Implanted tooth traction device and method

Abstract

The invention discloses an embedded tooth traction device and method, and belongs to the technical field of orthodontic tools. The device comprises a bonding ring, a combined ring and a stress application unit, the bonding ring, the combined ring and the stress application unit are integrally made of orthodontic ligature wires, the bonding ring can be tightly attached according to the radian of the surface of an embedded tooth, the combined ring comprises a plurality of continuous ligature rings and can be adjusted in direction according to a preset track, and the stress application unit adopts TP elastic cotton threads or NITI wires to provide traction force. The traction method comprises the steps of surgical exposure of embedded teeth, sufficient hemostasis, acid etching and bonding, direction adjustment, surgical suture, closed traction, stress application, revival adjustment and the like. The problems that an existing traction accessory is low in sealing degree, prone to falling off, uncontrollable in traction direction, difficult in closed traction suturing and capable of damaging periodontium are solved, the traction accessory has the advantages of being firm in bonding, accurate in traction, minimally invasive, friendly, low in cost and convenient and fast to operate, the traction success rate of the embedded tooth can be effectively increased, and pain of a patient is relieved.

Description

Technical Field

[0001] This invention relates to the field of orthodontic tools, and more specifically, to a device and method for traction of impacted teeth. Background Technology

[0002] Prior to the 1970s, the treatment of impacted teeth was primarily led by surgeons, with the vast majority of impacted teeth being removed surgically. With the continuous improvement of orthodontic diagnosis and treatment, and the gradual maturation of impacted tooth traction techniques, orthodontists' involvement in impacted tooth treatment has significantly increased, playing a decisive role in the traction effect. Currently, the assessment of impacted tooth location, determination of treatment difficulty, and selection of treatment methods have become core components of orthodontic diagnostic and treatment plans.

[0003] Surgical exposure combined with orthodontic traction is one of the mainstream treatment methods for impacted teeth. The operation of bonding attachments is mainly divided into one-step bonding method and two-step bonding method: the one-step bonding method can complete the attachment bonding on the same day after surgery, and can immediately apply traction force, which has the advantages of convenience and time-saving, but there are problems such as difficulty in keeping the bonding surface dry and bleeding that can affect the bonding quality; the two-step bonding method requires the dressing to be removed 7 to 10 days after surgery before the attachment bonding is performed, and is mostly used for cases with low horizontal impaction and deep fenestration wounds.

[0004] The selection, successful bonding, and control of the traction direction are crucial for the successful traction of impacted teeth. Existing traction accessories mainly include prefabricated brackets, lingual clips, and stainless steel wire traction devices hand-bent by orthodontists. However, these accessories all have significant drawbacks: First, the thickness and shape of prefabricated brackets and lingual clips are fixed, making it impossible to precisely match the natural curvature of the impacted tooth surface. They have low fit with the exposed tooth surface, poor shear resistance, and are prone to detachment. After detachment, re-bonding and repeated window openings are required, increasing patient discomfort and causing additional tissue damage and bleeding. Second, once prefabricated brackets, lingual clips, and hand-bent traction devices are bonded, the traction direction cannot be adjusted, leading to uncontrolled impacted tooth traction. First, the traction trajectory is singular, and the traction process is uncontrollable. Second, prefabricated brackets and lingual buckles have a certain thickness, while the gums have limited flexibility. During traction, the gums are easily compressed, causing inflammation or recession, especially for deeply impacted teeth. In clinical practice, closed traction (suturing the exposed wound after bonding the attachments) is often used to reduce the adverse effects on the gums. However, due to the thickness of the attachments, tension-reducing sutures are required during suturing, which can easily cause the wound to extend and expand, and make suturing difficult. Third, hand-bent traction devices rely on the doctor's operating experience, and their precision is insufficient and their consistency is poor, making it difficult to guarantee the stability of the traction effect. Summary of the Invention

