Implant immediate false tooth of water-drop-shaped artificial tooth

Abstract

The utility model provides an immediate implant denture of a drop-shaped artificial tooth, the immediate implant denture consists of a base plate and a dentition fixedly embedded on the base plate, the dentition consists of a plurality of plastic artificial teeth, cheek side necks of the plastic artificial teeth are inwards retracted, and cover ridge parts close to alveolar ridge crests are drop-shaped. The included angle between the connecting line of the high point of the appearance of the plastic artificial tooth and the central point of the neck and the long axis of the tooth body is 30-40 degrees; and the width range of the dentures positioned on the inner side and the outer side of the central point of the neck part of the plastic artificial tooth covering the alveolar ridge crest is 2-4mm. According to the requirement of the implant immediate denture in the manufacturing process, the cheek-side neck of the plastic artificial tooth is designed to be retracted inwards, so that the coverage area of the bottom of the implant immediate denture and the alveolar ridge crest is convenient to form a water drop shape, the contact area with the alveolar ridge crest is reduced as far as possible, the probability of food impaction is reduced, and the implant immediate denture is convenient to clean; therefore, a good self-cleaning effect is formed, a good oral environment of a patient can be maintained, and formation of bacteria and plaque is reduced.

Description

Technical Field

[0001] The utility model relates to the field of oral cavity, in particular to an implantable immediate denture of a teardrop-shaped artificial tooth. Background Art

[0002] Resin artificial teeth are mainly made of methyl methacrylate layered die-cast artificial teeth. They are suitable as crown materials for restoring the appearance and function of natural tooth crowns in the repair of edentulous and missing teeth. In the repair of removable dentures and edentulous jaw restorations, the artificial teeth are arranged with their cap ridges close to the alveolar ridge. The current resin artificial teeth are designed and produced according to this demand and characteristics. However, the structural morphology of existing resin artificial teeth cannot meet the requirements of immediate restoration of dentures in edentulous jaws. The main deficiencies are as follows:

[0003] 1) Existing artificial teeth are primarily based on the traditional edentulous jaw and removable partial dentures. Their necks are overly convex, and the ridge often covers the buccal side of the alveolar ridge, connecting with the base to form a complete denture. These artificial teeth are used for implant-based immediate dentures. Food debris easily accumulates between the restoration and the alveolar ridge, making it difficult for patients to clean, leading to bacterial growth and impaired wound recovery. Figure 1 and Figure 2 The figure shows a cross-sectional view of a single artificial tooth in an existing implant-ready denture. As shown in the figure, the root of the traditional artificial tooth 1 is too large, resulting in an excessively large base coverage area. This results in a larger gap area between the base 2 and the alveolar ridge, making it easier for more bacteria to grow.

[0004] 2) Existing artificial teeth are difficult to form a good contact shape on the alveolar ridge without adjustment and grinding each artificial tooth one by one is time-consuming. Implantable immediate dentures need to be completed in the shortest possible time to prevent postoperative hematoma that makes it difficult for the implantable immediate denture to be positioned in the mouth.

[0005] 3) If the hard layer of the artificial tooth is removed, the strength of the plastic tooth will be reduced and it will be easy to wear. At the same time, the outer layer of the plastic tooth will be easily stained, causing bacteria to adhere to the tooth surface.

[0006] 4) The base resin wrapped around the buccal neck can be easily removed during the later grinding and modification of implant-ready immediate dentures, causing the finished resin teeth to fall off during later use. Utility Model Content

[0007] This utility model provides an implantable immediate denture with a teardrop-shaped artificial tooth. It uses a plastic artificial tooth with a teardrop-shaped root, which reduces the area of ​​the base covering the alveolar ridge, thereby creating a good self-cleaning effect. It eliminates the need for technicians to manually grind the tooth during the production process, thus avoiding a series of problems such as reduced strength, staining, and tooth loss caused by excessive grinding. The specific solution is as follows:

[0008] An implant-ready denture with a teardrop-shaped artificial tooth, the implant-ready denture is fixed in the mouth by a plurality of implant screws, the implant-ready denture is composed of a base and a dentition fixedly embedded on the base, the dentition is composed of a plurality of plastic artificial teeth,

[0009] The buccal neck of the plastic artificial tooth is retracted and the root close to the alveolar ridge is teardrop-shaped. The tip root of the plastic artificial tooth is close to the top of the alveolar ridge. The angle between the line connecting the highest point of the plastic artificial tooth and the center point of the neck and the long axis of the tooth is 30°-40°.

[0010] The width of the base located on the inner and outer sides of the center point of the neck of the plastic artificial tooth covering the alveolar ridge is between 2-4 mm.

[0011] Furthermore, the base is made of resin material.

[0012] Furthermore, the angle is 38°.

