CN220423990U - Molar back-pushing tooth-engaging pad assembly and orthodontic device - Google Patents

Abstract

The utility model relates to a molar back-pushing bite block assembly, comprising: the dental pad body is coated on a plurality of teeth on the first side of the tooth-missing gap to form a backward anchorage of the pushing and grinding teeth; and the extension part comprises an elastic part, a first end connected with the bite block body at the tooth deficiency gap and a second end connected with the molar teeth on the second side of the tooth deficiency gap, wherein the first end of the extension part is connected with the bite block body on the lingual side. The molar back-pushing bite block assembly is convenient to use and simple in structure. The utility model also relates to an orthodontic device.

Description

Molar back-pushing tooth-engaging pad assembly and orthodontic device

Technical Field

The utility model relates to the field of orthodontic, in particular to a molar back-pushing bite-block assembly and an orthodontic device.

Background

Restoration of missing posterior teeth (including premolars, molars) by implantation is the option for many patients. However, due to the displacement or inclination of the teeth on both sides of the edentulous (edentulous space), a change in the edentulous space is generally caused, resulting in a reduction of the edentulous space. For example, a tooth in the far of the edentulous space being tilted toward the edentulous space may be reduced or lost to the edentulous space. Simultaneously, the inclined teeth are easy to form occlusion lock knot with the opposite jaw teeth.

Disclosure of Invention

To solve the above technical problem, a first aspect of the present utility model provides a molar back-pushing bite block assembly, the molar back-pushing bite block assembly comprising: the dental pad body is coated on a plurality of teeth on the first side of the tooth-missing gap to form a backward anchorage of the pushing and grinding teeth; and the extension part comprises an elastic part, a first end connected with the bite block body at the tooth deficiency gap and a second end connected with the molar teeth on the second side of the tooth deficiency gap, wherein the first end of the extension part is connected with the bite block body on the lingual side.

Optionally, the extension portion is made of a metal wire, and the elastic portion of the extension portion is formed by repeatedly bending the metal wire.

Optionally, the metal wire is provided as a stainless steel round wire or an australian wire.

Optionally, the second end of the extension is connected to the molars by abutment to create a pushing force rearward on the molars.

Optionally, the first end of the extension is embedded in the bite block body to be fixedly connected with the bite block body, and the second end of the extension includes one or more abutments for the molars.

Optionally, the one or more abutments include a first abutment that abuts lingually against the molar.

Optionally, the second end of the extension is configured as a hook to create a reverse thrust to the molar traction.

A second aspect of the present utility model provides an orthodontic apparatus comprising: a segment bow structure, the segment bow structure comprising: labial brackets, archwires and pushing springs fixed on teeth at two sides of the tooth gap so as to form pushing force on labial side of the molar; and the aforementioned molar posterior push bite block assembly to create a push force on the molar on the mesial lingual side.

Drawings

In the following, by way of example, the drawings of exemplary embodiments of the utility model are shown, the same or similar reference numbers being used in the various drawings to designate the same or similar elements. In the accompanying drawings:

fig. 1 shows a schematic view of an orthodontic treatment of a molar post-pushing bite block assembly according to a first embodiment of the present utility model.

Fig. 2 shows a schematic view of an orthodontic treatment of a molar post-pushing bite block assembly according to a second embodiment of the present utility model.

Detailed Description

In the present disclosure, the term "and/or" is intended to cover all possible combinations and subcombinations of the listed elements, including any, subcombinations, or all of the elements listed individually, without necessarily excluding other elements.

In the present utility model, unless otherwise indicated, the terms "first," "second," and the like are used to describe various elements and are not intended to limit the positional relationship, timing relationship, or importance of these elements, but are merely used to distinguish one element from another.

In the present utility model, unless otherwise indicated, the terms "front, rear, upper, lower, left, right" and the like refer to an azimuth or a positional relationship generally based on that shown in the drawings, and are merely for convenience of description and simplification of description, and are not to be construed as limiting the scope of protection of the present utility model.

Restoration of missing posterior teeth (including premolars, molars) by implantation is the option for many patients. However, due to the displacement or growth of teeth on both sides of the edentulous (edentulous space), a change in the edentulous space is often caused, resulting in a reduction or expansion of the edentulous space. For example, tilting the teeth on either side of the gap toward the gap reduces or loses the gap. In addition, the above situation also easily causes a snap lock. To solve the above problems, it is necessary to open or close the tooth-missing gap and release the snap lock knot.

