Invisible orthodontic appliance with lingual occlusal plate and invisible orthodontic appliance assembly

Abstract

The utility model relates to an invisible appliance with a lingual occlusal plate and an invisible appliance assembly, the invisible appliance with the lingual occlusal plate comprises an appliance body, a connecting piece, a connecting piece and a connecting piece, the appliance body comprises a lower jaw appliance and an upper jaw appliance; the lingual side occlusal plate assembly comprises a first lingual side occlusal plate arranged on the inner side of a dental arch of the lower jaw appliance and a second lingual side occlusal plate arranged on the inner side of a dental arch of the upper jaw appliance, and the first lingual side occlusal plate is provided with a first guide slope inclining towards a rear tooth area; the second lingual occlusal plate is provided with a second guide inclined surface which is inclined towards the front tooth area; the first guide inclined plane and the second guide inclined plane are oppositely arranged, during occlusion, the first guide inclined plane and the second guide inclined plane are in butt joint, the lower jaw part is guided to move forwards relatively through the lower jaw appliance, and the upper jaw part is guided to move backwards relatively through the upper jaw appliance. Compared with the prior art, side effects of vertical stimulation are not generated, and bad tongue habits can be corrected in an auxiliary mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of oral medicine, and in particular relates to an invisible orthodontic appliance with a lingual occlusal plate and an invisible orthodontic appliance component. Background Art

[0002] Facial protrusion in children and adolescents (skeletal Class II malocclusion) is a common facial deformity in my country. Among them, children with the high-angle growth type (skeletal Class II high-angle type) are currently difficult to treat with orthodontic treatment. Genetic factors and nasopharyngeal airway obstruction diseases can both cause high-angle facial protrusion. With the increasing incidence of nasopharyngeal airway obstruction diseases such as adenoid hypertrophy, the incidence of high-angle facial protrusion in adolescents is on the rise. Currently, the main treatments for this type of skeletal Class II high-angle adolescents include traditional functional appliances such as Activator and Twin-block, and invisible guided functional correction (A6 guided occlusal plate from Angelalign, MA guided flanks from Invisalign, etc.).

[0003] Traditional functional appliances, such as Activator and Twin-block, use a plastic base to hold the mandibular teeth in a protrusive position, thereby guiding mandibular growth forward. Because the plastic base that restricts mandibular recession is located on the occlusal surface, it must be of sufficient thickness to provide a stable locking effect. These appliances not only stimulate mandibular growth in the sagittal direction but also increase the length of the mandibular body and ascending ramus in the vertical direction. For adolescents with skeletal Class II low-angle gait, the vertical growth stimulation provided by the appliance is beneficial, resulting in virtually no side effects and excellent treatment results. However, patients with high-angle gait already have excessive vertical growth, and the vertical growth stimulation provided by traditional appliances is detrimental. Furthermore, patients with high-angle gait are more susceptible to vertical growth stimulation than those with low or even gait. Therefore, traditional mandibular advancement treatment is less effective in improving growth in adolescents with high-angle gait. Furthermore, the retention of traditional functional appliances relies on stable tooth position, so tooth position cannot be adjusted simultaneously with mandibular growth stimulation during treatment. Because the mandible and mandibular teeth grow forward simultaneously, children experience difficulty biting their posterior teeth during treatment (professionally known as open bite), which affects chewing. This condition can last for a year until functional treatment is completed and fixed treatment begins. Because traditional functional appliances cannot adjust tooth position during treatment, the total treatment time is prolonged.

[0004] The design concept of the existing invisible anterior guiding functional appliance is the same as that of the traditional functional appliance. It opens the bite vertically and restricts the lower teeth and jaw in the protruded position, stimulating the growth of the mandible sagittally and vertically. The occlusal pads used to guide the mandible forward are mainly located in the premolar area (there are also wings of Invisalign company located on the buccal sides of the premolars and molars). In the molar area of all existing types of invisible anterior guiding appliances, the upper and lower teeth are not in contact, and it is easy to occur vertical growth of the teeth and jaw. This kind of growth is beneficial to the low-angle skeletal class II, but harmful to the high-angle skeletal class II, and will exacerbate the vertical disharmony. On the other hand, compared with the traditional functional appliance, the invisible functional appliance can align the teeth at the same time and shorten the treatment time. However, due to the non-contact state in the molar area, the control of the molars is very poor. It can only provide space to align the teeth by arch expansion and proximal enamel removal, and cannot retract the anterior teeth to improve the protrusion, nor can it effectively distalize the molars. For patients with tooth protrusion, adjustment still needs to be done after the anterior guidance is completed.

