Mouth porcelain veneer dismantling device

Abstract

The invention relates to an oral cavity porcelain veneer dismantling device applied to the field of medical instruments, the oral cavity porcelain veneer dismantling device comprises teeth, a veneer and a decomposer, the teeth and the veneer are bonded through a bonding layer, the oral cavity porcelain veneer dismantling device can directly discharge heat generated during decomposition of the bonding layer, and compared with a traditional surface cooling mode, the oral cavity porcelain veneer dismantling device has the advantages that the heat dissipation effect is more direct, the speed is high, and the service life is long. The laser head can well protect teeth, meanwhile, the laser head softens the bonding layer mainly through the photothermal effect, after the cavity is formed, the energy transmission path is shortened, if air flows in the cavity, heat accumulation can be reduced, the stripping efficiency is improved, the decomposition state of the bonding layer can be monitored through the arrangement of a decomposition sensing module and other devices, and the stripping quality is improved. The situation that the laser head excessively decomposes the bonding layer at the same position or does not decompose the bonding layer in place is prevented, through the arrangement of the terminal module and the like, workers can observe the decomposition state of the bonding layer more visually, and the dismantling effect is improved.

Description

Technical Field

[0001] The present invention relates to a demolition device, in particular to an oral porcelain veneer demolition device applied to the field of medical devices. Background Art

[0002] When using erbium laser to remove dental porcelain veneers, the erbium laser with a wavelength of 2940 nm precisely acts on the adhesive between the veneer and the tooth. Through the photothermal effect and photo-mechanical effect, the adhesive layer is decomposed or peeled off, thereby removing the veneer. Compared with traditional mechanical grinding, erbium laser can reduce the damage to dental enamel, improve the operation accuracy, and reduce the discomfort of patients. During the use process, the energy density needs to be controlled to avoid overheating and affecting dentin.

[0003] Chinese Patent with publication number CN109498200B discloses a protective sleeve assembly for laser removal of dental restorations. The gingival protective sleeve and the tooth surface outer sleeve can respectively protect the gingiva and other teeth around the affected tooth.

[0004] When using the laser head to remove the veneer, in order to avoid irreversible thermal damage to the dentin, it is necessary to dissipate heat from the veneer. Traditional heat dissipation methods include installing a water mist nozzle on the laser head for heat dissipation. The water mist nozzle can only act on the surface of the veneer, while the heating position is located in the adhesive layer between the dentin and the veneer, resulting in low heat dissipation efficiency of the water mist nozzle and unable to protect the dentin well. Summary of the Invention

[0005] Aiming at the above-mentioned prior art, the technical problem to be solved by the present invention is that the water mist nozzle can only act on the surface of the veneer, while the heating position is located in the adhesive layer between the dentin and the veneer, resulting in low heat dissipation efficiency of the water mist nozzle.

[0006] To solve the above problems, the present invention provides an oral porcelain veneer demolition device, including a tooth, a veneer, and a decomposer. The tooth and the veneer are bonded through an adhesive layer. One end of the decomposer is fixedly connected with a laser head. The device further includes a hollow plug. The outer wall of the hollow plug is fixedly connected with a sealing layer. The inner wall of the middle part of the hollow plug is fixedly connected with a partition plate. The upper side of the partition plate is set as a front chamber, and one end of the front chamber is fixedly connected with an air inlet pipe. The lower side of the partition plate is set as a rear chamber, and one end of the rear chamber is fixedly connected with an air outlet pipe. Air holes are opened on one side of the front chamber and the rear chamber, and the air holes penetrate through the sealing layer. The device further includes a bracket. One end of the bracket is threadedly connected with a knob. One end of the knob is rotatably connected with a turntable. One end of the turntable is fixedly connected with a pull rope. One end of the pull rope is fixedly connected with one end of the hollow plug.

[0007] Through the above settings, the heat generated during the decomposition of the adhesive layer can be directly discharged. Compared with the traditional surface cooling method, the heat dissipation effect is more direct and faster, and it can well protect the tooth.

[0008] As a further improvement of the present application, it further includes a decomposition induction module. The decomposition induction module is used to obtain the decomposition state of the adhesive layer. The decomposition induction module includes a cylinder. The top end of the cylinder is fixedly connected with a driver. The output end of the driver is fixedly connected with a piston. The piston is hermetically and slidably connected with the inner wall of the cylinder.

[0009] As a further improvement of the present application, the bottom end of the cylinder is fixedly connected with a suction pipe and a discharge pipe. One-way valves are respectively installed on the outer walls of the suction pipe and the discharge pipe. A pressure sensor is fixedly connected to the inner wall of the cylinder. The discharge pipe is communicated with the air inlet pipe.

[0010] As a further improvement of the present application, the decomposition induction module further includes an electromagnetic valve fixedly connected to one end of the air outlet pipe.

