TW202011906A - Orthodontic brace - Google Patents

Abstract

This invention relates to an orthodontic brace that can be wore on user’s dental arch removably, for correcting the dental arch from an original contour to an objective contour which is different with the shape of original contour. The orthodontic brace has a plurality of elastic arms that contact with a lingual side or a buccal side of dental arch, a corrective contour is constructed by the elastic arms. The corrective contour is corresponding with at least one part of the objective contour and has at least one inflexion between a connected position of the two elastic arms. While wearing the orthodontic brace in the dental arch with the original contour, at least one elastic arm will be compressed or expanded by the dental arch for generating an elastic force which put the inflexion as a center point to affect the dental arch. Meanwhile, the height of the elastic arms would not over the height of an occlusal surface in the dental arch to prevent saliva from being deposited in the orthodontic brace, and solve other problems due to the thickness of brace in the occlusal surface.

Description

Braces

The invention relates to an orthodontic braces, in particular to an orthodontic braces installed on a dental arch to correct the arrangement of teeth.

In addition to being beautiful in appearance, the neatly arranged teeth can also reduce unnecessary abrasion of teeth, reduce the dead angle of brushing teeth, or reduce the burden on the jaw joint. In order to align poorly arranged teeth, orthodontics is an indispensable and important component of orthodontics.

In traditional orthodontics, it is generally done by sticking an orthodontic appliance that is connected to a straight line that is curved like a dental arch on the surface of the tooth, and then gradually changes the teeth through the continuous application of force given by the straight line However, there are many problems in using the method of attaching orthotics to the teeth; in addition to aesthetics, the traditional orthotics have a certain volume and thickness that make the wearer uncomfortable, and the edges of the orthotics are easy to scratch the tongue or Cheeks, causing broken skin or mucous membrane ulcers.

Therefore, some manufacturers have developed a braces (such as hidden braces) that allow users to wear or remove braces without attaching orthotics to the surface of the teeth, and gradually change the teeth by wearing braces of different shapes one after another. To correct the position.

Among them, the most common appearance of this type of braces is the appearance of a uniform thickness shell that is produced by 3D printing or vacuum forming of a plastic sheet. The semi-closed shell design , Because the saliva is easy to accumulate inside and easily cause odor, and because the material at the occlusal surface has a certain thickness, it is easy to make the mouth unable to close the mouth normally when wearing and finally affect the pronunciation and drooling. In addition, During the wearing process, the bite surface of the braces will be bitten by the user due to tooth grinding and other actions, and may need to be replaced entirely. With the extension of the correction time, long-term wearing may even cause the phenomenon of bite of the posterior teeth.

The main purpose of the present invention is to provide an orthodontic brace that will not cover the occlusal surface when worn. In addition to preventing saliva from accumulating in the braces, it can also prevent other problems arising from the thickness of the braces at the occlusal surface.

To achieve the above purpose, the orthodontic braces of the present invention can be detachably mounted on a dental arch of a user, and the dental arch is corrected from an original contour to a target contour different from the original contour. The orthodontic braces include plural A spring arm that is in contact with the lingual or buccal side of the dental arch, a plurality of the spring arms are interconnected to form a correction contour, the correction contour conforms to at least a portion of the target contour, and has at least one located at the connection position of the two spring arms At the turning point, when the orthodontic braces are installed to the dental arch with the original contour, at least one of the elastic arms will be squeezed or stretched by the dental arch, and then use the turning point as a fulcrum to produce an action on the tooth The elastic force of the bow; where the plural elastic arms do not exceed the height of an occlusal surface of the dental arch.

Regarding its mode of action, in one embodiment, the elastic arm includes a first elastic arm and a second elastic arm contacting the buccal or lingual side of the dental arch, when the orthodontic braces are installed on the original When contouring the dental arch, the first elastic arm and the second elastic arm simultaneously form a pair of acting portions for pushing against the dental arch.

In order to change the local position, in one embodiment, the first elastic arm has a first thickness, the second elastic arm has a second thickness, and the second thickness is greater than the first thickness, so that the orthodontic braces are installed When the dental arch with the original contour is formed, the first elastic arm forms a first acting portion for a large pushing effect of the dental arch, and the second elastic arm forms a pair of the dental arch for minor pushing The second acting part of the role.

In addition, in another embodiment, in order to fix the orthodontic braces on the dental arch more stably, one end of the elastic arm is provided with a surrounding portion, the surrounding portion has a bend and the elastic arm is from the buccal and The lingual side collectively surrounds at least one tooth of the dental arch.

