Movable denture convenient to disassemble and assemble

Abstract

The invention relates to the technical field of false teeth, in particular to a removable false tooth convenient to disassemble and assemble. Comprising a supporting piece, an inner framework is fixedly connected in the supporting piece, the supporting piece and the inner framework are jointly provided with a plurality of tooth crowns which are distributed at equal intervals, clamping rings are fixedly connected to the two sides of the inner framework, two guide strips which are symmetrically distributed are fixedly connected to the inner sides of the clamping rings, the clamping rings and the guide strips are made of metal materials, and the clamping rings are made of metal materials. And the thermal expansion coefficient of the clamping ring is greater than that of the guide strip. By utilizing the characteristic that the clamping ring and the guide strip bend and deform according to the temperature, the width of the clamping ring at the normal temperature is larger than that of the abutment tooth, after the removable denture is placed in the oral cavity of a patient, the clamping ring and the guide strip are promoted to bend and deform by means of the temperature in the oral cavity, the abutment tooth is tightly held, and the removable denture is fixed; the fixing effect of the clamping ring and the guide strip on the abutment is controlled by utilizing the temperature, so that the removable denture is convenient to take off and wear.

Description

Technical Field

[0001] The present invention relates to the technical field of dentures, and in particular to a conveniently detachable removable denture. Background Art

[0002] The professional name of removable dentures is removable dentures, which mainly include two types: removable partial dentures and full dentures. The restoration principle is to use the remaining natural teeth in the mouth, the mucosa of the base covering area and the underlying alveolar bone tissue as the support basis, and to achieve retention through the denture's clasp (retainer) and base. The core function of removable dentures is to restore the shape and chewing function of missing teeth with the help of artificial teeth, and patients can take them off and put them on by themselves.

[0003] Clasps are usually wrapped around and fixed on healthy teeth (called abutment teeth) adjacent to the edentulous area. This is the main way for removable dentures to be retained. However, in order to ensure the stability of the denture during use (such as chewing and talking) and minimize the risk of it being lifted off or accidentally falling off, clasps are usually designed to be elastic. This elasticity enables the clasp to fit tightly against the abutment teeth and provide reliable retention. However, correspondingly, the tighter the fit between the clasp and the abutment teeth, the more inconvenient it is for the patient to remove and put on the denture. Summary of the Invention

[0004] The present invention provides a conveniently detachable removable denture, which overcomes the disadvantage that existing removable dentures are inconvenient to put on and take off.

[0005] The technical solution of the present invention is: a conveniently detachable removable denture, comprising: a support member, an inner skeleton fixedly connected to the support member, the support member and the inner skeleton jointly provided with a plurality of equally distributed crowns, clasps fixedly connected to both sides of the inner skeleton, two symmetrically distributed guide strips fixedly connected to the inner side of the clasp, the clasp and the guide strips are both made of metal, and the thermal expansion coefficient of the clasp is greater than the thermal expansion coefficient of the guide strip.

[0006] Furthermore, the position of the clamping ring close to the inner frame is provided with two symmetrically distributed first curved portions, and the position of the clamping ring away from the inner frame is provided with two symmetrically distributed second curved portions.

[0007] Furthermore, an elastic sleeve is fixedly connected to the circumferential side of the crown, and two symmetrically distributed extrusion grooves and two symmetrically distributed storage grooves are provided on the circumferential side of the crown. The two extrusion grooves and the two storage grooves are staggered. The extrusion grooves and the storage grooves are both filled with liquid. The liquid in the extrusion grooves is used to squeeze the elastic sleeve to bulge outward and squeeze the abutment tooth. A power component for providing power for the deformation of the elastic sleeve is provided on the crown.

