CN220327570U - Adjustable jaw retainer - Google Patents

Abstract

The utility model discloses an adjustable jaw position retainer, which comprises a maxillary tooth sleeve, a mandibular tooth sleeve and at least one jaw position retaining buckling component, wherein the maxillary tooth sleeve is suitable for being sleeved into maxillary teeth and fixed on the maxillary teeth, the mandibular tooth sleeve is suitable for being sleeved into mandibular teeth and fixed on the mandibular teeth, and the at least one jaw position retaining buckling component is connected between the maxillary tooth sleeve and the mandibular tooth sleeve; wherein the jaw position retaining snap-fit component is adapted to be just disengaged or just engaged when the mandibular teeth sleeve is in an extreme extended position relative to the maxillary teeth sleeve in a fore-aft direction; the jaw position maintaining and buckling component is also suitable for maintaining the position relation of the mandibular teeth sleeve relative to the maxillary teeth sleeve after being connected and buckled together. The novel bicycle is strong in matching performance, convenient to adjust and good in comfort.

Description

Adjustable jaw retainer

Technical Field

The utility model relates to an adjustable jaw retainer.

Background

Currently, orthodontic treatment involves the use of dental appliances such as braces and holders, which have been explored as potential treatment options for Obstructive Sleep Apnea (OSA). The rationale behind this is that the use of a jaw retainer can help adjust the position of the chin and tongue, helping to open the airway and reduce the severity of obstructive sleep apnea.

One jaw retainer that has been investigated for treating OSA is a Mandibular Advancement Device (MAD), such as the one described in the chinese patent application publication No. CN102170844a, which discloses a mandibular advancement device with positive positioning hinges, which is custom-made for the patient's mouth, working by advancing the mandible forward, which helps to open the airway and reduce the incidence of apneas and hypopneas during sleep. MAD is typically worn during sleep and is considered a relatively noninvasive option for OSA treatment; also, another jaw retainer used to treat OSA is a Maxillary Expansion Device (MED). The device aims to widen the upper jaw, which helps create more space in the airway and reduces the severity of OSA. Like MAD, MED is typically worn during sleep and is considered a non-invasive treatment option.

However, the existing dental instruments for treating OSA are usually selected from silica gel occlusion type or connecting rod combination type, and the former is difficult to wear firmly due to the fact that the dental instruments cannot be completely matched with the dental model of a patient, and fall off frequently at night; the latter is then because the unable accurate adjustment mandibular advancement position size of connecting rod just influences the action of opening a mouth, very easily causes the discomfort of wearing at night, and its connecting rod part is because too big easily causes the intraoral foreign matter sense serious simultaneously, influences the comfort level of wearing, and user's acceptance level is low, is unfavorable for marketing.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the adjustable jaw retainer which is high in matching performance, convenient to adjust and good in comfort.

In order to solve the technical problems, the technical scheme of the utility model is as follows: an adjustable jaw retainer comprising:

a maxillary tooth casing adapted to be fitted over and secured to the maxillary teeth;

a mandibular teeth sleeve adapted to nest in and be secured to the mandibular teeth;

at least one jaw position retaining buckle part connected between the upper jaw tooth sleeve and the lower jaw tooth sleeve; wherein,

the jaw position retaining snap component is adapted to be just disengaged or just connected when the mandibular teeth sleeve is in an extreme extended position relative to the maxillary teeth sleeve in a fore-aft direction;

the jaw position maintaining and buckling component is also suitable for maintaining the position relation of the mandibular teeth sleeve relative to the maxillary teeth sleeve after being connected and buckled together.

Further, the jaw position maintaining fastening component is also suitable for allowing a certain displacement of the maxillary tooth cover and the mandibular tooth cover in any direction after the connection and fastening together in order to alleviate discomfort caused by long-term wearing of the subject.

Further, the displacement is a displacement of 2 to 10mm in the up-down direction and/or a displacement of 2 to 15mm in the front-back direction.

Further, the jaw-holding clasp part includes:

the first buckling block is connected to one of the upper jaw tooth sleeve and the lower jaw tooth sleeve;

the second buckling block is connected to the other one of the upper jaw tooth sleeve and the lower jaw tooth sleeve;

the first buckling block is provided with a first buckling concave part and a first buckling convex part;

the second buckling block is provided with a second buckling concave part in buckling fit with the first buckling convex part and a second buckling convex part in buckling fit with the first buckling concave part.