[0005] Another side effect of traditional and invisible functional appliances: When the mandible is guided forward, the lower teeth are subjected to a forward thrust. After one year of functional treatment, the lower anterior teeth will show varying degrees of labial inclination (the labial inclination of the lower anterior teeth will be more obvious in invisible orthodontics due to the elasticity of the membrane). In the process of growth and development, children with high-angle skeletal class II have the habit of mouth breathing, and the tongue is located on the lingual side of the lower anterior teeth both usually and during swallowing. Therefore, the lower anterior teeth are already in the state of labial inclination. If the functional treatment further increases the labial inclination of the lower anterior teeth, it will increase the protrusion of the lower lip and damage the facial form.

[0006] To sum up, the current functional appliances have the following disadvantages: excessive vertical growth stimulation, long treatment time (unable to simultaneously complete distal movement of the dentition and retraction of the anterior teeth), and the side effect of labial inclination of the lower anterior teeth.

[0007] The "occlusion" in this article is a professional term in stomatology, and its English is occlusion. The character "牙合" is composed of the left and right parts of a single character, and it cannot be found in the common font library, so it is written separately as "牙合". Summary of the Invention

[0008] The purpose of the present utility model is to overcome the defects of the above-mentioned existing technologies and provide an invisible appliance with a lingual occlusal plate and an invisible appliance assembly.

[0009] The purpose of the present utility model can be achieved through the following technical solutions:

[0010] One of the technical solutions of the present utility model is to provide an invisible appliance with a lingual occlusal plate, including:

[0011] An appliance body for being sleeved on teeth, including a mandibular appliance and a maxillary appliance;

[0012] A lingual occlusal plate assembly, comprising a first lingual occlusal plate provided on the inner side of the dental arch of the mandibular appliance and a second lingual occlusal plate provided on the inner side of the dental arch of the maxillary appliance, wherein the first lingual occlusal plate is provided with a first guiding slope inclined toward the posterior teeth region, and the second lingual occlusal plate is provided with a second guiding slope inclined toward the anterior teeth region;

[0013] The first guiding slope is arranged opposite to the second guiding slope so that

[0014] During occlusion, the first guiding bevel is connected to the second guiding bevel, and the first lingual occlusal plate and the second lingual occlusal plate slide relative to each other along the connecting surface, thereby guiding the mandibular part to move forward relatively through the mandibular appliance and guiding the maxillary part to move backward relatively through the maxillary appliance.

[0015] In some specific embodiments, the first lingual occlusal plate and the second lingual occlusal plate are three-dimensional triangular in shape.

[0016] In some specific embodiments, the included angles between the first guiding bevel, the second guiding bevel and the occlusal surface are all less than 80°.

[0017] In some specific embodiments, the included angle between the first guiding slope and the occlusal surface is 70°, and the included angle between the second guiding slope and the occlusal surface is 70°.

[0018] In some specific embodiments, a plurality of small protrusions are provided on both the first guiding slope and the second guiding slope.

[0019] In some specific embodiments, the first lingual occlusal plate is located on the lingual side of the mandibular appliance relative to the canine area, and the second lingual occlusal plate is located on the lingual side of the maxillary appliance relative to the canine area.

[0020] In some specific embodiments, the first lingual occlusal plate is located on the lingual side of the mandibular appliance relative to the junction area between the canine and the first premolar;

[0021] The second lingual occlusal plate is located on the lingual side of the maxillary appliance relative to the junction area between the canine and the first premolar.

[0022] The second technical solution of the present invention is to provide an invisible braces assembly, comprising the invisible braces as described in one of the above technical solutions and a traction buckle, wherein the traction buckle is used to connect with the implant support in the mandibular posterior teeth area.

