denture manufacturing method, in S2, the extension length of the connecting line of the corrugated surface is L, 15mm≤L≤25mm.

[0014] As a preferred embodiment of the complete denture manufacturing method, in S4, the patient's dental arch line is formed based on multiple apical force points of the patient's jawbone.

[0015] As a preferred embodiment of the complete denture manufacturing method, in S4, the patient's dental arch line is positioned on the tooth profile model according to at least three positioning points, including the dental arch midline and two dental arch endpoints.

[0016] As a preferred method for manufacturing complete dentures, in S5, standard teeth for the upper teeth and standard teeth for the lower teeth can be obtained simultaneously based on the fit between the upper and lower teeth.

[0017] As a preferred method for manufacturing complete dentures, S5 also includes arranging multiple selected standard teeth according to the patient's gingival line.

[0018] As a preferred method for manufacturing complete dentures, S5 also includes obtaining a patient's dental model and optimizing it to obtain a denture bed model.

[0019] As a preferred embodiment of the complete denture manufacturing method, it further includes S6: filling the tooth shape part model with gingival-colored material to obtain a disc having a gingival part model, and processing the disc according to the complete denture model to form a complete denture.

[0020] Another objective of this invention is to provide a complete denture that can improve the timeliness of complete denture manufacturing while satisfying the aesthetics and practicality of complete dentures.

[0021] Based on the above concept, the technical solution adopted by this invention is as follows:

[0022] A complete denture is provided, which is manufactured according to the complete denture manufacturing method described above.

[0023] The beneficial effects of this invention are as follows:

[0024] The complete denture manufacturing method proposed in this invention includes the following steps: S1: Obtaining the gingival lines of three clinically recognized standard tooth types of different sizes, and arranging them in a manner that coincides with the central axis and the central incisors; S2: Connecting the apical points of the corresponding gingival lines of the three standard tooth types to form multiple connecting lines, and connecting multiple connecting lines with reference to the trend of the lateral gingival line of the central tooth type to form a radial corrugated surface; S3: Adjusting the corrugated surface with reference to the slope of the lateral and medial gingival lines of the central tooth type to form a gingival corrugated surface; S4: Obtaining a tooth shape model in reverse according to the gingival corrugated surface, and locating the patient's dental arch line on the tooth shape model to obtain multiple tooth widths; S5: Selecting multiple standard teeth that fit within a standard tooth bank according to the multiple tooth widths, and arranging the multiple standard teeth on the denture bed model to form a complete denture model. This complete denture manufacturing method uses clinically recognized standard tooth profile fitting to obtain the gingival corrugated surface, which better matches the actual patient's jawbone. Only the tooth profile model is designed, while the gingival model can be manufactured in various sizes according to the patient's needs during subsequent processing. Selecting standard teeth based on the patient's dental arch line also ensures that the stress points of the denture fit the patient's jawbone. Furthermore, the lateral gingival line of a standard tooth profile is often lower than the medial gingival line. Therefore, when designing the complete denture model, the lateral gingival corrugated surface is designed to be flat, while the medial gingival corrugated surface is sloped, ensuring the aesthetics of the tooth profile model. This complete denture manufacturing method allows for the pre-observation of the tooth profile model based on the gingival corrugated surface. When obtaining the patient's dental impression, the patient's dental arch line is obtained, allowing for the determination of the tooth width for the complete denture. Then, tooth arrangement and manufacturing can proceed, enabling patients to obtain a complete denture suitable for trial wear in a short time, resulting in higher efficiency.

