Device, installation method and installation system for mesial movement of inclined molar

Abstract

The invention discloses a device for mesial movement of inclined molars, a mounting method and a mounting system, and relates to the technical field of orthodontics. Comprising a steel wire straightener, the steel wire straightener is of a long-strip-shaped structure, and the steel wire straightener starts to be fixed from a disengagement groove in a third molar on the normal side to a normal tooth disengagement groove adjacent to a mesial inclined molar. According to the steel wire appliance, a first bending part parallel to the tooth cheek side face is formed between inclined molars and teeth adjacent to the inclined molars and faces the gingiva side, a second bending part is formed at the bottom end of the first bending part, a third bending part is formed at the second bending part, and a fourth bending part is formed at the top end of the third bending part. The bottom end of the fourth bent part extends upwards to form a fifth bent part, the top end of the fifth bent part extends towards one side of the inclined molar to form a sixth bent part, the sixth bent part and the gingiva are arranged at an angle, and the sixth bent part penetrates through and is fixed on a buccal tube fixed on the inclined molar; and the fourth bending part, the fifth bending part and the sixth bending part form a second petal curve.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tooth correction, in particular to a device for mesial movement of tilted molar, installation method and installation system. BACKGROUND

[0002] In fixed orthodontic treatment, the most common situation of mesial tilting is mesial tilting of the second molar. When the first molar is lost or extracted, the second molar loses the mesial abutment and occlusal support, and under the combined action of masticatory force, buccal and lingual muscle force and periodontal fiber tension, the second molar tilts in the direction of the gap. This is the most common situation in clinical practice.

[0003] In existing fixed orthodontic treatment, the molar that tilts mesially needs to be moved mesially as a whole to close the gap, and when the molar is uprighted, a straight orthodontic special stainless steel wire is mainly used in combination with a skin chain or a spring to move the teeth. However, in the treatment, it is often difficult to move the teeth, the molar as a whole cannot be moved, and even the molar that tilts mesially tilts more mesially, resulting in poor clinical tooth treatment effect. SUMMARY

[0004] Therefore, the embodiments of the present application provide a device for mesial movement of tilted molar by petal curve to solve the above technical problems.

[0005] In order to achieve the above purpose, the embodiments of the present application provide the following technical solutions:

[0006] A device for mesial movement of tilted molar by petal curve, comprising a steel wire corrector, wherein the steel wire corrector has a long strip structure, the steel wire corrector is fixed on the off-slot of the third molar on the normal side and extends to the off-slot of the tooth adjacent to the tilted molar, the steel wire corrector forms a first bending part parallel to the buccal side between the tilted molar and the tooth adjacent thereto towards the gingival side, then a second bending part is formed from the bottom end of the first bending part towards the tilted molar, a third bending part is formed in the direction away from the gingiva at the end of the second bending part close to the tilted molar, the first bending part, the second bending part and the third bending part form a first petal curve between the tilted molar and the tooth adjacent thereto, the top end of the third bending part extends towards the direction of the tilted molar and beyond the tilted molar to form a fourth bending part, the fourth bending part is arranged at an angle to the gingiva, the bottom end of the fourth bending part extends upwards to form a fifth bending part, the top end of the fifth bending part extends towards the side of the tilted molar to form a sixth bending part, the sixth bending part is arranged at an angle to the gingiva, and the sixth bending part passes through and is fixed to the buccal side tube fixed on the tilted molar, and the fourth bending part, the fifth bending part and the sixth bending part form a second petal curve.

[0007] Optionally, the steel wire corrector adopts orthodontic special round wire 0.018 or 0.017*0.025 orthodontic special stainless steel square wire.

[0008] Optionally, the included angle between the fourth bending part and the gum is 15°-30°.

[0009] Optionally, the included angle between the sixth bending part and the gum is 15°-30°.

[0010] Optionally, the fourth bending part exceeds the distal side of the mesial inclined molar by 1mm.

