Bracket-free appliance combined with port external force device

Abstract

The utility model provides a bracket-free appliance combined with an oral external force device, which comprises a bracket-free appliance and an oral external force device matched with the bracket-free appliance for use, and the oral external force device is particularly an external arch. The oral external force device is detachably connected with the bracket-free appliance and is formed by connecting a connecting part arranged on the first molar cheek side or the second molar cheek side of the upper jaw of the bracket-free appliance. The bracket-free appliance has the beneficial effects that the bracket-free appliance is processed by an integrated forming process, upward and backward traction force is integrally applied to the upper jaw of the bracket-free appliance by using the oral external force component which is flexible to disassemble, the excessive development of the upper jaw can be controlled, and the vertical height can be controlled; and the orthodontic force of the bracket-free orthodontic appliance is assisted to push the molar to move distally.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of orthodontics, in particular to a bracket-free appliance combined with an extraoral force device. BACKGROUND

[0002] Maxillary protrusion is an important problem that plagues patients in clinical practice. Its occurrence involves both congenital and acquired factors. Different treatment methods can be adopted according to the age of the patient. If the patient is in the growth and development stage and has certain growth potential, traditional methods use headgear and extraoral arch devices to correct and inhibit maxillary bone development, so as to make the maxillary and mandibular bones develop in harmony. However, the disadvantages of traditional headgear and extraoral arches are also obvious, such as aesthetic problems: the wearing of headgear and extraoral arches may affect the appearance, especially when drinking and eating, which requires removal, which may bring some inconvenience and discomfort to the patient; psychological barriers: for some patients, especially adolescents, wearing headgear and extraoral arches may cause psychological barriers, because they need to frequently pay attention to their appearance changes, which may affect their self-confidence and quality of life; use restrictions: the use of headgear and extraoral arches requires the high cooperation of the patient, because the size of the force needs to be monitored and adjusted regularly, otherwise it may affect the correction effect. SUMMARY

[0003] To solve the above-mentioned problems, the utility model provides a kind of bracket-free appliance combined with extraoral force device, including bracket-free appliance body, the first or second molar buccal side of bracket-free appliance body is provided with connecting component. Since the bracket-free appliance body is integrally formed by molding process, the connecting component can be understood as the protrusion of the bracket-free appliance body. The connecting component is characterized by: the component is a semipermeable structure with a closed face at the distal end and a hole at the mesial end. The buccal side is a tooth-like structure with concave and convex structures. The connecting component has a hollow structure with a receiving cavity inside, allowing the free end of the inner arch of the extraoral arch to be inserted into or pulled out of the receiving cavity.

[0004] Further, the position of the connecting component along the tooth arrangement direction is generally parallel to the occlusal surface, and the position of the connecting component along the tooth long axis direction is located at 1 / 2 of the buccal side of the molar crown where the connecting component is located.

[0005] Further, the mesial surface of the connecting component is consistent with the mesial surface of the molar where the connecting component is located, and the distal surface of the connecting component is consistent with the distal surface of the molar where the connecting component is located.

[0006] Further, the length of the accommodating cavity part of the connecting component is 3 / 4 of the length of the connecting component, the height H in the direction of the long axis of the tooth is H = d + 2t + p, and the width W in the buccal-lingual direction is W = d + 2t + q, wherein d is the diameter of the inner arch of the extra-oral arch, t is the thickness of the film of the bracketless appliance, p and q are preset values, and 0mm ≤ p ≤ 2mm and 4mm ≤ q ≤ 9mm.

[0007] Further, the buccal side of the connecting component along the buccal-lingual section surface is semicircular, and the lingual side of the connecting component along the buccal-lingual section surface is the buccal side of the crown of the molar where the connecting component is located.

[0008] Further, the buccal side of the connecting component along the buccal-lingual section surface is semicircular, and the lingual side of the connecting component along the buccal-lingual section surface is the buccal side of the crown of the molar where the connecting component is located.

[0009] Further, the longitudinal section of the connecting component along the mesial-distal direction is rectangular.

[0010] Further, the buccal side of the connecting component along the buccal-lingual section surface is semicircular, and the lingual side of the connecting component along the buccal-lingual section surface is the buccal side of the crown of the molar where the connecting component is located.