[0005] The present invention provides an impacted tooth traction device and method, which addresses the deficiencies of the prior art by providing an impacted tooth traction device that is simple in structure, economical and practical, has a high degree of fit with the exposed tooth surface, a high bonding success rate, a certain degree of self-directional adjustability, causes less damage to the gums, and is easy to apply force to.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An impacted tooth traction device includes an adhesive ring, a combination ring, and a force-applying unit. The adhesive ring and the combination ring are integrally made of orthodontic ligature wire. The adhesive ring is used to fix and connect to the bonding surface of the impacted tooth, and the shape and curvature of the adhesive ring can be adaptively adjusted according to the curvature of the bonding surface to achieve a tight fit with the bonding surface. The combination ring consists of multiple continuous ligature rings formed sequentially on the side of the adhesive ring away from the bonding surface. The combination ring and the force-applying unit are detachably connected. The force-applying unit is used to generate traction force to drive the impacted tooth to move, and the direction of the combination ring can be adjusted according to the preset movement trajectory of the impacted tooth.

[0008] Furthermore, the adhesive ring is formed by folding the orthodontic ligature wire in half, clamping the two ligature wires formed by the folding with a needle holder, and twisting them tightly. The combined ring is formed by continuously twisting and tightening the orthodontic ligature wire.

[0009] Furthermore, the number of combination rings is 5 to 6, and the threads of the adhesive ring and the combination ring are 3 to 4 strands.

[0010] Furthermore, the force-applying unit uses TP elastic cotton thread or NITI yarn; when the force-applying unit is TP elastic cotton thread, the traction force is generated through the contraction of the TP elastic cotton thread; when the force-applying unit is NITI yarn, the traction force is generated through the deformation and rebound force of the NITI yarn.

[0011] Furthermore, the orthodontic ligature wire is 0.3mm in diameter and has an initial length of 15cm. The length of the combination loop is selected according to the distance between the impacted tooth and the dental arch, and any excess length of the combination loop can be cut off.

[0012] A traction method for an impacted tooth traction device, characterized by comprising the following steps:

[0013] S1. Expose the bonding surface of the impacted tooth and perform hemostasis on the mucosa around the bonding surface.

[0014] S2. Etch the bonding tooth surface with enamel etchant, then rinse and thoroughly dry the bonding tooth surface until it is chalky white.

[0015] S3. Apply adhesive to the bonding tooth surface, blow it evenly with air, and then perform curing treatment.

[0016] S4. Apply fluid resin to the bonding tooth surface site, place the bonding ring of the impacted tooth traction device at the bonding tooth surface site, apply fluid resin to completely embed the bonding ring, and cure the fluid resin until it is completely cured. Verify the bonding reliability by pulling the combined ring.

[0017] S5. Adjust the direction of the combination ring according to the preset movement trajectory of the impacted tooth;

[0018] S6. Reposition and pull the gums together and suture to form a closed traction.

[0019] S7. Based on the number of exposed combination rings, cut the combination rings to the appropriate length, and connect the force-adding unit to the outermost combination ring.

[0020] S8. The impacted tooth is moved by the traction force generated by the force unit. During the follow-up visit, the distance between the combination ring and the bonding ring is adjusted according to the amount of movement of the impacted tooth and the number of exposed combination rings. The direction of the combination ring can be readjusted and the force unit can be replaced.

[0021] S9. After the impacted tooth is fully exposed, replace the lingual buckle or bracket and continue traction until the impacted tooth is pulled into place.

[0022] Furthermore, in step S1, the hemostasis treatment is performed by cauterizing the mucosa around the bonding tooth surface site with an electrocautery knife, or by gently pressing the mucosa around the bonding tooth surface site with an adrenaline-soaked cotton ball.

[0023] Furthermore, in step S5, the specific operation of adjusting the direction of the combination ring includes: using the first holding needle to clamp the combination ring close to the adhesive ring to fix the adhesive ring and prevent the adhesive ring from falling off; using the second holding needle to clamp the target combination ring and bend it to the preset direction so that the traction force is directly applied to the preset movement trajectory of the impacted tooth.

[0024] Furthermore, in step S7, the connection method between the force-applying unit and the combination ring is as follows: TP elastic cotton thread or NITI filament is passed through the outermost combination ring, so that the force of the force-applying unit is transmitted to the bonding ring through the combination ring, and then acts on the impacted tooth.