[0023] In some specific embodiments, the traction buckle is a structure that is wide at both ends and thin in the middle.

[0024] In some specific embodiments, the traction buckle is provided at the junction of the bilateral canines and premolars in the mandible.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) The retention and effectiveness of the lingual occlusal plate provided on the appliance body of the present invention do not depend on vertical occlusion. Therefore, the invisible appliance combined with the lingual occlusal plate provided by the present invention can stimulate the growth of the jaw in the sagittal direction without generating vertical stimulation.

[0027] (2) When the invisible braces combined with the lingual occlusal plate provided by the present invention are worn, the upper and lower molars can occlude normally without affecting the chewing function during the correction period. The appliance body can also cooperate with the mandibular advancement to perform complex tooth movements such as aligning crowded teeth, moving the entire dentition distally, and retracting the front teeth, thereby greatly shortening the correction time.

[0028] (3) The invisible orthodontic appliance combined with the lingual occlusal plate provided by the present invention can guide the tip of the tongue upward to a normal position, thereby assisting in correcting bad tongue habits and abnormal swallowing habits, because the lingual occlusal plate is located in the canine area on the lingual side of the dental arch. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of the first lingual occlusal plate of the present invention.

[0030] Figure 2 This is a schematic structural diagram of the mandibular appliance of the present invention.

[0031] Figure 3 It is a structural schematic diagram of the maxillary appliance of the present utility model.

[0032] Figure 4 This is a structural diagram of the traction buckle of the utility model.

[0033] The following are marked in the figure:

[0034] 1 is the mandibular appliance, 2 is the maxillary appliance, 3 is the lingual occlusal plate assembly, 3-1 is the first lingual occlusal plate, 3-1-1 is the first guiding slope, 3-2 is the second lingual occlusal plate, 3-2-1 is the second guiding slope, and 4 is the traction buckle. DETAILED DESCRIPTION

[0035] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0037] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0038] In the following embodiments, unless otherwise specified, functional components or structures are conventional components or structures used in the art to achieve corresponding functions.

[0039] Example 1:

[0040] like Figure 1-3 As shown, this embodiment provides an invisible braces with a lingual occlusal plate, including an appliance body for being mounted on the teeth and a lingual occlusal plate assembly 3 integrally connected to the appliance body. Specifically, the appliance body includes a mandibular appliance 1 and a maxillary appliance 2. The lingual occlusal plate assembly 3 includes a first lingual occlusal plate 3-1 arranged on the inner side of the dental arch of the mandibular appliance 1 and a second lingual occlusal plate 3-2 arranged on the inner side of the dental arch of the maxillary appliance 2, the first lingual occlusal plate 3-1 is provided with a first guiding slope 3-1-1 inclined toward the posterior tooth area, and the second lingual occlusal plate 3-2 is provided with a second guiding slope (3-2-1) inclined toward the anterior tooth area; the first guiding slope 3-1-1 and the second guiding slope 3-2-1 are arranged opposite to each other, so that when occluding, the first guiding slope 3-1-1 and the second guiding slope 3-2-1 are connected to each other, and the first lingual occlusal plate 3-1 and the second lingual occlusal plate 3-2 slide relative to each other along the connecting surface, and then the mandibular part is guided to move forward relatively by the mandibular appliance 1, and the maxillary part is guided to move backward relatively by the maxillary appliance 2.

[0041] In the present technical solution, since the maxillary appliance 2 matches the maxillary teeth and the mandibular appliance 1 matches the mandibular teeth, when the patient with skeletal Class II malocclusion wears it and bites back, the maxillary appliance 2 corresponds to the maxillary teeth and the mandibular appliance 1 corresponds to the mandibular teeth. The second guide bevel 3-2-1 on the maxillary appliance 2 overlaps with the first guide bevel 3-1-1 on the mandibular appliance 1 under the displacement of the maxillary part and the mandibular part. Therefore, the mandibular part is guided to displace forward, thereby driving the mandibular teeth and the jaw to displace forward; the maxillary part is guided to displace backward, thereby driving the maxillary teeth and the jaw to displace backward, helping to adjust the problem of relative protrusion of the maxilla and relative retraction of the mandible in patients with skeletal Class II malocclusion. And because the first lingual occlusal plate 3-1 is located on the lingual side of the dental arch of the mandibular appliance 1 and the second lingual occlusal plate 3-2 is located on the lingual side of the dental arch of the maxillary appliance 2, the bite will not be opened too much and no adverse vertical growth stimulation will be generated on the mandible.

