CN219557612U

CN219557612U - Magnetic attraction combined denture

Info

Publication number: CN219557612U
Application number: CN202320544006.XU
Authority: CN
Inventors: 王陈淳; 陈善强; 王敏
Original assignee: Jiashan Weiding Dental Equipment Co ltd
Current assignee: Jiashan Weiding Dental Equipment Co ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-08-22
Anticipated expiration: 2033-03-17

Abstract

The utility model discloses a magnetic combined denture, which comprises a denture, an armature, a magnet, a base, a small screw, a plastic layer and a first groove. The magnet in the first groove is limited by the small screw, and when a patient feels that the magnetic force of the magnet is unsuitable in the trial stage of the denture, the small screw can be unscrewed to replace the magnet in the first groove. After the trial stage is finished, the plastic layer is used for limiting and sealing the small screw, so that the contact position between the base and the gum or the tooth root of a patient is smoother while saliva is prevented from entering, and discomfort of the patient during use is relieved.

Description

Magnetic attraction combined denture

Technical Field

The utility model relates to the technical field of false teeth, in particular to a magnetic combined false tooth.

Background

False teeth are a general term for prostheses made after partial or complete tooth loss in the upper and lower teeth. The magnetic combined denture is characterized in that a magnet is embedded into the denture, an armature is fixed in the tooth root, and when the denture is worn in the oral cavity, the denture is positioned by the attraction of the magnet, and a fixing force is generated. The magnetic combined denture is widely used for the reasons of easy disassembly and assembly, more beautiful appearance because of no metal hook and the like.

The magnetic combined denture is divided into a complete denture and a removable partial denture, wherein the removable partial denture needs to be tried out by a patient and selects a magnet magnetic force which is comfortable for the patient before the removable partial denture is formally used. In the prior art, the magnet is generally fixed in the denture, so that when the patient feels that the magnetic force of the magnet is inappropriate, the whole denture needs to be replaced, and the denture needs to be customized according to the size and the position of the missing teeth of the patient, so that the denture is troublesome and has high cost.

Disclosure of Invention

The utility model provides a magnetic combined denture, which can solve the problem that the whole denture needs to be replaced when a patient feels that the magnetic force of a magnet in the denture is not proper.

The utility model provides a magnetic combined denture, which comprises a denture, an armature, a magnet and a base, wherein the denture comprises a small screw, a plastic layer and a first groove; the number of false teeth is several, all fixed on the base; the lower end of each false tooth is provided with a first through hole, the first through hole is a round hole, the first through hole comprises an upper half part and a lower half part, and the radius of the lower half part is larger than that of the upper half part; on each denture, each first through hole is upwards provided with a first groove, and the first grooves are round grooves; threads matched with the small screws are arranged in the first grooves, and the small screws are arranged in the first grooves through threaded connection; a second groove is formed in the upper end of each first groove upwards, the area of each second groove is smaller than that of each first groove, and the magnet is arranged in each second groove; the armatures are fixedly arranged in the tooth roots, and each armature corresponds to one false tooth and one magnet; the plastic layer is disposed within the lower half at the lower end of each of the small screw heads.

By adopting the technical scheme, the magnet in the first groove is limited by the small screw, and when a patient feels that the magnetic force of the magnet is inappropriate in the trial period of the denture, the small screw can be unscrewed to replace the magnet in the first groove. After the trial stage is finished, the plastic layer is used for limiting and sealing the small screw, so that the contact position between the base and the gum or the tooth root of a patient is smoother while saliva is prevented from entering, and discomfort of the patient during use is relieved.

Further, a circle of first round grooves are formed in the lower half portion in an outward extending mode along the radial direction of the cross section of the lower half portion, and the first round grooves are located at the lower end of the small screw in the vertical direction.

By adopting the technical scheme, the first circular groove can limit the plastic layer in shape, and further prevent the plastic layer from falling off.

Further, a plastic film is also included, the plastic film being disposed between the small screw and the plastic layer.

By adopting the technical scheme, under the condition that a patient normally uses the denture, the magnet is replaced once in about three years generally, and when the magnet is replaced after the trial period is finished, the plastic film can prevent the plastic layer from being adhered with the small screw, so that the plastic layer and the small screw are affected to be taken out.

Further, the material of the small screw is hard plastic.

By adopting the technical scheme, compared with the metal material, the weight of the hard plastic is lighter, and a patient can feel lighter when using the hard plastic.

Further, the plastic layer, the small screw and the plastic film are all made of transparent plastic.

By adopting the technical scheme, the situation of the magnet is convenient to observe, and when black appears around the magnet, the magnet is replaced.

In summary, in the utility model, compared with the prior art, the magnetic combined denture can replace the magnet in the denture, and has the beneficial effects of being more convenient and saving cost.

Drawings

In order to better and clearly describe the embodiments of the present utility model or the technical solutions in the background art, the following description will describe the drawings used in the embodiments of the present utility model or the background art.

FIG. 1 is a view showing the overall structure of a magnetic combined denture;

FIG. 2 is a side view of a magnetic composite denture;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is an enlarged view of region B in fig. 3.