[0011] As another improvement of the present application, a middle hole is opened in the middle of the partition board. The top end of the partition board is slidably connected with an adjusting plate. One end of the adjusting plate extends to the outside of the hollow plug.

[0012] As a supplementary improvement of the present application, it further includes a positioning module. The positioning module is used to obtain the position information of the veneer laser head.

[0013] As a supplementary improvement of the present application, it further includes a simulation working module. The simulation working module can simulate the working state and working range of the laser head.

[0014] As another improvement of the present application, it further includes a terminal module. The terminal module is used to display the virtual space module and the simulation working module.

[0015] In summary, the present invention can directly discharge the heat generated during the decomposition of the adhesive layer. Compared with the traditional surface cooling method, the heat dissipation effect is more direct and faster, and it can play a good role in protecting teeth. At the same time, the laser head mainly softens the adhesive layer through the photothermal effect. After the cavity is formed, the energy propagation path becomes shorter. If there is air flow inside, heat accumulation can be reduced and the peeling efficiency can be improved;

[0016] Moreover, through the setting of devices such as the decomposition induction module, the decomposition state of the adhesive layer can be monitored to prevent the situation that the laser head over-decomposes or under-decomposes the adhesive layer at the same position. Also, through the setting of the terminal module and other devices, the staff can more intuitively observe the decomposition state of the adhesive layer and improve the removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view sectional view of the bracket in the first embodiment of the present application;

[0018] Figure 2 It is a front view of the decomposer in the first and second embodiments of the present application;

[0019] Figure 3 It is a three-dimensional view of the connection structure between the bracket and the veneer in the first embodiment of the present application;

[0020] Figure 4 It is a top-down sectional view at the hollow plug in the first and second embodiments of the present application;

[0021] Figure 5 It is a front view at the bonding layer in the first and second embodiments of the present application;

[0022] Figure 6 It is a partition diagram of the bonding layer in the first and second embodiments of the present application;

[0023] Figure 7 It is a side sectional view at the hollow plug in the first and second embodiments of the present application;

[0024] Figure 8 It is a side sectional view at the decomposition induction module in the second embodiment of the present application.

[0025] Explanation of the reference numerals in the figure:

[0026] 1. Tooth; 2. Veneer; 3. Bonding layer; 4. Decomposer; 5. Laser head; 6. Hollow plug; 7. Sealing layer; 8. Partition board; 9. Air hole; 10. Air inlet pipe; 11. Air outlet pipe; 12. Partition board; 13. Pull rope; 14. Knob; 1401. Turntable; 15. Bracket; 16. Cylinder; 1601. Driver; 1602. Piston; 1603. Suction pipe; 1604. Drain pipe; 1605. Upper one-way valve; 1606. Lower one-way valve; 1607. Pressure sensor; 1608. Electric control valve; 17. Middle hole; 18. Front chamber; 19. Rear chamber; Specific embodiments

[0027] The following will describe the two embodiments of the present application in detail with reference to the accompanying drawings.

[0028] The first embodiment:

[0029] Figures 1-7Disclosed is an oral porcelain veneer removal device, including a tooth 1, a veneer 2 and a decomposer 4. The tooth 1 and the veneer 2 are bonded through an adhesive layer 3. One end of the decomposer 4 is fixedly connected with a laser head 5. It further includes a hollow plug 6. The outer wall of the hollow plug 6 is fixedly connected with a sealing layer 7. The inner wall of the middle part of the hollow plug 6 is fixedly connected with a partition 8. The upper side of the partition 8 is a front chamber 18, and one end of the front chamber 18 is fixedly connected with an air inlet pipe 10. The lower side of the partition 8 is a rear chamber 19, and one end of the rear chamber 19 is fixedly connected with an air outlet pipe 11. Air holes 9 are provided on one side of both the front chamber 18 and the rear chamber 19. The air holes 9 penetrate through the sealing layer 7. It further includes a bracket 15. One end of the bracket 15 is threadedly connected with a knob 14. One end of the knob 14 is rotatably connected with a turntable 1401. One end of the turntable 1401 is fixedly connected with a pull rope 13. One end of the pull rope 13 is fixedly connected with one end of the hollow plug 6.

[0030] Before removing the veneer 2, move the bracket 15 to one side of the veneer 2, then insert the hollow plug 6 between two adjacent teeth 1, and the air hole 9 is located at the included angle between the tooth 1 and the veneer 2. The air hole 9 is on one side of the adhesive layer 3, and the edge area of the adhesive layer 3 close to the air hole 9 is set as area A, the edge area of the adhesive layer 3 far from the air hole 9 is set as area B, and the area between area A and area B is set as area C. Then rotate the knob 14 to tighten the hollow plug 6 through the pull rope 13 so that the hollow plug 6 is closely attached to the tooth 1 and the veneer 2.