[0008] Furthermore, the power assembly includes: a tooth base, an elastic ring, an extrusion column, an elastic member and two one-way pull balls, the support member and the inner skeleton are both fixed to the tooth base, the elastic ring is located between the tooth base and the tooth crown and is fixed to the two, the extrusion column is fixed to the tooth base, a power groove is provided in the tooth crown, the extrusion column slides in a sealed manner in the power groove, the elastic member is fixed in the power groove, the two one-way pull balls are both fixed to the elastic member, two first flow channels and two second flow channels connected to the power groove are provided in the tooth crown, the power groove, the first flow channel and the second flow channel are all filled with liquid, the first flow channel and the second flow channel are respectively connected to the adjacent storage tank and the extrusion groove, the elastic member is used to provide one-way blocking for the two first flow channels, the one-way pull ball is located in the adjacent second flow channel, and provides one-way blocking for the second flow channel.

[0009] Furthermore, the liquids in the extrusion tank, the storage tank, the power tank, the first flow channel and the second flow channel are all glycerin.

[0010] Furthermore, two symmetrically distributed reset flow channels are provided in the crown, and the extrusion groove is communicated with the adjacent storage groove through the adjacent reset flow channels.

[0011] Furthermore, titanium sheets are fixed to the opposite sides of the two elastic sleeves located at the sidemost edges of the support member.

[0012] Furthermore, the titanium sheet is located adjacent to the elastic sleeve and away from the inner skeleton.

[0013] Furthermore, there is a gap between two adjacent tooth crowns.

[0014] Furthermore, the inner side of the support member is made of silicone material.

[0015] The advantages and positive effects of the present invention compared with the prior art are: the present invention utilizes the characteristics of the clasp and the guide strip that bend and deform according to temperature, so that the width of the clasp at room temperature is greater than the width of the abutment tooth. When the removable denture is placed in the patient's mouth, the temperature in the mouth causes the clasp and the guide strip to bend and deform, "holding" the abutment tooth, thereby fixing the removable denture. The temperature is used to control the fixing effect of the clasp and the guide strip on the abutment tooth, thereby facilitating the removal and wearing of the removable denture.

[0016] Relying on the patient's chewing action when eating, the elastic sleeve is caused to expand and squeeze the abutment teeth. On the one hand, it improves the stability of the removable denture between the two abutment teeth and reduces the probability of the removable denture being detached or lifted up. On the other hand, the contact between the elastic sleeve and the abutment teeth generates friction, providing vertical friction for the removable denture, sharing the pressure of the removable denture on the gums, and providing protection for the gums.

[0017] The deformation of the elastic sleeve is controlled by the reset flow channel, so that the elastic sleeve applies extrusion force to the abutment teeth only when the patient is eating, thereby increasing the fixing effect of the abutment teeth on the removable denture. On the one hand, it improves the stability of the removable denture when the patient is eating daily, and on the other hand, it reduces the lateral uneven extrusion force exerted by the removable denture on the abutment teeth during daily non-eating periods, thereby reducing the probability of the removable denture causing damage to the abutment teeth.

[0018] The elastic sleeve deforms while the patient is eating, filling the gap between two adjacent crowns and reducing the probability of debris getting stuck in the gaps between the removable dentures. After the patient finishes eating, the elastic sleeve recovers, allowing the gaps between the removable dentures to reappear, making it easier to clean the debris in the gaps between the removable dentures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 Schematic diagram of the three-dimensional structure of the endoskeleton and crown of the present invention; Figure 3 An exploded view of the endoskeleton, crown, and elastic sleeve of the present invention; Figure 4 Schematic diagram of the three-dimensional structure of the clamping ring and the guide strip of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the extrusion column and the elastic member of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the elastic member and the one-way pull ball of the present invention.

[0020] In the above drawings: 1-support member, 2-inner skeleton, 3-crown, 4-clasp, 401-first curved portion, 402-second curved portion, 5-guide strip, 6-elastic sleeve, 601-extrusion groove, 602-storage groove, 7-tooth base, 8-elastic ring, 9-extrusion column, 901-power groove, 10-elastic member, 101-first flow channel, 11-one-way pull ball, 111-second flow channel, 12-reset flow channel, 13-titanium sheet. DETAILED DESCRIPTION

[0021] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings.

[0022] Example 1

[0023] This embodiment provides a removable denture that is easy to assemble and disassemble, so as to solve the problem that the existing removable denture that is fixed by elastic clasps is inconvenient to put on and take off, and is convenient for patients to use.