Further, when the mandibular teeth sleeve is in an extremely backward extending position with respect to the maxillary teeth sleeve in the front-rear direction, the front end of the first engaging convex portion contacts the rear wall of the first engaging concave portion, and the front end of the second engaging convex portion contacts the rear wall of the second engaging concave portion;

and/or when the mandibular teeth sleeve is in a closed limit position relative to the maxillary teeth sleeve in the up-down direction, the upper side wall of the first buckling convex part contacts the upper side wall of the first buckling concave part, and the lower side wall of the second buckling convex part props against the lower side wall of the second buckling concave part;

and/or when the mandibular teeth sleeve is in an open limit position relative to the maxillary teeth sleeve in the up-down direction, the lower side wall of the first buckling convex part contacts the lower side wall of the first buckling concave part, and the upper side wall of the second buckling convex part contacts the upper side wall of the second buckling concave part.

Further, at least a front portion of the first snap tab and/or the second snap tab includes a non-smooth face portion with a non-smooth outer wall.

Further, the non-smooth face portion is a pagoda-shaped connecting joint portion including at least two joints connected in the front-rear direction.

Further, in order to adjust the extension length of the first engagement convex portion and/or the second engagement convex portion, a breaking mechanism for applying a breaking force to break is provided between adjacent segments, which matches the tolerance of the subject to the mandibular leading state.

Further, the breaking off mechanism is a point broken line or a groove.

Further, the first engaging concave portion and the first engaging convex portion are provided adjacently in the up-down direction;

the second engaging concave portion and the second engaging convex portion are also provided adjacently in the up-down direction.

Further, the mouth dimensions of the first and second engagement recesses are smaller than the inside dimension.

After the technical scheme is adopted, the upper jaw teeth are sleeved with the upper jaw teeth and fixed on the upper jaw teeth through the upper jaw teeth sleeve, the lower jaw teeth are sleeved with the lower jaw teeth and fixed on the lower jaw teeth, the jaw position retaining buckling parts are just separated or just connected when the lower jaw teeth sleeve is positioned at an extremely extending position relative to the upper jaw teeth sleeve in the front-back direction, the jaw position retaining buckling parts are connected and buckled together to retain the position relation of the lower jaw teeth sleeve relative to the upper jaw teeth sleeve, so that the relative position relation of the lower jaw teeth relative to the upper jaw teeth is retained, the purpose of retaining the teeth jaw positions is realized, the treatment of obstructive sleep apnea is realized, the matching performance is strong, the adjustment is convenient, and the comfort is good.

Drawings

FIG. 1 is a schematic diagram of the front face structure of the maxillary and mandibular tooth sockets of the present utility model prior to occlusion;

FIG. 2 is a bottom view of the maxillary tooth sheath of the present utility model;

FIG. 3 is a top view of the mandibular tooth sheath of the present utility model;

fig. 4 is a schematic view of the structure of the maxillary dental sleeve and mandibular dental sleeve of the present utility model in a state where the jaw position is kept engaged by the engaging member (fitted state).

Fig. 5 is a partial right side view (extracted state) of the maxillary dental sleeve and mandibular dental sleeve of the present utility model in a state in which the jaw position maintaining clasp member is not occluded.

Fig. 6 is a schematic view of the forward and rearward limit displacement of the jaw retaining clasp of the present utility model (alternate extraction & nesting condition).

Fig. 7 is a schematic view showing the vertical displacement of the jaw retaining engagement member of the present utility model (alternate extraction & nesting conditions).

Fig. 8 is a schematic view showing the vertical displacement of the jaw-position-maintaining fastening member according to the present utility model (the fitted state).

Fig. 9 is a schematic connection view of the jaw-position-maintaining fastening component of the present utility model.

Fig. 10 is a schematic view showing the connection of the jaw-position-maintaining fastening component after the length adjustment (the pulled-out state) according to the present utility model.

Detailed Description

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

As shown in fig. 1 to 10, an adjustable jaw retainer includes:

a maxillary tooth casing 10 adapted to be fitted into and fixed to a maxillary tooth;

a mandibular teeth sleeve 20 adapted to fit over and be secured to mandibular teeth;

at least one jaw position holding fastening part connected between the upper jaw teeth sleeve 10 and the lower jaw teeth sleeve 20; wherein,

the jaw position maintaining clasp parts are adapted to be just detached or just attached when the mandibular teeth sheath 20 is in an extremely advanced position relative to the maxillary teeth sheath 10 in the front-rear direction;

the jaw position maintaining clasp assembly is also adapted to maintain the positional relationship of the mandibular teeth sheath 20 relative to the maxillary teeth sheath 10 after the connection clasps together. Maintaining the positional relationship of the mandibular teeth sheath 20 relative to the maxillary teeth sheath 10, such as the mandibular lead, achieves special effects through the relative anterior extension of the mandible to the maxilla, such as reducing the severity of the tongue base fallback during nocturnal sleep in sleep apnea patients.

