A tooth body tissue external fixing sleeve for preventing tooth fissure from splitting

Abstract

The application relates to the technical field of oral medical instruments, and discloses a tooth body tissue external fixing sleeve for preventing split of tooth crack, which comprises an elastic unit, a locking unit and a fixing belt, wherein the locking unit is arranged in two, the elastic unit is connected with the locking units on the two sides, the locking unit is provided with a one-way perforation, the fixing belt can pass through the one-way perforation in one direction, the fixing belt passes through the one-way perforations on the locking units at two ends, the fixing belt, the two locking units and the elastic unit form a ring structure, the locking unit can be pasted and fixed on the tooth surface, and a spacing space is arranged between the two locking units. Through the technical scheme, the problems of the existing technology, i.e. the inconvenient operation and the difficult cleaning of the hidden crack tooth fixing mode, are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oral medical instruments, in particular to a tooth tissue external fixing sleeve for preventing split of tooth crack. BACKGROUND

[0002] At present, with the overall improvement of people's oral hygiene, the incidence of tooth loss caused by caries is getting lower and lower, and the cases of tooth crack or split that cannot be retained are increasing, especially in the department of geriatric oral diseases. The concealment and complexity of the crack bring challenges to the clinical diagnosis, treatment and prognosis evaluation of tooth crack. How to effectively intervene in tooth crack has always been a hot and difficult problem for clinicians. For teeth with crack involving the pulp and root canal wall, due to the high risk of split, the current mainstream treatment strategy is to extract the affected tooth. However, for some elderly patients with multiple system diseases who cannot tolerate tooth extraction, and for some teeth with complex partial denture function, the successful retention of the affected tooth becomes the best choice in the above-mentioned situations.

[0003] The current traditional method is to fix the orthodontic ligation wire outside the tooth with crack by ligation. The ligation wire is made into double strands, the tooth surface is ground at the axial corner of the tooth with crack to prepare a limiting groove for fixing the ligation wire, the two ends of the ligation wire are twisted into a strand by a hemostat and fixed with force, the excess ligation wire is cut off and removed to reduce the size of the twisted suspension of the ligation wire. The above-mentioned method is complicated in clinical operation, the interproximal suspension causes difficulty in cleaning the periodontal tissue, and the size of the fixation force is difficult to control. Due to factors such as metal fatigue, fixed ring slipping to the neck of the tooth, and obvious attenuation with time, a new structure with reasonable function, perfect effect and outstanding performance is needed to solve the above-mentioned problems. SUMMARY

[0004] The present application provides a tooth tissue external fixing sleeve for preventing split of tooth crack, which solves the problems of complicated operation and difficult cleaning of the existing technology.

[0005] The technical scheme of the present application is as follows:

[0006] A tooth tissue external fixing sleeve for preventing split of tooth crack, the fixing sleeve comprises an elastic unit, a lock unit and a fixing belt, wherein the lock unit is provided with two lock units, the elastic unit is connected to the lock unit on both sides, the lock unit is provided with a one-way perforation, the fixing belt can pass through the one-way perforation in one direction, the fixing belt passes through the one-way perforation on both ends of the lock unit, the fixing belt, the two lock units and the elastic unit form a ring structure, the lock unit can be fixed on the surface of the tooth, and a spacing is provided between the two lock units.

[0007] Two ends of the elastic unit are detachably connected with the lock unit.

[0008] The one-way limiting structure is arranged in the one-way perforation, the fixing band comprises clamping segments at two ends, inner surfaces of the clamping segments are provided with one-way teeth, and the one-way teeth are clamped with the one-way limiting structure.

[0009] The fixing band further comprises a tightening segment between the clamping segments at two sides, and an inner surface of the tightening segment is a flat surface.

[0010] The fixing sleeve further comprises a tension scale, a middle part of the tension scale is connected with a middle part of the elastic unit, and the tension scale and the elastic unit are parallel to each other.

[0011] A plurality of fixing bands can be arranged, and distribution positions of the fixing bands in a tooth height direction can be selectively adjusted.

[0012] An interval space area between the two lock units is not less than one half of a tooth surface area.

[0013] The lock units are pasted on two side edges of a cheek side of a tooth.