In a similarly modified embodiment of the foregoing embodiment, in order to adjust the teeth of individual areas (and the teeth surrounded by the surrounding portion), the wall mask constituting the surrounding portion has a first thickness, and the elastic arm connecting the surrounding portion It has a second thickness, and the second thickness is greater than the first thickness.

As in another similarly modified embodiment of the foregoing embodiment, in order to adjust individual teeth, a stretched portion is provided between the surrounding portion and the elastic arm, and the wall thickness of the drawn portion is smaller than that of the elastic arm and the surrounding portion thickness.

Regarding the change of the elastic arm, in an embodiment, the elastic arm forms a convex block toward the tongue side or the buccal side, and the convex block is disposed between two adjacent teeth of the dental arch; The raised block can be used to change the gap between two adjacent teeth.

In one embodiment, in order to adjust the occlusal surface between the upper and lower dental arches, in one embodiment, the protruding block aligns the occlusal surface on the side close to the occlusal surface, so that the other dental arch is occlusal Can be pushed by the raised block.

In terms of appearance, in addition to the aforementioned design which is only installed on the lingual or buccal side of the dental arch alone, in one embodiment, the orthodontic braces have an inner elastic arm that contacts the lingual side of the dental arch and a dental arch that contacts the dental arch The outer elastic arm of the buccal side, the two ends of the outer elastic arm are connected to the two ends of the inner elastic arm through a bend, so that the buccal and lingual sides of the dental arch are completely covered by the correction braces.

Finally, in order to adjust the position of the entire dental arch, the elastic arm is formed with a groove for the elastic member to connect (in different embodiments, it can be cut directly in the elastic arm or extended from the elastic arm by a (Hook, or a rod body with a recess), the elastic member exerts an external force on the spring arm through the groove which is different from the direction of the spring arm.

As can be seen from the above description, the present invention is characterized in that the elastic arm part is used to generate corrective braces corresponding to different correction needs through the shape change or the thickness change, and the correction braces only cover the tongue side of the teeth under normal circumstances. The buccal side does not cover the occlusal surface of the teeth, so it will not be closed normally due to the thickness problem affecting the bite height of the upper and lower teeth, and because it can be closed normally, it will not affect the pronunciation, drool, or cause opening The bite phenomenon, because the occlusal surface is not covered, so the structure of the braces will not be broken by the impact of external forces from the teeth, and the saliva can enter and exit normally and it is not easy to accumulate odor.

In order to facilitate a deeper and more clear and detailed understanding and understanding of the structure, use and characteristics of the present invention, the preferred embodiment is cited, and the detailed description in conjunction with the drawings is as follows:

Please refer to FIG. 1 to FIG. 12, the orthodontic braces 10 of the present invention include a body, the body can be detachably installed on a dental arch 20 of a user, so that the dental arch 20 is not used by the orthodontic braces 10 The original contour before the correction is a target contour different from the shape of the original contour (the contour determined by the orthodontist, the contour may not necessarily be the contour completed during the correction, or it may just be the contour of the transition state during the correction process)), The body includes two elastic arms 11 that are in contact with the lingual or buccal side of the dental arch 20, and the two elastic arms 11 are provided with a plurality of side surfaces of the crown 22 that roughly match the shape of each tooth 21 in the dental arch 20 The matching groove 110 of the shape and the matching ridge 111 between the matching groove 110, the elastic arm 11 is connected to each other to form a correction contour similar to the target contour, the correction contour conforms to at least a part of the target contour, and has At least one turning point 112 at the connecting position of the two elastic arms 11 when the orthodontic braces 10 are installed to the dental arch 20 having the original contour, because the original contour of the dental arch 20 is different from the orthodontic contour of the orthodontic braces 10 So that at least one of the elastic arms 11 will be squeezed or stretched by the dental arch 20, and then use the turning point 112 as a fulcrum to generate an elastic force acting on the dental arch 20 to act on the teeth of the dental arch 20 twenty one.

Please refer to FIGS. 1 to 4. In the embodiment of FIG. 1, the orthodontic braces 10 are installed at the lingual position of the dental arch 20, and the elastic arm 11 includes the buccal side contacting the dental arch 20. Or a first elastic arm 11A and a second elastic arm 11B on the tongue side, when the orthodontic braces 10 are installed on the dental arch 20 with the original contour, the first elastic arm 11A and the second elastic arm 11B At the same time, a pair of acting portions for pushing the dental arch 20 are formed to push against the dental arch 20 (as shown by the arrow direction in the figure), so that the crowded arrangement of the dental arch 20 is corrected from the crowded original contour to a more expanded and different The target contour in the shape of the original contour.

