Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
  • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
  • A61C7/14—Brackets; Fixing brackets to teeth
  • A61C7/143—Brackets with two or more recesses for arch wires
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
  • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
  • A61C7/14—Brackets; Fixing brackets to teeth
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
  • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
  • A61C7/14—Brackets; Fixing brackets to teeth
  • A61C7/148—Brackets; Fixing brackets to teeth with occlusal or gingival archwire slot opening
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
  • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
  • A61C7/14—Brackets; Fixing brackets to teeth
  • A61C7/16—Brackets; Fixing brackets to teeth specially adapted to be cemented to teeth
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
  • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
  • A61C7/20—Arch wires
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
  • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
  • A61C7/28—Securing arch wire to bracket
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
  • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
  • A61C7/28—Securing arch wire to bracket
  • A61C7/30—Securing arch wire to bracket by resilient means; Dispensers therefor

Definitions

• the present invention relates to orthodontic brackets, and in particular to self-ligating brackets and orthodontic bracket sets that combine multiple self-ligating brackets.
• Orthodontic treatment to correct tooth alignment and bite alignment uses brackets that are fixed to the surface of the teeth and wires that are inserted into slots in the brackets to apply orthodontic force to the teeth.
• the traditional treatment method involves inserting the wire into the brackets and then ligating the wire and brackets with rubber bands, wire, or similar.
• a self-ligating bracket has become known that allows a wire to be fixed to the bracket without the need for ligation.
• the self-ligating bracket shown in Patent Document 1 is provided with a shutter that can cover the opening of a slot recessed in the bracket, and by sliding the shutter, the opening of the slot can be opened or closed as needed. After opening the opening of the bracket and placing a wire in the slot, the shutter is closed, allowing the wire to be fixed in place on the bracket and orthodontic treatment to be performed.
• brackets have a shutter at the opening, which requires a large number of parts and space to open and close the shutter. This makes the bracket itself complex in structure, making it bulky overall, and because there is little free space, it is structurally difficult to provide two slots.
• This application seeks to solve the above-mentioned problems by providing a self-ligating bracket that can be equipped with one or two slots, has a simple structure, and is easy to use, as well as a bracket set that combines multiple such brackets.
• the first invention of this application is an orthodontic bracket comprising a base that can be fixed to the back surface of a tooth, a bracket body that is fixed to the base and has a slot through which a wire can be inserted, and a lid that can cover the surface of the bracket body, wherein a first slot and a second slot are recessed and spaced apart on the surface of the bracket body, a hinge portion is provided at one end of the bracket body and the lid body is rotatably connected via the hinge portion, and an engagement means is provided at the other end of the bracket body that allows the lid body to be detachably engaged.
• the surface of the lid may be smooth, with part or all of the surface being curved.
• the bracket body may be provided with an engaging protrusion as the engaging means
• the lid may be provided with an engaging recess that can engage with the engaging protrusion at a position corresponding to the engaging protrusion.
• first slot and second slot may be formed so that the angle at which their respective central axes in the depth direction intersect is 90°.
• the inner surface of the lid may be shaped to correspond to the surface shape of the bracket body.
• the inner surface of the lid can be positioned in contact with the surface of the bracket body, and the gap between the inner surface of the lid and the surface of the bracket body can be minimized. This allows the wire to be held stably within the slot.
• the bracket body may also be provided on one end of the base.
• the base may extend from the bracket body and be configured so that it can cover the cervical side of the bracket body when attached to the mandibular front teeth.
• the back side of the front teeth being treated can be covered by the base, from the bracket body to the gum side, and the presence of the base makes it possible to effectively prevent tartar from building up around the bracket.
• the second invention of this application is an orthodontic bracket comprising a bracket body that can be fixed to the inner surface of a molar tooth and has a slot through which a wire can be inserted, and a lid that can cover the surface of the bracket body, in which a single slot is recessed into the surface of the bracket body, and the lid is rotatably connected to one end of the bracket body via a hinge portion.
• the "molar tooth” in this invention includes both premolars and molars.
• the bracket body of the second invention has only one slot, unlike the first invention which has two slots, so the size of the bracket body can be made smaller than that of the first invention. As a result, it can be made smaller overall than the bracket of the first invention or a bracket with a conventional shutter, making it easier to avoid occlusal contact, reducing the risk of the device detaching from the tooth surface and making it easier to attach the bracket to the appropriate position on the tooth.
• an orthodontic bracket set may be constructed by combining multiple orthodontic brackets according to the first invention with multiple orthodontic brackets according to the second invention.