[0024] See also Figures 1 to 4 , a convenient and detachable removable denture, comprising: a support member 1, the support member 1 is a simulated gum, an inner skeleton 2 is fixedly connected to the support member 1, the inner skeleton 2 is made of titanium metal, the support member 1 and the inner skeleton 2 are jointly provided with two crowns 3, the number of the crowns 3 here is determined according to the actual number of missing teeth of the patient; clasps 4 are fixedly connected to the left and right sides of the inner skeleton 2, the clasps 4 are used to clamp the lower part of the abutment teeth (the abutment teeth are the patient's own teeth that can provide support for the removable denture), and the clasps 4 use the anatomical characteristics of the abutment teeth being wide at the top and narrow at the bottom to limit the denture; two symmetrically distributed guide strips 5 are fixedly connected to the inner side of the clasp 4, both of which are made of metal, and the thermal expansion coefficient of the clasp 4 is greater than the thermal expansion coefficient of the guide strip 5, so that the clasp 4 and the guide strip 5 together form a bimetallic structure that can bend when heated, and the materials of the clasp 4 and the guide strip 5 are respectively 316L stainless steel and nickel-titanium alloy.

[0025] See also Figure 4 This paragraph is attached Figure 4 Taking the perspective of the main view as an example for description, the right part of the clasp 4 is provided with two symmetrically distributed first bending parts 401, and the left part of the clasp 4 is provided with two symmetrically distributed second bending parts 402. The first bending part 401 is used to drive the left part of the clasp 4 to swing when heated, so that the left part of the clasp 4 shrinks inward, increases the clamping force of the clasp 4 on the abutment tooth, and enhances the stability of the removable denture; the second bending part 402 can increase its bending amplitude when heated, pull the clasp 4 to the left, and further enhance the stability of the removable denture.

[0026] The above arrangement can achieve the goal of making the width of the clasp 4 at room temperature larger than the width of the abutment tooth by utilizing the characteristics of the bending and deformation of the clasp 4 and the guide strip 5 according to the temperature. When the removable denture is placed in the patient's mouth, the temperature in the mouth causes the clasp 4 and the guide strip 5 to bend and deform, "holding" the abutment tooth, thereby fixing the removable denture. The fixing effect of the clasp 4 and the guide strip 5 on the abutment tooth is controlled by temperature, thereby facilitating the removal and wearing of the removable denture.

[0027] Before installing the removable denture, the patient first rinses the clasp 4 with water below 20°C to increase the width of the clasp 4 in the front-to-back direction. Then the patient installs the removable denture to the position where the teeth are missing, so that the two clasps 4 are respectively placed on the circumference of the left and right abutment teeth. As the temperature in the oral cavity is transmitted to the clasp 4 and the guide strip 5, the temperatures of the clasp 4 and the guide strip 5 rise together, causing the first curved portion 401 and the second curved portion 402 to bend, thereby causing the clasp 4 to hold the abutment teeth tightly, thus completing the installation of the removable denture.

[0028] When removing the removable denture, the patient first rinses his mouth several times with water below 20°C so that the temperature in the water is transferred to the clasp 4 and the guide strip 5, thereby increasing the width of the clasp 4 and losing contact with the abutment tooth. At this time, the patient manually removes the removable denture from the mouth.

[0029] Example 2

[0030] This embodiment reduces the pressure of the denture on the underlying gums and alveolar bone based on the first embodiment.

[0031] Existing removable dentures are supported on the occlusal surface of the abutment teeth through backrests to disperse the pressure of the removable denture on the gums and alveolar bone, thereby alleviating denture sinking. However, when installing removable dentures, in order to maintain the comfort of the patient's tooth occlusion, it is usually necessary to pre-grind a groove at the contact position between the abutment teeth and the backrest to accommodate the backrest, but this method will cause damage to the abutment teeth.