[0025] Furthermore, the curing time in step S3 is 10 seconds, and the curing time in step S4 is 40 seconds.

[0026] The beneficial effects of this invention are as follows:

[0027] 1. The adhesive ring of the present invention can adaptively adjust its shape and curvature according to the curvature and size of the impacted tooth surface, fits tightly with the tooth surface, significantly improves the adhesive retention and shear resistance, effectively reduces the risk of attachment detachment, avoids secondary bonding and repeated window opening operations caused by detachment, and reduces tissue damage, bleeding and patient treatment pain.

[0028] 2. The combination ring of the present invention has a certain degree of elasticity and rigidity, and can flexibly adjust its direction according to the preset movement trajectory of the impacted tooth. This solves the problem of fixed traction direction of existing attachments, so that the traction force can be accurately applied to the target trajectory, allowing the impacted tooth to move in the expected direction, significantly improving the traction success rate and treatment effect.

[0029] 3. This invention is made of 0.3mm orthodontic ligature wire in one piece. The overall thickness is thin, and there is no need for tension-reducing sutures during closed traction, which avoids the problems of wound extension and enlargement and suturing difficulties. At the same time, it reduces the pressure on the gums, reduces the risk of complications such as inflammation and recession, and has a good protective effect on periodontal tissues.

[0030] 4. The present invention has a simple structure, uses common materials for preparation, and is inexpensive; in addition, the adjustability of the adhesive ring allows it to adapt to impacted tooth surfaces of different shapes and curvatures. The manual bending preparation method does not require complex molds, is easy to operate, and has better consistency and stability than traditional manual bending devices.

[0031] 5. The length of the combination ring in this invention can be cut and adapted according to the distance between the impacted tooth and the dental arch. During follow-up visits, the distance of the combination ring and the traction direction can be flexibly adjusted according to the amount of tooth movement. The force unit can also be easily replaced. The entire treatment process is flexible and requires no complicated operation, effectively shortening the treatment cycle and improving treatment efficiency. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings:

[0033] Figure 1 This is a schematic diagram illustrating the installation and use of an impounded tooth traction device according to the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of an impacted tooth traction device according to the present invention.

[0035] In the diagram: 1-Adhesive ring; 2-Combination ring; 3-Force unit; 4-Adhesive tooth surface site. Detailed Implementation

[0036] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0037] like Figures 1 to 2As shown, this invention provides an impacted tooth traction device. The device includes an adhesive ring 1, a combination ring 2, and a force-applying unit 3. The adhesive ring 1 and the combination ring 2 are integrally made from the same 0.3mm orthodontic ligature wire. The tools required for the preparation process include a needle holder, a dental probe, and a wire cutter. The force-applying unit 3 is a TP elastic cotton thread or a NITI filament, used to provide the force required for traction.

[0038] Specifically, take a 0.3mm orthodontic ligation wire about 15cm long, fold it in half, place a dental probe at the fold, and clamp the two folded ligation wires near the probe with a needle holder. Tighten the ligation wire by rotating it to form 3-4 threads, thus creating the adhesive ring 1. This adhesive ring 1 is used to fix and connect to the bonding surface of the impacted tooth. Its shape and curvature can be adaptively adjusted according to the actual size and curvature of the bonding surface to ensure a tight fit and improve the bonding retention effect.

[0039] After the adhesive ring 1 is made, a dental probe is placed between the two ligature wires of the adhesive ring 1. The two ligature wires near the probe are then clamped with a needle holder and tightened in a circular motion to form a 3-4 threaded ligature ring. This process is repeated to prepare 5-6 consecutive ligature rings. These 5-6 ligature rings together constitute the combination ring 2 (all ligature rings formed subsequently, except for the adhesive ring 1, belong to the combination ring 2). The length of the combination ring 2 can be selected according to the distance between the impacted tooth and the dental arch. The shorter the distance from the dental arch, the closer the combination ring 2 is to the adhesive ring 1; the farther the distance from the dental arch, the farther the combination ring 2 is from the adhesive ring 1. Excess length of the combination ring 2 can be cut off with fine wire cutters.