[0031] When removing the veneer 2, hold the laser head 5 against area A. At this time, the adhesive layer 3 in area A decomposes to form a cavity. Then blow air into the inside of the hollow plug 6 through the air inlet pipe 10. The air inside the hollow plug 6 enters the inside of the cavity through the air hole 9 and is discharged out through the air outlet pipe 11.

[0032] Through the above settings, the heat generated during the decomposition of the adhesive layer 3 can be directly discharged. Compared with the traditional surface cooling method, the heat dissipation effect is more direct and faster, and it can well protect the tooth 1.

[0033] At the same time, the laser head 5 mainly softens the adhesive layer 3 through the photothermal effect. After the cavity is formed, the energy propagation path becomes shorter. If there is air flow inside, the heat accumulation can be reduced and the peeling efficiency can be improved.

[0034] The second embodiment:

[0035] Figure 2 and 4-8 shows an oral porcelain veneer removal device. Different from the first embodiment, it further includes a decomposition induction module. The decomposition induction module is used to obtain the decomposition state of the bonding layer 3. The decomposition induction module includes a cylinder 16. The top end of the cylinder 16 is fixedly connected with a driver 1601. The output end of the driver 1601 is fixedly connected with a piston 1602. The piston 1602 is in sealed sliding connection with the inner wall of the cylinder 16. The bottom end of the cylinder 16 is fixedly connected with a suction pipe 1603 and a discharge pipe 1604. One-way valves 1605 and 1606 are respectively installed on the outer walls of the suction pipe 1603 and the discharge pipe 1604. A pressure sensor 1607 is fixedly connected to the inner wall of the cylinder 16. The discharge pipe 1604 is communicated with the air inlet pipe 10. The decomposition induction module further includes an electromagnetic valve 1608 fixedly connected to one end of the air outlet pipe 11.

[0036] When the decomposition induction module works, start the driver 1601 to drive the piston 1602 to move up and down reciprocally. When the piston 1602 moves upward, the one-way valve 1605 opens and the one-way valve 1606 closes. Air enters the inside of the cylinder 16 through the suction pipe 1603. When the piston 1602 moves downward, the one-way valve 1606 opens and the air inside the cylinder 16 enters the inside of the hollow plug 6.

[0037] While the piston 1602 moves upward, the electromagnetic valve 1608 opens. At this time, the air inside the hollow plug 6 is discharged outward through the air outlet pipe 11. While the piston 1602 moves downward, the electromagnetic valve 1608 closes. At this time, the air entering the inside of the hollow plug 6 remains inside the hollow plug 6.

[0038] Since the amount of air injected into the inside of the hollow plug 6 by the cylinder 16 is the same each time, after the bonding layer 3 decomposes to form a cavity communicating with the front chamber 18, the air pressure inside the cylinder 16 will become lower, and the pressure sensor 1607 can detect the pressure change inside the cylinder 16, so as to judge the decomposition state of the bonding layer 3.

[0039] When the laser head 5 acts on the bonding layer 3, the bonding layer 3 decomposes gradually. Therefore, when the air is inflated into the inside of the hollow plug 6 multiple times, when the pressure received by the pressure sensor 1607 gradually becomes smaller and finally remains unchanged, it means that the bonding layer 3 at the current position has been decomposed completely, and the laser head 5 can be moved to decompose the bonding layer 3 at the next position.

[0040] Through the above settings, the decomposition state of the bonding layer 3 can be monitored to prevent the situation that the laser head 5 over-decomposes or under-decomposes the bonding layer 3 at the same position.

[0041] When decomposing the adhesive layer 3, first decompose along the A area, then decompose the C area, and finally decompose the B area. When decomposing the C area, the B area and the hollow plug 6 can play a role in sealing the C area. In this state, the decomposition state of the adhesive layer 3 can be judged by the data of the air pressure sensor 1607. When finally decomposing the B area, the front chamber 18 is connected to the outside, and the decomposition state of the adhesive layer 3 cannot be judged by the data of the air pressure sensor 1607. However, when decomposing the C area, the average decomposition duration of the adhesive layer 3 at each position can be calculated, and the B area can be decomposed with the obtained average decomposition duration, so that the B area can also obtain a better decomposition effect.

[0042] An intermediate hole 17 is formed in the middle of the partition plate 8. One end of the adjusting plate 12 is slidably connected to the top of the partition plate 8, and the other end of the adjusting plate 12 extends to the outside of the hollow plug 6. The A area on one side of the front chamber 18 is set as the A1 area, and the A area on one side of the rear chamber 19 is set as the A2 area.

