Conveniently dismountable removable denture

Abstract

The present application relates to the technical field of denture, especially to a convenient detachable removable denture. It comprises a support, the support is fixedly connected with an inner framework, the support and the inner framework are provided with a plurality of crowns which are equidistantly distributed, the two sides of the inner framework are fixedly connected with clamping rings, the inner side of the clamping ring is fixedly connected with two guide strips which are symmetrically distributed, the clamping ring and the guide strip are both metal materials, and the thermal expansion coefficient of the clamping ring is greater than that of the guide strip. The present application utilizes the characteristics of the bending deformation of the clamping ring and the guide strip according to the temperature, so that the width of the clamping ring at normal temperature is greater than that of the abutment tooth. After the removable denture is placed in the patient's oral cavity, the temperature in the oral cavity promotes the bending deformation of the clamping ring and the guide strip, so as to "hold tightly" the abutment tooth, realize the fixation of the removable denture, utilize the temperature to control the fixation effect of the clamping ring and the guide strip on the abutment tooth, so as to facilitate the wearing and taking off of the removable denture.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dentures, in particular to a convenient detachable removable denture. BACKGROUND

[0002] The professional name of removable denture is removable partial denture, which mainly includes removable partial denture and complete denture. The repair principle is to use the remaining natural teeth, the mucosa of the base covering area and the underlying alveolar bone tissue as the support basis, and to realize the retention through the clasp (retainer) and the base of the denture. The core function of removable denture is to restore the shape and chewing function of missing teeth with artificial teeth, and it can be taken off and worn by the patient.

[0003] The clasp is usually fixed around the healthy teeth (called abutment teeth) adjacent to the edentulous area, which is the main way for removable denture to obtain retention. However, in order to ensure the stability of the denture during use (such as chewing, speaking), and to minimize the risk of lifting or accidental falling, the clasp is usually designed to be elastic. This elasticity allows the clasp to closely fit the abutment tooth, providing reliable retention. However, correspondingly, the tighter the fit between the clasp and the abutment tooth, the more inconvenient it is for the patient to take off and wear the denture. SUMMARY

[0004] The present application provides a convenient detachable removable denture to overcome the shortcomings of the existing removable denture that is not convenient to take off and wear.

[0005] The technical scheme of the present application is as follows: a convenient detachable removable denture, comprising: a support, an inner framework is fixedly connected in the support, the support and the inner framework are provided with a plurality of tooth crowns which are equidistantly distributed, two clamps are fixedly connected on both sides of the inner framework, two guide strips are fixedly connected on the inner side of the clamps, the clamps and the guide strips are made of metal material, and the thermal expansion coefficient of the clamps is greater than that of the guide strips.

[0006] Further, two first bending parts are symmetrically arranged at the position close to the inner framework of the clamps, and two second bending parts are symmetrically arranged at the position away from the inner framework of the clamps.

[0007] Further, an elastic sleeve is fixedly connected to the circumferential side of the tooth crown, two extrusion grooves and two storage grooves are symmetrically arranged on the circumferential side of the tooth crown, the two extrusion grooves and the two storage grooves are staggered, liquid is injected into the extrusion grooves and the storage grooves, the liquid in the extrusion grooves is used to extrude the elastic sleeve to protrude outward and extrude the abutment tooth, and a power assembly is arranged on the tooth crown to provide power for the deformation of the elastic sleeve.

[0008] Further, the power assembly comprises a tooth base, an elastic ring, a pressing column, an elastic piece and two one-way pull balls, the support and the inner framework are fixedly connected with the tooth base, the elastic ring is located between and fixedly connected with the tooth base and the tooth crown, the pressing column is fixedly connected with the tooth base, the tooth crown is provided with a power groove, the pressing column sealingly slides in the power groove, the elastic piece is fixedly connected in the power groove, the two one-way pull balls are fixedly connected with the elastic piece, the tooth crown is provided with two first flow channels and two second flow channels which are in communication with the power groove, the power groove, the first flow channels and the second flow channels are filled with liquid, the first flow channels and the second flow channels are in communication with the adjacent storage grooves and pressing grooves respectively, the elastic piece is used for providing one-way plugging for the two first flow channels, the one-way pull balls are located in the adjacent second flow channels and provide one-way plugging for the second flow channels.

[0009] Further, the liquid in the pressing groove, the storage groove, the power groove, the first flow channels and the second flow channels is glycerol.