[0011] Further, the buccal side of the connecting component along the buccal-lingual section surface is semicircular, and the lingual side of the connecting component along the buccal-lingual section surface is the buccal side of the crown of the molar where the connecting component is located.

[0012] The utility model discloses the beneficial effect is:

[0013] The utility model discloses the beneficial effect is: BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic diagram of the utility model;

[0015] Figure 2 It is the whole structure schematic diagram of the utility model;

[0016] Figure 3Fig. 1 is a structure diagram of the connecting component;

[0017] Figure 4 Fig. 4 is a partial diagram of the connection between the face-bow and the bracketless appliance;

[0018] Figure 5 Fig. 5 is a single-side horizontal view of the bracketless appliance body;

[0019] Figure 6 Fig. 6 is a mesial end plan view of the connecting component;

[0020] Figure 7 Fig. 7 is a distal end plan view of the connecting component;

[0021] Figure 8 Fig. 8 is a cross-sectional view of the connecting component along the labial-buccal direction from the protruding part;

[0022] Figure 9 Fig. 9 is a cross-sectional view of the connecting component along the labial-buccal direction from the concave part;

[0023] Figure 10 Fig. 10 is a cross-sectional view of the connecting component along the mesial-distal direction in the horizontal direction;

[0024] Figure 11 Fig. 11 is a cross-sectional view of the connecting component along the mesial-distal direction in the vertical direction.

[0025] 1-bracketless appliance body, 2-face-bow body, 101-connecting component, 102-mesial end hole of the connecting component, 201-free end of the face-bow inner bow, 3-stop component of the connecting component, 4-protruding part, 5-concave part, 6-distal end of the connecting component, 7-mesial end of the connecting component. DETAILED DESCRIPTION

[0026] The utility model will be described in further detail below in combination with the drawings and examples.

[0027] As shown in Figure 1 and Figure 2 , a bracketless appliance combined with a face-bow device comprises a bracketless appliance body 1, and a connecting component 101 is arranged on the buccal side of the first or second maxillary molar of the bracketless appliance body, which can be considered as a protrusion of the bracketless appliance body and is integrally manufactured with the bracketless appliance body.

[0028] As shown in Figure 3 , the connecting component 101 is a semi-through structure along the mesial-distal direction, and the mesial face 7 is provided with a hole 102, and the distal face 6 is a closed face without holes. The inside of the connecting component is a hollow structure with a receiving cavity, and the free end of the inner bow 201 of the face-bow can be flexibly inserted into or pulled out of the receiving cavity, as shown in Figure 4 .

[0029] The position of the connecting component 101 along the tooth arrangement direction is generally parallel to the occlusal surface, and the position of the connecting component 101 along the tooth long axis direction is located at the 1 / 2 region of the buccal side of the molar crown where the connecting component is located, as shown in Figure 5 The mesial surface of the connecting component 101 is consistent with the mesial surface position of the molar where the connecting component is located, and the distal surface of the connecting component 101 is consistent with the distal surface position of the molar where the connecting component is located, as shown in Figure 3 .

[0030] If the thickness of the bracket-free appliance film is 0.8 mm, and the diameter of the outer bow and the inner bow is 1.2 mm, the height H of the connecting component 101 along the tooth long axis direction is defined as: 2.8 mm ≤ H ≤ 4.8 mm; and the width W of the connecting component 101 along the buccal-lingual direction is defined as: 6.8 mm ≤ W ≤ 11.8 mm.

[0031] In the technical solution, the connecting component 101 has a tooth-shaped structure, which can firmly fix the free end of the outer bow and the inner bow after being inserted into the hole of the connecting component, and the inner bow cannot be displaced or removed. As shown in Figure 3 The hole diameter of the mesial hole 102 of the connecting component 101 matches the diameter of the outer bow and the inner bow, which can limit the displacement of the outer bow in the forward and backward directions after the outer bow is inserted; and the length of the distal stop component 3 of the connecting component 101 is 1 / 4 of the length of the connecting component, which can limit the further insertion of the free end of the outer bow and the inner bow in the distal direction after the outer bow is inserted, thereby avoiding the damage of the connecting component after being inserted and removed by the outer bow for many times.