• the first and second inventions of this application have a simple configuration in which a lid is rotatably attached to the bracket body via a hinge portion. Therefore, simply by rotating the lid open, the wire can be inserted into the slot or manipulated, and the wire can be attached by rotating the lid closed, thereby enabling treatment to be performed easily and quickly without the need for any special procedures. Furthermore, because the lid can cover the surface of the bracket body via the hinge portion, the surface of the bracket body can be made smooth and with minimal irregularities in the oral cavity during orthodontic treatment. Therefore, the discomfort felt by the patient due to the presence of the bracket in the oral cavity during treatment is reduced, and it is possible to prevent the bracket from damaging the oral cavity, thereby reducing the burden on the patient.
• the first invention of this application has a simple configuration as described above, there is no need to provide a special part for the cover on the bracket body, and it is possible to ensure sufficient space for providing two slots in the direction in which the axes of the two slots intersect. Therefore, since it is possible to insert and arrange two wires through the bracket body, there is no need to worry about the width of the gap between the slot and the wire, as is the case when orthodontic treatment is performed with a single wire, and it is possible to use wires with circular cross sections as well as wires with square cross sections.
• the treatment is easy to perform. Furthermore, it is possible to correct the teeth to the desired angle with greater precision than with orthodontics using a single wire, further shortening the treatment period.
• the second invention of the present application has a simple configuration similar to the first invention, and unlike the first invention, it has only one slot, so it can be made smaller overall than the bracket of the first invention, which has two slots. This reduces the discomfort felt in the mouth when worn, further reducing the burden on the patient.
• FIG. 1 is a side view of a first embodiment of the present invention.
• FIG. 2 is a plan view of the bracket body of the first embodiment.
• FIG. 10 is a plan view showing the bracket body covered with the lid in the first embodiment.
• FIG. 3 is a side view showing a state in which the lid body is open in the first embodiment.
• FIG. 2 is a front view showing the bracket of Example 1 fixed to the back surface of a front tooth.
• FIG. 2 is a side view showing the bracket of Example 1 fixed to the back surface of a front tooth.
• FIG. 10 is a side view showing a second embodiment of the first invention of the present application.
• FIG. 10 is a side view showing the bracket of Example 2 fixed to the back surface of the front teeth.
• FIG. 10 is a side view of a third embodiment of the second invention.
• FIG. 11 is a plan view showing the bracket body covered with the lid in the third embodiment.
• FIG. 10 is a side view showing the bracket of Example 3 fixed to the side of a premolar.
• FIG. 10 is a side view of a fourth embodiment of the second invention.
• FIG. 10 is a plan view showing the bracket body covered with the lid in the fourth embodiment.
• FIG. 10 is a front view showing the bracket of Example 4 fixed to the side of a molar.
• Example 1 of the first invention of the present application with reference to Figures 1 to 6,
• (1) is a bracket body, the bottom surface (2) of which is fixed to a flat base (3).
• the bracket body (1) is fixed to the base (3) so that a hinge portion (4), which will be described below, is located at one end (5) of the base (3).
• the bracket body (1) has a side surface (6) that is roughly fan-shaped, and its surface (19) is formed into a smooth curved surface.
• bracket body (1) has a simple shape and configuration as described above, it is possible to ensure sufficient space for the two slots (27) to be provided in the direction in which their axes intersect, as shown by the dashed lines in Figure 1. For this reason, the surface (19) of the bracket body (1) is recessed with a U-shaped cross section, a first slot (7) and a second slot (8), as shown in Figure 1, spaced apart from each other from one side of the bracket body (1) to the other, as shown in Figure 2.
• one wire (10) can be inserted into each slot (27), allowing a total of two wires (10) to apply orthodontic force to the teeth (11).
• This allows orthodontic force to be applied to the target teeth (11) from two different directions using the two wires (10). Therefore, compared to using only one wire (10) as in conventional technology, orthodontic treatment can be performed with high precision in a short period of time without requiring special techniques such as twisting the wire (10).
• first slot (7) and the second slot (8) are formed so that the intersecting angle between them in the depth direction is 90°, as shown by the dot-dash line in Figure 1.
• the wires (10) placed in the first slot (7) and the second slot (8) can precisely apply pressure to the tooth (11) being orthodontic treatment at the desired strength and angle. This makes it possible to more easily and stress-free perform precise three-dimensional control of the tooth (11) being orthodontic treatment.