[0010] Further, the tooth crown is provided with two reset flow channels which are symmetrically distributed, and the pressing groove is in communication with the adjacent storage groove through the adjacent reset flow channel.

[0011] Further, the opposite sides of the two elastic sleeves located at the most side edges of the support are fixedly connected with titanium sheets.

[0012] Further, the titanium sheets are located at positions of the adjacent elastic sleeves which are away from the inner framework.

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

[0014] Further, the inner side of the support is made of silica gel.

[0015] Compared with the prior art, the application has the advantages and positive effects that: the clasp ring and the guide strip are bent and deformed according to the temperature, so that the width of the clasp ring is greater than the width of the abutment tooth at normal temperature, and when the removable denture is placed in the patient's mouth, the temperature in the mouth promotes the bending and deformation of the clasp ring and the guide strip, so as to "hold tightly" the abutment tooth, realize the fixation of the removable denture, and control the fixation effect of the clasp ring and the guide strip on the abutment tooth by the temperature, so as to facilitate the wearing and taking off of the removable denture.

[0016] By the action of the patient's eating and chewing, the elastic sleeve is expanded to press the abutment tooth, on the one hand, the stability of the removable denture between the two abutment teeth is improved, and the probability of the removable denture being separated and lifted is reduced, on the other hand, the friction force generated by the contact between the elastic sleeve and the abutment tooth provides vertical friction force for the removable denture, shares the pressure of the removable denture acting on the gum, and protects the gum.

[0017] The reset flow channel controls the deformation of the elastic sleeve, so that the elastic sleeve only exerts extrusion force on the abutment during the patient's eating, increases the fixing effect of the abutment on the removable denture, on the one hand, improves the stability of the removable denture when the patient eats daily, on the other hand, reduces the lateral uneven extrusion force of the removable denture on the abutment during the daily non-eating period, and reduces the probability of damage to the abutment by the removable denture.

[0018] Through the deformation of the elastic sleeve during the patient's eating, the gap between the two adjacent crowns is filled, the probability of foreign matter being stuck in the gap of the removable denture is reduced, and after the patient finishes eating, the elastic sleeve restores, so that the gap of the removable denture reappears, facilitating the cleaning of the foreign matter in the gap of the removable denture. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the inner skeleton and the crown of the present application;

[0021] Figure 3 It is an exploded view of the inner skeleton, crown and elastic sleeve of the present application;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the clasp and the guide strip of the present application;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the extrusion column and the elastic member of the present application;

[0024] 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 application.

[0025] In the above drawings: 1 - support, 2 - inner skeleton, 3 - crown, 4 - clasp, 401 - first bending part, 402 - second bending part, 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

[0026] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the structure indicated in the specification and drawings.

[0027] Example 1

[0028] The embodiment provides a convenient detachable removable denture to solve the problem that the existing removable denture fixed by relying on the elasticity of a clasp is inconvenient to take off and put on, and is convenient for use of a patient.

[0029] Referring to Figures 1 to 4 A convenient detachable removable denture comprises a support 1, the support 1 is a simulated gingiva, an inner framework 2 is fixedly connected in the support 1, the inner framework 2 is made of titanium metal, and the support 1 and the inner framework 2 are provided with two tooth crowns 3, the number of the tooth crowns 3 is determined according to the actual missing teeth of a patient; clamps 4 are fixedly connected to the left and right sides of the inner framework 2, the clamps 4 are used for clamping the lower parts of abutments (the abutments are teeth of the patient himself and can provide support for the removable denture), and the clamps 4 limit the denture by using the anatomical feature that the abutments are wide at the top and narrow at the bottom; two guide strips 5 symmetrically distributed are fixedly connected to the inner sides of the clamps 4, the clamps 4 and the guide strips 5 are made of metal, the thermal expansion coefficient of the clamps 4 is greater than that of the guide strips 5, the clamps 4 and the guide strips 5 jointly form a bimetallic structure, can bend when heated, and the materials of the clamps 4 and the guide strips 5 are respectively selected from 316L stainless steel and nickel-titanium alloy.

[0030] Referring to Figure 4 This paragraph is described by taking the perspective of the front view as an example. Figure 4 The right part of the clamps 4 is provided with two first bending parts 401 symmetrically distributed, the left part of the clamps 4 is provided with two second bending parts 402 symmetrically distributed, the first bending parts 401 are used for driving the left part of the clamps 4 to swing when heated, the left part of the clamps 4 is inwards retracted, the clamping force of the clamps 4 on the abutments is increased, and the stability of the removable denture is enhanced; the second bending parts 402 can increase the bending amplitude when heated, the clamps 4 are pulled to the left, and the stability of the removable denture is further enhanced.