[0042] The first lingual occlusal plate 3-1 and the second lingual occlusal plate 3-2 are in the shape of a three-dimensional triangle, exemplarily in the shape of a triangular pyramid, and are connected to the braces at the minimum fulcrum to maximize the guiding effect of the lingual occlusal plate assembly 3 without affecting the functioning of the braces. The first guiding bevel 3-1-1 is facing the posterior teeth area, and the second guiding bevel 3-2-1 is facing the anterior teeth area. The angles between the first guiding bevel 3-1-1, the second guiding bevel 3-2-1 and the occlusal surface are both less than 80°, so as to stimulate the growth of the jaw in the sagittal direction. For patients with skeletal Class II high-angle type, it is preferred that the angle between the first guiding bevel 3-1-1 and the occlusal surface is 70°, and the angle between the second guiding bevel 3-2-1 and the occlusal surface is 70°.

[0043] The first guiding slope 3-1-1 and the second guiding slope 3-2-1 are both provided with a plurality of small protrusions to enhance the locking effect after the two overlap.

[0044] The first lingual occlusal plate 3-1 is located on the lingual side of the mandibular appliance 1 relative to the canine area, and the second lingual occlusal plate 3-2 is located on the lingual side of the maxillary appliance 2 relative to the canine area. For patients with skeletal Class II high-angle type, it is preferred that the first lingual occlusal plate 3-1 is located on the lingual side of the mandibular appliance 1 relative to the canine and first premolar junction area; the second lingual occlusal plate 3-2 is located on the lingual side of the maxillary appliance 2 relative to the canine and first premolar junction area. In the present technical solution, since the first lingual occlusal plate 3-1 is located on the lingual side of the dental arch of the mandibular appliance 1, the space on the lingual side of the lower anterior teeth area is reduced, guiding the tongue tip to rise to the top of the palate, which is conducive to establishing normal tongue habits, and can help patients with tongue-thrusting and swallowing habits and low-positioned tongues to correct bad tongue habits, block the effect of bad tongue habits pushing down the labial inclination of the anterior teeth, and improve the profile.

[0045] Patients with skeletal Class II malocclusion include patients with skeletal Class II low-angle malocclusion, patients with skeletal Class II even-angle malocclusion and patients with skeletal Class II high-angle malocclusion. Compared with patients with skeletal Class II low-angle and even-angle malocclusion, patients with skeletal Class II high-angle malocclusion will have vertical overdevelopment, obvious labial inclination of the lower front teeth, and problems such as low tongue position and tongue-sticking swallowing habits. Traditional orthodontic appliances are not suitable for patients with skeletal Class II high-angle malocclusion, but the technical solution of the present invention is also suitable for patients with skeletal Class II high-angle malocclusion. The technical solution of the present invention is to provide a second lingual occlusal plate 3-2 and a first lingual occlusal plate 3-1 on the lingual side of the maxillary appliance 2 and the mandibular appliance 1, respectively. The first lingual occlusal plate 3-1 guides the mandibular portion to move forward, and the second lingual occlusal plate 3-2 guides the maxillary portion to move backward. This relatively helps to adjust the problem of relative protrusion of the maxilla and relative retraction of the mandible in patients with skeletal Class II high-angle malocclusion while avoiding vertical open bite, and does not produce adverse vertical growth stimulation to the mandible. Since the second lingual occlusal plate 3-2 and the first lingual occlusal plate 3-1 are both provided on the lingual side relative to the junction area between the canine and the first premolar, the space on the lingual side of the lower anterior teeth is reduced, guiding the tongue tip to rise to the top of the palate, which is beneficial for patients with skeletal Class II high-angle malocclusion to correct bad tongue habits and prevent the bad tongue habits from pushing the lower anterior teeth labially.