• one end (28) of the bracket body (1) is provided with a cylindrical hinge portion (4), and the other end (21) is provided with protrusions (12) on both sides of the other end (21) as shown in Figure 1, with engaging protrusions (13) protruding from the bottom surfaces of the protrusions (12).
• the engaging protrusions (13) and protrusions (12) serve as the engaging means in this embodiment.
• the lid (14) of this embodiment will be described.
• the lid (14) is formed from a thin plate and has a smooth surface (25).
• the inner shape of the lid (14) corresponds to the shape of the surface (19) of the bracket main body (1), and as shown in FIGS. 1 and 3, it is capable of covering the entire surface (19) of the bracket main body (1). This allows the openings (23) and (24) of the first slot (7) and second slot (8) recessed in the bracket main body (1) to be securely closed with minimal gap (26) between the openings (23) and (24) and the lid (14).
• one side (15) of the cover (14) is provided with a pair of hinge protrusions (9) at both ends of the side (15).
• the hinge protrusions (9) are formed so that they can be inserted into the cylindrical holes (16) of the hinge portion (4) provided in the bracket main body (1) in a direction parallel to the side (15).
• the lid (14) is rotatably connected to the bracket body (1) by engaging the hinge protrusion (9) with the hinge portion (4) as described above.
• the lid (14) may be rotatably assembled to the bracket body (1) by providing a hinge (not shown) as the hinge portion (4) on the bracket body (1) and connecting the bracket body (1) and the lid (14) via the hinge.
• the other side (17) of the cover (14) is provided with an engagement recess (18) that can engage with the engagement protrusion (13) of the bracket body (1) when the cover (14) is placed over the bracket body (1) as shown in Figure 1, at a position corresponding to the engagement protrusion (13).
• the bracket (20) formed as described above is then fixed to the back surface of the front tooth (11) to be orthodontic treated, as shown in Figures 5 and 6. That is, the bracket body (1) is fixed and positioned so that the hinge portion (4) is positioned toward the patient's gum (not shown) and the other side of the base (3) is positioned toward the incisal edge (22) of the front tooth (11). Then, as shown in Figure 4, the cover (14) is rotated to open the openings (23) and (24) of the first slot (7) and second slot (8), and a wire (10) with a square cross section is inserted and positioned into the first slot (7) and second slot (8), respectively. After the wire (10) has been attached, the cover (14) is closed, completing the attachment of the wire (10).
• the wire (10) can be inserted into the slot (27) and manipulated simply by rotating and opening the lid (14), and the wire (10) can be attached by rotating and closing the lid (14). This eliminates the need to apply a twisting force to the wire as with conventional brackets, making it possible to easily perform treatment in a short amount of time.
• the cover (14) covers the surface (19) of the bracket body (1) via the hinge portion (4), and the surface (25) of the cover (14) is made smooth.
• the surface of the bracket (20) is smooth inside the oral cavity, which reduces the discomfort caused by the presence of the bracket (20) during treatment and reduces the burden on the patient.
• the hinge portion (4) of the bracket main body (1) is fixed to the base (3) so as to be located on one end (5) of the base (3), but in this embodiment, it is configured so as to extend further from the hinge portion (32) of the bracket main body (31).
• the bracket (33) of this embodiment referring to Figures 7 and 8, as shown in Figure 7, the bracket main body (31) is positioned in the center of the base (34) in the longitudinal direction. Therefore, the base (34) is configured so as to extend further from the hinge portion (32) of the bracket main body (31).
• the base (34) By extending the base (34) as described above, when the bracket (33) of this embodiment is attached to the back of the front tooth (35), the base (34) covers the bracket body (31) and the gum side of the front tooth (35), as shown in Figure 8.
• the back of the lower front tooth (35) is particularly susceptible to tartar formation when the calcium component of saliva that flows from the salivary glands under the tongue mixes with plaque.
• brackets (33) when orthodontic treatment involves attaching brackets (33) to the backside of teeth (35), tartar tends to accumulate around the brackets (33) fixed to the backside of the mandibular anterior teeth (35), which can significantly impair the operability of the brackets (33). Therefore, in this embodiment, as described above, the bracket body (31) can be covered from the gum side by the base (34), and the presence of this base (34) makes it possible to effectively prevent tartar from building up around the brackets (33).
• the remaining configuration of this embodiment is the same as that of the first embodiment described above.