[0013] According to the needs of the implant-ready immediate denture during the production process, the utility model designs the buccal neck of the plastic artificial tooth to be retracted, which facilitates the molding of the bottom of the implant-ready immediate denture to form a teardrop shape, minimizes the contact area with the alveolar ridge top and reduces the probability of food impaction, facilitates cleaning, and forms a good self-cleaning effect, which helps patients maintain a good oral environment and reduces the formation of bacteria and plaque. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 A cross-sectional view of an artificial tooth for implanting an immediate denture in the prior art;

[0016] Figure 2 A cross-sectional view of another artificial tooth for implanting an immediate denture in the prior art;

[0017] Figure 3 This is a cross-sectional view of an artificial tooth in the improved implant-ready immediate denture of the present invention;

[0018] Figure 4 This is a cross-sectional view of another artificial tooth in the improved implant-assisted immediate denture of the present invention. DETAILED DESCRIPTION

[0019] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0020] In order to fully understand the present invention, detailed steps and detailed structures will be provided in the following description to illustrate the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below. However, in addition to these detailed descriptions, the present invention may also have other implementation methods.

[0021] Reference Figure 3-4 As shown, the present invention provides an implant-mounted immediate denture, which is fixed in the mouth by multiple implant screws. The implant-mounted immediate denture consists of a base 10 and a dentition fixedly mounted on the base 10, and the dentition consists of a plurality of plastic artificial teeth 11. In order to minimize the coverage area of ​​the base 10 of the implant-mounted immediate denture, the present invention retracts the buccal neck of the plastic artificial tooth 11 and forms a teardrop-shaped cap ridge near the top of the alveolar ridge. The angle α between the line connecting the highest point of the plastic artificial tooth 11 and the center point of the neck and the long axis of the tooth is 30°-40°. In a preferred embodiment, the angle α is 38°.

[0022] The teardrop-shaped root design of the plastic artificial tooth 11 significantly reduces the root area of ​​the plastic artificial tooth 11, thereby enabling a more compact design for the base 10 that encases the artificial tooth root. Rigorous software simulations and physical model testing have shown that with this improved implant-ready denture, the width W of the base covering the alveolar crest, located on both sides of the center of the plastic artificial tooth's neck, can be controlled to within 4mm.

[0023] Compared to the 10-20mm base 10 coverage width of existing technologies, this new design significantly reduces the contact area between the base 10 and the alveolar crest. This significantly improves the self-cleaning performance of the implant-mounted immediate denture and effectively prevents food impaction, fully meeting the needs of patients.

[0024] A further optimized design is that the width of the base 10 located on both sides of the center point of the plastic artificial tooth neck covering the alveolar ridge should not be less than 2mm. This is to avoid the base 10 being too small and resulting in insufficient strength, thereby preventing the base 10 from breaking during use.

[0025] The clinical implementation steps of this utility model are as follows:

[0026] 1) Facebow transfer is a crucial step in the complete denture fabrication process, crucial for both denture stability and comfort. First, we fabricate the maxillary framework using zero-expansion plaster to ensure accurate facebow transfer. This step requires a precise reproduction of the patient's oral structure, laying the foundation for subsequent denture fabrication.

[0027] 2) Adjust the abutment according to the occlusal space. This ensures adequate stability within the patient's mouth. Adjust the height of the temporary abutment, generally no less than 4mm, to ensure base strength. Add reinforcement wire to further enhance base stability and prevent deformation during use.

[0028] 3) Once the abutment is adjusted, we can begin the maxillary tooth arrangement. This step requires aligning the teardrop-shaped roots of the plastic artificial teeth to the alveolar crest, based on the denture's inherent characteristics. Furthermore, the teeth are arranged according to the curvature of a typical denture to ensure stability and aesthetics. During the arrangement process, we examine the teeth from various angles to ensure a balanced occlusion and avoid cantilevering at the distal end.

[0029] Occlusal adjustment is a crucial step in the fabrication of complete dentures. The goal is to achieve the best possible occlusion within the patient's mouth and enhance comfort. During this process, the dentures require careful adjustments based on the patient's oral condition and occlusal requirements.

[0030] In short, the process of making a complete denture is crucial, including occlusal adjustment using the face bow, adjusting the abutment, aligning the teeth with the maxillary articulator, and adjusting the occlusal position. Only by strictly following these steps can the stability and comfort of the denture be ensured, ensuring that the patient feels satisfied with the result during use.

[0031] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-mentioned disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. An implanted immediate denture of a teardrop-shaped artificial tooth, wherein the implanted immediate denture is fixed in the mouth by a plurality of implant screws, the implanted immediate denture is composed of a base (10) and a dentition fixedly embedded on the base (10), and the dentition is composed of a plurality of plastic artificial teeth (11), characterized in that: The buccal neck of the plastic artificial tooth (11) is retracted and the cap ridge close to the alveolar ridge top is teardrop-shaped, and the angle between the line connecting the high point of the outer shape of the plastic artificial tooth (11) and the center point of the neck and the long axis of the tooth body is 30°-40°; The width of the base (10) located on the inner and outer sides of the center point of the neck of the plastic artificial tooth covering the alveolar ridge top is between 2-4 mm.

2. The teardrop-shaped artificial tooth implant immediate denture as claimed in claim 1, characterized in that: The base (10) is made of resin material.

3. The teardrop-shaped artificial tooth implant immediate denture as claimed in claim 1, characterized in that: The angle is 38°.

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