[0032] See also Figure 2 、 Figure 3 、 Figure 5 and Figure 6 An elastic sleeve 6 is fixedly connected to the circumferential side of the lower part of the crown 3. The circumferential side of the crown 3 can be divided into four sides: front, back, left and right. Two symmetrically distributed extrusion grooves 601 and two symmetrically distributed storage grooves 602 are provided on the circumferential side of the crown 3. The two extrusion grooves 601 and the two storage grooves 602 are staggered and respectively located on the four sides of the crown 3. The extrusion grooves 601 and the storage grooves 602 are filled with liquid, which is used to transmit pressure. Glycerin is used here; the glycerin in the extrusion groove 601 is used to squeeze the elastic sleeve 6 to bulge outward and squeeze the abutment tooth. A power component for providing power for the deformation of the elastic sleeve 6 is provided on the crown 3.

[0033] See also Figure 5 and Figure 6The power assembly includes: a tooth base 7, an elastic ring 8, an extrusion column 9, an elastic member 10 and two one-way pull balls 11. The support member 1 and the inner skeleton 2 are both fixed to the tooth base 7. The elastic ring 8 is located between the tooth base 7 and the crown 3 and is fixed to the two. The elastic ring 8 is made of elastic silicone. The elastic ring 8, the crown 3 and the elastic sleeve 6 together constitute a denture with a smooth surface; the extrusion column 9 is fixed to the tooth base 7, and a sealing ring is fixed to the upper part of the extrusion column 9. A power groove 901 for the sealed sliding of the extrusion column 9 is provided in the crown 3. The elastic member 10 is fixed to the upper side of the power groove 901. The two one-way pull balls 11 are both fixed to the elastic member 10. Two first flow channels 101 and two second flow channels connected to the power groove 901 are provided in the crown 3. 111. Glycerin is injected into the power tank 901, the first flow channel 101 and the second flow channel 111. The first flow channel 101 and the second flow channel 111 are respectively connected to the adjacent storage tank 602 and the extrusion tank 601. A diameter change portion is provided in the middle of the second flow channel 111. The one-way pull ball 11 is composed of a rubber ball and a rubber pull rope, and the rubber ball of the one-way pull ball 11 is located in the diameter change portion of the second flow channel 111. The rubber ball of the one-way pull ball 11 is stuck in the diameter change portion of the second flow channel 111 under the tensile action of its rubber pull rope, and provides a one-way blockage from the power tank 901 to the extrusion tank 601 for the second flow channel 111; the elastic member 10 is used to provide a one-way blockage from the storage tank 602 to the power tank 901 for the two first flow channels 101.

[0034] The above setting can achieve the goal of relying on the patient's chewing action to promote the expansion of the elastic sleeve 6 to squeeze the abutment teeth, on the one hand, improving the stability of the removable denture between the two abutment teeth and reducing the probability of the removable denture being detached or lifted up. On the other hand, the contact between the elastic sleeve 6 and the abutment teeth generates friction, providing vertical friction for the removable denture, sharing the pressure of the removable denture on the gums, providing protection for the gums, and alleviating the sinking of the denture.

[0035] See also Figure 5 and Figure 6 Two symmetrically distributed reset flow channels 12 are provided in the crown 3 , and the extrusion groove 601 is connected to the adjacent storage groove 602 through the adjacent reset flow channel 12 ; the reset flow channel 12 provides a channel for the glycerin in the extrusion groove 601 to flow back to the storage groove 602 .

[0036] The above arrangement can realize the control of the deformation of the elastic sleeve 6 by the reset flow channel 12, so that the elastic sleeve 6 applies an extrusion force to the abutment teeth only when the patient is eating, thereby increasing the fixing effect of the abutment teeth on the removable denture. On the one hand, it improves the stability of the removable denture when the patient is eating daily, and on the other hand, it reduces the lateral uneven extrusion force exerted by the removable denture on the abutment teeth during daily non-eating periods, thereby reducing the probability of the removable denture causing damage to the abutment teeth.

