An orthodontic appliance that pushes the upper front teeth forward to balance the face.
The intraoral orthodontic appliance addresses the challenges of conventional devices by providing a comfortable and discreet solution for maxillary expansion, enhancing treatment efficacy and reducing daily interference.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-30
- Publication Date
- 2026-04-14
AI Technical Summary
Conventional orthodontic devices for maxillary expansion are cumbersome, noticeable, and uncomfortable, leading to prolonged treatment periods and interference with daily activities.
An intraoral orthodontic appliance comprising two main devices: a first appliance fixed to the upper front teeth with hooks and a second appliance covering molars, utilizing stainless steel spring wires to promote maxillary expansion with improved comfort and discretion.
The appliance effectively shortens treatment duration, enhances maxillary expansion, and reduces discomfort, making it easier to wear and less conspicuous.
Smart Images
Figure 2026511307000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an apparatus used in orthodontics, which is one of the orthodontic techniques, and particularly relates to bone formation or bone modeling for enhancing the effect of orthodontic treatment.
Background Art
[0002] Conventionally, an upper jaw expansion device has been a device specialized for treating dental abnormalities and maxillary bone abnormalities in patients with mandibular prognathism or maxillary hypoplasia. This device has been used to pull the maxilla and teeth forward, align the upper teeth appropriately with the lower teeth, and set them at a good angle. Recent devices for treating maxillary bone abnormalities are called forward traction headgear and face masks.
[0003] Figures 1 and 2 respectively show the forward traction headgear of Dr. Delaire, a commonly known prior invention, and the face mask of Dr. Pity. Both devices have the same mechanism of pulling the bone and teeth forward. Each device includes two parts: an intraoral acrylic plate and an extraoral tool. The intraoral acrylic plate is fixed to all upper teeth. The intraoral acrylic plate has two hooks attached to teeth No. 16 and No. 26. The extraoral tool has pads that are applied to the jaw and forehead. The pads are connected by a curved metal piece or a rigid plastic piece with a horizontal metal strip, forming a strengthened module.
[0004] Conventional devices are large and difficult to wear. Multiple steps are required for wearing and removing, and they may easily come off during sleep. Furthermore, because conventional devices look bad and are conspicuous, users may dislike talking or wearing them in public. As a result, it may cause interference with daily activities and prolong the treatment period.
Summary of the Invention
Problems to be Solved by the Invention
[0005] The present invention aims to create an intraoral orthodontic appliance for promoting maxillary expansion, while also being more effective, shortening the treatment period, being smaller, lighter, easier to wear, and less noticeable, without causing discomfort in the oral region. [Means for solving the problem]
[0006] An orthodontic appliance that protrudes the upper front teeth forward to balance the face consists of two main appliances that are attached to the patient's teeth. The first appliance (1) is positioned on the back of the six upper front teeth and is fixed to the upper front teeth with orthodontic adhesive, and comprises a first hook (3) and a second hook (4) made of stainless steel spring hard wire attached to both ends of the upper plate (5).
[0007] The second device (2) comprises a right-side plate (6) and a left-side plate (7) that cover the remaining molars and part of the palate, a first wire (8) which is a stainless steel spring hardwire attached to the right-side plate (6) and the left-side plate (7), and a second wire (9) which is a stainless steel spring hardwire curved along the anterior teeth. A third hook (10) and a fourth hook (11) are provided in the central anterior region. The second wire (9) has a left-side U-shaped loop (12) and a right-side U-shaped loop (13) in the premolar region, and both ends of the wire are attached to the right-side plate (6) and the left-side plate (7). [Brief explanation of the drawing]
[0008] [Figure 1] A diagram showing Dr. Delea's extraoral tools. [Figure 2] A diagram showing Dr. Petit's extraoral tools. [Figure 3] A diagram showing the overall configuration of an orthodontic appliance according to the present invention that causes the upper front teeth to protrude forward in order to balance the face. [Figure 4] A diagram showing the first appliance (1) fixed to the upper front teeth. [Figure 5] A diagram showing a removable second device (2). [Figure 6] A diagram showing the positions of the first device (1) and the second device (2) in a dental plaster model. [Figure 7] A diagram showing various configurations of the first wire (8) of the second device (2). [Modes for carrying out the invention]
[0009] The orthodontic appliance according to the present invention, which causes the maxillary anterior teeth to protrude forward in order to balance the face, comprises two main devices: a first device (1) and a second device (2). The first device (1) comprises an upper plate (5) which is positioned on the back side of the six maxillary anterior teeth and fixed to the maxillary anterior teeth with orthodontic adhesive, and a first hook (3) and a second hook (4) attached to the upper plate (5).