The adjustable jaw position retainer of this embodiment is used for adjusting and keeping upper and lower jaw position relation, specifically speaking, under the effect of adjustable jaw position retainer, drives the lower jaw and moves forward, reaches the effect that the lower jaw stretched forward to open the back tooth interlock, can stabilize the mutual positional relationship between upper jaw and lower jaw interlock, restriction lower jaw is in the position of stretching forward and possess relatively stable interlock relation simultaneously, helps opening the air flue and reduces the incidence of apnea and hypopnea during sleep.

In the present embodiment, the maxillary and mandibular dental sleeves 10 and 20 are divided into front and rear dental regions, respectively. Wherein the posterior region comprises premolars and molars, the teeth being shown as 4-8 in FDI notation and the anterior region FDI notation being shown as 1-3. The mesial surface and the distal surface are two surfaces of the crown adjacent to the adjacent tooth, and are collectively called the adjacent surfaces. The side closer to the midline of the face is called the mesial side, and the side farther from the midline of the face is called the distal side.

The front teeth area of the maxillary tooth cover 10 may be used to receive the middle incisors, the side incisors, and the cuspids of the maxillary teeth, the rear teeth area of the mandibular tooth cover 20 may be used to receive the upper front molars, the lower front molars, the upper molars, the lower molars, and the third molars of the maxillary teeth, the front teeth area of the mandibular tooth cover 20 may be used to receive the middle incisors, the side incisors, and the cuspids of the mandibular teeth, and the rear teeth area of the mandibular tooth cover 20 may be used to receive the upper front molars, the lower front molars, the upper molars, the lower molars, and the third molars of the mandibular teeth.

The maxillary tooth sheath 10 and the mandibular tooth sheath 20 are prepared according to the maxillofacial CT data of a subject, can be tightly wrapped outside teeth, and have good wearing stability.

In the present embodiment, two jaw-position-maintaining fastening parts are provided, but not limited thereto.

The jaw position maintaining buckle component is also adapted to allow a certain amount of displacement of the maxillary and mandibular tooth sockets 10 and 20 in any direction after the connection is buckled together, as shown in fig. 4.

Specifically, the displacement amount is a displacement amount of 2 to 10mm in the up-down direction and/or a displacement amount of 2 to 15mm in the front-back direction.

Specifically, in the present embodiment, as shown in fig. 4 to 10, the jaw-position-maintaining fastening member has a structure including:

a first fastening block 11 connected to the maxillary dental socket 10;

a second fastening block 21 coupled to the mandibular teeth sheath 20;

the first buckling block 11 is provided with a first buckling concave part and a first buckling convex part;

the second fastening block 21 is provided with a second fastening concave portion fastened and matched with the first fastening convex portion and a second fastening convex portion fastened and matched with the first fastening concave portion.

In this embodiment, as shown in fig. 1 to 4, the first fastening block 11 has a first mesial surface 111, a first distal surface 112, a first cheek surface 113, and a first tongue surface 114 around the first fastening block as viewed from the up-down direction; the second fastening block 21 has a second mesial surface 211, a second distal surface 212, a second buccal surface 213, and a second lingual surface 214 around.

In this embodiment, the first fastening block 11 is specifically connected to the outside of the occlusal surface of the posterior region on the maxillary dental sleeve 10, and the second fastening block 21 is specifically connected to the outside of the occlusal surface of the posterior dental sleeve 20. The first fastening block 11 and the maxillary dental sleeve 10 may be integrally formed or thermally synthesized, and the second fastening block 21 and the mandibular dental sleeve 20 may be integrally formed or thermally synthesized.

When the mandibular teeth sleeve 20 is in an extremely backward extending position with respect to the maxillary teeth sleeve 10 in the front-rear direction, the front end of the first buckling protrusion contacts the rear wall of the first buckling recess, and the front end of the second buckling protrusion contacts the rear wall of the second buckling recess;

when the mandibular teeth sleeve 20 is in a closed limit position relative to the maxillary teeth sleeve 10 in the up-down direction, the upper side wall of the first buckling protrusion contacts the upper side wall of the first buckling recess, and the lower side wall of the second buckling protrusion abuts against the lower side wall of the second buckling recess;

when the mandibular teeth sleeve 20 is in an open limit position with respect to the maxillary teeth sleeve in the up-down direction, the lower side wall of the first buckling protrusion contacts the lower side wall of the first buckling recess, and the upper side wall of the second buckling protrusion contacts the upper side wall of the second buckling recess.

In this embodiment, as shown in fig. 4, at least the front portions of the first engaging convex portion and the second engaging convex portion include a non-smooth face portion whose outer wall is a non-smooth face. The non-smooth face contact is in a non-close fit state in a double-buckle state, and a small amount of displacement can be still maintained.

Further, the non-smooth face is a pagoda-shaped connecting joint part, and the connecting joint part comprises at least two joints connected in the front-rear direction; wherein, the connection joint part of the first buckling convex part is a first connection joint part 115; the connecting joint portion of the second fastening convex portion is a second connecting joint portion 215.

