A convenient and comfortable transparent mouthpiece type pushing and grinding distal upright device for missing teeth

Abstract

The utility model discloses a kind of transparent mouthguard type push missing tooth side molar distal upright device, which is convenient and comfortable, comprising a transparent mouthguard and a double-curved tongue spring that covers all teeth in the interproximal space. One end of the double-curved tongue spring is fixed to one end of the transparent mouthguard near the interproximal space, and the other end of the double-curved tongue spring is a pressure application end. The transparent mouthguard covers the clinical crown, and while ensuring aesthetics and comfort, the force transmission is more direct, the fixation force is more stable, and the anchorage control is more controllable. The double-curved tongue spring achieves precise and efficient molar movement through a local force application mechanism, significantly shortening the time required for interproximal space expansion before implantation. The device uses digital oral scanning combined with 3D printing technology to quickly produce the orthodontic device. Doctors do not need to perform complex operations to customize the device. It is suitable for patients who do not need orthodontic treatment or cannot accept full orthodontic treatment. The transparent mouthguard in the device uses domestic hot plastic film and domestic orthodontic materials, which is cost-effective and has a short preparation period.

Description

Technical Field

[0001] This utility model relates to a medical device for oral use, and more particularly to a convenient and comfortable transparent brace-type distal upright device for pushing back missing teeth on the molar side. Background Technology

[0002] In clinical orthodontics, the loss of edentulous space is a common problem, especially during oral development in adults and children. Common causes of edentulous space loss include caries, dental trauma, and congenital tooth loss. In adults, after tooth loss, the adjacent teeth on either side tilt towards the gap, causing malocclusion and affecting chewing function and aesthetics. In children, premature loss of deciduous teeth or loss due to dental trauma often leads to the loss of eruption space for the successor permanent tooth germ, especially early loss of deciduous molars, which can prevent the permanent teeth from erupting normally or even cause impaction. Early loss of deciduous molars is particularly serious because it not only affects the eruption sequence of permanent teeth but also leads to abnormal development of the jawbone and masticatory muscles, and may even cause mandibular facial deformities.

[0003] Furthermore, the loss of edentulous space presents challenges for the design and placement of dental implants. Since malocclusion can affect the shape of the dental arch and the position of adjacent teeth, direct implant treatment in such cases may lead to implant failure due to excessive or unbalanced occlusal forces, or insufficient implant space due to adjacent teeth tilting towards the gap, making implant restoration impossible. Therefore, before implant treatment, orthodontic treatment is usually necessary to correct the malocclusion, restore the normal dental arch shape, and provide suitable conditions for implantation.

[0004] For early-stage edentulous space loss, space expansion techniques can be used. The traditional and conventional method for expanding implant space is full-mouth orthodontic treatment, which takes 1.5-3 years and is expensive. Therefore, it is suitable for patients who have orthodontic needs, but not for patients with relatively well-aligned teeth, those who do not need orthodontic treatment, or those who are unsuitable for orthodontic treatment. Clinically, about 80% of adult patients with missing teeth do not need orthodontic treatment or are unsuitable for full-mouth orthodontic treatment, ultimately having to choose to grind down the intact teeth on both sides of the edentulous space to expand the space. To address this, scholars at home and abroad have proposed various solutions, commonly including conventional fixed orthodontic appliances, cantilever beams, implants, and surgical vertical methods. He Xushun et al. from Sun Yat-sen University have introduced a removable appliance. They used a self-curing resin base to create the removable appliance for retention, assisting in the slight movement of posterior molars in patients with missing deciduous molars. However, firstly, this type of appliance is large, complex to manufacture, and causes significant discomfort, making it difficult to promote and popularize on a large scale; secondly, this method is suitable for children with mild tooth movement and relatively porous bone in their mixed dentition, but for patients who need a larger range of movement and have dense bone, it can cause the side effect of labial tipping of the anterior teeth.