[0025] The complete denture proposed in this invention is manufactured according to the above-mentioned complete denture manufacturing method, which can improve the timeliness of complete denture manufacturing while satisfying the aesthetics and practicality of complete dentures. Attached Figure Description

[0026] Figure 1 This is a flowchart of the complete denture manufacturing method provided in the embodiments of the present invention;

[0027] Figure 2 These are gingival line arrangement diagrams of three standard tooth types provided in this embodiment of the invention;

[0028] Figure 3 This is a first-view gingival ripple surface diagram provided in an embodiment of the present invention;

[0029] Figure 4 This is a second-view gingival ripple surface diagram provided in an embodiment of the present invention;

[0030] Figure 5 This is a third-view model diagram of the tooth profile provided in an embodiment of the present invention;

[0031] Figure 6 This is a fourth-view model diagram of the tooth profile provided in an embodiment of the present invention;

[0032] Figure 7 This is a layout diagram of the patient's dental arch line on the tooth shape model provided in an embodiment of the present invention;

[0033] Figure 8 This is a perspective view of the disk body provided in an embodiment of the present invention;

[0034] Figure 9 This is a 3D anatomical diagram of the disc body provided in this invention.

[0035] Figure 10 This is a schematic diagram showing that the disc body provided in this embodiment of the invention can be applied to the arrangement of teeth of different sizes.

[0036] In the picture:

[0037] 1. Gingival line of molar type; 2. Gingival line of medium type; 3. Gingival line of microdental type; 4. Patient's dental arch line; 41. Midline of dental arch; 42. End point of dental arch;

[0038] 10. Gingival corrugated surface; 101. Connecting line; 20. Disc body; 201. Tooth shape model; 202. Gingival model. Detailed Implementation

[0039] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0040] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0043] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0044] Reference Figures 1 to 10 This embodiment provides a method for manufacturing complete dentures, including the following steps: S1: Obtain three clinically recognized standard tooth profiles of different sizes, denoted as molar, intermediate, and microdont types, and arrange the gingival line 1 of the molar type, the gingival line 2 of the intermediate type, and the gingival line 3 of the microdont type according to the central axis and the central incisor overlap; S2: Connect the apical points of the corresponding gingival lines of the three standard tooth profiles to form multiple connecting lines 101, and connect the multiple connecting lines 101 with reference to the trend of the lateral gingival line of the intermediate type. S3: Adjust the wavy surface according to the slope of the outer and inner gingival lines of the central tooth shape to form the gingival wavy surface 10; S4: Obtain the tooth shape model 201 in reverse according to the gingival wavy surface 10, and locate the patient's dental arch line 4 on the tooth shape model 201 to obtain multiple tooth widths; S5: Select multiple standard teeth that fit in the standard tooth bank according to the multiple tooth widths, and arrange the multiple standard teeth on the denture bed model to form a complete denture model.

[0045] The complete denture manufacturing method provided in this embodiment uses clinically recognized standard tooth profile fitting to obtain the gingival corrugated surface 10, which better fits the actual patient's jawbone. Only the tooth profile model 201 is designed, while the gingival model 202 can be manufactured in various sizes according to the patient's needs during subsequent processing. Selecting standard teeth based on the patient's dental arch line 4 also ensures that the stress points of the denture fit the patient's jawbone. Furthermore, the lateral gingival line of the standard tooth profile is often lower than the medial gingival line. Therefore, when designing the complete denture model, the lateral gingival portion of the gingival corrugated surface 10 is designed to be flat, while the medial gingival portion exhibits a slope, based on the actual standard tooth profile, which also ensures the aesthetics of the tooth profile model 201. The complete denture manufacturing method provided in this embodiment can obtain a tooth shape model 201 in advance based on the gingival corrugated surface 10. When obtaining the patient's dental model, the patient's dental arch line 4 can be obtained to obtain the tooth width of the complete denture. Then, the teeth can be arranged and manufactured, so that the patient can obtain a complete denture that can be tried on in a short time, which is more efficient.

[0046] In step S2, the connecting line 101 corresponding to the tip of the gingival line is optimized so that the connecting line 101 of the corrugated surface connects at least the tip of the gingival line of the intermediate tooth profile. Based on the shape of the standard tooth profile, the corrugated surface has multiple corrugated surfaces connected sequentially. The connection point between adjacent corrugated surfaces is the connecting line 101 of the corrugated surface, that is, the connecting line 101 formed by connecting the tips of the corresponding gingival lines. In this embodiment, three standard tooth profiles are set. In actual implementation, the tips of the corresponding gingival lines of the three standard tooth profiles may not all be able to form a straight line. However, the connecting line 101 of the corrugated surface is a straight line, so the connecting line 101 can be optimized to meet aesthetic and practical requirements. When optimizing the connecting line 101 of the corrugated surface, the standard that the connecting line 101 of the corrugated surface connects at least the tip of the gingival line of the intermediate tooth profile can be referenced.

