Dental caries depth measuring scale

Abstract

The utility model discloses a decayed tooth depth measuring scale which comprises a tooth fixing device, a scale column is assembled at the upper end of the tooth fixing device, a movable positioning sleeve is connected to the scale column in a sliding mode, and a depth detection rod is connected to the movable positioning sleeve in a sliding mode. According to the utility model, the depth from a caries hole to an occlusal surface can be accurately measured, so that the resin filling height is determined, caries hole filling is quickly and accurately completed, long-time occlusal adjustment caused by excessive resin filling is avoided, and the chair-side operation time is shortened. Not only can the problem of joint discomfort caused by long-time mouth opening of a patient be relieved, but also the working efficiency of a doctor can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical appliances, in particular to a dental caries depth measuring ruler. Background Art

[0002] When filling a tooth, it is necessary to know the height of the patient's teeth. At this time, a soft temporary material is used to fill the caries first, and then the patient is asked to close his mouth and bite his teeth. At this time, the occlusal surface of the opposite tooth can be printed on the temporary material. After that, the dentist needs to measure the distance between the highest and lowest points of the occlusal surface of the tooth printed on the soft temporary material, and mark the lowest point height on the inner wall of the caries cavity. Then, the resin is filled into the caries cavity to the mark, and then the position of the lowest horizontal point is determined. With this as the center, the tooth tip is again piled up until the general shape of the occlusal surface is piled up, and finally polished to form a complete occlusal surface shape.

[0003] During the above operation, although the distance between the lowest point and the highest point can be measured using a simple measuring ruler, the horizontal position of the lowest point is difficult to determine accurately. As a result, after the cusp is built up, it is difficult to build up the general shape of the occlusal surface. It is easy to have excessive cusp building, which requires a long time to adjust the occlusion after the cusp is built up. This will not only cause joint damage to the patient, but also waste the doctor's working time. In view of the above problems, a caries depth measuring ruler is proposed. Utility Model Content

[0004] The utility model aims to provide a caries depth measuring ruler to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a caries depth measuring ruler, including a tooth fixture, the upper end of which is equipped with a ruler column, a movable positioning sleeve is slidably connected to the ruler column, and a depth detection rod is slidably connected to the movable positioning sleeve.

[0006] Preferably, the tooth fixer includes a U-shaped elastic splint, a separation groove is opened in the middle of the U-shaped elastic splint, the front and rear ends of the inner left side of the U-shaped elastic supporting plate are integrally formed with tooth gap limiting protrusions, the upper right end of the U-shaped elastic clamp is integrally formed with an embedding groove, and the upper end of the U-shaped elastic clamp is located at the outer edge of the embedding groove and is engraved with angle scale lines.

[0007] Preferably, the ruler column includes a disc seat, a bottom surface of the disc seat is embedded with a permanent magnet, the disc seat is sleeved in an embedding groove, the permanent magnet is adsorbed on the bottom surface of the embedding groove, the upper end of the disc seat is integrally formed with a U-shaped frame, the outer side wall of the U-shaped frame is engraved with scale lines, and the outer side wall of the disc seat is integrally formed with a pointer that matches the angle scale lines.

[0008] Preferably, the movable positioning sleeve includes a movable block, both ends of the movable block are provided with socket holes, the two socket holes are respectively socketed with the two sides of the U-shaped frame, the middle part of the movable block is provided with a plug hole, a connecting cross plate is socketed in the plug hole, and the middle part of the connecting cross plate is fixedly connected with an extended positioning rod.

[0009] Preferably, the depth detection rod includes a handle rod, the handle rod is sleeved in the plug-in hole, a clearance hole is opened in the middle of the handle rod, the clearance hole is sleeved with the extended positioning rod, the outer wall of the handle rod is penetrated by a clearance groove, the clearance groove is sleeved with the connecting cross plate, the left end of the handle rod is fixedly connected with a downwardly bent probe rod, the outer end of the probe rod is fixedly connected with a tightening clamp inclined to the left, a pencil lead is inserted in the tightening clamp, the right end of the handle rod is fixedly connected with a sleeve tube, the sleeve tube is sleeved with the extended positioning rod, and the outer wall of the sleeve tube is threaded with a locking screw.