[0040] The bonding ring 1 is fixed to the bonding surface of the impacted tooth using adhesive material. The combination ring 2 and the force-applying unit 3 are detachably connected. Specifically, TP elastic cotton thread or NITI wire is passed through the outermost ligation loop of the combination ring 2. When the force-applying unit 3 is TP elastic cotton thread, it generates traction force through its contraction. When the force-applying unit 3 is NITI wire, it generates traction force through its deformation and rebound force. The traction force is transmitted to the impacted tooth sequentially through the combination ring 2 and the bonding ring 1, driving the impacted tooth to move. At the same time, because the orthodontic ligation wire has appropriate elasticity and rigidity, the combination ring 2 can adjust its direction according to the preset movement trajectory of the impacted tooth, so that the traction force can be applied to the impacted tooth more precisely.

[0041] The specific steps for using the above-mentioned impacted tooth traction device to traction impacted teeth are as follows:

[0042] S1. Fully expose the bonding site 4 of the impacted tooth through surgical operation, and perform hemostasis treatment on the mucosa around the bonding site 4. The hemostasis method can be to cauterize the mucosa around the bonding site 4 with an electrocautery knife, or to gently press the mucosa around the bonding site 4 with an adrenaline cotton swab to ensure that the bonding site 4 is dry and free of bleeding.

[0043] S2. Use enamel etching agent to etch the treated bonding tooth surface at point 4. After etching, rinse the bonding tooth surface and blow it dry thoroughly with a tool until the bonding tooth surface appears chalky white to ensure the subsequent bonding effect.

[0044] S3. Apply enamel adhesive to the chalky white bonding surface site 4, blow the adhesive evenly with gas, and then perform light curing treatment for 10 seconds to allow the adhesive to initially cure.

[0045] S4. Apply a small amount of fluid resin to the bonding site 4. Place the prepared adhesive ring 1 of the impacted tooth traction device on the bonding site 4. Continue applying fluid resin until the adhesive ring 1 is completely embedded. Then, perform light curing treatment for 40 seconds until the fluid resin is completely cured. After curing, gently pull the combination ring 2 to verify the bonding reliability between the adhesive ring 1 and the tooth surface. After confirming successful bonding, proceed to the next step.

[0046] S5. Adjust the direction of the combination ring 2 according to the preset movement trajectory of the impacted tooth. The specific operation is as follows: Use the first needle holder to clamp the combination ring 2 close to the adhesive ring 1 to ensure that the adhesive ring 1 is fixed and prevent it from falling off. Then use the second needle holder to clamp the target adjustment combination ring 2 and bend it to the direction that matches the preset movement trajectory so that the traction force can be directly applied to the preset movement trajectory of the impacted tooth.

[0047] S6. Reposition and suture the exposed gums to form a closed traction, reducing adverse effects on the gums.

[0048] S7. Based on the number of combined rings 2 exposed after suturing, cut the combined rings 2 to the appropriate length using fine wire cutters. Connect the force-applying unit 3 to the outermost combined ring 2, that is, connect the TP elastic cotton thread or NITI thread to the combined ring 2 by passing it through, so that the force of the force-applying unit 3 can be transmitted to the bonding ring 1 through the combined ring 2, and then act on the impacted tooth.

[0049] S8. The impacted tooth is moved by the traction force generated by the force-applying unit 3. When the patient returns for a follow-up visit, the distance between the combination ring 2 and the bonding ring 1 is gradually shortened according to the actual amount of movement of the impacted tooth and the number of exposed combination rings 2. The direction of the combination ring 2 can be adjusted appropriately again according to the actual movement trajectory of the impacted tooth. At the same time, the force-applying unit 3 is replaced to ensure that the traction effect is continuously stable.

[0050] S9. After the impacted tooth is fully exposed, replace this device with a lingual buckle or bracket, and continue to pull the impacted tooth until it is successfully pulled into place, thus completing the traction treatment.