[0037] After adopting the above-mentioned setting: during the period when the patient is chewing while eating (hereinafter, the crown 3 and internal parts on the right side will be used as an example for explanation), when the food first squeezes the crown 3, the crown 3 moves downward relative to the tooth base 7 and compresses the elastic ring 8 to deform, causing the squeezing column 9 to slide in the power groove 901, squeezing the glycerin stored in the power groove 901 into the second flow channel 111. When the glycerin passes through the second flow channel 111, the glycerin first squeezes the rubber ball of the one-way pull ball 11 to move, and stretches the rubber pull rope of the one-way pull ball 11, so that the one-way pull ball 11 releases the blockage of the second flow channel 111, allowing the glycerin to enter the squeezing groove 601 and squeeze the left and right sides of the elastic sleeve 6 to expand. The right side of the elastic sleeve 6 contacts the abutment tooth and generates friction; until the elastic sleeve 6 can no longer expand in the left and right directions, the crown 3 stops moving downward, and the one-way pull ball 11 re-blocks the second flow channel 111 under the action of elasticity.

[0038] When the crown 3 loses the pressure of food, the crown 3 moves up and resets under the elastic action of the elastic ring 8. When the crown 3 moves up, the volume of glycerin that can be accommodated in the power groove 901 increases and the glycerin in the storage groove 602 is extracted through the first flow channel 101. In the process of glycerin flowing out of the first flow channel 101, the glycerin squeezes the elastic member 10 and deforms the elastic member 10, so that the elastic member 10 releases the blockage of the first flow channel 101. As the volume of glycerin in the storage groove 602 gradually decreases, the position of the elastic sleeve 6 in the front-to-back direction is concave inward until the crown 3 is reset, the elastic sleeve 6 stops deforming, and the elastic member 10 recovers its shape under its own elastic action and re-blocks the first flow channel 101.

[0039] After the glycerin enters the extrusion groove 601 and expands the elastic sleeve 6 in the left and right directions, the glycerin in the extrusion groove 601 slowly flows into the storage groove 602 through the reset flow channel 12. In this way, when the crown 3 is again subjected to downward extrusion pressure by food, only a small amount of glycerin in the power groove 901 enters the extrusion groove 601 through the second flow channel 111, so that the downward movement distance of the crown 3 is negligible; and after the patient stops eating, the crown 3 is no longer subjected to extrusion pressure for a long time, so that all the excess glycerin in the extrusion groove 601 enters the storage groove 602 through the reset flow channel 12. At this point, the shape of the elastic sleeve 6 is restored and the extrusion pressure on the abutment is lost. In this way, the fixing effect of the abutment on the removable denture is increased only during chewing, which, on the one hand, improves the stability of the removable denture during daily eating, and on the other hand, reduces the lateral uneven extrusion pressure exerted by the removable denture on the abutment, thereby reducing the probability of the removable denture causing damage to the abutment.

[0040] Example 3

[0041] This embodiment is further optimized based on embodiment 2.

[0042] See also Figure 3 and Figure 5The two elastic sleeves 6 located at the sidemost side of the support member 1 are both fixed with titanium sheets 13 on their opposite sides, and the titanium sheets 13 are located on the upper parts of the adjacent elastic sleeves 6 .

[0043] The above setting can be achieved by relying on the contact between the titanium sheet 13 and the abutment tooth, increasing the friction between the elastic sleeve 6 and the abutment tooth, and further enhancing the fixing effect of the extrusion on the removable denture. By setting the titanium sheet 13 on the upper part of the elastic sleeve 6 and combining the curvature of the deformation position of the elastic sleeve 6, it is beneficial for the titanium sheet 13 to fit more closely to the side of the abutment tooth, thereby ensuring the effective contact area between the titanium sheet 13 and the abutment tooth.

[0044] Example 4

[0045] This embodiment provides the function of convenient cleaning of removable dentures based on the third embodiment.

[0046] See also Figure 1 , there is a gap between two adjacent crowns 3.

[0047] The above arrangement can achieve the goal of filling the gap between two adjacent crowns 3 through the deformation of the elastic sleeve 6 during the patient's meal, reducing the probability of debris getting stuck in the gaps between the movable dentures, and after the patient finishes eating, the elastic sleeve 6 is restored, so that the gaps between the movable dentures reappear, making it easier to clean the debris in the gaps between the movable dentures.

[0048] Example 5

[0049] This embodiment provides a function of enhancing the fit between the support member 1 and the gums on the basis of the fourth embodiment.