[0031] The above setting can realize that the clamps 4 are wider than the abutments at room temperature by using the characteristics of bending deformation of the clamps 4 and the guide strips 5 according to the temperature, the clamps 4 and the guide strips 5 are bent and deformed by relying on the temperature in the oral cavity after the removable denture is placed in the oral cavity of the patient, the abutments are “held tightly”, the fixation of the removable denture is realized, the fixation effect of the clamps 4 and the guide strips 5 on the abutments is controlled by using the temperature, and thus the removable denture is convenient to take off and put on.

[0032] Before installing the removable denture, the patient first flushes the clamps 4 with water below 20 DEG C, so that the width of the clamps 4 in the front-rear direction is increased, then the patient installs the removable denture to the toothless position, so that the two clamps 4 are respectively sleeved on the circumferential sides of the left and right abutments, the temperature in the oral cavity is transmitted to the clamps 4 and the guide strips 5, the temperature of the clamps 4 and the guide strips 5 is increased together, the first bending parts 401 and the second bending parts 402 are bent, and then the clamps 4 hold the abutments tightly, so that the installation of the removable denture is completed.

[0033] When the removable denture is disassembled, the patient first uses water below 20℃ to rinse several times, so that the temperature of the water is transmitted to the clasp 4 and the guide bar 5, thereby increasing the width of the clasp 4 and losing contact with the abutment, at which time the patient manually removes the removable denture from the oral cavity.

[0034] Embodiment 2

[0035] This embodiment reduces the function of the denture to reduce the pressure on the underlying gums and alveolar bone.

[0036] The existing removable denture is supported on the occlusal surface of the abutment by the rest to distribute the pressure of the removable denture on the gums and alveolar bone, so as to alleviate the denture sinking, however, in order to maintain the comfort of the patient's teeth occlusion when installing the removable denture, a recess is usually pre-milled on the position where the abutment contacts the rest to accommodate the rest, but this way will cause damage to the abutment.

[0037] Referring to Figure 2 , Figure 3 , Figure 5 and Figure 6 , the lower part of the crown 3 is fixed with a flexible sleeve 6 on the periphery, and the periphery of the crown 3 can be divided into four sides, front, back, left and right, and the periphery of the crown 3 is provided with two symmetrically distributed extrusion grooves 601 and two symmetrically distributed storage grooves 602, the two extrusion grooves 601 and the two storage grooves 602 are staggered and respectively located on the four sides of the crown 3, and the extrusion grooves 601 and the storage grooves 602 are filled with liquid, which is used to transmit pressure, and glycerol is selected here; the glycerol in the extrusion groove 601 is used to extrude the flexible sleeve 6 to protrude outward and extrude the abutment, and the crown 3 is provided with a power assembly for providing power for the deformation of the flexible sleeve 6.

[0038] Referring to Figure 5 and Figure 6The power assembly comprises a tooth base 7, an elastic ring 8, an extrusion column 9, an elastic element 10 and two one-way pull balls 11, the support 1 and the inner framework 2 are fixedly connected with the tooth base 7, the elastic ring 8 is located between the tooth base 7 and the tooth crown 3 and is fixedly connected with the two, the elastic ring 8 is made of elastic silica gel, the elastic ring 8, the tooth crown 3 and the elastic sleeve 6 jointly form a surface-smoothed false tooth; the extrusion column 9 is fixedly connected with the tooth base 7, the upper portion of the extrusion column 9 is fixedly connected with a sealing ring, the tooth crown 3 is provided with a power groove 901 for sealing sliding of the extrusion column 9, the elastic element 10 is fixedly connected to the upper side in the power groove 901, the two one-way pull balls 11 are fixedly connected with the elastic element 10, the tooth crown 3 is provided with two first flow channels 101 and two second flow channels 111 which are in communication with the power groove 901, glycerin is injected into the power groove 901, the first flow channels 101 and the second flow channels 111, the first flow channels 101 and the second flow channels 111 are respectively in communication with the adjacent storage grooves 602 and the extrusion grooves 601, the middle portion of the second flow channels 111 is provided with a variable-diameter portion, the one-way pull ball 11 is composed of a rubber ball and a rubber pull rope, the rubber ball of the one-way pull ball 11 is located in the variable-diameter portion of the second flow channels 111, the rubber ball of the one-way pull ball 11 is clamped in the variable-diameter portion of the second flow channels 111 under the stretching action of the rubber pull rope, and the one-way pull ball 11 provides one-way plugging from the power groove 901 to the extrusion groove 601 for the second flow channels 111; the elastic element 10 is used for providing one-way plugging from the storage groove 602 to the power groove 901 for the two first flow channels 101.