[0010] Preferably, the tightening clamp comprises a conical head, an insertion hole is provided at the lower end of the conical head, and two opposite buffer grooves are provided on the outer side wall of the conical head.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model can accurately measure the depth from the caries cavity to the occlusal surface, thereby determining the height of the resin filling, so as to quickly and accurately complete the caries cavity filling, avoid excessive resin filling resulting in long-term occlusal adjustment, and reduce chairside operation time. It can not only alleviate the problem of joint discomfort caused by long-term mouth opening for patients, but also improve the work efficiency of doctors. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the disassembly of some structures of the utility model;

[0015] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0016] In the figure: a tooth fixture 1, a U-shaped elastic splint 11, a separation groove 12, a tooth gap limiting protrusion 13, an embedding groove 14, an angle scale line 15, a ruler column 2, a disc seat 21, a permanent magnet 22, a U-shaped frame 23, a scale line 24, a pointer 25, a movable positioning sleeve 3, a movable block 31, a sleeve hole 32, a plug hole 33, a connecting cross plate 34, an extended positioning rod 35, a depth detection rod 4, a handle rod 41, a clearance hole 42, a clearance groove 43, a probe rod 44, a tightening clamp 45, a conical head 451, an insertion hole 452, a buffer groove 453, a pencil lead 46, a sleeve tube 47, and a locking screw 48. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 The utility model provides a technical solution: a caries depth measuring ruler, including a tooth fixture 1, the upper end of the tooth fixture 1 is equipped with a ruler column 2, the ruler column 2 is slidably connected to a movable positioning sleeve 3, and the movable positioning sleeve 3 is slidably connected to a depth detection rod 4.

[0019] Specifically, the tooth fixator 1 includes a U-shaped elastic splint 11, a separation groove 12 is opened in the middle of the U-shaped elastic splint 11, tooth gap limiting protrusions 13 are integrally formed at the front and rear ends of the inner left side of the U-shaped elastic splint 11, an embedding groove 14 is integrally formed on the right side of the upper end of the U-shaped elastic splint 11, and the upper end of the U-shaped elastic splint 11 is located at the outer edge of the embedding groove 14 and is engraved with an angle scale line 15.

[0020] Specifically, the ruler column 2 includes a disc seat 21, a permanent magnet 22 is embedded in the bottom surface of the disc seat 21, the disc seat 21 is sleeved in the embedding groove 14, the permanent magnet 22 is adsorbed on the bottom surface of the embedding groove 14, a U-shaped frame 23 is integrally formed at the upper end of the disc seat 21, and scale lines 24 are engraved on the outer wall of the U-shaped frame 23, and a pointer 25 that matches the angle scale lines 15 is integrally formed on the outer wall of the disc seat 21.

[0021] Specifically, the movable positioning sleeve 3 includes a movable block 31, both ends of which are provided with socket holes 32, the two socket holes 32 are respectively socketed with the two sides of the U-shaped frame 23, and the middle part of the movable block 31 is provided with a plug hole 33, a connecting cross plate 34 is socketed in the plug hole 33, and an extended positioning rod 35 is fixedly connected to the middle part of the connecting cross plate 34.

[0022] Specifically, the depth detection rod 4 includes a handle rod 41, which is sleeved in the plug-in hole 33. A clearance hole 42 is opened in the middle of the handle rod 41, and the clearance hole 42 is sleeved with the extended positioning rod 35. The outer wall of the handle rod 41 is penetrated by a clearance groove 43, and the clearance groove 43 is sleeved with the connecting cross plate 34. The left end of the handle rod 41 is fixedly connected with a downwardly bent probe rod 44, and the outer end of the probe rod 44 is fixedly connected with a tightening clamp 45 inclined to the left, and a pencil lead 46 is inserted in the tightening clamp 45. The right end of the handle rod 41 is fixedly connected with a sleeve tube 47, which is sleeved with the extended positioning rod 35, and the outer wall of the sleeve tube 47 is screwed with a locking screw 48, which is squeezed with the extended positioning rod 35.

[0023] Specifically, the tightening clamp 45 includes a conical head 451 , an insertion hole 452 is formed at the lower end of the conical head 451 , and two opposite buffer grooves 453 are formed on the outer side wall of the conical head 451 .

[0024] Working principle: When the utility model is in use, after the soft temporary material dental mold is pressed together to form the occlusal surface, the U-shaped elastic splint 11 is sleeved on the teeth adjacent to the caries, and the two tooth gap limiting protrusions 13 are embedded in the tooth gap between the caries and the adjacent teeth. At this time, the ruler column 2 is connected to the embedding groove 14 through the permanent magnet 22. At this time, the depth detection rod 4 is moved, and the lower end tip of the pencil lead 46 contacts the highest point of the occlusal surface, and the scale at the location is recorded through the upper end surface of the moving block 31 and the scale line 24. Then, the depth detection rod 4 is moved, and the lower end tip of the pencil lead 46 contacts the lowest point of the occlusal surface, and the scale at the location is recorded through the upper end surface of the moving block 31 and the scale line 24. The scale at the highest point minus the scale at the lowest point is the distance between the lowest point and the highest point of the tooth occlusal surface.

