Dental crack detection instrument

Abstract

The utility model relates to the technical field of inspection instrument, disclose a tooth crack inspection instrument, including occlusal bar, mouthpiece, mouthpiece is equipped with a plurality of for the cooperation hole of occlusal bar passes through, each cooperation hole all is equipped with the automatic fixing structure for fixing occlusal bar. Through above -mentioned technical scheme, solved the problem that the doctor needs to hold occlusal bar for a long time in prior art, thereby avoiding the problem that occlusal bar (inspection instrument) falls off when the patient loosens.

Description

Technical Field

[0001] This utility model relates to the field of examination instrument technology, and in particular to an instrument for examining tooth cracks. Background Technology

[0002] Tooth cracks typically refer to tiny cracks that appear on or inside the tooth surface. These cracks are difficult to detect but can cause pain, sensitivity, and even tooth breakage. Because tooth cracks are difficult to observe with the naked eye, instruments and various corresponding examination methods have been developed for detecting tooth cracks.

[0003] Among these methods, bite testing is a common examination technique, and the instruments used in conjunction with it typically include bite rods. By having the patient bite down on a specific point, pain upon releasing the bite indicates that the tooth may have a microcrack. This method can quickly and accurately locate teeth at risk of microcracks, and its low examination cost has led to its widespread adoption.

[0004] However, this examination method requires the dentist to maintain a constant pressure; otherwise, the bite rod (examination instrument) may easily fall off when the patient releases their grip. Utility Model Content

[0005] The main purpose of this invention is to provide a solution to the problem in related technologies where doctors need to hold the bite rod for a long time to prevent the bite rod (examination instrument) from falling off when the patient releases it.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A dental crack examination instrument includes a biting rod and a dental sleeve. The dental sleeve has several mating holes for the biting rod to pass through, and each of the mating holes is provided with an automatic fixing structure for fixing the biting rod.

[0008] Furthermore, the bite bar is provided with a fixing groove for engaging the automatic fixing structure; the automatic fixing structure includes a sliding groove, a fixing plate, and an elastic element for quickly resetting the fixing plate. The sliding groove is formed on the dental brace, and the fixing plate is slidably connected to the sliding groove.

[0009] Furthermore, the fixed pressure plate has a linkage inclined surface at one end close to the fixed groove for interaction with the biting rod.

[0010] Furthermore, the dental brace includes a first plate and a second plate, and each of the mating holes includes a first hole body and a second hole body. The first hole body and the second hole body are respectively opened on the first plate and the second plate, and both the first plate and the second plate have an automatic fixing structure.

[0011] Furthermore, the engagement rod includes an eccentric shaft and a rod body, the eccentric shaft being tangent to the radial surface of the rod body, and the fixing groove being located between the two ends of the eccentric shaft; the engagement rod is rotatably connected to the mating hole.

[0012] Furthermore, the second hole is a blind hole structure, and the first hole penetrates through the first plate.

[0013] Furthermore, the biting rod includes a rotating rod body for easy rotation of itself, and the rotating rod body is provided with an arrow for indicating the location of the eccentric shaft.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] This utility model includes a bite bar and a dental brace. The dental brace has several mating holes for the bite bar to pass through it, and each mating hole has an automatic fixing structure for fixing the bite bar.

[0016] This utility model's technical solution achieves fixation of the bite rod in the human mouth by having it cooperate with the braces. Thus, even if the doctor does not apply force to the bite rod, it will not fall out of the patient's mouth after the patient releases their grip, effectively preventing the bite rod from falling off or to the ground. It also avoids the need for the doctor to retrieve a new bite rod, effectively improving the efficiency of medical treatment and the examination of dental cracks. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0019] Figure 2 for Figure 1 The main view;

[0020] Figure 3 for Figure 2 Sectional view of AA;

[0021] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;

[0022] Figure 5 for Figure 2 Sectional view of BB;

[0023] Figure 6This is a schematic diagram of the bite rod in this embodiment.

[0024] Explanation of icon numbers:

[0025] 1. Engaging bar; 11. Fixing groove; 12. Eccentric shaft; 13. Main body of the bar; 14. Rotating bar; 141. Arrow; 2. Dental sleeve; 21. Mating hole; 211. First hole body; 212. Second hole body; 22. First plate; 23. Second plate; 3. Automatic fixing structure; 31. Slide groove; 32. Fixing pressure plate; 321. Linkage inclined plane; 33. Elastic element.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] like Figures 1-2 , Figure 5 As shown in the figure, this embodiment proposes a tooth crack examination instrument, which mainly includes an occlusal rod 1 and a dental sleeve 2. The dental sleeve 2 mainly includes a first plate 22 and a second plate 23. The gap between the first plate 22 and the second plate 23 forms a relief groove for the patient's teeth to bite together. In this way, it can be effectively ensured that the dental sleeve 2 will not interfere with the patient's biting movement when it is in contact with the patient's teeth, thereby ensuring that the bite test can be carried out normally.

