A composite four-effect orthodontic appliance

Abstract

The present invention discloses a composite four-effect orthodontic appliance, comprising: a base portion and an invisible portion. The base portion includes an upper base portion and a lower base portion. The upper base portion includes an upper base, a screw expansion arch, an extraoral arch and a retention clip. The lower base portion includes a lower base, a screw expansion arch and a retention clip. The invisible portion includes an upper invisible portion and a lower invisible portion. Both the upper invisible portion and the lower invisible portion comprise a plurality of shell-shaped invisible orthodontic appliances. The present invention is applicable to patients with early Class II high-angle maxillary protrusion and mandibular retrusion malocclusion. While guiding the mandible forward, it can depress the upper and lower anterior teeth, prevent the elongation of the lower posterior teeth, and reverse-rotate the mandible, thereby improving the high-angle small-chin face appearance, and at the same time aligning the teeth to achieve the ultimate orthodontic treatment goal.

Description

Technical Field

[0001] The present invention relates to the field of dental medical devices, and specifically, to a composite four-effect orthodontic appliance. Background Art

[0002] Adolescent skeletal Class II high-angle malocclusion is a relatively common disease clinically. Its characteristics are insufficient mandibular development, which is caused by the disharmonious 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, while the vertical growth of the posterior alveolar of the upper and lower jaws and the forward growth of the maxilla are stronger, jointly resulting in the posterior and inferior rotation of the mandible (clockwise rotation). The posterior and inferior rotation of the mandible further aggravates the vertical abnormality. Usually, it is accompanied by a narrow dental arch, manifested as mandibular retrusion, an increased ANB angle, and a distal relationship of the molars. In addition to the abnormal sagittal relationship, it is also accompanied by abnormal vertical relationship and abnormal growth and development.

[0003] The headgear activator is usually used to control the vertical height of the anterior and posterior teeth of the maxilla and the protrusion of the anterior maxillary teeth, and at the same time, to lead the mandible forward to induce the development of the mandible. Patients with skeletal Class II high-angle malocclusion usually have deep overbite of the anterior teeth. If there is deep overbite of the anterior teeth, after leading the mandible forward, the overjet between the upper and lower anterior teeth decreases, and there is a gap between the upper and lower posterior teeth. When the orthodontic appliance is removed, the lower posterior teeth will elongate until all the posterior teeth come into contact to stabilize the occlusal relationship. Since the elongation of the lower posterior teeth will cause the posterior and inferior rotation of the mandible, thus aggravating the vertical abnormality, and in the later stage, other means such as bone screws are needed to depress the lower posterior teeth, increasing the difficulty of later correction. Therefore, it is necessary to depress the lower anterior teeth. However, since patients with skeletal Class II high-angle malocclusion usually also have a narrow dental arch, it is necessary to expand the arch while synchronously aligning the anterior teeth and depressing the lower anterior teeth. However, neither a single headgear activator nor an invisible orthodontic appliance can achieve multi-dimensional tooth control. Therefore, it is necessary to combine the functions of the two. However, for patients with high-angle mandibular retrusion accompanied by deep overbite of the anterior teeth, the treatment goal is to achieve the anterior and superior rotation (counterclockwise rotation) of the mandible and reduce the height of the lower third of the face. Therefore, the current headgear activator is not beneficial for treating patients with skeletal Class II high-angle mandibular retrusion accompanied by deep overbite of the lower anterior teeth. Summary of the Invention

[0004] In view of the above deficiencies in the background art, the object of the present invention is to provide a composite four-effect orthodontic appliance, which quantitatively expands the arch through the base part at night, controls the vertical height of the upper and lower posterior teeth, controls the protrusion of the upper anterior teeth, guides the mandible forward, and initially aligns the upper and lower anterior teeth through the invisible part during the day, while depressing the lower anterior teeth. By alternately using the base part and the invisible part day and night, while expanding the arch and guiding the mandible forward, the lower anterior teeth are aligned and depressed, preventing the elongation of the lower posterior teeth, thereby controlling the occlusal plane and reducing the posterior and inferior rotation of the mandible. While achieving the anterior and superior rotation (counterclockwise rotation) of the mandible, the teeth are gradually aligned to achieve the orthodontic treatment effect.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A composite four-effect orthodontic appliance, comprising:

[0007] 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 screw arch expander, an extraoral arch and a retention clip, the lower base part includes a lower base, a screw arch expander and a retention clip, and the screw arch expanders of the upper base part and the lower base part are independently provided respectively. The invisible part includes an upper invisible part and a lower invisible part, and both the upper invisible part and the lower invisible part include a plurality of shell-shaped invisible orthodontic appliances. Moreover, 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 pitch widening amount of the screw arch expander of the base part.

