Composite quadruple-effect appliance

Abstract

The invention discloses a composite quadruple-effect appliance which comprises a base part and an invisible part, the base part comprises an upper base part and a lower base part, the upper base part comprises an upper base, a spiral expansion device, an extraoral arch and a retention card, the lower base part comprises a lower base, a spiral expansion device and a retention card, and the invisible part comprises an upper invisible part and a lower invisible part. The invisible orthodontic appliance is suitable for early-stage II-type malocclusion patients with high-angle maxillary protrusion and mandibular retraction, anterior teeth of the upper jaw and the lower jaw can be depressed while the mandible is guided forwards, extension of lower posterior teeth and reverse rotation of the mandible are prevented, so that the face appearance of the high-angle small jaw is improved, meanwhile, teeth are aligned, and the appearance of the high-angle small jaw is improved. And the final orthodontic treatment purpose is achieved.

Description

Technical Field

[0001] The invention relates to the field of dental medical instruments, and in particular to a composite four-effect appliance. Background Art

[0002] Juvenile skeletal Class II high-angle malocclusion is a common disease in clinical practice. It is characterized by insufficient mandibular development, which is caused by the uncoordinated development of the upper and lower jaws. The specific reason is that the mandibular development is severely insufficient, the vertical growth of the condyle is weak, and the vertical growth of the posterior alveolar of the maxilla and mandible and the forward growth of the maxilla are strong, which together lead to the posterior and inferior rotation of the mandible (clockwise rotation), and the posterior and inferior rotation of the mandible further aggravates the vertical abnormality. Usually accompanied by narrow dental arches, manifested as mandibular retraction, increased ANB angle, and distal relationship of molars. In addition to sagittal relationship abnormalities, it is also accompanied by vertical relationship abnormalities and abnormal growth and development.

[0003] The capitula activator is usually used to control the vertical height of the maxillary anterior and posterior teeth and the protrusion of the maxillary anterior teeth, while advancing the mandible and inducing the development of the mandible. Patients with skeletal Class II high-angle malocclusion usually have deep overbite of the anterior teeth. If there is a deep overbite of the anterior teeth, after the mandible is advanced, the coverage of the upper and lower anterior teeth decreases, and a gap appears between the upper and lower posterior teeth. After the appliance is removed, the lower posterior teeth will be elongated until all the posterior teeth are in contact to stabilize the occlusal relationship. Since the elongation of the lower posterior teeth will cause the mandible to rotate backward and downward, thereby aggravating the vertical abnormality, it is necessary to lower the lower posterior teeth through other means such as bone screws in the later stage, which increases the difficulty of later correction, so it is necessary to lower the lower anterior teeth. However, since patients with skeletal Class II high-angle malocclusion usually have narrow dental arches, it is necessary to expand the arch while aligning the anterior teeth and lowering the lower anterior teeth. However, a single capitula activator or invisible braces cannot achieve multi-dimensional tooth control, so it is necessary to combine the functions of the two. However, for patients with high-angle mandibular retrusion and deep anterior overbite, the treatment goal is to achieve anterior-superior rotation of the mandible (counterclockwise rotation) and reduce the height of the lower 1 / 3 of the face. Therefore, the current capitula activator is not conducive to the treatment of skeletal Class II high-angle mandibular retrusion with deep anterior overbite. Summary of the invention