[0047] In S2, the extension length of the connecting line 101 of the corrugated surface is L, 15mm≤L≤25mm. The extension length of the connecting line 101 of the corrugated surface affects the size of the tooth profile model 201. The size range of the tooth profile model 201 should be able to adapt to the actual shape of the patient's jawbone to ensure that the tooth profile model 201 can be processed into the tooth body of the complete denture and that the tooth body is implanted in the denture bed.

[0048] In S4, the patient's dental arch line 4 is formed based on multiple apical stress points on the patient's jawbone. These stress points can be marked on the patient's jawbone model during the acquisition of the dental impression, and can be adjusted according to actual needs.

[0049] In S4, the patient's dental arch line 4 is positioned on the tooth profile model 201 based on at least three positioning points, including the dental arch midline 41 and two dental arch endpoints 42. For example... Figure 7 As shown, since the patient's dental arch line 4 may not be a standard dental arch line, there may be a significant bias in positioning the patient's dental arch line 4 on the tooth shape model 201, which may result in inconsistent sizes of each tooth. Based on the positioning of the patient's dental arch line 4 on the tooth shape model 201, the width of each tooth can be obtained. Once the tooth width is obtained, the standard tooth with the corresponding tooth width can be selected.

[0050] In S5, standard teeth for both the upper and lower teeth can be obtained simultaneously based on the compatibility between the upper and lower teeth. In practice, if the above operation is first performed on the upper teeth that conform to the standard tooth type, the tooth width of each upper tooth of the patient can be obtained, thereby obtaining the standard teeth for the upper teeth with the corresponding tooth width. Based on the compatibility between the upper and lower teeth in the dental bank, the standard teeth for the compatible lower teeth can be obtained at the same time.

[0051] In S5, when arranging selected standard teeth, the teeth can be arranged according to the patient's gingival line. Multiple standard teeth for the upper and lower jaws can be arranged simultaneously. The patient's gingival line is obtained when taking a dental impression. Arranging the standard teeth according to this line ensures that the force points during occlusion of the upper and lower teeth better match the patient's jawbone.

[0052] S5 also includes acquiring and optimizing patient dental models to obtain denture bed models. Patient dental models can be scanned into the tooth arrangement software for optimization and restoration to obtain denture bed models. Then, the pre-arranged standard teeth are placed on the denture bed models in the tooth arrangement software to obtain a complete denture model.

[0053] Furthermore, the complete denture manufacturing method also includes S6: filling the tooth shape model 201 with gingival-colored material to obtain a disc 20 having a gingival part model 202, and processing the disc 20 according to the complete denture model to form a complete denture. The aforementioned tooth shape model 201 is placed in the disc 20 mold, and then gingival-colored material is injected for filling, thus obtaining a disc 20 having a gingival part model 202. The gingival part model 202 is all gingival-colored, and the tooth shape model 201 is all tooth-colored. In this solution, the jawbone of the complete denture is obtained by cutting the gingival part model 202, and the denture itself is obtained by cutting the tooth shape model 201. That is, except for the denture, the other parts of the complete denture are gingival-colored, which is more consistent with the actual distribution of tooth and gingival color in the oral cavity, resulting in higher aesthetics.

[0054] like Figure 9As shown, when processing the disc body 20, the gingival part model 202 can be cut according to the denture bed model to obtain a denture bed that fits the patient. Then, the tooth shape part model 201 is cut according to the arrangement position of the standard teeth on the denture bed model to obtain a denture integrally formed with the denture bed. The size of the denture is the size of the selected standard teeth, and the setting position of the denture is the selected tooth arrangement position.