[0011] The second aspect is a mounting method of the device for moving the mesial inclined molar by petal bending, comprising:

[0012] S 1: determining the position and inclination angle of the mesial inclined tooth of the patient;

[0013] S2: sequentially paste and fix the brackets on the buccal side of the normal teeth of the patient, and then paste and fix the buccal tube on the buccal side of the inclined molar of the patient;

[0014] S3: one end of the steel wire corrector starts from the molar on the normal side, is sequentially fixed in the bracket on the buccal side of the tooth, and is fixed by the bracket, until it is fixed to the normal tooth adjacent to the mesial inclined molar, then the steel wire corrector is bent downward toward the gum side, after bending for a length, it is bent toward the inclined molar side, then it is bent upward to form the first petal bending, the first petal bending is used as a force applying structure, after the first petal bending is bent, it is inclined and bent from the top end to the inclined molar and the gum side, leaves a distance exceeding the inclined molar, and then is bent upward to form the second petal bending and is inserted into the buccal tube on the inclined molar;

[0015] S4: by narrowing the opening of the first petal bending, the second petal bending is driven to pull the inclined molar to be vertical and move toward the normal tooth adjacent to the inclined molar.

[0016] Optionally, in S2;

[0017] The brackets and the buccal tube are fixed and pasted on the center point of the tooth crown by the bonding resin for orthodontics.

[0018] Optionally, in S3;

[0019] The first petal bending and the second petal bending are U-shaped structures.

[0020] Optionally, in S4;

[0021] The narrowing of the opening of the first petal bending is realized by clamping the two sides of the first petal bending by the orthodontic wire clamp, the opening of the first petal bending is clamped to be small, and each time the opening is close to 1mm until the opening is closed.

[0022] Alternatively, the first petal curve opening is reduced by setting a skin chain spring at the opening, and the two sides of the first petal curve are forced to make the opening of the first petal curve reduce by 1mm each time until it is closed.

[0023] In a third aspect, a mounting system of the device for using petal curve mesial movement to tilt molars is provided, comprising:

[0024] A target detection unit is configured to determine the position of the mesial tilted tooth and the tilt angle of the patient;

[0025] A base fixing unit is configured to sequentially paste and fix brackets on the buccal side of the normal teeth of the patient, and then paste and fix buccal tubes on the buccal side of the tilted molars of the patient;

[0026] An overall fastening unit is configured to fix the steel wire corrector into the brackets on the buccal side of the teeth from the third molar / second molar on the normal side, and fix the steel wire corrector through the brackets until the normal teeth adjacent to the mesial tilted molar, then bend the steel wire corrector downward toward the gingival side, bend a length, then bend toward the tilted molar side, then bend upward to form a first petal curve, the first petal curve acts as a force applying structure, and after the first petal curve is bent, the top end of the first petal curve is tilted and bent toward the tilted molar and the gingival side, a distance beyond the tilted molar is left, then bend upward, and finally bend back to the tilted molar to form a second petal curve and insert into the buccal tube on the tilted molar;

[0027] An orthodontic action unit is configured to drive the second petal curve to move the tilted molar vertically and toward the normal tooth adjacent to the tilted molar by reducing the opening of the first petal curve.

[0028] The present application has at least the following beneficial effects:

[0029] The present application sets a first petal curve, which mainly functions to facilitate the clinical closing of the gap, gently stress the teeth, and avoid unnecessary root absorption and bone absorption caused by excessive force. The two bends toward the gingival side function to vertically move the molar, while avoiding the tilted molar from tilting more mesially during the mesial movement, causing difficulty in movement. The second petal curve is inserted mesially from the buccal tube or ring of the mesially tilted molar, which increases the length and elasticity of the arch wire, further avoids excessive force, and facilitates the positioning of the arch wire. The present application has obvious effects on the overall mesial movement of the molar and is feasible and convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the prior art and the present application, the following will briefly introduce the drawings required in the description of the prior art and the embodiments of the present application. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be derived from the provided drawings without creative labor.

[0031] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the conditions that the present application can be implemented. Any modification of the structure, change of the proportional relationship or adjustment of the size, which does not affect the effects that the present application can produce and the purposes that the present application can achieve, should still fall within the scope of the technical content disclosed by the present application.

[0032] Figure 1 The first perspective structural schematic diagram of an embodiment of the present application.