[0014] The application further discloses a method for preventing a split of a cracked tooth, and the method is applied to the tooth tissue outer fixing sleeve in the above scheme, and the method comprises the following steps.

[0015] Surface cleaning, a periodontal surface of the cracked tooth is cleaned;

[0016] Determining a sleeve height, the sleeve height is determined according to a crack position and a crack depth of the cracked tooth;

[0017] Determining a tightening degree, the tightening degree is determined according to the crack depth and the crack width;

[0018] Installing the fixing sleeve, the fixing sleeve is sleeved on the cracked tooth according to the sleeve height, and the tightening degree of the fixing band is adjusted according to the tightening degree;

[0019] Fixing the lock units, interval spaces between the two lock units are kept, and the fixing sleeve is fixed by using fluid resin.

[0020] The working principle and beneficial effects of the application are as follows.

[0021] The application discloses a tooth body tissue external fixing sleeve for preventing split of a cracked tooth, which comprises two locking units, a fixing belt, a one-way perforation and an elastic unit. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application will be further described in detail below in combination with the drawings and specific embodiments.

[0023] Fig. 1 A structure schematic diagram of the fixing sleeve before use of the application is shown in the figure.

[0024] Fig. 2 A structure schematic diagram of the fixing sleeve after use of the application is shown in the figure, wherein the elastic unit and the tension scale are partially disassembled.

[0025] Fig. 3 A structure schematic diagram of the locking unit of the application is shown in the figure.

[0026] In the figure: 1, elastic unit; 2, locking unit; 3, fixing belt; 4, one-way perforation; 5, spacing space; 6, clamping section; 7, one-way tooth; 8, tightening section; 9, tension scale; 10, first locking block; 11, second locking block; 12, fine adjustment wedge block; 13, adjusting screw; 14, inclined hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the application will be clearly and completely described below in combination with the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments of the application, all other embodiments obtained by those skilled in the art without creative work are involved in the protection scope of the application.

[0028] As Figs. 1-2The embodiment shown provides a tooth body tissue external fixing sleeve for preventing split of tooth crack, which comprises an elastic unit 1, two locking units 2 and a fixing belt 3, wherein the two locking units 2 are arranged on the two sides of the elastic unit 1, the locking units 2 are provided with one-way perforations 4, the fixing belt 3 can pass through the one-way perforations 4 in one direction, the two ends of the fixing belt 3 pass through the one-way perforations 4 of the locking units 2, the fixing belt 3, the two locking units 2 and the elastic unit 1 form a ring structure, and the locking units 2 are pasted on the tooth surface.

[0029] In the embodiment, the tooth body tissue external fixing sleeve for preventing split of tooth crack is provided with two locking units 2, the two ends of the fixing belt 3 pass through the one-way perforations 4 of the two locking units 2, and the elastic unit 1 is arranged between the two locking units 2, so as to form a ring-shaped fixing sleeve structure, which is sleeved on the tooth crack, the two ends of the fixing belt 3 are tightened, the fixing belt 3 is clamped with the one-way perforations 4, the elastic unit 1 is elongated, the tightening force of the tooth crack is controlled, the tooth crack is protected, the interval space 5 is arranged between the two locking units 2, the tooth surface is exposed as much as possible for cleaning and observation, the locking units 2 are pasted on the tooth surface, so that the fixing sleeve can maintain stable tightening force without power leakage, and the tooth crack is better protected.

[0030] In the possible embodiment, the fixing belt 3 can be a stainless steel strip with relatively thin thickness, and the existing technology adopts double-stranded ligation wire as the tightening material. Compared with the double-stranded ligation wire, the double-stranded ligation wire has irregular shape, relatively thick thickness, different thickness at different positions, and is not in close contact with the tooth surface. In addition, the tooth crack needs to be ground by a concave die for position keeping, and needs to be fixed by knotting to form a protrusion, so that the tightening force of the tooth crack is uneven, the contact part between the ligation wire and the tooth surface is easy to accumulate foreign matters, the cleaning degree is affected, and the tooth health is affected. In the present application, the thin fixing belt 3 is adopted, which has relatively thin thickness compared with the double-stranded ligation wire, is relatively comfortable and convenient to install in the tooth gap between the tooth crack and the adjacent tooth, has uniform contact surface with the tooth surface, and has balanced stress on the tooth crack. In addition, the tooth crack needs to be kept in a relatively clean state to delay tooth damage and prevent the crack from further expanding under the action of the pre-tightening force of the fixing sleeve. The fixing belt 3 is relatively easy to clean and not easy to accumulate foreign matters compared with the ligation wire. Further, the interval arrangement of the locking units 2 pastes the positions on the tooth surface on both sides of the tooth surface, the interval space 5 in the middle exposes the tooth surface to improve the cleaning degree and expand the visual range of the tooth health. Compared with the prior art, the operation is more simplified, and the pre-tightening and crack prevention effect and the tooth health are significantly improved.