[0029] Meanwhile, the braces 2 are provided with several mating holes 21 for the biting rod 1 to pass through. The mating holes 21 pass through clearance grooves. In this way, after the biting rod 1 is placed into the mating hole 21, the patient can make the teeth contact the biting rod 1 through biting movements to perform a bite test. Correspondingly, each mating hole 21 matches each of the patient's teeth (e.g., each mating hole 21 is located above each tooth). In this way, by inserting the biting rod 1 into each mating hole 21 in sequence, each of the patient's teeth can be examined in sequence.

[0030] Furthermore, each mating hole 21 is equipped with an automatic fixing structure 3 for fixing the bite rod 1. That is, when the bite rod 1 is inserted into the mating hole 21, the automatic fixing structure 3 can achieve self-fixation of the bite rod 1. In this way, even if the doctor does not apply force to the bite rod 1, the bite rod 1 will not fall out of the patient's mouth after the patient loosens his mouth, effectively avoiding the occurrence of the bite rod 1 falling off or falling to the ground; avoiding the need for the doctor to retrieve a new bite rod 1, effectively improving the efficiency of medical treatment and tooth crack examination.

[0031] Specifically, such as Figures 3-4 As shown, the automatic fixation structure 3 includes a slide groove 31, a fixed pressure plate 32, and an elastic element 33 for quickly resetting the fixed pressure plate 32. The slide groove 31 is opened on the dental brace 2, and the fixed pressure plate 32 is slidably connected to the slide groove 31. The occlusal bar 1 is located between the fixed pressure plate 32 and the wall of the mating hole 21. That is, the occlusal bar 1 is clamped by the mutual cooperation between the fixed pressure plate 32 and the mating hole 21, thereby fixing the occlusal bar 1 in the dental brace 2 for the patient to bite.

[0032] Preferably, the braces 2 should cooperate with the patient's lower jaw so that the braces 2 is difficult to detach from the patient's teeth under the action of gravity, thereby avoiding the need for other components to fix the braces 2 in the patient's mouth and reducing the usage cost of this embodiment.

[0033] Meanwhile, to avoid the need to manually lift the fixing plate 32 when inserting the bite rod 1 into the mating hole 21, the fixing plate 32 has a linkage inclined surface 321 at one end close to the fixing groove 11 for interaction with the bite rod 1. Thus, with the guidance of the linkage inclined surface 321, when the bite rod 1 moves along the axial direction of the mating hole 21 (when the bite rod 1 is inserted into the mating hole 21), it can also lift the fixing plate 32, effectively avoiding the need for the doctor to manually adjust the fixing plate 32, and improving the assembly efficiency of this embodiment. Under the action of the elastic element 33, after the fixing plate 32 and the bite rod 1 cooperate with each other, the fixing plate 32 can always be in a state of mutual contact with the radial surface of the bite rod 1, thereby realizing the automatic fixation of the bite rod 1.

[0034] In this embodiment, each elastic element 33 is preferably a stainless steel compression spring to avoid rusting during the subsequent disinfection process, which helps to facilitate the secondary use of this embodiment.

[0035] In order to improve the fixing effect of the automatic fixing structure 3 on the biting rod 1, the biting rod 1 is provided with a fixing groove 11 for cooperating with the automatic fixing structure 3. Correspondingly, when the biting rod 1 moves a certain distance along the axial direction of the mating hole 21, the fixing groove 11 on the biting rod 1 is located below the fixing pressure plate 32, so that the engagement between the biting rod 1 and the fixing pressure plate 32 can be realized in an embedded manner, thereby strengthening the fixing strength of the automatic fixing structure 3 on the biting rod 1.