[0025] At the same time, the depth detection rod 4 is pushed into the oral cavity so that the lower end tip of the pencil lead 46 separates the soft temporary material and contacts the inner wall of the caries cavity to mark the mark. After that, the depth detection rod 4 is pulled back so that the lower end tip of the pencil lead 46 contacts the lowest point of the occlusal surface. At the same time, the locking screw 48 is locked, and the reading of the position of the angle scale line 15 pointed by the pointer 25 is recorded. The ruler column 2 and the depth detection rod 4 are removed from the dental fixture 1 as a whole, and the soft temporary material can be taken out and filled with resin. The resin is filled to the above-mentioned carved mark. At this time, the ruler column 2 and the depth detection rod 4 are installed on the dental fixture 1 as a whole, and the handle rod 41 and the extended positioning rod 35 are fixed by the locking screw 48, so that the depth detection rod 4 cannot be separated from the ruler column 2 and the depth detection rod 4. The column 2 moves relatively, so that the position of the pointer 25 and the angle scale line 15 is adjusted to be the same as the original recorded reading through the reading of the position of the angle scale line 15 pointed by the pointer 25. At this time, the depth detection rod 4 is pulled down to make the pencil lead 46 contact with the filled resin to mark the position of the lowest point of the occlusal surface. At this time, the tooth tip can be piled around this point. The height of the pile is the height between the highest point and the lowest point of the tooth occlusal surface. Compared with the current tooth measuring ruler, the utility model can accurately measure the depth of the caries to the occlusal surface, so as to determine the height of the resin filling, so as to complete the caries filling quickly and accurately, avoid excessive resin filling and cause long-term occlusal adjustment, and reduce the chairside operation time. It can not only alleviate the problem of joint discomfort caused by long-term mouth opening, but also improve the work efficiency of doctors.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dental caries depth measuring ruler, comprising a tooth fixture (1), characterized in that: The upper end of the tooth fixture (1) is equipped with a ruler column (2), a movable positioning sleeve (3) is slidably connected to the ruler column (2), and a depth detection rod (4) is slidably connected to the movable positioning sleeve (3); The tooth fixator (1) comprises a U-shaped elastic splint (11), a separation groove (12) is provided in the middle of the U-shaped elastic splint (11), tooth gap limiting protrusions (13) are integrally formed at the front and rear ends of the left side of the interior of the U-shaped elastic splint (11), an embedding groove (14) is integrally formed on the right side of the upper end of the U-shaped elastic splint (11), and an angle scale line (15) is engraved on the outer edge of the embedding groove (14) at the upper end of the U-shaped elastic splint (11); The ruler column (2) comprises a disc seat (21), a bottom surface of the disc seat (21) is embedded with a permanent magnet (22), the disc seat (21) is sleeved in the embedding groove (14), the permanent magnet (22) and the bottom surface of the embedding groove (14) are attracted to each other, a U-shaped frame (23) is integrally formed at the upper end of the disc seat (21), a scale line (24) is engraved on the outer side wall of the U-shaped frame (23), and a pointer (25) matched with the angle scale line (15) is integrally formed on the outer side wall of the disc seat (21); The movable positioning sleeve (3) comprises a movable block (31), both ends of the movable block (31) are provided with sleeve holes (32), the two sleeve holes (32) are respectively sleeved with the two sides of the U-shaped frame (23), the middle part of the movable block (31) is provided with a plug hole (33), a connecting cross plate (34) is sleeved in the plug hole (33), and the middle part of the connecting cross plate (34) is fixedly connected with an extended positioning rod (35); The depth detection rod (4) comprises a handle rod (41), the handle rod (41) is sleeved in the insertion hole (33), a middle portion of the handle rod (41) is provided with a clearance hole (42), the clearance hole (42) is sleeved with the extended positioning rod (35), an outer side wall of the handle rod (41) is penetrated with a clearance groove (43), the clearance groove (43) is sleeved with the connecting cross plate (34), and the left end of the handle rod (41) is fixedly connected with a downwardly bent probe The outer end of the probe rod (44) is fixedly connected with a tightening clamp (45) inclined to the left, and a pencil lead (46) is inserted into the tightening clamp (45). The right end of the handle rod (41) is fixedly connected with a sleeve tube (47), and the sleeve tube (47) is sleeved with the extended positioning rod (35). The outer wall of the sleeve tube (47) is screwed with a locking screw (48), and the locking screw (48) is pressed against the extended positioning rod (35); The tightening clamp (45) comprises a conical head (451), an insertion hole (452) is provided at the lower end of the conical head (451), and two opposite buffer grooves (453) are provided on the outer side wall of the conical head (451).

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