[0031] The two ends of the elastic unit 1 are detachably connected with the lock unit 2.

[0032] On the basis of the above embodiment, the elastic unit 1 and the lock unit 2 can be provided as detachable connection. After the fixing sleeve is tightened to a suitable pre-tightening force at a suitable height, the lock unit 2 is pasted on the tooth surface. At this time, the elastic unit 1 can be removed from the lock unit 2. Then, the exposed area of the interval space 5 between the lock units 2 is increased, so that the area that can be cleaned by the tooth surface is larger, thereby better maintaining health. In addition, after the lock unit 2 is pasted and fixed, the elastic unit 1 is removed, and the fixing belt 3 can still maintain sufficient tightening force. The removal of the elastic unit 1 can reduce the components on the patient's cracked teeth, thereby improving the comfort of the patient. In possible embodiments, the elastic unit 1 can be a spring. The connection between the spring and the lock unit 2 can be a buckle connection. In order to facilitate operation, a plug-in buckle structure can be used. The female buckle of the plug-in buckle is arranged at the two ends of the spring, and the male buckle of the plug-in buckle is arranged on the opposite side of the two lock units 2. When installed, the female buckle is plugged into the male buckle, which is simple and convenient to operate.

[0033] The one-way limiting structure is arranged in the one-way perforation 4. The fixing belt 3 includes the clamping sections 6 at the two ends. The inner surface of the clamping section 6 is provided with the one-way teeth 7. The one-way teeth 7 can be clamped with the one-way limiting structure.

[0034] On the basis of the above embodiment, the lock unit 2 is provided with the one-way perforation 4, and the fixing belt 3 passes through the one-way perforation 4. The fixing belt 3 and the one-way perforation can only pass through in one direction, thereby realizing the function of tightening the fixing sleeve when pulling the fixing belt 3 at both ends. Specifically, the one-way limiting structure is arranged in the one-way perforation 4. The fixing belt 3 is provided with the clamping sections 6 at the two ends. The clamping section 6 has a certain length. The clamping section 6 passes through the one-way limiting structure in the one-way perforation. The one-way teeth 7 on the clamping section 6 are clamped with the one-way limiting structure. A plurality of one-way teeth 7 are arranged on the clamping section 6, so that the tightness can be adjusted. Exemplarily, the one-way limiting structure can be provided as a tooth structure. The tooth shape direction of the one-way limiting structure is opposite to the direction of the one-way teeth 7 on the clamping section 6. The one-way limiting structure can also adopt a clamping groove with a direction opposite to that of the clamping section 6. The specific implementation of the one-way limiting structure is optional.

[0035] The fixing belt 3 further includes the tightening section 8 between the clamping sections 6 at the two sides. The inner surface of the tightening section 8 is a flat surface.

[0036] On the basis of the above embodiment, the two ends of the fixing band 3 are clamping sections 6, and the middle of the two clamping sections 6 is designed as a tightening section 8. The inner surface of the tightening section 8 abutting against the hidden crack tooth is a flat surface, and the thickness of the tightening section 8 is relatively thin. The diameter of the ligation wire is 0.2-0.3 mm. The thickness of the double-stranded ligation wire is relatively thicker. The thickness of the tightening section 8 can be replaced by a 0.1 mm stainless steel strip instead of the double-stranded ligation wire. The tightening section 8 can be tightly attached to the adjacent surface of the hidden crack tooth, which is convenient for cleaning the periodontal tissue.

[0037] The fixing sleeve further comprises a tension scale 9, the middle of the tension scale 9 is connected with the middle of the elastic unit 1, and the tension scale 9 is parallel to the elastic unit 1.