[0008] Furthermore, the upper base includes an upper main body, an upper occlusal pad and an upper incisor cap. The upper main body connects the upper occlusal pad and the upper incisor cap. The upper occlusal pad covers the upper posterior teeth. The upper incisor cap covers the incisal ends and labial surfaces of the upper anterior teeth. And a space position for the upper invisible part to move the upper incisors is reserved inside the upper incisor cap. The lower base includes a lower main body, a lower occlusal pad and a lower incisor cap. The lower main body connects the lower occlusal pad and the lower incisor cap. The lower occlusal pad covers the lower anterior teeth or posterior teeth. The lower incisor cap covers the incisal ends and labial surfaces of the lower anterior teeth. And a space position for the lower invisible part to move the lower incisors is reserved inside the lower incisor cap.

[0009] Furthermore, the upper occlusal pad and the lower occlusal pad are respectively provided with an upper guiding inclined plane and a lower guiding inclined plane at corresponding positions. The upper occlusal pad is located behind the lower occlusal pad. When wearing the base part and biting, the upper guiding inclined plane of the upper occlusal pad pushes the lower guiding inclined plane of the lower occlusal pad to move forward.

[0010] Furthermore, the extraoral arch of the upper base part includes a base segment and a traction segment, and the base segment is embedded in the upper base of the upper base part.

[0011] Furthermore, a first jaw pad is provided on the upper invisible part, and a second jaw pad is provided on the lower invisible part. The first jaw pad and the second jaw pad are respectively provided with a first guiding inclined surface and a second guiding inclined surface at corresponding positions. The first jaw pad is located at the rear side of the second jaw pad. When the invisible parts are worn and the teeth are occluded, the first guiding inclined surface of the first jaw pad pushes the second guiding inclined surface of the second jaw pad to move forward, and the anterior guiding amounts of the upper and lower base parts and the upper and lower invisible parts are matched.

[0012] Furthermore, one or more shell-shaped invisible orthodontic appliances of the invisible part cover the tooth crown surface.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] A composite four-effect orthodontic appliance that alternately uses the base part and the invisible part day and night is adopted. The base part can not only effectively expand the width of the posterior part of the dental arch, guide the mandible forward, but also prevent the elongation of the upper and lower posterior teeth. The invisible part can depress the lower anterior teeth and initially align the lower anterior teeth while controlling the vertical height of the anterior and posterior teeth, controlling the protrusion of the anterior teeth and reducing the posterior and inferior rotation of the mandible, and can also achieve the anterior and superior rotation (counterclockwise rotation) of the mandible. This orthodontic appliance combines four functions of arch expansion, mandible forward guidance, lower anterior teeth depression, and tooth alignment, and can more effectively improve the skeletal class II high-angle malocclusion in adolescents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for description in the embodiments or the prior art.

[0016] Figure 1 It is a front structural schematic diagram of the base part of the present invention in the use state;

[0017] Figure 2 It is a side structural schematic diagram of the base part of the present invention in the use state;

[0018] Figure 3 It is a top view structural schematic diagram of the upper base part of the present invention;

[0019] Figure 4 It is a top view structural schematic diagram of the lower base part of the present invention;

[0020] Figure 5 It is a side structural schematic diagram of the invisible part of the present invention in the use state;