However, the present invention does not limit the installation position of the orthodontic braces 10, and the configuration position can be changed according to requirements to affect the manner of action of the orthodontic braces 10 on the dental arch 20, as in the embodiment of FIG. 2, the orthodontic braces 10 It is the target contour installed at the buccal position of the dental arch 20, so that the dental arch 20 with a larger tooth gap shrinks from the original contour with a large gap between the teeth 21 into a shape different from the original contour; wherein, as shown in the figure As shown in FIGS. 3 and 4, in the orthodontic braces 10 of the present invention, the wall height 13 of the plurality of elastic arms 11 does not exceed a bite between the occlusal surface 23 of the dental arch 20 and the gum (not shown) Face height 230, so that during installation, the orthodontic braces 10 only contact the side of the crown 22 of the tooth 21 without covering the occlusal surface 23 of the crown 22 without causing occlusal surfaces of the upper and lower jaws The height of 23 changes without problems such as the accumulation of saliva caused by traditional braces or affecting pronunciation.

In addition, the present invention does not limit the cross-sectional shape of the orthodontic braces 10, so that in the embodiment of FIG. 4, the orthodontic braces 10 can be an element with a uniform thickness, so that the cross-section of the orthodontic braces 10 generally corresponds to the curvature of the surface of the tooth 21 Rectangular, and in other embodiments, the cross-section may be other shapes such as triangle or semi-arc.

Please refer to FIGS. 5-7, in order to strengthen the connection between the orthodontic braces 10 and the dental arch 20, to prevent the orthodontic braces 10 from easily detaching from the dental arch 20 during the pushing process, as shown in FIGS. In the embodiment of FIG. 7, one end of the elastic arm 11 is provided with a surrounding portion 14, and the surrounding portion 14 has a bend 141 to surround the dental arch together with the elastic arm 11 from the cheek side and the tongue side 20 is at least one tooth 21 at the end; wherein, in the embodiment shown in FIGS. 5 and 6, the surrounding portion 14 surrounds the tooth 21 at both ends of the dental arch 20 and causes the teeth located at the surrounding portion 14 21 is pushed in the same direction as other teeth 21 that are not surrounded by the surrounding portion 14; and in the embodiment shown in FIG. 7, the direction of the force applied by the elastic arm 11 on the teeth 21 is in accordance with the orthodontic braces The direction of the corrected contour of 10 is different from that of the target contour, so when the original contour of the dental arch 20 is a misalignment between the tooth 21 and the dental arch 20 at one end, in order to adjust the position of the tooth 21 at the end, The target contour of the dental arch 20 becomes a complete arch shape. In the embodiment shown in FIG. 7, the force direction of the tooth 21 surrounded by the surrounding portion 14 can be the same as the teeth 21 of other parts of the dental arch 20 The direction of the force is opposite (the direction shown by the arrow in Figure 7).

Please refer to FIG. 8. Regarding the application of other modified designs of the surrounding portion 14, in one embodiment, in order to pull the individual teeth 21 and reduce the gap between the two teeth 21, the elastic arm 11 and the surrounding portion 14 There may be a stretched portion 15 between them, and in order to pull the tooth 21 surrounded by the surrounding portion 14, the thickness of the stretched portion of the stretched portion 15 is smaller than the wall of the elastic wall of the surrounding portion 14 and the elastic arm 11 thick.

As shown in FIGS. 9 to 10, in one type of embodiment, in order to change the arrangement of the plurality of teeth 21 on the side of the dental arch 20 at one time, for example, as shown in FIGS. 9 and 10, one side of the dental arch 20 is fixed In the embodiment where only the dental arch 20 on the other side is enlarged, the elastic arm 11 includes a first elastic arm 11A that contacts the tongue side of the dental arch 20 (the buccal side in other embodiments) And a second elastic arm 11B having a thickness different from that of the first elastic arm 11A, when the orthodontic braces 10 are installed on the dental arch 20 with the original contour, the first elastic arm 11A and the second elastic arm 11B simultaneously forms a pair of acting portions for pushing the dental arch 20, and as shown in FIG. 9, the first elastic arm 11A has a first thickness 110A, and the second elastic arm 11B has a second thickness 110B, because The first thickness 110A is smaller than the second thickness 110B, so that when the orthodontic braces 10 are installed on the dental arch 20 with the original contour, the first elastic arm 11A can form a pair of the dental arch 20 for a large push The first acting portion 12A against which the second elastic arm 11B forms a pair of second acting portion 12B that performs a small pushing action against the dental arch 20.