[0038] On the basis of the above embodiment, the tension scale 9 is provided, the middle of the tension scale 9 is connected with the middle of the elastic unit 1, and the tension scale 9 is provided with tension marks for marking after the elastic unit 1 is stretched. When the two ends of the fixing band 3 are pulled, the elastic unit 1 is stretched, the fixing sleeve is tightened, and the locking units 2 at the two ends of the elastic unit 1 are away from each other. The position of the locking units 2 can be corresponded to the tension marks on the tension scale 9 to accurately grasp the tightening force of the fixing sleeve. Compared with the prior art, the double-stranded ligation wire can only rely on the rich experience of the doctor to grasp the force and is not accurate. For the hidden crack tooth, the force may be too large or too small, which leads to that the hidden crack tooth is not tightened in place or is too tightly tightened to cause extrusion damage, and it is difficult to achieve the most suitable tightening force.

[0039] Based on the above embodiment, in a further possible embodiment, referring to Fig. 3 , the locking unit 2 is a split structure, the locking unit 2 comprises a first locking block 10, a second locking block 11, a fine adjustment wedge block 12 and an adjusting screw 13. The first locking block 10 and the second locking block 11 are relatively slidably connected. The second locking block 11 is used for being attached to the tooth surface. The first locking block 10 is provided with an inclined hole 14. The fine adjustment wedge block 12 is movably arranged in the inclined hole 14. The adjusting screw 13 is connected with the first locking block 10 through the wedge block. The adjusting screw 13 is locked to drive the fine adjustment wedge block 12 to move in the inclined hole 14, so that the first locking block 10 and the second locking block 11 relatively move. The first locking block 10 is provided with a one-way perforation 4. After being installed in place, the second locking block 11 is attached and fixed on the tooth surface. The relative position between the first locking block 10 and the second locking block 11 can be adjusted according to the development of the hidden crack tooth, and the tightening force is fine adjusted, so that the fixing sleeve maintains a suitable tightening protection force on the tooth.

[0040] The fixing band 3 can be provided with multiple fixing bands 3, and the distribution position of the fixing band 3 along the height direction of the tooth can be selectively adjusted.

[0041] On the basis of the above embodiment, the number of the fixing bands 3 can be set to one or more. If the fixing band 3 is one, the fixing band 3 can be selected to be fixed at one third of the height of the tooth. Of course, multiple fixing bands 3 can also be adopted. According to the depth and position of the hidden crack of the hidden crack tooth, the specific positions of the different fixing bands 3 in the height range of the tooth are reasonably arranged. For example, two fixing bands 3 are set. One of them can be set below the depth of the hidden crack to prevent further expansion of the hidden crack. The other one can be set above the depth of the hidden crack to protect the tooth from stress expansion of the crack during use. Of course, this is only an example and is not limiting. More fixing bands 3 can also be set for reasonable fixing.

[0042] The spacing space 5 between the two locking units 2 is not less than one half of the area of the tooth surface.

[0043] On the basis of the above embodiment, the spacing space 5 between the two locking units 2 is not less than one half of the area of the tooth surface, which can ensure sufficient cleaning area to effectively clean the tooth. Therefore, the application combines tightening and cleaning health care to a great extent to protect the hidden crack tooth of the patient and prolong the service life.

[0044] The locking unit 2 is pasted on the two side edges of the buccal surface of the tooth.

[0045] On the basis of the above embodiment, the locking unit 2 is located on the two side edges of the buccal surface of the tooth, so that the tooth surface can be better cleaned.

[0046] The application also proposes an embodiment, which discloses a method for preventing the hidden crack tooth from splitting. The method is applied to the tooth tissue outer fixing sleeve in the above embodiment and includes the following steps:

[0047] Surface cleaning, cleaning the periodontal surface of the hidden crack tooth;

[0048] Determining the sleeve height, determining the sleeve height according to the crack position and depth of the hidden crack tooth;

[0049] Determining the tightening degree, determining the tightening degree according to the depth and width of the crack;

[0050] Installing the fixing sleeve, sleeving the fixing sleeve on the hidden crack tooth according to the sleeve height, and adjusting the tightening degree of the fixing band 3 according to the tightening degree;

[0051] Fixing the locking unit 2, keeping the spacing space 5 between the two locking units 2, and fixing the fixing sleeve by using fluid resin.