[0050] See also Figure 3 The inner side of the support member 1 is made of silicone; the soft and deformable properties of silicone are utilized to enable the support member 1 to fully fit the gums, thereby enhancing the adsorption effect between the gums and the support member 1, and thereby enhancing the stability of the removable denture.

[0051] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A convenient and detachable removable denture, characterized in that: include: A support member (1), wherein an inner frame (2) is fixedly connected to the support member (1), and the support member (1) and the inner frame (2) are jointly provided with a plurality of tooth crowns (3) distributed at equal intervals, and a clasp (4) is fixedly connected to both sides of the inner frame (2), and two symmetrically distributed guide strips (5) are fixedly connected to the inner side of the clasp (4), and the clasp (4) and the guide strip (5) are both made of metal, and the thermal expansion coefficient of the clasp (4) is greater than the thermal expansion coefficient of the guide strip (5).

2. The convenient detachable removable denture according to claim 1, characterized in that: The position of the clamping ring (4) close to the inner frame (2) is provided with two symmetrically distributed first curved portions (401), and the position of the clamping ring (4) away from the inner frame (2) is provided with two symmetrically distributed second curved portions (402).

3. The convenient detachable removable denture according to claim 1, characterized in that: An elastic sleeve (6) is fixedly connected to the peripheral side of the crown (3), and two symmetrically distributed extrusion grooves (601) and two symmetrically distributed storage grooves (602) are provided on the peripheral side of the crown (3). The two extrusion grooves (601) and the two storage grooves (602) are staggered. The extrusion grooves (601) and the storage grooves (602) are both filled with liquid. The liquid in the extrusion grooves (601) is used to squeeze the elastic sleeve (6) to bulge outward and squeeze the abutment tooth. A power component for providing power for the deformation of the elastic sleeve (6) is provided on the crown (3).

4. The convenient detachable removable denture according to claim 3, characterized in that: The power assembly includes: A tooth base (7), an elastic ring (8), an extrusion column (9), an elastic member (10) and two one-way pull balls (11), wherein the support member (1) and the inner skeleton (2) are both fixedly connected to the tooth base (7), the elastic ring (8) is located between the tooth base (7) and the tooth crown (3) and is fixedly connected to the two, the extrusion column (9) is fixedly connected to the tooth base (7), a power groove (901) is provided in the tooth crown (3), the extrusion column (9) is sealed and slidable in the power groove (901), the elastic member (10) is fixedly connected in the power groove (901), the two one-way pull balls (11) are both fixedly connected to the elastic member (10), and the tooth base (7) is fixedly connected to the tooth crown (3). The crown (3) is provided with two first flow channels (101) and two second flow channels (111) connected to the power groove (901), and the power groove (901), the first flow channel (101) and the second flow channel (111) are all filled with liquid. The first flow channel (101) and the second flow channel (111) are respectively connected to the adjacent storage groove (602) and the extrusion groove (601). The elastic member (10) is used to provide one-way blocking for the two first flow channels (101). The one-way pull ball (11) is located in the adjacent second flow channel (111) and provides one-way blocking for the second flow channel (111).

5. The conveniently detachable removable denture according to claim 4, characterized in that: The liquids in the extrusion tank (601), the storage tank (602), the power tank (901), the first flow channel (101) and the second flow channel (111) are all glycerol.

6. The convenient detachable removable denture according to claim 4, characterized in that: Two symmetrically distributed resetting flow channels (12) are provided in the tooth crown (3), and the extrusion groove (601) is connected to the adjacent storage groove (602) through the adjacent resetting flow channels (12).

7. The conveniently detachable removable denture according to claim 4, characterized in that: Titanium sheets (13) are fixedly connected to the opposite sides of the two elastic sleeves (6) located at the most side edges of the support member (1).

8. The conveniently detachable removable denture according to claim 7, characterized in that: The titanium sheet (13) is located adjacent to the elastic sleeve (6) and away from the inner skeleton (2).

9. The conveniently detachable removable denture according to claim 6, characterized in that: There is a gap between two adjacent tooth crowns (3).

10. The conveniently detachable removable denture according to claim 7, characterized in that: The inner side of the support member (1) is made of silicone material.

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