Alternatively, as shown in FIG. 10, in other embodiments, the first acting portion 12A may be provided with the surrounding portion 14, and together with the surrounding portion 14 form a U-shaped structure 16 surrounding a plurality of teeth 21, the same, In order to generate different pushing forces between the teeth 21 surrounded by the surrounding portion 14 and the teeth 21 not surrounded by the surrounding portion 14, the wall mask constituting the surrounding portion 14 has a first thickness 110A, and the body The elastic arm 11 that does not constitute the surrounding portion 14 has a second thickness 110B, and the first thickness 110A is also smaller than the second thickness 110B.

Please refer to FIGS. 11A to 12D, in order to change the shape of the entire dental arch 20 at once, in the embodiment shown in FIG. 9A, the orthodontic braces 10 have an inner elastic arm that contacts the tongue side of the dental arch 20 11C and an outer elastic arm 11D contacting the buccal side of the dental arch 20, both ends of the outer elastic arm 11D are connected to both ends of the inner elastic arm 11C through a bend 141, so that the dental arch 20 The buccal and lingual sides are completely covered by the orthodontic braces 10, but the orthodontic braces 10 will not cover the occlusal surface 23 either.

In addition, please refer to FIG. 11B and FIG. 11C. In the previous embodiment, when the orthodontic braces 10 change the shape of the dental arch 20, they only rely on the relative positional relationship between the teeth 21 of the dental arch 20. Instead of changing a reference point in the oral cavity as a reference, in the embodiment of FIGS. 11B and 11C, an elastic member 170 (for example: A groove 17 connected to a rubber ring or a spring provided in a bone nail disposed in the oral cavity, allowing the elastic member 170 to apply a different force direction to the elastic arm 11 through the groove 17 than the elastic arm 11 External force to position the orthodontic braces 10;

Please refer to FIG. 11D. In this embodiment, the elastic member 170 is an orthodontic brace 10 connected to the dental arch 20 of the upper and lower jaws at the same time, so that the teeth 21 of the dental arch 20 of the upper and lower jaws The positions can match each other; wherein, the present invention does not limit how to form the groove 17, the number of the groove 17 or the position of the groove 17, in the embodiments shown in FIGS. 9B to 9D, the concave The groove 17 is formed by a groove 17 extending from the small hook of the elastic arm 11. In other embodiments, the groove 17 may be disposed on a rod body extending from the elastic arm 11, or Using the wall thickness of the elastic arm 11, a groove 17 directly opened on the elastic arm 11 is opened.

The orthodontic braces 10 of the present invention can also create a dental implant space by pushing against, please refer to FIG. 12, in this embodiment, the elastic arm 11 of the orthodontic braces 10 faces the tongue side or the buccal side. Side (according to the position of the tooth gap relative to the elastic arm 11) to form a convex block 18, the convex block 18 is disposed in the tooth gap between two adjacent teeth 21 of the dental arch 20, and The elastic arm 11 is also provided with the surrounding portion 14; and, in order to enlarge the tooth gap, the surrounding portion 14 has a second wall 110B smaller than the first wall 110A of the elastic arm 11.

Finally, under certain malocclusion conditions, that is, when the teeth 21 of the upper and lower jaws are engaged, there is a gap between the teeth 21 on one side of the upper and lower jaws so that the teeth 21 on the other side do not engage with In the case of matching teeth 21, since the teeth 21 will gradually extend toward the other side, destroying the occlusal surface 23 of the original tooth, in the embodiment of FIG. 13, the elastic arm of the orthodontic braces 10 11 is formed toward the tongue side or the buccal side (according to the position of the tooth gap relative to the elastic arm 11), the convex block 18 is formed, and the convex block 18 is cut on the side close to the occlusal surface 23 The occlusal surface 23 allows the tooth 21 that is not pushed by the other side 21 to be pushed by the convex block 18 when the tooth 21 is biting, but does not gradually extend, thereby maintaining the bite of the side Face 23 position.

The above-mentioned embodiments are only for the convenience of describing the present invention, not to limit it. Without departing from the spirit of the present invention, those skilled in this industry who are familiar with the patent application scope of the present invention and various simple modifications and modifications made by the invention description should still be Included in the following patent applications.