[0005] Currently, the following technical challenges remain in the field of pre-implantation orthodontic space expansion:

[0006] First: How to improve the efficiency of implantation gap expansion while shortening the treatment cycle;

[0007] Second: How to reduce patients' treatment costs and improve the accessibility of treatment methods;

[0008] Third: How to design more comfortable and more compliant orthodontic treatment plans to reduce the feeling of foreign objects and discomfort;

[0009] Fourth: How to control anchorage more precisely to avoid labial tipping of anterior teeth or other adverse side effects.

[0010] Therefore, there is an urgent need for an efficient, comfortable, and economical orthodontic device that is suitable for patients who only require gap widening and can effectively avoid the shortcomings of existing technologies. Utility Model Content

[0011] In view of the above-mentioned shortcomings in the current technology, this utility model provides a convenient and comfortable transparent dental brace-type distal upright device for pushing up missing teeth on the molar side.

[0012] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0013] A convenient and comfortable transparent brace-type distal upright device for pushing back missing molars includes a transparent brace that covers all the teeth mesial to the missing tooth and a hyperbolic lingual spring; one end of the hyperbolic lingual spring is fixed to the end of the transparent brace near the missing tooth, and the other end of the hyperbolic lingual spring is the pressure end.

[0014] As a preferred embodiment of this utility model, the diameter of the hyperbolic tongue spring is 0.02 inches.

[0015] As a preferred embodiment of this utility model, one end of the hyperbolic tongue spring is fixed to the distal end of the transparent braces by orthodontic base resin material.

[0016] The technical advantages of this invention are as follows: Expanding edentulous spaces can also be achieved through full-mouth orthodontic treatment. While fixed orthodontics or clear aligners can be chosen, these methods are relatively expensive and not cost-effective for early mixed dentition cases where only space expansion is needed. Traditional spiral expanders and removable aligners have long, indirect force transmission paths, resulting in lower efficiency and problems such as difficulty in anchorage control and device loosening. This invention, however, uses transparent aligners to cover the clinical crowns, achieving both aesthetics and comfort while providing more direct force transmission, more stable fixation, and more controllable anchorage. A hyperboloid lingual spring local force application mechanism enables precise and efficient molar movement, significantly shortening the time required for pre-implantation space expansion. Furthermore, the transparent clear aligners are aesthetically pleasing, cause minimal foreign body sensation, and improve patient compliance, facilitating oral hygiene maintenance during treatment. This device utilizes digital intraoral scanning combined with 3D printing technology to quickly manufacture orthodontic appliances. Doctors can customize them without complicated procedures, making it suitable for patients who do not require orthodontic treatment or cannot undergo full-mouth orthodontic treatment. Furthermore, the transparent aligners in this device use domestically produced heat-shrinkable film and domestically produced orthodontic materials, resulting in low cost and a short preparation cycle. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the usage of a convenient and comfortable transparent dental brace-type distal upright device for pushing back missing teeth.

[0018] Figure 2 This is a schematic diagram of the structure of a convenient and comfortable transparent dental brace-type distal upright device for pushing back missing teeth and molars.

[0019] In the diagram: 1—clear braces; 2—hyperbolic tongue reed; 3—molar; 4—gap between missing teeth. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 As shown, a convenient and comfortable transparent brace-type distal upright device for lateral molars with missing teeth includes a transparent brace 1 that covers all the teeth mesial to the missing tooth and a hyperboloid lingual spring 2. One end of the hyperboloid lingual spring 2 is fixed to the end of the transparent brace 1 near the missing tooth. In this embodiment, one end of the hyperboloid lingual spring 2 is fixed distally to the transparent brace 1 by orthodontic base resin material. The other end of the hyperboloid lingual spring 2 is the pressure end, and the diameter of the hyperboloid lingual spring 2 is 0.02 inches. After one end of the hyperboloid lingual spring 2 is fixed to the transparent brace 1, the hyperboloid lingual spring 2 forms a lever arm.