[0052] The embodiment can be implemented based on the basic scheme of the fixed sleeve of the application, and of course can be implemented based on other extended embodiments. The surface of the cracked tooth is cleaned, the periodontal health is maintained, and the position stability of the fixed sleeve is also improved. The installation position of the fixed sleeve on the axial height of the tooth is determined according to the crack position and depth of the cracked tooth. The tightening degree is determined according to the depth and width of the crack. The fixed sleeve is sleeved on the cracked tooth. The both ends of the fixed belt 3 are pulled, the fixed belt 3 is tightened, and after the fixed sleeve is tightened according to the preset height and degree, the interval space 5 between the locking units 2 is maintained. The fixed sleeve is fixed by using fluid resin.

[0053] In further embodiments, after the step of fixing the locking unit 2, the following steps can also be provided. After the locking unit 2 is fixed, the elastic unit 1 is removed, and the interval space 5 is expanded. After the position of the locking unit 2 is adjusted according to the target pre-tightening force and fixed, the elastic unit 1 is removed, and the tension scale 9 can also be removed.

[0054] In further embodiments, the following steps can also be provided after the step of removing the elastic unit 1. The locking unit 2 is fine-tuned, and the pre-tightening force of the fixed sleeve matches the cracking trend of the cracked tooth. By adjusting the screwing depth of the adjusting screw 13, the fine-tuning wedge 12 is moved in the inclined hole 14, the fine-tuning wedge 12 presses the first locking block 10, the first locking block 10 and the second locking block 11 are relatively moved, and the first locking block 10 is fine-tuned to tighten the fixed belt 3, so as to adjust the tightening force.

[0055] The above is only a preferred embodiment of the application, and is not used to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. An external fixation sleeve for preventing tooth cracks from splitting, characterized in that, The fixing sleeve includes an elastic unit (1), a locking unit (2), and a fixing strap (3). There are two locking units (2). The two sides of the elastic unit (1) are respectively connected to the locking units (2). The locking unit (2) is provided with a one-way through hole (4). The fixing strap (3) can pass through the one-way through hole (4) in one direction. The two ends of the fixing strap (3) pass through the one-way through hole (4) on the locking unit (2). The fixing strap (3), the two locking units (2), and the elastic unit (1) form a ring structure. The locking unit (2) can be glued and fixed to the tooth surface. There is a gap space (5) between the two locking units (2).

2. The external fixation sleeve for preventing tooth cracks from splitting according to claim 1, characterized in that, The two ends of the elastic unit (1) are detachably connected to the locking unit (2).

3. The external fixation sleeve for preventing tooth cracks from splitting according to claim 1, characterized in that, The one-way perforation (4) is provided with a one-way limiting structure. The fixing band (3) includes snap-fit ​​sections (6) located at both ends. The inner surface of the snap-fit ​​section (6) is provided with one-way teeth (7). The one-way teeth (7) can snap into the one-way limiting structure.

4. The external fixation sleeve for preventing tooth cracks from splitting according to claim 3, characterized in that, The fixing strap (3) also includes a tightening section (8) located between the snap-fit ​​sections (6) on both sides, and the inner surface of the tightening section (8) is a flat surface.

5. The external fixation sleeve for preventing tooth cracks from splitting according to claim 1, characterized in that, The fixing sleeve also includes a tension scale (9), the middle part of which is connected to the middle part of the elastic unit (1), and the tension scale (9) and the elastic unit (1) are parallel to each other.

6. The external fixation sleeve for preventing tooth cracks from splitting according to claim 1, characterized in that, Multiple fixing bands (3) can be provided, and the distribution position of the fixing bands (3) along the tooth height direction can be selectively adjusted.

7. The external fixation sleeve for preventing tooth cracks from splitting according to claim 1, characterized in that, The area of ​​the space (5) between the two locking units (2) is not less than half the area of ​​the tooth surface.

8. The external fixation sleeve for preventing tooth cracks from splitting according to claim 7, characterized in that, The locking unit (2) is attached to the two sides of the buccal side of the tooth.

Images