[0021] In the figure: 1 - base portion; 2 - invisible portion; 3 - upper base portion; 4 - lower base portion; 5 - upper base; 6 - lower base; 7 - screw expansion appliance; 8 - extraoral arch; 9 - retention clip; 10 - upper invisible portion; 11 - lower invisible portion; 12 - upper main body; 13 - upper occlusal pad; 14 - upper incisor cap; 15 - lower main body; 16 - lower occlusal pad; 17 - lower incisor cap; 18 - upper guiding inclined plane; 19 - lower guiding inclined plane; 20 - shell - type invisible orthodontic appliance; 21 - base segment; 22 - traction segment; 23 - first occlusal pad; 24 - second occlusal pad; 25 - first guiding inclined plane; 26 - second guiding inclined plane. Detailed implementation mode

[0022] The following combines with the attached Figures 1-5 The present invention will be further described in detail. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0023] The present invention provides a composite four-effect orthodontic appliance, which mainly includes a base part 1 and an invisible part 2. 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. This orthodontic appliance is optimized and modified on the basis of the traditional activator. The traditional activator is a base structure integrating the upper and lower jaws. The orthodontic appliance designed in the present invention uses the base part and the invisible part alternately day and night. The upper base part includes an upper base 5, a screw expansion arch appliance 7, an extraoral arch 8, and a retention clip 9. The lower base part 4 includes a lower base 6, a screw expansion arch appliance 7, and a retention clip 9. The screw expansion arch appliance 7 adjusts and controls the arch expansion amount by rotating the screw rod. The extraoral arch 8 includes a base section 21 and a traction section 22. The base section 21 is embedded in the upper base 5 of the upper base part 3. The extraoral arch 8 can also be designed as a detachable type. The extraoral arch 8 tube is embedded in the upper base 5 of the upper base part 3. When the extraoral arch 8 is not used, it can be disassembled, and the base part 1 is used to complete arch expansion and guiding the mandible forward. The upper base 5 includes an upper occlusal pad 13 covering the upper posterior teeth, an upper incisor cap 14 covering the incisal edge and the labial surface of the upper anterior teeth, and an upper main body 12 connecting the upper occlusal pad 13 and the upper incisor cap 14. The lower base 6 includes a lower occlusal pad 16 covering the lower anterior or posterior teeth, a lower incisor cap 17 covering the incisal edge and the labial surface of the lower anterior teeth, and a lower main body 15 connecting the lower occlusal pad and the lower incisor cap. Space positions for the upper and lower invisible parts to move the upper and lower incisors are reserved inside the upper and lower incisor caps. The upper occlusal pad 13 is located behind the lower occlusal pad 16, and an upper guiding inclined surface 18 and a lower guiding inclined surface 19 are respectively provided at corresponding positions on the upper occlusal pad 13 and the lower occlusal pad 16. When the base part is worn and occluded, the upper guiding inclined surface 18 of the upper occlusal pad 13 pushes the lower guiding inclined surface 19 of the lower occlusal pad 16 to move forward. The upper invisible part is provided with a first occlusal pad 23, and the lower invisible part is provided with a second occlusal pad 24. A first guiding inclined surface 25 and a second guiding inclined surface 26 are respectively provided at corresponding positions on the first occlusal pad 23 and the second occlusal pad 24. The first occlusal pad 23 is located behind the second occlusal pad 24. When the invisible part is worn and occluded, the first guiding inclined surface 25 of the first occlusal pad 23 pushes the second guiding inclined surface 26 of the second occlusal pad 24 to move forward, and the mandibular anterior guiding amounts of the upper and lower base parts and the upper and lower invisible parts are matched. The upper invisible part 10 and the lower invisible part 11 both include a plurality of shell-shaped invisible orthodontic appliances 20. The plurality of shell-shaped invisible orthodontic appliances 20 are integrally formed of a polymer material. The shell-shaped invisible orthodontic appliance 20 covers the surface of the tooth crown and adjusts the tooth position by applying progressive force. The shell-shaped invisible orthodontic appliance 20 needs to be replaced every 5 to 14 days. And the widening amount of each shell-shaped invisible orthodontic appliance 20 on the left and right sides of the midline is matched with the pitch widening amount of the screw expansion arch appliance of the base part.

[0024] Retention clips or interdental hooks can be added to the maxillary and mandibular occlusal pads or maxillary and mandibular incisor caps to increase the retention of the upper and lower base portions and prevent them from falling off during wear. A double-curved labial bow can be added to the maxillary and mandibular incisor caps to prevent the labial inclination of the maxillary and mandibular anterior teeth.