[0033] Label explanation:

[0034] 1, steel wire corrector; 2, bracket; 3, buccal tube; 4, first petal curve; 41, first bending part; 42, second bending part; 43, third bending part; 5, second petal curve; 51, fourth bending part; 52, fifth bending part; 53, sixth bending part. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0036] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. The terms "first", "second", "third", "fourth" and the like (if any) in the specification and claims of the present application and the above-mentioned drawings are intended to distinguish the objects referred to. For the scheme with time sequence flow, this kind of term expression does not have to be understood as describing a specific order or sequence, and for the scheme of device structure, this kind of term expression does not have to distinguish importance, position relationship, etc.

[0037] In addition, the terms "include", "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or equipment including a series of steps or units does not have to be limited to only those steps or units explicitly listed, but can also include other steps or units inherent to the process, method, product or equipment, or steps or units added based on the concept of the present application. Further optimization scheme.

[0038] As Figure 1 shown, a device for moving and uprighting the mesio-lingual tilted molar by petal curve, comprising a steel wire appliance 1, the steel wire appliance 1 is long strip structure, the steel wire appliance 1 is fixed from the distal tube on the normal side of the third molar to the distal tube on the normal tooth adjacent to the mesio-lingual tilted molar, the steel wire appliance 1 forms a first bend 41 parallel to the buccal side between the tilted molar and the tooth adjacent to the tilted molar, then forms a second bend 42 from the bottom end of the first bend 41 to the tilted molar, and forms a third bend 43 from the end of the second bend 42 close to the tilted molar to the direction away from the gum, the first bend 41, the second bend 42 and the third bend 43 form a first petal curve 4 between the tilted molar and the tooth adjacent to the tilted molar, the top end of the third bend 43 extends to the direction of the tilted molar and forms a fourth bend 51 beyond the tilted molar, and the fourth bend 51 is arranged at an angle to the gum, the bottom end of the fourth bend 51 extends upward to form a fifth bend 52, the top end of the fifth bend 52 extends to the direction of the tilted molar to form a sixth bend 53, the sixth bend 53 is arranged at an angle to the gum, and the sixth bend 53 passes through and is fixed to the buccal tube fixed on the tilted molar, the fourth bend 51, the fifth bend 52 and the sixth bend 53 form a second petal curve 5.

[0039] The steel wire appliance 1 described above adopts orthodontic special round wire 0.018 or 0.017*0.025 orthodontic special stainless steel square wire, in the installation process, according to the position of the mesio-lingual tilted molar of the patient, the steel wire appliance 1 is installed from the second molar / third molar on the normal side (the third molar is wisdom tooth, the installation is started from the third molar if there is wisdom tooth, and the installation is started from the second molar if there is no wisdom tooth), the steel wire appliance 1 is fixed in the bracket 2 preset on the tooth, the buccal tube 3 is preset and installed on the tilted molar, the steel wire appliance 1 is bent into a U-shaped first petal curve 4 structure (the opening is upward) and a U-shaped second petal curve 5 structure (the opening is toward the mesial side of the tilted molar) at the tooth adjacent to the tilted molar, the opening of the first petal curve 4 is reduced to pull and move the tilted molar vertically and close to the adjacent tooth.

[0040] The angle between the fourth bend 51 and the gum is 15°-30°. The angle between the sixth bend 53 and the gum is 15°-30°.

[0041] In order to prevent the steel wire appliance 1 from making the tilted molar more inclined during the movement of the molar, the fourth bend 51 and the sixth bend 53 are arranged at an angle to the gum, generally 15°-30°, and the best angle is 15°.

[0042] The fourth bending part 51 is 1mm beyond the distal side of the mesial inclined molar.

[0043] A method for installing the device for moving mesial inclined molar by petal curve into the oral cavity of a patient, the device being installed as described above;

[0044] The method comprises the following steps:

[0045] S 1: determining the position and angle of the mesial inclined tooth of the patient;

[0046] S2: sequentially attaching and fixing the bracket 2 on the buccal side of the normal tooth of the patient, and then attaching and fixing the buccal tube 3 on the buccal side of the inclined molar of the patient;

[0047] S3: fixing one end of the steel wire corrector 1 in the bracket 2 on the buccal side of the third molar / second molar of the normal side, and then fixing the steel wire corrector 1 through the bracket 2, until the normal tooth adjacent to the mesial inclined molar, then bending the steel wire corrector 1 downward toward the gum side, bending a length, then bending toward the inclined molar side, and then bending upward to form the first petal curve 4, the first petal curve 4 serving as a force applying structure, and then bending the first petal curve 4 from the top end toward the inclined molar and the gum side, leaving a distance beyond the inclined molar, and then bending upward to form the second petal curve 5 and inserting the second petal curve 5 into the buccal tube 3 on the inclined molar;

[0048] S4: reducing the opening of the first petal curve 4 to drive the second petal curve 5 to pull the inclined molar to be vertical while moving toward the normal tooth adjacent to the inclined molar.