10: braces 11: elastic arm 110: matching groove 111: matching ridge 112: turning point 11A: first elastic arm 110A: first thickness 11B: second elastic arm 110B: second thickness 11C: inner elastic arm 11D: outer Spring arm 12A: First acting part 12B: Second acting part 13: Wall height 14: Surrounding part 141: Bending 15: Stretching part 16: U-shaped structure 17: Groove 170: Elastic piece 18: Protruding block 20 : Dental arch 21: tooth 22: crown 23: occlusal surface 230: occlusal surface height

1 is a schematic diagram of the orthodontic braces of the present invention in one embodiment; FIG. 2 is a schematic diagram of the orthodontic braces of the present invention in another embodiment; FIG. 3 is a schematic side view of the embodiment of FIG. 2; FIG. 4 is a schematic diagram of the embodiment of FIG. 2 A schematic view of a cross section of a dental arch; FIG. 5 is a schematic view of the orthodontic braces of the present invention in another embodiment; FIG. 6 is a schematic view of the orthodontic braces of the present invention in an embodiment; FIG. 7 is a corrective braces of the present invention in an embodiment FIG. 8 is a schematic diagram of an embodiment of the present invention for correcting a brace in a local area; FIG. 9 is a schematic diagram of an embodiment of the present invention for correcting a brace in another area; FIG. 10 is a correction of the present invention FIG. 11A is a schematic diagram of another embodiment of a braces for correcting a local area; FIG. 11A is a schematic diagram of another embodiment of the braces for correcting the present invention; FIGS. 11B and 11C are schematic diagrams of the braces for correcting the present invention in another embodiment; 11D is a schematic diagram when using the braces shown in FIGS. 11B and 11C when used together; FIG. 12 is a schematic diagram of an embodiment of the orthodontic braces of the present invention in another local area for correction; FIG. 13 is a braces of the orthodontic braces of the present invention. Another schematic diagram of an embodiment for modifying a local area.

10: correct braces

11: spring arm

11A: First elastic arm

11B: Second spring arm

110: matching groove

111: fit the ridge

112: Turning Point

20: dental arch

Claims (10)

An orthodontic brace detachably mounted on a dental arch of a user, and correcting the dental arch from an original contour to a target contour different in shape from the original contour, the orthodontic braces include a plurality of The elastic arm contacting on the tongue side or the buccal side, a plurality of the elastic arms are connected to each other to form a correction contour, the correction contour conforms to at least a part of the target contour, and has at least one turning point at the connection position of the two elastic arms, so that the When the orthodontic braces are installed to the dental arch with the original contour, at least one of the elastic arms will be squeezed or stretched by the dental arch, and then use the turning point as a fulcrum to generate an elastic force acting on the dental arch; Wherein, the height of the elastic arm does not exceed the height of an occlusal surface of the dental arch. The orthodontic braces according to claim 1, wherein the elastic arm includes a first elastic arm and a second elastic arm contacting the buccal or lingual side of the dental arch, when the orthodontic braces are installed on the appliance When the dental arch of the original contour is formed, the first elastic arm and the second elastic arm simultaneously form a pair of acting portions for pushing the dental arch. The orthodontic braces according to claim 2, wherein the first elastic arm has a first thickness, the second elastic arm has a second thickness, and the second thickness is greater than the first thickness, so that when the orthodontic When the braces are mounted on the dental arch with the original contour, the first elastic arm forms a first acting portion for a large pushing action of the dental arch, and the second elastic arm forms a pair of the dental arch for small The second acting part that pushes against. The orthodontic braces according to claim 1, wherein one end of the elastic arm is provided with a surrounding portion, and the surrounding portion has a bend that surrounds at least the arch with the elastic arm from the buccal and lingual sides A tooth. The orthodontic braces as claimed in claim 4, wherein the wall covering the surrounding portion has a first thickness, and the elastic arm connecting the surrounding portion has a second thickness, and the second thickness is greater than the first thickness . The orthodontic braces according to claim 4, wherein a stretched portion is provided between the surrounding portion and the elastic arm, and the wall thickness of the drawn portion is smaller than the thickness of the elastic arm and the surrounding portion. The orthodontic braces according to claim 1, wherein the elastic arm forms a convex block toward the tongue side or the buccal side, and the convex block is disposed between two adjacent teeth of the dental arch. The orthodontic braces according to item 7 of the claim, wherein the side of the convex block close to the occlusal surface cuts the occlusal surface. The orthodontic braces according to claim 1, wherein the orthodontic braces have an inner elastic arm that contacts the tongue side of the dental arch and an outer elastic arm that contacts the buccal side of the dental arch, and both ends of the outer elastic arm respectively pass through A bend is connected to both ends of the inner elastic arm so that the buccal and lingual sides of the dental arch are completely covered by the orthodontic braces. The orthodontic braces according to claim 1, wherein the elastic arm is formed with a groove for connecting the elastic member, and the elastic member exerts an external action on the elastic arm through the groove which is different from the direction of the elastic arm force.

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