[0039] The above arrangement can realize that, by the action of chewing of the patient during eating, the elastic sleeve 6 is expanded to extrude the abutment, on the one hand, the stability of the removable denture between the two abutments is improved, and the probability of the removable denture being separated and lifted is reduced, on the other hand, the friction force is generated by the contact between the elastic sleeve 6 and the abutment, the vertical friction force is provided for the removable denture, the pressure of the removable denture acting on the alveolar ridge is shared, the alveolar ridge is protected, and the sinking of the false tooth is alleviated.

[0040] Referring to Figure 5 and Figure 6 , the tooth crown 3 is provided with two reset flow channels 12 which are symmetrically distributed, the extrusion groove 601 is in communication with 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.

[0041] The above arrangement can realize that, by the action of chewing of the patient during eating, the elastic sleeve 6 is expanded to extrude the abutment, on the one hand, the stability of the removable denture between the two abutments is improved, and the probability of the removable denture being separated and lifted is reduced, on the other hand, the friction force is generated by the contact between the elastic sleeve 6 and the abutment, the vertical friction force is provided for the removable denture, the pressure of the removable denture acting on the alveolar ridge is shared, the alveolar ridge is protected, and the sinking of the false tooth is alleviated.

[0042] With the above settings: during the patient chewing food (later, the right crown 3 and the inner part are taken as an example to illustrate), when the food first extrudes the crown 3, the crown 3 moves downward relative to the abutment 7 and compresses the elastic ring 8 to deform, so that the extrusion column 9 slides in the power groove 901, extruding the glycerol stored in the power groove 901 into the second flow channel 111. When the glycerol passes through the second flow channel 111, the glycerol first extrudes 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 unblocks the second flow channel 111, allowing the glycerol to enter the extrusion groove 601, and extruding the elastic sleeve 6 to expand on both sides. The right side of the elastic sleeve 6 contacts the abutment and generates a friction force; until the elastic sleeve 6 cannot continue to 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 elastic action.

[0043] When the crown 3 loses the extrusion of the food, the crown 3 moves upward and resets under the elastic action of the elastic ring 8. When the crown 3 moves upward, the volume of the power groove 901 that can accommodate glycerol increases and the glycerol stored in the storage groove 602 is pumped out through the first flow channel 101. In the process of glycerol flowing out of the first flow channel 101, the glycerol extrudes the elastic member 10 and deforms the elastic member 10, so that the elastic member 10 unblocks the first flow channel 101. As the volume of the glycerol in the storage groove 602 gradually decreases, the position of the elastic sleeve 6 in the front and back directions is concave inward, until the crown 3 resets, the elastic sleeve 6 stops deforming, and the elastic member 10 restores its shape under the elastic action of itself and re-blocks the first flow channel 101.

[0044] After the glycerol enters the extrusion groove 601 and makes the elastic sleeve 6 expand in the left and right directions, the glycerol in the extrusion groove 601 slowly flows into the storage groove 602 through the reset flow channel 12. Thus, when the crown 3 is again subjected to a downward extrusion force by the food, the distance of the crown 3 moving downward can be ignored due to only a small amount of glycerol in the power groove 901 entering the extrusion groove 601 through the second flow channel 111. After the patient stops eating, the crown 3 is no longer subjected to extrusion force for a long time, so that the excess glycerol 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 force on the abutment is lost. Thus, only during chewing, the fixation effect of the abutment on the removable denture is increased, on the one hand, the stability of the removable denture during daily eating of the patient is improved, and on the other hand, the lateral uneven extrusion force of the removable denture on the abutment is reduced, and the probability of damage to the abutment by the removable denture is reduced.

[0045] Embodiment 3

[0046] This embodiment is further optimized on the basis of embodiment 2.

[0047] Reference Figure 3 and Figure 5The titanium sheet 13 is arranged on the upper part of the elastic sleeve 6.

[0048] The titanium sheet 13 is arranged on the upper part of the elastic sleeve 6.