Specifically, a breaking and disconnecting mechanism for applying breaking force to break is arranged between adjacent sections; the breaking and breaking mechanism can adjust the length of the convex part in a manual breaking or mechanical cutting mode so as to match the tolerance degree of the testee to the mandibular leading state.

In this embodiment, the breaking and breaking mechanism may be in the form of a broken line, and a groove may be provided.

Specifically, the hardness of the jaw-site holding clasp part may be greater than the hardness of the sleeve to satisfy that the wear of the jaw-site holding clasp part is greater than the wear of the sleeve; the sleeves here are specifically a maxillary tooth sleeve 10 and a mandibular tooth sleeve 20.

As shown in fig. 4, the first engaging concave portion and the first engaging convex portion are provided adjacently in the up-down direction;

the second engaging concave portion and the second engaging convex portion are also provided adjacently in the up-down direction.

As shown in fig. 4, the mouth dimensions of the first engagement recess and the second engagement recess are smaller than the inside dimension.

The technical problems, technical solutions and advantageous effects solved by the present utility model have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present utility model and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims (10)

1. An adjustable jaw retainer, comprising:

a maxillary tooth sheath (10) adapted to fit over and be secured to the maxillary teeth;

a mandibular teeth sleeve (20) adapted to nest and be secured to the mandibular teeth;

at least one jaw position retaining fastening member connected between the maxillary tooth socket (10) and the mandibular tooth socket (20); wherein,

the jaw position retaining snap-fit component is adapted to be just disengaged or just connected when the mandibular tooth socket (20) is in an extreme extended position relative to the maxillary tooth socket (10) in the front-to-back direction;

the jaw position maintaining and buckling component is also suitable for maintaining the position relation of the mandibular teeth sleeve (20) relative to the maxillary teeth sleeve (10) after being connected and buckled together;

the jaw-holding clasp part includes:

a first buckling block (11) connected to one of the maxillary tooth sheath (10) and the mandibular tooth sheath (20);

a second buckling block (21) connected to the other of the maxillary tooth sheath (10) and the mandibular tooth sheath (20);

the first buckling block (11) is provided with a first buckling concave part and a first buckling convex part;

the second buckling block (21) is provided with a second buckling concave part in buckling fit with the first buckling convex part and a second buckling convex part in buckling fit with the first buckling concave part.

2. The adjustable jaw retainer of claim 1 wherein,

the jaw position maintaining and buckling component is also suitable for allowing the upper jaw tooth sleeve (10) and the lower jaw tooth sleeve (20) to have displacement in any direction after being connected and buckled together.

3. An adjustable jaw retainer as claimed in claim 2, wherein,

the displacement is 2-10 mm in the up-down direction and/or 2-15 mm in the front-back direction.

4. The adjustable jaw retainer of claim 1 wherein,

when the mandibular tooth sheath (20) is in an extremely backward extending position relative to the maxillary tooth sheath (10) in the front-back direction, the front end of the first buckling convex part contacts the rear wall of the first buckling concave part, and the front end of the second buckling convex part contacts the rear wall of the second buckling concave part;

and/or when the mandibular tooth sheath (20) is in a closed limit position relative to the maxillary tooth sheath (10) in the up-down direction, the upper side wall of the first buckling convex part contacts the upper side wall of the first buckling concave part, and the lower side wall of the second buckling convex part is propped against the lower side wall of the second buckling concave part;

and/or when the mandibular teeth sleeve (20) is at an open limit position relative to the maxillary teeth sleeve in the up-down direction, the lower side wall of the first buckling convex part contacts the lower side wall of the first buckling concave part, and the upper side wall of the second buckling convex part contacts the upper side wall of the second buckling concave part.

5. The adjustable jaw retainer of claim 1 wherein,

at least the front part of the first buckling convex part and/or the second buckling convex part comprises a non-smooth surface part with a non-smooth outer wall.

6. The adjustable jaw retainer of claim 5 wherein,

the non-smooth face is a pagoda-shaped connecting joint portion including at least two joints connected in the front-rear direction.

7. The adjustable jaw retainer of claim 6 wherein,

a breaking and disconnecting mechanism for applying breaking force to break is arranged between the adjacent sections.

8. The adjustable jaw retainer of claim 7 wherein,

the breaking and breaking mechanism is a point broken line or a groove.

9. The adjustable jaw retainer of claim 1 wherein,

the first buckling concave part and the first buckling convex part are adjacently arranged in the up-down direction;

the second engaging concave portion and the second engaging convex portion are also provided adjacently in the up-down direction.

10. The adjustable jaw retainer of claim 1 wherein,

the mouth size of the first buckling concave part and the second buckling concave part is smaller than the inner size.