[0049] S2 in;

[0050] The bracket 2 and the buccal tube 3 are fixed to the center point of the tooth crown by oral orthodontic adhesive resin.

[0051] S3 in;

[0052] The first petal curve 4 and the second petal curve 5 are U-shaped structures.

[0053] S4 in;

[0054] The reduction of the opening of the first petal curve 4 is achieved by clamping the two sides of the first petal curve 4 with an orthodontic wire clamp, reducing the opening of the first petal curve 4, and approaching 1mm each time until the opening is closed.

[0055] S4 in;

[0056] The reduction of the opening of the first petal curve 4 is achieved by setting a leather chain spring at the opening, applying force to the two sides of the first petal curve 4, reducing the opening of the first petal curve 4 by 1mm each time, and closing the opening.

[0057] The specific operation method for reducing the gap of the first petal curve 4 opening by the skin chain spring is the prior art, which is not described here.

[0058] The specific implementation of the above embodiment method is not limited to manual operation, but can also be based on a gradually mature auxiliary operation platform or even an automatic platform to further ensure the standardization of operation. Accordingly, an installation system of the above device for using the petal curve to move and tilt the molar is provided, comprising:

[0059] A target detection unit is configured to determine the position and angle of the tilted molar.

[0060] A basic fixing unit is configured to sequentially paste and fix the brackets on the buccal side of the normal teeth of the patient, and then paste and fix the buccal tube on the buccal side of the tilted molar of the patient.

[0061] A whole fastening unit is configured to fix the steel wire corrector into the brackets on the buccal side of the teeth from the third molar / second molar on the normal side, and fix the steel wire corrector through the brackets, until the normal teeth adjacent to the tilted molar, then bend the steel wire corrector downward toward the gum side, bend a length, then bend toward the tilted molar side, then bend upward to form a first petal curve, the first petal curve as a force applying structure, after bending the first petal curve, bend from the top end of the first petal curve to the tilted molar and the gum side, leave a distance beyond the tilted molar, then bend upward, and finally bend back to the tilted molar to form a second petal curve and insert into the buccal tube on the tilted molar.

[0062] An orthodontic action unit is configured to drive the second petal curve to pull the tilted molar vertically while moving toward the normal teeth adjacent to the tilted molar by reducing the opening of the first petal curve.

[0063] Of course, the controller can also coordinate the above units to automatically and orderly complete the standardized operation.

[0064] The above several specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in some embodiments.

[0065] The technical features of the above embodiments can be combined in any way (as long as the combination of technical features does not exist contradictory), in order to make the description simple, not all possible combinations of technical features in the above embodiments are described; these embodiments not explicitly written are also considered as the scope of the present disclosure.

[0066] The application is specifically and in detail described above through general description and specific embodiments. It should be noted that, without departing from the concept of the application, it is obvious that the specific embodiments can be deformed and improved, and these all belong to the protection scope of the application. Therefore, the protection scope of the application patent should be subject to the appended claims.

Claims

1. A device for moving an inclined molar by means of a petal-shaped bend, characterized in that: The orthodontic appliance includes a long, narrow wire brace. The wire brace is fixed starting from a groove on the third molar on the normal side and extending to a groove on a normal tooth adjacent to the mesial inclined molar. The wire brace forms a first bend parallel to the buccal side of the tooth between the inclined molar and its adjacent teeth, facing towards the gingiva. A second bend is then formed from the bottom of the first bend towards the inclined molar, and a third bend is formed at the end of the second bend near the inclined molar, moving away from the gingiva. The first, second, and third bends... The bend forms a first petal curve between the inclined molar and its adjacent teeth. The top of the third bend extends toward the inclined molar and beyond it to form a fourth bend, which is angled to the gingiva. The bottom of the fourth bend extends upward to form a fifth bend. The top of the fifth bend extends toward the inclined molar to form a sixth bend, which is angled to the gingiva. The sixth bend passes through and is fixed to the buccal tube fixed on the inclined molar. The fourth, fifth, and sixth bends form a second petal curve.