[0049] Embodiment 4

[0050] The embodiment provides the function of conveniently cleaning the removable denture on the basis of the embodiment 3.

[0051] Referring to Figure 1 There is a gap between the two adjacent crowns 3.

[0052] The above arrangement can realize that the gap between the two adjacent crowns 3 is filled by the deformation of the elastic sleeve 6 during the patient eating, the probability of the sundries being stuck in the gap of the removable denture is reduced, and after the patient finishes eating, the elastic sleeve 6 restores, the gap of the removable denture reappears, and the sundries in the gap of the removable denture can be conveniently cleaned.

[0053] Embodiment 5

[0054] The embodiment provides the function of enhancing the adhesion effect of the support 1 and the gum on the basis of the embodiment 4.

[0055] Referring to Figure 3 The inner side of the support 1 is made of silica gel material; the silica gel is soft and easy to deform, so that the support 1 is fully adhered to the gum, the adsorption effect between the gum and the support 1 is enhanced, and the stability of the removable denture is further enhanced.

[0056] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application is included in the protection scope of the present application.

Claims

1. A removable denture, characterized in that, Include: Support (1), the inner frame (2) is fixedly connected in the support (1), the support (1) and the inner frame (2) are provided with a plurality of crown (3) distributed equidistantly, both sides of the inner frame (2) are fixedly connected with snap ring (4), the inner side of the snap ring (4) is fixedly connected with two guide strips (5) distributed symmetrically, the snap ring (4) and the guide strip (5) are metal material, and the thermal expansion coefficient of the snap ring (4) is greater than the thermal expansion coefficient of the guide strip (5); The periphery of the crown (3) is fixedly connected with an elastic sleeve (6), the periphery of the crown (3) is provided with two extrusion grooves (601) and two storage grooves (602) distributed symmetrically, two extrusion grooves (601) and two storage grooves (602) are staggered, the extrusion groove (601) and the storage groove (602) are filled with liquid, the liquid in the extrusion groove (601) is used for extruding the elastic sleeve (6) to protrude outward and extruding the abutment, the crown (3) is provided with a power assembly for providing power for the deformation of the elastic sleeve (6); The power assembly comprises: The tooth base (7), the elastic ring (8), the extrusion column (9), the elastic element (10) and two one-way pull balls (11), the support (1) and the inner frame (2) are fixedly connected with the tooth base (7), the elastic ring (8) is located between the tooth base (7) and the crown (3) and is fixedly connected with them, the extrusion column (9) is fixedly connected with the tooth base (7), the crown (3) is provided with a power groove (901), the extrusion column (9) is sealed sliding in the power groove (901), the elastic element (10) is fixedly connected in the power groove (901), two one-way pull balls (11) are fixedly connected with the elastic element (10), the crown (3) is provided with two first flow channels (101) and two second flow channels (111) communicating with the power groove (901), the power groove (901), the first flow channel (101) and the second flow channel (111) are filled with liquid, the first flow channel (101) and the second flow channel (111) are respectively communicated with the adjacent storage groove (602) and the extrusion groove (601), the elastic element (10) is used for providing one-way sealing for two first flow channels (101), the one-way pull ball (11) is located in the adjacent second flow channel (111), and provides one-way sealing for the second flow channel (111).

2. The removable denture of claim 1, wherein, The position of the snap ring (4) close to the inner frame (2) is provided with two first bending parts (401) distributed symmetrically, and the position of the snap ring (4) away from the inner frame (2) is provided with two second bending parts (402) distributed symmetrically.

3. The removable denture of claim 1, wherein, The liquid in the extrusion groove (601), the storage groove (602), the power groove (901), the first flow channel (101) and the second flow channel (111) is glycerol.

4. The removable denture of claim 1, wherein, The crown (3) is provided with two symmetrically distributed reset flow channels (12), and the extrusion groove (601) is communicated with the adjacent storage groove (602) through the adjacent reset flow channel (12).

5. The removable denture of claim 1, wherein, The opposite sides of the two elastic sleeves (6) located at the most side edges of the support (1) are fixedly connected with titanium sheets (13).

6. The removable denture of claim 5, wherein, The titanium sheets (13) are located at positions of the adjacent elastic sleeves (6) away from the inner framework (2).

7. The removable denture of claim 4, wherein, There is a gap between the two adjacent crowns (3).

8. The removable denture of claim 5, wherein, The inner side of the support (1) is made of silica gel.

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