[0022] Using 3D printing technology, a precise three-dimensional model of the patient's oral cavity is obtained. If additional retention is needed, retention attachments can be quickly designed using professional orthodontic design software. These dental models are then printed using a 3D printer, and the clear aligner templates are vacuum-formed onto the dental models using a thermoforming method, resulting in a transparent aligner 1 that fits the patient's teeth. Depending on the application of force, one end of a hyperboloid lingual spring 2 is fixed to the distal end of the clear aligner 1 near the gap using orthodontic base resin material. Alternatively, the other end of the hyperboloid lingual spring 2 can be attached to the distal end of the clear aligner 1 near the gap using other adhesive methods. The patient simply wears the clear aligner 2, with the other end of the hyperboloid lingual spring 2 applying pressure to the molar 3 distal to the gap, thus completing the orthodontic treatment. Because the clear aligner 1 is inconspicuous, aesthetically pleasing, comfortable, and promotes good oral hygiene, the treatment duration is short, chairside time is minimal, and no special procedures are required from the dentist, it is easily adopted and widely used. Clear braces 1 cover all the teeth mesial to the gap and can be used as retainers. At the same time, oral orthodontic design software can be used to add retention attachments to strengthen the anchorage. This will not cause labial tipping of the anterior teeth when the distal molars are moved.

[0023] The bending method of the hyperboloid lingual spring 2: The hyperboloid lingual spring 2 is continuously bent using 0.02-inch Australian wire. The use of fine wire and the increase in the length of the force-applying archwire through a spiral ensures that the force is gentle and lasting after the force-applying arm is inserted. The force applied should be appropriate and not excessive; approximately 120-150g is suitable for pushing the molar 3 backward. It is fixed distal to the transparent brace 1 using orthodontic base resin material. When the force-applying arm is not under force, it should be parallel to the alveolar ridge. When in working condition, the force-applying arm should be placed gingivally to the mesial contact point of the impacted tooth, forming a 90° angle with the long axis of the tooth, as close as possible to the center of the molar's resistance.

[0024] Example: Patient Liang, female, 27 years old, referred from the implant department to the orthodontics department, requesting uprighting of left lower posterior tooth 37. Clinical examination: permanent dentition, mild to moderate crowding of both maxillary and mandibular dentitions, grade II overbite. Grade II overjet, midline of both maxillary and mandibular dentitions basically centered. Oral hygiene is fair, no obvious gingival redness or swelling. Teeth 16 and 17 are missing, tooth 18 is moved forward, tooth 37 is tilted forward, tooth 38 remains. Currently, the coronal space of tooth 36 is 4.5 mm. Diagnosis: malocclusion, missing teeth. The patient requested only to widen the space of tooth 36 to allow for implant restoration; without addressing the malocclusion, overbite, etc. Treatment plan: 1. Extract tooth 38 and implant a post distal to tooth 38 or use a removable appliance to traction tooth 37 distally upright. Due to the patient's fear of post implantation, a removable appliance was chosen, such as... Figure 1 As shown. The orthodontic treatment lasted 4 months, and the gap between the 36 missing teeth was 4 mm. Figure 2 As shown, transplantation and restoration were performed using the planting department.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A convenient and comfortable transparent brace-type distal upright device for pushing back missing teeth on the molar side, characterized in that: It includes a transparent dental crown (1) that covers all the teeth in the mesial region of the gap and a hyperbolic tongue spring (2); one end of the hyperbolic tongue spring (2) is fixed to the end of the transparent dental crown (1) near the gap, and the other end of the hyperbolic tongue spring (2) is the pressure end.

2. The convenient and comfortable transparent brace-type distal upright device for pushing back missing teeth as described in claim 1, characterized in that: The diameter of the hyperbolic tongue (2) is 0.02 inches.

3. A convenient and comfortable transparent brace-type distal upright device for pushing back missing teeth on the molar side, as described in claim 1 or 2, characterized in that: One end of the hyperbolic tongue spring (2) is fixed to the distal end of the transparent braces (1) by the orthodontic base resin material.

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