[0010] The first hook (3) and the second hook (4) have a diameter of 0.5-1.2 mm and a height of 10-17 mm. Each of the first hook (3) and the second hook (4) is attached to the upper plate.
[0011] The second appliance (2) comprises a right-side plate (6) and a left-side plate (7) positioned on both sides of the palate and covering all molars. The right-side plate (6) and the left-side plate (7) are positioned 10-15 mm from the center of the palate on the lingual side. A first wire (8), which is a stainless steel spring hard wire with a diameter of 0.6-1.3 mm, is attached to the right-side plate (6) and the left-side plate (7).
[0012] The second wire (9) is a stainless steel spring hard wire with a diameter of 0.6-1.3 mm and is curved along the maxillary anterior teeth. The anterior portion of the wire has a third hook (10) and a fourth hook (11) formed thereon. The second wire (9) has a left-side U-shaped loop (12) and a right-side U-shaped loop (13) with a width and height of 3-10 mm formed thereon, which are curved along the premolars, and both ends of the wire are attached to the right-side plate (6) and the left-side plate (7).
[0013] The height of the third hook (10) and the fourth hook (11) is preferably 4-12 mm. The ends of both hooks face each other and are 10-17 mm apart.
[0014] The upper plate (5), right plate (6), and left plate (7) can be selected from acrylic plates and transparent plastic plates.
[0015] The orthodontic appliance according to the present invention, which propels the maxillary anterior teeth forward to balance the face, first attaches the first appliance (1) to the maxillary anterior teeth with orthodontic adhesive. Next, before attaching whichever of the right plate (6) and left plate (7) is easier to attach, the second wire (9) is positioned on the maxillary anterior teeth and the second appliance (2) is attached. Using 1 / 8 inch, 3.5 oz or 3 / 8 inch, 3.5 oz rubber bands, the first hook (3) is pulled to the fourth hook (11) and the second hook (4) is pulled to the third hook (10), and this is held for 8-20 hours. Replace the rubber bands when the tension decreases. <Best mode for carrying out the invention> As described in the description of the embodiments for carrying out the invention.
Claims
1. The system comprises a first device (1) and a second device (2), The first device (1) comprises an upper plate (5) positioned on the back of six maxillary anterior teeth and fixed to the maxillary anterior teeth with orthodontic adhesive, and a first hook (3) and a second hook (4) attached to the upper plate (5), The second device (2) comprises a right-side plate (6) and a left-side plate (7) positioned on both sides of the palate and covering all molars, wherein the right-side plate (6) and the left-side plate (7) are positioned away from the center of the palate on the lingual side, and a first wire (8), which is a stainless steel spring hardwire, is attached to the right-side plate (6) and the left-side plate (7). An orthodontic appliance for causing the maxillary anterior teeth to protrude forward in order to balance the face, characterized in that a second wire (9), which is a stainless steel spring hard wire with a diameter of 0.6-1.3 mm, has a third hook (10) and a fourth hook (11) formed on the front portion of the wire, and a left U-shaped loop (12) and a right U-shaped loop (13) formed on the second wire (9) which curves along the premolars, and both ends of the wire are attached to the right plate (6) and the left plate (7).
2. The orthodontic appliance for protruding the maxillary anterior teeth forward to balance the face, as described in claim 1, wherein the first hook (3) and the second hook (4) have a diameter of 0.5–1.2 mm and a height of 10–17 mm, and are each attached to the upper plate.
3. The upper plate (5) is curved along the upper front teeth, the orthodontic appliance for causing the upper front teeth to protrude forward in order to balance the face as described in claim 1.
4. The orthodontic appliance for protruding the maxillary anterior teeth forward to balance the face, as described in claim 1, wherein the right plate (6) and the left plate (7) attached to the palate are each positioned 10-15 mm away from the center of the palate.
5. The orthodontic appliance for protruding the upper front teeth forward to balance the face, as described in claim 1, wherein the upper plate (5), the right plate (6), and the left plate (7) can be selected from acrylic plates and transparent plastic plates.
6. The orthodontic appliance for protruding the maxillary anterior teeth forward to balance the face, as described in claim 1, wherein the first wire (8) is a stainless steel spring hard wire with a diameter of 0.6-1.3 mm.
7. The third hook (10) and the fourth hook (11) preferably have a height of 5-7 mm, and the ends of the second hook are opposite each other and 10-17 mm apart, the orthodontic appliance for protruding the maxillary anterior teeth forward to balance the face as described in claim 1.
8. The orthodontic appliance for causing the maxillary anterior teeth to protrude forward in order to balance the face, as described in claim 1, wherein the wire (9) placed on the premolar has a width and height of 3-10 mm, and both ends of the wire are attached to the right plate (6) and the left plate (7).