[0051] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A device for traction of impacted teeth, characterized in that: The device includes an adhesive ring, a combination ring, and a force-applying unit. The adhesive ring and the combination ring are integrally made from orthodontic ligature wire. The adhesive ring is used to fix and connect to the bonding surface of the impacted tooth, and the shape and curvature of the adhesive ring can be adaptively adjusted according to the curvature of the bonding surface to achieve a tight fit with the bonding surface. The combination ring consists of multiple continuous ligature rings formed sequentially on the side of the adhesive ring away from the bonding surface. The combination ring and the force-applying unit are detachably connected. The force-applying unit is used to generate traction force to drive the impacted tooth to move, and the direction of the combination ring can be adjusted according to the preset movement trajectory of the impacted tooth.

2. The device for traction of impacted teeth according to claim 1, characterized in that: The adhesive ring is formed by folding the orthodontic ligature wire in half, clamping the two ligature wires formed by the folding with a needle holder, and twisting them tightly. The combined ring is formed by continuously twisting the orthodontic ligature wire in a circular motion.

3. The device for traction of an impacted tooth according to claim 2, characterized in that: The number of the combination rings is 5 to 6, and the threads of the adhesive ring and the combination rings are 3 to 4 strands.

4. The device for traction of impacted teeth according to claim 1, characterized in that: The force-applying unit is TP elastic cotton thread or NITI yarn; when the force-applying unit is TP elastic cotton thread, traction force is generated by the contraction of the TP elastic cotton thread; when the force-applying unit is NITI yarn, traction force is generated by the deformation and rebound force of the NITI yarn.

5. The device for traction of impacted teeth according to claim 1, characterized in that: The orthodontic ligature wire has a specification of 0.3mm and an initial length of 15cm. The length of the combination ring is selected according to the distance between the impacted tooth and the dental arch, and any excess length of the combination ring can be cut off.

6. The traction method of an impacted tooth traction device according to any one of claims 1-5, characterized in that... Includes the following steps: S1. Expose the bonding surface of the impacted tooth and perform hemostasis on the mucosa surrounding the bonding surface; S2. Etch the bonding surface with enamel etchant, then rinse and thoroughly dry the bonding surface until it is chalky white; S3. Apply adhesive to the bonding surface, blow it evenly with air, and then cure it; S4. Apply fluid resin to the bonding surface, place the bonding ring of the impacted tooth traction device on the bonding surface, apply more fluid resin until the bonding ring is completely embedded, cure it until the fluid resin is completely cured, and verify the bonding reliability by pulling the combined ring. S5. Adjust the direction of the combination ring according to the preset movement trajectory of the impacted tooth; S6. Reposition and pull the gums together and suture to form a closed traction; S7. Cut the combination ring to a suitable length according to the number of exposed combination rings, and connect the force unit on the outermost combination ring. S8. The impacted tooth is moved by the traction force generated by the force-applying unit. During the follow-up visit, the distance between the combination ring and the bonding ring is adjusted according to the amount of movement of the impacted tooth and the number of exposed combination rings. The direction of the combination ring can be adjusted again and the force-applying unit can be replaced. S9. After the impacted tooth is fully exposed, the lingual buckle or bracket is replaced and traction is continued until the impacted tooth is pulled into place.

7. The traction method of the impacted tooth traction device according to claim 6, characterized in that: In step S1, the hemostasis treatment is performed by cauterizing the mucosa around the bonding tooth surface site with an electrocautery knife, or by gently pressing the mucosa around the bonding tooth surface site with an adrenaline-soaked cotton ball.

8. The traction method of the impacted tooth traction device according to claim 1, characterized in that: In step S5, the specific operation of adjusting the direction of the combination ring includes: using the first holding needle to clamp the combination ring close to the adhesive ring to fix the adhesive ring and prevent the adhesive ring from falling off; using the second holding needle to clamp the target combination ring and bend it to the preset direction so that the traction force is directly applied to the preset movement trajectory of the impacted tooth.

9. The traction method of the impacted tooth traction device according to claim 1, characterized in that: In step S7, the connection between the force-applying unit and the combination ring is as follows: TP elastic cotton thread or NITI filament is passed through the outermost combination ring, so that the force of the force-applying unit is transmitted to the adhesive ring through the combination ring, and then acts on the impacted tooth.

10. The traction method of the impacted tooth traction device according to claim 1, characterized in that: The curing time in step S3 is 10 seconds, and the curing time in step S4 is 40 seconds.

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