[0055] like Figure 10 As shown, in this embodiment, since the size of the tooth profile model 201 is set to have a radial length between 15mm and 25mm, which is the extension length of the aforementioned connecting line 101, when the tooth profile model 201 is cut to obtain a denture, the tooth profile model 201 has sufficient space to cut dentures that fit different sizes of dental arch lines to meet the needs of different patients.

[0056] This embodiment also provides a complete denture, manufactured according to the above-described complete denture manufacturing method. This complete denture uses clinically recognized standard tooth profile fitting to obtain the gingival corrugated surface 10, which better fits the actual patient's jawbone. Only the tooth profile model 201 is designed, while the gingival model 202 can be manufactured in various sizes according to the patient's needs during subsequent processing. Selecting standard teeth based on the patient's dental arch line 4 also ensures that the denture's stress points fit the patient's jawbone. Furthermore, the lateral gingival line of a standard tooth profile is often lower than the medial gingival line. Therefore, when designing the complete denture model, the lateral gingival portion of the gingival corrugated surface 10 is designed to be flat, while the medial gingival portion exhibits a slope, based on the actual standard tooth profile, which also ensures the aesthetics of the tooth profile model 201. When manufacturing the complete denture, a tooth shape model 201 can be obtained in advance based on the gingival corrugated surface 10. When obtaining the patient's dental model, the patient's dental arch line 4 can be obtained to obtain the tooth width of the complete denture. Then, the teeth can be arranged and manufactured, so that the patient can get a complete denture that can be tried on in a short time, which is more efficient.

[0057] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for manufacturing complete dentures, characterized in that, Includes the following steps: S1: Obtain the gingival line of three clinically recognized standard tooth shapes of different sizes, and arrange them according to the central axis and the overlap of the central incisors; S2: Connect the tips of the corresponding gingival ridges of the three standard tooth profiles to form multiple connecting lines (101), and connect multiple connecting lines (101) with reference to the trend of the lateral gingival ridge of the middle tooth profile of the standard tooth profile to form a radial wavy surface. S3: Adjust the wavy surface according to the slope of the outer and inner gingival lines of the central tooth type to form a gingival wavy surface (10). S4: Obtain the tooth shape model (201) in reverse according to the gingival corrugated surface (10), and locate the patient's dental arch line (4) on the tooth shape model (201) to obtain multiple tooth widths; the patient's dental arch line (4) is located on the tooth shape model (201) according to at least three positioning points, the at least three positioning points including the dental arch midline (41) and two dental arch endpoints (42). S5: Select multiple standard teeth that fit within the standard dental bank based on multiple tooth widths, and arrange these standard teeth on the denture bed model to form a complete denture model; S6: Fill the tooth shape part model (201) with gingival color material to obtain a disc (20) with gingival part model (202), and process the disc (20) according to the complete denture model to form a complete denture.

2. The method for manufacturing complete dentures according to claim 1, characterized in that, In S2, the connecting line (101) corresponding to the tip of the gingival line is optimized so that the connecting line (101) of the corrugated surface connects at least the tip of the gingival line of the middle tooth type.

3. The method for manufacturing complete dentures according to claim 2, characterized in that, In S2, the extension length of the connecting line (101) of the corrugated surface is L, 15mm≤L≤25mm.

4. The method for manufacturing complete dentures according to claim 1, characterized in that, In S4, the patient's dental arch line (4) is formed based on multiple apical force points of the patient's jawbone.

5. The method for manufacturing complete dentures according to claim 1, characterized in that, In S5, standard teeth for both the upper and lower teeth are obtained simultaneously based on the compatibility of the upper and lower teeth.

6. The method for manufacturing complete dentures according to claim 1, characterized in that, S5 also includes arranging multiple selected standard teeth according to the patient's gingival line.

7. The method for manufacturing complete dentures according to claim 6, characterized in that, S5 also includes obtaining patient dental models and optimizing them to obtain denture bed models.

8. Complete dentures, characterized in that, It is manufactured by the complete denture manufacturing method according to any one of claims 1 to 7.

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