[0036] like Figure 3 , Figure 6As shown, the bite bar 1 includes an eccentric shaft 12 and a main body 13. The eccentric shaft 12 is tangent to the radial surface of the main body 13. The fixing groove 11 is located between the two ends of the eccentric shaft 12, that is, the end of the fixing plate 32 close to the bite bar 1 abuts against the radial surface of the eccentric shaft 12. Preferably, the groove wall of the fixing groove 11 is flush with the end face of the eccentric shaft 12. In this way, after the fixing plate 32 is embedded in the fixing groove 11, the abutment relationship between the fixing plate 32 and the groove wall of the fixing groove 11 can prevent the bite bar 1 from coming out of the mating hole 21. The bite bar 1 is rotatably connected to the mating hole 21. Thus, by rotating the bite bar 1, the eccentric shaft 12 can rotate around the main body 13, thereby pushing the fixing plate 32 up and causing the fixing plate 32 to disengage from the fixing groove 11. Then, the bite bar 1 can be pulled out of the mating hole 21, completing the quick disassembly of the bite bar 1.

[0037] Correspondingly, the occlusal bar 1 includes a rotating bar body 14 for easy rotation. The projection surface of the rotating bar body 14 in the axial direction of the occlusal bar 1 is a polygonal structure, so that the doctor can apply force on the rotating bar body 14 in a surface contact manner, effectively avoiding slippage during the rotation of the occlusal bar 1. The rotating bar body 14 is provided with an arrow 141 for indicating the location of the eccentric shaft 12, so that the doctor can easily check whether the fixing plate 32 has disengaged from the fixing groove 11, further facilitating the disassembly of the occlusal bar 1.

[0038] Meanwhile, each mating hole 21 includes a first hole body 211 and a second hole body 212. The first hole body 211 and the second hole body 212 are respectively opened on the first plate 22 and the second plate 23. The first plate 22 and the second plate 23 each have an automatic fixing structure 3. Correspondingly, the occlusal bar 1 includes two eccentric shafts 12, so that there are multiple fixing points between the occlusal bar 1 and the dental brace 2, which further improves the fixing strength between the occlusal bar 1 and the dental brace 2.

[0039] The second hole 212 is a blind hole structure, and the first hole 211 penetrates the first plate 22. That is, during the process of the biting rod 1 moving along the axial direction of the mating hole 21, there is a limit to the movement distance. This effectively avoids the biting rod 1 being inserted too deeply into the mating hole 21, which would cause the fixing grooves 11 and the fixing pressure plate 32 to fail to match successfully, or even cause the biting rod 1 to detach from the dental brace 2. This effectively improves the accuracy of the matching and interlocking of the fixing grooves 11 and the fixing pressure plate 32.

[0040] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0041] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An instrument for examining tooth cracks, comprising a biting rod (1), characterized in that, A dental brace (2) is provided, which has several mating holes (21) for the biting rod (1) to pass through, and each of the mating holes (21) is provided with an automatic fixing structure (3) for fixing the biting rod (1).

2. The instrument for examining tooth cracks according to claim 1, characterized in that, The biting rod (1) is provided with a fixing groove (11) for cooperating with the automatic fixing structure (3); The automatic fixing structure (3) includes a slide groove (31), a fixing plate (32), and an elastic element (33) for quickly resetting the fixing plate (32). The slide groove (31) is opened on the dental brace (2), and the fixing plate (32) is slidably connected to the slide groove (31).

3. The instrument for examining tooth cracks according to claim 2, characterized in that, The fixed pressure plate (32) has a linkage inclined surface (321) at one end close to the fixed groove (11) for linkage with the biting rod (1).

4. The instrument for examining tooth cracks according to claim 2, characterized in that, The dental brace (2) includes a first plate (22) and a second plate (23). Each of the mating holes (21) includes a first hole body (211) and a second hole body (212). The first hole body (211) and the second hole body (212) are respectively opened on the first plate (22) and the second plate (23). The first plate (22) and the second plate (23) each have an automatic fixing structure (3).

5. The instrument for examining tooth cracks according to any one of claims 2 to 4, characterized in that, The biting rod (1) includes an eccentric shaft (12) and a rod body (13). The eccentric shaft (12) is tangent to the radial surface of the rod body (13), and the fixing groove (11) is located between the two ends of the eccentric shaft (12). The biting rod (1) is rotatably connected to the mating hole (21).

6. The instrument for examining tooth cracks according to claim 4, characterized in that, The second hole (212) is a blind hole structure, and the first hole (211) penetrates the first plate (22).

7. The instrument for examining tooth cracks according to claim 5, characterized in that, The biting rod (1) includes a rotating rod body (14) for easy rotation of itself, and the rotating rod body (14) is provided with an arrow (141) for indicating the location of the eccentric shaft (12).

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