[0004] In view of the above-mentioned deficiencies existing in the background technology, the object of the present invention is to provide a composite four-effect orthodontic appliance, which performs quantitative arch expansion through the base part at night, controls the vertical height of the upper and lower mandibular posterior teeth, controls the protrusion of the upper front teeth, and guides the mandible forward; during the day, the upper and lower mandibular anterior teeth are preliminarily aligned through the invisible part, and the lower front teeth are lowered at the same time; the base part and the invisible part are used alternately day and night, and the lower front teeth are aligned and lowered while the mandible is expanded to guide it forward, thereby preventing the elongation of the lower posterior teeth, thereby controlling the occlusal plane, reducing the posterior and inferior rotation of the mandible, and gradually aligning the teeth while realizing the anterior-superior rotation of the mandible (counterclockwise rotation) to achieve the orthodontic treatment effect.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A composite four-effect orthodontic appliance, comprising: A base part and an invisible part, the base part includes an upper base part and a lower base part, the upper base part includes an upper base, a spiral expander, an extraoral bow and a retention card, the lower base part includes a lower base, a spiral expander and a retention card, and the spiral expanders of the upper base part and the lower base part are respectively independently arranged, the invisible part includes an upper invisible part and a lower invisible part, the upper invisible part and the lower invisible part both include a plurality of shell-shaped invisible orthodontic appliances, and the widening amount of each shell-shaped invisible orthodontic appliance of the invisible part on the left and right sides of the midline corresponds to the widening amount of the pitch of the spiral expander of the base part.

[0006] Furthermore, the upper base includes an upper body, an upper maxillary pad and an upper incisor cap, the upper body is connected to the upper maxillary pad and the upper incisor cap, the upper maxillary pad covers the maxillary posterior teeth, the upper incisor cap covers the incisal end and labial side of the maxillary anterior teeth, and the inner side of the upper incisor cap reserves a space position for an upper invisible part to move the upper incisor, and the lower base includes a lower body, a mandibular pad and a lower incisor cap, the lower body is connected to the mandibular pad and the lower incisor cap, the mandibular pad covers the mandibular anterior teeth or posterior teeth, the lower incisor cap covers the incisal end and labial side of the mandibular anterior teeth, and the inner side of the lower incisor cap reserves a space position for an invisible part to move the lower incisor.

[0007] Furthermore, the maxillary pad and the mandibular pad are provided with upper guide bevels and lower guide bevels at corresponding positions respectively, and the maxillary pad is located at the rear side of the mandibular pad. When the base part is worn and bitten, the upper guide bevel of the maxillary pad pushes the lower guide bevel of the mandibular pad to move forward.

[0008] Furthermore, the extraoral arch of the upper base portion includes a base segment and a traction segment, and the base segment is embedded in the upper base of the upper base portion.

[0009] Furthermore, the upper invisible part is provided with a first jaw pad, and the lower invisible part is provided with a second jaw pad. The first jaw pad and the second jaw pad are respectively provided with a first guide bevel and a second guide bevel at corresponding positions. The first jaw pad is located on the rear side of the second jaw pad. When the invisible part is worn and bitten, the first guide bevel of the first jaw pad pushes the second guide bevel of the second jaw pad to move forward, and the upper and lower base parts match the mandibular forward guide amount of the upper and lower invisible parts.

[0010] Furthermore, one or more shell-shaped invisible braces of the invisible part cover the surface of the tooth crown.

[0011] Compared with the prior art, the present invention has the following beneficial effects: A composite four-effect orthodontic appliance with a base part and an invisible part that are used alternately day and night. The base part can not only effectively expand the width of the posterior part of the dental arch and guide the mandible forward, but also prevent the elongation of the upper and lower posterior teeth. The invisible part can lower the lower front teeth and preliminarily align the lower front teeth at the same time. It can control the vertical height of the front and rear teeth and control the protrusion of the front teeth while reducing the posterior and inferior rotation of the mandible, and can also achieve the anterior and superior rotation of the mandible (counterclockwise rotation). This orthodontic appliance has four functions in one, namely, expanding the arch, guiding the mandible forward, lowering the lower front teeth and aligning the teeth. It can more effectively improve adolescent skeletal Class II high-angle malocclusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a front structural schematic diagram of the base part of the present invention when it is in use; Figure 2 It is a side structural schematic diagram of the base part of the present invention when in use; Figure 3 It is a schematic diagram of the top view of the upper base portion of the present invention; Figure 4 It is a schematic diagram of the top view of the lower base support portion of the present invention; Figure 5 It is a schematic diagram of the side structure of the invisible part of the present invention when it is in use; In the figure: 1-base part; 2-invisible part; 3-upper base part; 4-lower base part; 5-upper base; 6-lower base; 7-spiral expander; 8-extraoral arch; 9-retention card; 10-upper invisible part; 11-lower invisible part; 12-upper body; 13-maxillary pad; 14-upper incisor cap; 15-lower body; 16-mandibular pad; 17-lower incisor cap; 18-upper guide bevel; 19-lower guide bevel; 20-shell invisible appliance; 21-base section; 22-traction section; 23-first jaw pad; 24-second jaw pad; 25-first guide bevel; 26-second guide bevel. DETAILED DESCRIPTION