In the figure, 1, denture; 3. an armature; 4. a magnet; 5. root of tooth; 6. a base; 11. a small screw; 12. a plastic layer; 13. a plastic film.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the attached drawings and examples; the following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

Referring to fig. 4, a magnetic combined denture includes a denture 1, an armature 3, a magnet 4, a base 6, a small screw 11, a plastic layer 12 and a first groove.

Referring to fig. 1, a plurality of dentures 1 are fixed on the base 6. The manner of fixing the prosthetic appliance 1 to the base 6 is known in the art and will not be described here too much.

Referring to fig. 2, 3 and 4, in one embodiment, a first through hole is formed at a lower end of each denture 1 on the base 6, and the first through hole is a circular hole. On each denture 1, each first through hole is provided with one first groove upwards, the first groove is a round groove, and each first groove is located at the center of the denture 1 in which the first groove is located in the overlooking direction. The screw thread matched with the small screw 11 is arranged in the first groove, the small screw 11 is arranged in the first groove through threaded connection, and a cross or a straight notch is arranged on the head of the small screw 11, so that the screw is conveniently unscrewed by a screw driver.

Referring to fig. 2, 3 and 4, further, the first through hole includes an upper half portion and a lower half portion, the upper half portion is aligned with the first groove, the radius of the upper half portion is equal to the radius of the first groove, the radius of the lower half portion is greater than the radius of the upper half portion, and the lower half portion provides a setting position for the head of the small screw 11.

Referring to fig. 2, 3 and 4, a second groove is upwardly disposed at the upper end of each first groove, the area of the second groove is smaller than that of the first groove, and the magnet 4 is disposed in the second groove. The armature 3 is fixed in the tooth root 5, and the fixing manner of the armature 3 in the tooth root 5 is the prior art, and is not described herein too much. Each armature 3 corresponds to one of the prosthetic appliances 1 and one of the magnets 4. In one embodiment, the shape of the magnet 4 is preferably a cylinder or a rectangular parallelepiped. In the plan view, the positions of each pair of magnets 4 and the armature 3 correspond to each other. Further, the bottom surface of the magnet and the top surface of the armature 3 are parallel to each other.

Referring to fig. 4, the plastic layer 12 is disposed in the lower half portion and is located at the lower end of the head of each of the small screws 11, and the bottom surface of the plastic layer 12 is attached to the lower surface of the base 6. In one embodiment, the plastic layer 12 may be formed by using self-setting plastic powder, so that the plastic layer 12 and the base 6 may have a certain adhesion, so that the sealing performance at the first through hole is better. Further, a circle of first round grooves are formed in the lower half portion in an outward extending mode along the radius direction of the cross section of the lower half portion, the first round grooves are located at the lower end of the small screw 11 in the vertical direction, and the plastic layer 12 is filled in the first round grooves. By this arrangement, the first circular groove can limit the shape of the plastic layer 12, and further prevent the plastic layer 12 from falling off. In one embodiment, it is preferable to further comprise a plastic film 13, said plastic film 13 being arranged between said small screw 11 and said plastic layer 12. Because the patient normally uses the denture 1, the magnet 4 is replaced once, typically about three years, and when the magnet 4 is replaced after the trial period is completed, the plastic film 13 can avoid adhesion between the plastic layer 12 and the small screw 11, thereby affecting the removal of the plastic layer 12 and the small screw 11. In one embodiment, the material of the small screw 11 is preferably hard plastic. Because of the lighter weight of rigid plastics compared to metal materials, patients feel lighter when using them. Further, the plastic layer 12, the small screw 11 and the plastic film 13 are all made of transparent plastic. This arrangement facilitates observation of the condition of the magnet 4, and when black color appears around the magnet 4, the magnet 4 should be replaced.

Claims

1. The magnetic combined denture comprises a denture (1), an armature (3), a magnet (4) and a base (6) and is characterized by comprising a small screw (11), a plastic layer (12) and a first groove;

the number of false teeth (1) is several, and all the false teeth are fixedly arranged on the base (6); the lower end of each denture (1) is provided with a first through hole on the base (6), the first through hole is a round hole, the first through hole comprises an upper half part and a lower half part, and the radius of the lower half part is larger than that of the upper half part; each denture (1) is provided with a first groove upwards at each first through hole, and each first groove is a round groove; threads matched with the small screw (11) are arranged in the first groove, and the small screw (11) is arranged in the first groove through threaded connection; a second groove is formed in the upper end of each first groove upwards, the area of each second groove is smaller than that of each first groove, and the magnet (4) is arranged in each second groove; the armatures (3) are fixedly arranged in the tooth roots (5), and each armature (3) corresponds to one false tooth (1) and one magnet (4); the plastic layer (12) is arranged in the lower half and is positioned at the lower end of the head of each small screw (11).

2. The magnetic denture according to claim 1, wherein the lower half portion is provided with a ring of first round grooves extending outwards along the radius direction of the cross section of the lower half portion, and the first round grooves are positioned at the lower end of the small screw (11) in the vertical direction.

3. A magnetically attractable composite denture according to claim 1, further comprising a plastic film (13), said plastic film (13) being disposed between said small screw (11) and said plastic layer (12).

4. A magnetic denture according to claim 1, wherein the material of the small screw (11) is hard plastic.

5. The magnetic denture according to claim 3 or 4, wherein the plastic layer (12), the small screw (11) and the plastic film (13) are all made of transparent plastic.