• two slots (40) are provided in the bracket body (31), and a wire (37) can be inserted into each slot (40). Therefore, there is no need to worry about the width of the gap (38) between the slot (40) and the wire (37), as is the case when orthodontic treatment is performed using a single wire (37). Furthermore, it is possible to use not only wires with square cross sections, but also wires (37) with circular cross sections, as shown in Figure 7.
• a slot (58) is provided in one location extending from the surface (74) of the bracket body (52) toward the base (54) side, allowing the wire (57) to be inserted and positioned.
• a cylindrical hinge portion (61) is provided at one end (60) of the bracket body (52), and protrusions (63) are provided on both sides of the other end (62) as shown in Figure 9. Engagement protrusions (64) protrude from the bottom surfaces of the protrusions (63), and these engagement protrusions (64) serve as the engagement means of this embodiment.
• the lid (66) of this embodiment is formed from a thin plate and has a smooth surface (56).
• the inner shape of the lid (66) corresponds to the shape of the surface (74) of the bracket main body (52), and as shown in Figures 9 and 10, it is capable of covering the entire surface (74) of the bracket main body (52). This allows the opening (68) of the slot (58) recessed in the bracket main body (52) to be securely closed with little gap (78).
• one side (70) of the cover (66) is provided with a pair of hinge protrusions (71) on both ends of the one side (70).
• the hinge protrusions (71) are formed so that they can be inserted into a cylindrical hole (76) of a hinge portion (61) provided in the bracket main body (52) in a direction parallel to the one side (70).
• the other side (72) of the cover (66) is provided with an engagement recess (77) at a position corresponding to the engagement protrusion (64) that can engage with the engagement protrusion (64) of the bracket body (52) when the cover (66) is placed over the bracket body (52) as shown in Figure 9.
• the bracket (51) formed as described above is then fixed to the side of the premolar (53) to be corrected, as shown in Figure 11.
• the lid (66) is then rotated to open the opening (68) of the slot (58), and a wire (57) with a square cross section is inserted and positioned in the slot (58). After the wire (57) has been attached, the lid (66) is closed as shown in Figure 9, completing the attachment of the wire (57).
• the wire (57) can be inserted into the slot (58) and the wire (57) can be operated. Furthermore, by rotating and closing the lid (66), the wire (57) installation process can be completed, allowing for easy and rapid treatment.
• the cover (66) covers the surface (74) of the bracket body (52) via the hinge portion (61), and the surface (56) of the cover (66) is made smooth. Therefore, the surface (74) of the bracket (51) is smooth inside the oral cavity, which reduces the discomfort caused by the presence of the bracket (51) during treatment and reduces the burden on the patient.
• the configuration of the bracket body (52) (101) is as simple as in the above-mentioned embodiments 1 and 2, and, unlike the above-mentioned embodiments 1 and 2, only one slot (58) is provided. Therefore, the bracket (51) in this embodiment and the following embodiment 4 can be formed even smaller than the above-mentioned embodiments 1 and 2, which are provided with two slots (27) (40). This makes it easier to avoid occlusal contact, reducing the risk of the device detaching from the tooth surface and making it easier to attach the bracket to the appropriate position on the tooth.
• a bracket (51) for a premolar (53) having a single slot (58) was described, but in this embodiment, as in the third embodiment, only a single slot (91) is provided.
• the bracket (93) for a molar (92) in this embodiment will be explained using Figures 12 to 14.
• the bracket (93) for a molar (92) has a hook (95) parallel to the base (96) on the side of the hinge portion (94) of the bracket main body (101) opposite the direction in which the cover (98) is arranged.
• the rest of the configuration is the same as the bracket (51) described in the third embodiment.
• the bracket (93) formed as described above is then fixed to the side of the molar tooth (92) to be corrected, as shown in Figure 14.
• the lid (98) is then rotated to open the opening (97) of the slot (91), and a wire (100) with a square cross section is inserted and positioned in the slot (91). After the wire (100) has been attached, the lid (98) is closed as shown in Figure 10, completing the attachment of the wire (100).
• the bracket (20) of Example 1 is used on the front teeth (11) on the upper jaw
• the bracket (33) of Example 2 is used on the front teeth (35) on the lower jaw
• the bracket (51) of Example 3 is used on the premolars (53)
• the bracket (93) of Example 4 is used on the molars (92). Therefore, multiple combinations of the brackets (20), (33), (51), and (93) of Examples 1 to 4 can be used as an orthodontic bracket set.

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• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
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• Veterinary Medicine (AREA)
• Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

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  • 2024-02-28 KR KR1020247025709A patent/KR20250133818A/ko active Pending
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