[0014] The following is combined with Figure 1-5 The present invention is further described in detail. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] The present invention provides a composite four-effect appliance, which mainly includes a base part 1 and an invisible part 2, wherein the base part includes an upper base part 3 and a lower base part 4, and the invisible part 2 includes an upper invisible part 10 and a lower invisible part 11. The appliance is optimized and modified on the basis of a traditional muscle activator, which is a base structure with upper and lower jaws integrated. The appliance designed by the present invention adopts the base part and the invisible part to be used alternately day and night; the upper base part includes an upper base 5, a spiral expander 7, an extraoral bow 8 and a retention card 9, and the lower base part 4 includes a lower base 6, a spiral expander 7 and a retention card 9; the spiral expander 7 adjusts and controls the amount of expansion by rotating a screw rod. The extraoral bow 8 includes a base section 21 and a traction section 22, and the base section 21 is embedded in the upper base 5 of the upper base part 3. The extraoral bow 8 can also be designed to be detachable, and the extraoral bow 8 tube is embedded in the upper base 5 of the upper base part 3. When the extraoral bow 8 is not in use, it can be removed, and the base part 1 is used to complete the arch expansion and guide the mandible forward. The upper base 5 includes a maxillary pad 13 covering the maxillary posterior teeth, an upper incisor cap 14 covering the incisal end and lip side of the maxillary anterior teeth, and an upper body 12 connecting the maxillary pad 13 and the upper incisor cap 14. The lower base 6 includes a mandibular pad 16 covering the mandibular anterior teeth or posterior teeth, a lower incisor cap 17 covering the incisal end and lip side of the mandibular anterior teeth, and a lower body 15 connecting the mandibular pad and the lower incisor cap. The inner side of the upper and lower incisor caps reserves the space for the upper and lower invisible parts to move the upper and lower incisors. The upper jaw pad 13 is located at the rear side of the mandibular pad 16, and the upper jaw pad 13 and the mandibular pad 16 are respectively provided with an upper guide bevel 18 and a lower guide bevel 19 at corresponding positions. When the base part is worn and bitten, the upper guide bevel 18 of the upper jaw pad 13 pushes the lower guide bevel 19 of the mandibular pad 16 to move forward. The upper invisible part is provided with a first mandibular pad 23, and the lower invisible part is provided with a second mandibular pad 24. The first mandibular pad 23 and the second mandibular pad 24 are respectively provided with a first guide bevel 25 and a second guide bevel 26 at corresponding positions. The first mandibular pad 23 is located at the rear side of the second mandibular pad 24. When the invisible part is worn and bitten, the first guide bevel 25 of the first mandibular pad 23 pushes the second guide bevel 26 of the second mandibular pad 24 to move forward, and the upper and lower base parts match the mandibular anterior guide amount of the upper and lower invisible parts. The upper invisible part 10 and the lower invisible part 11 both include a plurality of shell-shaped invisible braces 20, which are all integrally formed of polymer materials. The shell-shaped invisible braces 20 cover the surface of the tooth crown and adjust the position of the teeth by progressive force. The shell-shaped invisible braces 20 need to be replaced every 5 to 14 days. And the widening amount of each shell-shaped invisible brace 20 on the left and right sides of the midline matches the widening amount of the pitch of the spiral expander of the base part.