[0046] Example 2:

[0047] like Figure 4 As shown, this embodiment provides an invisible braces assembly, comprising the invisible braces as described in Example 1 and a traction buckle 4, wherein the traction buckle 4 is used to connect with the implant anchorage in the mandibular posterior teeth area.

[0048] The invisible orthodontic appliance wrapped around the teeth and the traction buckle 4 are used to pull the lower dentition backward, thereby improving the protrusion of the teeth, reducing the lip protrusion, and improving the profile.

[0049] The traction buckle 4 is a structure with wide ends and a narrow middle. The narrow middle part is used to attach a rubber band or other material to the mandibular posterior tooth implant support. For patients with skeletal Class II high-angle malocclusion, the traction buckle 4 is preferably located adjacent to the mandibular canines and premolars.

[0050] The above description of the embodiments is intended to facilitate understanding and use of the utility model by those skilled in the art. Those skilled in the art will readily be able to make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the utility model is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of this utility model without departing from the scope of this utility model should be within the scope of protection of this utility model.

Claims

1. An invisible brace appliance with a lingual occlusal plate, characterized in that: include: The appliance body is used to be mounted on the teeth, and includes a mandibular appliance (1) and a maxillary appliance (2); A lingual occlusal plate assembly (3) comprising a first lingual occlusal plate (3-1) provided on the inner side of the dental arch of the mandibular appliance (1) and a second lingual occlusal plate (3-2) provided on the inner side of the dental arch of the maxillary appliance (2), wherein the first lingual occlusal plate (3-1) is provided with a first guiding inclined surface (3-1-1) inclined toward the posterior teeth region, and the second lingual occlusal plate (3-2) is provided with a second guiding inclined surface (3-2-1) inclined toward the anterior teeth region; The first guiding slope (3-1-1) and the second guiding slope (3-2-1) are arranged opposite to each other so that During occlusion, the first guiding bevel (3-1-1) and the second guiding bevel (3-2-1) are in contact with each other, and the first lingual occlusal plate (3-1) and the second lingual occlusal plate (3-2) slide relatively along the contact surface, thereby guiding the mandibular part to move forward relatively through the mandibular appliance (1) and guiding the maxillary part to move backward relatively through the maxillary appliance (2).

2. The invisible braces with lingual occlusal plate according to claim 1, characterized in that: The first lingual occlusal plate (3-1) and the second lingual occlusal plate (3-2) are in a three-dimensional triangular shape.

3. The invisible braces with lingual occlusal plate according to claim 1, characterized in that: The included angles between the first guiding inclined surface (3-1-1), the second guiding inclined surface (3-2-1) and the occlusal surface are all less than 80°.

4. The invisible braces with lingual occlusal plate according to claim 3, characterized in that: The included angle between the first guiding inclined surface (3-1-1) and the occlusal surface is 70°, and the included angle between the second guiding inclined surface (3-2-1) and the occlusal surface is 70°.

5. The invisible braces with lingual occlusal plate according to claim 1, characterized in that: A plurality of small protrusions are provided on both the first guiding inclined surface (3-1-1) and the second guiding inclined surface (3-2-1).

6. The invisible braces with lingual occlusal plate according to claim 1, characterized in that: The first lingual occlusal plate (3-1) is located on the lingual side of the mandibular appliance (1) relative to the canine area, and the second lingual occlusal plate (3-2) is located on the lingual side of the maxillary appliance (2) relative to the canine area.

7. The invisible braces with lingual occlusal plate according to claim 1, characterized in that: The first lingual occlusal plate (3-1) is located on the lingual side of the mandibular appliance (1) relative to the junction area between the canine and the first premolar; The second lingual occlusal plate (3-2) is located on the lingual side of the maxillary appliance (2) relative to the junction area between the canine and the first premolar.

8. An invisible brace appliance assembly, characterized in that: It comprises the invisible braces as described in any one of claims 1 to 7 and a traction buckle (4), wherein the traction buckle (4) is used to be connected to the implant anchorage in the mandibular posterior tooth area.

9. The invisible braces assembly according to claim 8, characterized in that The traction buckle (4) is a structure with wide ends and thin middle.

10. The invisible braces assembly according to claim 8, wherein: The traction buckle (4) is arranged at the adjacent positions of the canines and premolars on both sides of the mandible.

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