[0032] The free end of the outer bow and the inner bow is inserted into the hole of the mesial end of the connecting component 101, and penetrates the tooth 4 of the connecting component, and the tooth 5 of the connecting component is used to limit the horizontal displacement of the free end of the outer bow and the inner bow, as shown in Figure 5 .

[0033] The tooth-shaped convex section of the connecting component 101 along the buccal-lingual surface is semicircular, and the lingual side of the buccal-lingual surface is the buccal crown of the molar where the connecting component is located, which is a hollow shape, as shown in Figure 8 The tooth-shaped concave section of the connecting component 101 along the buccal-lingual surface is semicircular, and the lingual side of the buccal-lingual surface is the buccal crown of the molar where the connecting component is located, which is also a hollow shape, as shown in Figure 9 The buccal side of the connecting component 101 along the mesial-distal direction is tooth-shaped, as shown in Figure 10 The lingual side of the connecting component 101 along the mesial-distal direction is the buccal crown of the molar where the connecting component is located; and the longitudinal section of the connecting component 101 along the mesial-distal direction is rectangular, as shown in Figure 11 .

Claims

1. A bracket-free appliance combined with an extraoral force device, comprising a bracket-free appliance body, a connecting component is provided on the buccal side of the first or second molar of the maxillary of the bracket-free appliance body, characterized in that: The connecting component can be understood as a protrusion of the bracket body, and the proximal-distal direction of the connecting component is a half-through structure, and the inside of the half-through structure is a hollow structure with a receiving cavity for flexible insertion or extraction of the free end of the lip bow or the face bow.

2. The bracket-less appliance of claim 1, wherein, The connecting component is a half-through structure with a closed distal end and an opening at the proximal end, and the buccal side is a tooth-shaped structure with concave-convex.

3. The bracket-less appliance of claim 2, wherein, The position of the connecting component along the tooth arrangement direction is generally parallel to the occlusal surface, the position of the connecting component along the tooth long axis direction is located at the 1 / 2 region of the buccal side of the molar crown where the connecting component is located, the proximal surface of the connecting component is consistent with the position of the proximal surface of the molar where the connecting component is located, and the distal surface of the connecting component is consistent with the position of the distal surface of the molar where the connecting component is located.

4. The bracket-less appliance of claim 2, wherein, The length of the receiving cavity part of the connecting component is 3 / 4 of the length of the connecting component. The height H of the connecting component along the tooth long axis direction is: H = d + 2t + p The width W of the connecting component along the buccal-lingual direction is: W = d + 2t + q Wherein d is the diameter of the lip bow or the face bow, t is the thickness of the bracket film, and p and q are preset values, wherein 0mm ≤ p ≤ 2mm, and 4mm ≤ q ≤ 9mm.

5. The bracket-less appliance of claim 2, wherein, The buccal side of the connecting component along the buccal-lingual surface section is semicircular, and the lingual side of the connecting component along the buccal-lingual surface section is the buccal side of the crown of the molar where the connecting component is located; the buccal side of the connecting component along the proximal-distal direction of the transverse section is a tooth-shaped structure with concave-convex, and the lingual side of the connecting component along the proximal-distal direction of the transverse section is the buccal side of the crown of the molar where the connecting component is located; and the longitudinal section of the connecting component along the proximal-distal direction is rectangular.

6. The bracket-less appliance of claim 2, wherein, The hole diameter of the proximal opening of the connecting component matches the diameter of the free end of the lip bow or the face bow inserted therein, so as to limit the displacement or extraction of the free end of the lip bow or the face bow in the front-back direction after insertion; and the length of the distal stop component of the connecting component is 1 / 4 of the length of the connecting component, and is used to stop the further insertion of the free end of the lip bow or the face bow in the distal direction.

7. The bracket-less appliance of claim 2, wherein, The free end of the lip bow or the face bow is inserted into the opening at the proximal end of the connecting component and penetrates the teeth of the connecting component; and the concave teeth of the connecting component are used to stop the displacement of the free end of the lip bow or the face bow in the horizontal direction.

8. The bracket-less appliance in combination with an extra-oral force device of claim 1, wherein, The bracket and the connecting component arranged thereon are integrally processed.

Images