2. The device for moving an inclined molar using a petal-shaped mesial movement according to claim 1, characterized in that: The wire orthodontic appliance uses 0.018mm orthodontic round wire or 0.017*0.025mm orthodontic stainless steel square wire.

3. The device for moving an inclined molar by means of a petal-shaped curve according to claim 1, characterized in that: The angle between the fourth bend and the gum is 15°-30°.

4. The device for moving an inclined molar using petal-shaped mesial movement according to claim 1, characterized in that: The angle between the sixth bend and the gum is 15°-30°.

5. The device for moving an inclined molar using a petal-shaped mesial movement according to claim 1, characterized in that: The fourth bend extends 1 mm beyond the distal side of the mesial inclined molar.

6. A method for installing the device for moving the tilted molar using petal-shaped mesial movement as described in claim 1, characterized in that, include: S1: Determine the position and angle of the patient's mesial tilted teeth; S2: Apply and fix brackets to the buccal side of the patient's normal teeth in sequence, and then apply and fix buccal tubes to the buccal side of the patient's tilted molars. S3: Starting from the molar on the normal side, fix one end of the wire brace in the bracket on the buccal side of the tooth, and fix the wire brace through the bracket until it is fixed to the normal tooth of the adjacent inclined molar. Then bend the wire brace downward towards the gum line, bend it for a certain length, then bend it towards the inclined molar side, and then bend it upward to form the first petal curve. The first petal curve is used as the force-applying structure. After the first petal curve is bent, bend it from its tip towards the inclined molar and the gum line, leaving a distance beyond the inclined molar before bending it upward. Finally, bend it back towards the inclined molar to form the second petal curve and insert it into the buccal tube on the inclined molar. S4: By narrowing the opening of the first petal curve, the second petal curve pulls the tilted molar vertically while moving towards the normal tooth adjacent to the tilted molar.

7. The installation method of the device for moving the tilted molar using petal-shaped mesial movement according to claim 6, characterized in that: In S2; The brackets and buccal tubes are fixed to the center point of the tooth crown using orthodontic adhesive resin.

8. The installation method of the device for moving the tilted molar using petal-shaped mesial movement according to claim 7, characterized in that: In S3; The first and second petal curves have a U-shaped structure.

9. The installation method of the device for moving the tilted molar using petal-shaped mesial movement according to claim 8, characterized in that: In S4; The opening of the first petal curve is reduced by clamping the two sides of the first petal curve with orthodontic wire clamps, making the opening of the first petal curve smaller, and moving it closer by 1mm each time, until the opening is closed; Alternatively, the opening of the first petal can be reduced by placing a leather chain spring at the opening, applying force to both sides of the first petal to reduce the opening by 1mm each time until it is closed.

10. An installation system for the device of claim 1 that utilizes petal-shaped mesial movement of tilted molars, characterized in that, include: The target detection unit is used to determine the position and tilt angle of the patient's mesial tilted teeth; The basic fixation unit is used to attach and fix brackets sequentially on the buccal side of the patient's normal teeth, and then attach and fix buccal tubes on the buccal side of the patient's inclined molars. The overall fastening unit is used to fix one end of the wire braces starting from the third / second molar on the normal side, sequentially into the brackets on the buccal side of the teeth, and fix the wire braces through the brackets until it is fixed to the normal tooth of the adjacent inclined molar. Then, the wire braces are bent downwards towards the gingiva, bent for a certain length, then bent towards the inclined molar side, and then bent upwards to form the first petal curve. The first petal curve serves as the force-applying structure. After the first petal curve is bent, it is bent from its tip towards the inclined molar and the gingiva side, leaving a distance beyond the inclined molar before bending upwards. Finally, it is bent back towards the inclined molar to form the second petal curve and inserted into the buccal tube on the inclined molar. The orthodontic action unit is used to pull the tilted molar vertically by narrowing the opening of the first petal curve and driving the second petal curve to move it toward the normal tooth adjacent to the tilted molar.

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