[0043] With the above settings, when initially decomposing the adhesive layer 3, the laser head 5 decomposes the adhesive layer 3 in the A1 area. After forming a cavity, the cavity may not cover the two air holes 9. At this time, the air entering the inside of the front chamber 18 cannot be discharged to the inside of the rear chamber 19 and then discharged to the outside through the cavity. In this case, when the sliding adjusting plate 12 is separated from the intermediate hole 17, the air inside the front chamber 18 can be prevented from being discharged to the outside through the rear chamber 19.

[0044] After the decomposition of the adhesive layer 3 in the A1 area is completed, the adhesive layer 3 in the A2 area is immediately decomposed. At this time, the formed cavity can connect the two air holes 9. In this case, by moving the adjusting plate 12 to block the intermediate hole 17, the air inside the front chamber 18 can enter the inside of the rear chamber 19 through the cavity and be discharged to the outside, which can better take away the heat inside the cavity.

[0045] It further includes a positioning module for obtaining the position information of the laser head 5 on the veneer 2, a virtual space module for establishing models of the veneer 2 and the laser head 5 based on the positioning module. The virtual space module can establish the A area, B area, and C area on the model of the veneer 2. It also includes an imitation working module that can simulate the working state and working range of the laser head 5 and automatically eliminate the corresponding A area, B area, and C area in combination with the decomposition induction module. It further includes a terminal module for displaying the virtual space module and the imitation working module, enabling the staff to more intuitively observe the decomposition state of the adhesive layer 3 and improving the removal effect.

[0046] Combined with the current actual requirements, the above implementation manner adopted in this application, the protection scope is not limited to this. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. An oral porcelain veneer removal device, comprising a tooth (1), a veneer (2) and a decomposer (4), wherein the tooth (1) and the veneer (2) are bonded together by an adhesive layer (3), and one end of the decomposer (4) is fixedly connected to a laser head (5), characterized in that: It also comprises a hollow block (6), the outer wall of the hollow block (6) being fixedly connected to a sealing layer (7), the inner wall of the middle part of the hollow block (6) being fixedly connected to a partition (8), the upper side of the partition (8) being arranged as a front chamber (18) and one end of the front chamber (18) being fixedly connected to an air inlet pipe (10), the lower side of the partition (8) being arranged as a rear chamber (19) and one end of the rear chamber (19) being fixedly connected to an air outlet pipe (11), the front chamber ( One side of the front chamber (18) and the rear chamber (19) is provided with an air hole (9), the air hole (9) penetrates the sealing layer (7), and also includes a bracket (15), one end of the bracket (15) is threadedly connected to a knob (14), one end of the knob (14) is rotatably connected to a turntable (1401), one end of the turntable (1401) is fixedly connected to a pull rope (13), and one end of the pull rope (13) is fixedly connected to one end of the hollow block (6).

2. The oral porcelain veneer removal device according to claim 1, characterized in that: It also includes a decomposition sensing module, which is used to obtain the decomposition state of the adhesive layer (3), and the decomposition sensing module includes a cylinder (16), the top end of the cylinder (16) is fixedly connected to a driver (1601), the output end of the driver (1601) is fixedly connected to a piston (1602), and the piston (1602) is sealed and slidably connected to the inner wall of the cylinder (16).

3. The oral porcelain veneer removal device according to claim 2, characterized in that: The bottom end of the cylinder (16) is fixedly connected to a suction pipe (1603) and a discharge pipe (1604); the outer walls of the suction pipe (1603) and the discharge pipe (1604) are respectively installed with an upper one-way valve (1605) and a lower one-way valve (1606); the inner wall of the cylinder (16) is fixedly connected to an air pressure sensor (1607); and the discharge pipe (1604) is connected to the air inlet pipe (10).

4. The oral porcelain veneer removal device according to claim 1, characterized in that: The decomposition sensing module also includes an electric control valve (1608) fixedly connected to one end of the air outlet pipe (11).

5. The oral porcelain veneer removal device according to claim 1, characterized in that: A middle hole (17) is provided in the middle of the partition (8), and an adjustment plate (12) is slidably connected to the top end of the partition (8), and one end of the adjustment plate (12) extends to the outside of the hollow block (6).

6. The oral porcelain veneer removal device according to claim 1, characterized in that: It also comprises a positioning module, and the positioning module is used to obtain the position information of the veneer (2) laser head (5).

7. The oral porcelain veneer removal device according to claim 6, characterized in that: It also includes a virtual space module, which establishes models of the veneer (2) and the laser head (5) based on the positioning module.

8. The oral porcelain veneer removal device according to claim 7, characterized in that: It also includes a simulated working module, which can simulate the working state and working range of the laser head (5).

9. The oral porcelain veneer removal device according to claim 8, characterized in that: It also includes a terminal module, which is used to display the virtual space module and the simulated work module.

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