[0025] A prefabricated extraoral arch tube can be embedded in the upper base of the upper base portion, and the base portion 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 portion, increasing comfort and aesthetics.

[0026] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A composite four-effect orthodontic appliance, characterized in that, Comprising: A base portion (1) and an invisible portion (2), the base portion (1) includes an upper base portion (3) and a lower base portion (4), the upper base portion (3) includes an upper base (5), a screw expansion arch appliance (7), an extraoral arch (8) and a retention clip (9), the lower base portion (4) includes a lower base (6), a screw expansion arch appliance (7) and a retention clip (9), wherein the screw expansion arch appliances (7) of the upper base portion (3) and the lower base portion (4) are independently arranged respectively, and the pitch widening amount of each screw expansion arch appliance (7) is adjusted respectively; the invisible portion (2) includes an upper invisible portion (10) and a lower invisible portion (11), both the upper invisible portion (10) and the lower invisible portion (11) comprise a plurality of shell-shaped invisible orthodontic appliances (20), and the widening amount of each shell-shaped invisible orthodontic appliance (20) on the left and right sides of the midline corresponds to the pitch widening amount of the screw expansion arch appliance (7) of the base portion (1); The upper base (5) and the lower base (6) are respectively provided with an upper occlusal pad (13) and a lower occlusal pad (16), the upper occlusal pad (13) and the lower occlusal pad (16) are respectively provided with an upper guiding inclined surface (18) and a lower guiding inclined surface (19) at the occlusal contact position, the upper occlusal pad (13) is located at the rear side of the lower occlusal pad (16), and when occluding, the upper guiding inclined surface (18) pushes the lower guiding inclined surface (19) to move forward; The upper invisible portion is provided with a first occlusal pad (23), the lower invisible portion is provided with a second occlusal pad (24), the first occlusal pad (23) and the second occlusal pad (24) are respectively provided with a first guiding inclined surface (25) and a second guiding inclined surface (26) at the corresponding positions, the first occlusal pad (23) is located at the rear side of the second occlusal pad (24), when wearing the invisible portion and occluding, the first guiding inclined surface (25) of the first occlusal pad (23) pushes the second guiding inclined surface (26) of the second occlusal pad (24) to move forward, and the anterior guiding amount of the lower jaw of the upper and lower base portions and the upper and lower invisible portions is matched; Quantitative arch expansion is carried out through the base portion at night to control the vertical height of the upper and lower posterior teeth, control the protrusion degree of the upper anterior teeth, and guide the lower jaw forward. During the day, the upper and lower anterior teeth are initially aligned through the invisible portion, and at the same time, the lower anterior teeth are depressed. By alternately using the base portion and the invisible portion day and night, while expanding the arch and guiding the lower jaw forward, the lower anterior teeth are aligned and depressed.

2. The composite four-effect orthodontic appliance according to claim 1, wherein The upper base (5) includes an upper main body (12) and an upper incisor cap (14), the upper main body (12) connects the upper occlusal pad (13) and the upper incisor cap (14), the upper occlusal pad (13) covers the upper posterior teeth, the upper incisor cap (14) covers the incisal ends and the labial surfaces of the upper anterior teeth, and a space position for the upper invisible portion (10) to move the upper incisors is reserved inside the upper incisor cap (14), The lower base (6) includes a lower main body (15) and a lower incisor cap (17), the lower main body (15) connects the lower occlusal pad (16) and the lower incisor cap (17), the lower occlusal pad (16) covers the lower anterior teeth or posterior teeth, the lower incisor cap (17) covers the incisal ends and the labial surfaces of the lower anterior teeth, and a space position for the lower invisible portion (11) to move the lower incisors is reserved inside the lower incisor cap (17).

3. The composite four-effect orthodontic appliance according to claim 1, wherein The extraoral bow (8) of the upper base portion (3) includes a base segment (21) and a traction segment (22), and the base segment (21) is embedded in the upper base (5) of the upper base portion (3).

4. The composite four-effect orthodontic appliance according to claim 1, wherein One or more shell-shaped invisible orthodontic appliances (20) of the invisible portion (2) cover the tooth crown surface.

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