[0016] Retention clips or interproximal hooks can be added to the upper and lower mandibular pads or upper and lower incisor caps to increase the retention of the upper and lower base parts to prevent them from falling off when worn. Hyperbolic lip bows can be added to the upper and lower incisor caps to prevent the upper and lower anterior teeth from tilting toward the lip.

[0017] The prefabricated extraoral arch tube can be embedded in the upper base of the upper base part, and the base section of the extraoral arch is then inserted into the extraoral arch tube to achieve a movable connection. The patient can remove the extraoral arch during the day and only wear the upper base part, which increases comfort and aesthetics.

[0018] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A composite four-effect appliance, characterized in that: include: A base portion (1) and an invisible portion (2), wherein the base portion (1) comprises an upper base portion (3) and a lower base portion (4), wherein the upper base portion (3) comprises an upper base portion (5), a spiral expander (7), an extraoral arch (8) and a retention clip (9), and the lower base portion (4) comprises a lower base portion (6), a spiral expander (7) and a retention clip (9), and the spiral expanders (7) of the upper base portion (3) and the lower base portion (4) are respectively independently arranged, and the invisible portion (2) comprises an upper invisible portion (10) and a lower invisible portion (11), wherein the upper invisible portion (10) and the lower invisible portion (11) each comprise a plurality of shell-shaped invisible orthodontic appliances (20), and the width of each shell-shaped invisible orthodontic appliance (20) of the invisible portion (2) on the left and right sides of the midline corresponds to the width of the pitch of the spiral expander (7) of the base portion (1).

2. The composite four-effect appliance according to claim 1, characterized in that: The upper base (5) comprises an upper body (12), an upper jaw pad (13) and an upper incisor cap (14); the upper body (12) is connected to the upper jaw pad (13) and the upper incisor cap (14); the upper jaw pad (13) covers the maxillary posterior teeth; the upper incisor cap (14) covers the incisal ends and labial sides of the maxillary anterior teeth; and the upper incisor cap (14) has a reserved inner side for an upper invisible portion (10) to move the upper incisor; the lower base (6) comprises a lower body (15), a lower jaw pad (16) and a lower incisor cap (17); the lower body (15) is connected to the lower jaw pad (16) and the lower incisor cap (17); the lower jaw pad (16) covers the mandibular anterior teeth or posterior teeth; the lower incisor cap (17) covers the incisal ends and labial sides of the mandibular anterior teeth; and the lower incisor cap (17) has a reserved inner side for an invisible portion (11) to move the lower incisor.

3. The composite four-effect appliance according to claim 2, characterized in that: The maxillary pad (13) and the mandibular pad (16) are provided with an upper guide bevel (18) and a lower guide bevel (19) at corresponding positions, respectively; the maxillary pad (13) is located at the rear side of the mandibular pad (16); when the base portion is worn and bitten, the upper guide bevel (18) of the maxillary pad (13) pushes the lower guide bevel (19) of the mandibular pad (16) to move forward.

4. The composite four-effect appliance according to claim 1, characterized in that: The extraoral arch (8) of the upper base portion (3) comprises a base section (21) and a traction section (22), and the base section (21) is embedded in the upper base (5) of the upper base portion (3).

5. The composite four-effect appliance according to claim 1, characterized in that: The upper invisible part is provided with a first jaw pad (23), and the lower invisible part is provided with a second jaw pad (24); the first jaw pad (23) and the second jaw pad (24) are provided with a first guide bevel (25) and a second guide bevel (26) at corresponding positions, respectively; the first jaw pad (23) is located at the rear side of the second jaw pad (24); when the invisible part is worn and bitten, the first guide bevel (25) of the first jaw pad (23) pushes the second guide bevel (26) of the second jaw pad (24) to move forward, and the upper and lower base parts match the lower jaw leading amount of the upper and lower invisible parts.

6. The composite four-effect appliance according to claim 1, characterized in that: One or more shell-shaped invisible orthodontic appliances (20) of the invisible part (2) cover the surface of the tooth crown.

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