In the related art, the segment arch technology opens up the tooth-missing gap by bonding bracket at labial sides of teeth at both sides of the tooth-missing gap and relying on archwire and pushing spring, so as to obtain enough planting gap, however, in order to release the occlusion lock, a heightening component is needed to be matched. A plurality of apparatuses cooperation are used for the orthodontic degree of difficulty increases, the other operation spends time of chair is long, and influences orthodontic efficiency, and reduces patient's comfort level. In addition, because the segment arch technique uses intra-jaw anchorage, the limited anchorage provided by the mesial teeth may cause the mesial teeth to twist and tilt, thereby allowing unintended tooth displacement to be obtained for the mesial teeth providing the anchorage. In addition, the segment arching technique utilizes archwires and push springs to push the ground teeth backward, and the force-bearing points of the ground teeth to be pushed backward are positioned on the buccal side (outside) of the teeth, which easily causes the ground teeth to be twisted and inclined.

Fig. 1 shows a schematic view of an orthodontic treatment of a molar post-pushing bite block assembly according to a first embodiment of the present utility model. Wherein, the gum 500a includes a plurality of teeth 300a and the back-pushed teeth 400a, and a tooth-missing gap 200a exists between the teeth. The molar back push bite block assembly 100a includes a bite block body 102a and an extension 104a. The bite block body 102a covers the plurality of teeth 300a on the side of the missing tooth gap 200a, and the extension 104a extends from the bite block body 102a in the direction of the rear push-milled teeth 400a and abuts against the mesial portion of the rear push-milled teeth 400 a. When extension 104a is opened and forced, a pushing force is created against the molars rearwardly. The extension 104a in fig. 1 is integrally formed, and is made of stainless steel round wire, and includes: the resilient portion 106a, the first end 108a of the extension and the second end 110a of the extension. Wherein the second end 110a of the extension portion includes an abutment 112a. The elastic portion 106a of the extension portion is formed by repeated bending. The elastic portion in fig. 1 is formed like a plurality of hairpin bends. The first end 108a of the extension is embedded within the bite block body 102a (embedded in the bite block body 102a to be retained) to be fixedly connected with the bite block body 102 a; the abutment 112a of the second end 110a of the extension abuts the pushed-back tooth 400a in a point contact manner.

By creating a rearward thrust on the retropushed molar 400a in the mesial rather than the buccal side, torsional tilting of the retropushed molar 400a may be avoided.

In some embodiments, the bite block body is secured to a plurality of teeth by a retention device. Wherein, the retention device includes an interproximal hook and an arrow clasp. The retention device is prior art and will not be described in detail herein.

In some embodiments, the bite block body may cover all of the teeth on one side of the plurality of gaps other than the gaps.

In some embodiments, the elastic portion of the extension portion is detachably connected to the first end of the extension portion and the second end of the extension portion, respectively or alternatively. Further, the detachable portion can be angularly adjusted by a snap or screw. In some embodiments, the second end of the extension includes a plurality of abutments that abut the back-pushed tooth in line contact to form a rearward push force. By providing a plurality of abutting portions, a pushing force can be finely applied to the pushed-back teeth.

Fig. 2 shows a schematic view of an orthodontic treatment of a molar post-pushing bite block assembly according to a second embodiment of the present utility model. Wherein the molar back push bite block assembly 100b includes a bite block body 102b and an extension 104b. The bite block body 102b covers the plurality of teeth 300b on the side of the missing tooth gap 200b, and the extension portion 104b extends from the bite block body 102b in the direction of the rear push-milled teeth 400b and abuts against the lingual side of the rear push-milled teeth 400 b. The extension 104b in fig. 2 is provided as an integral molding, including: the resilient portion 106b, the first end 108b of the extension portion, and the second end 110b of the extension portion. Wherein the second end 110b of the extension includes a hook 112b. The hook portion 112b of the second end 110b of the extension in fig. 2 is coupled to the back-pushed molar 400b to apply a reverse pushing force (i.e., a forward pulling force) to the back-pushed molar 400b to cause the back-pushed molar 400b to move proximally, thereby compressing the edentulous space 200b.

In some embodiments, the aforementioned molar posterior bite block assembly, together with the segmented arching structure, forms an orthodontic device. Wherein, the segment bow structure includes: labial brackets, archwires and pushing springs fixed on teeth at two sides of the tooth gap so as to form pushing force on the cheek side of the pushed and ground teeth; and the molar posterior pushing bite block assembly forms a pushing force on the mesial lingual side of the posteriorly pushed molar. By this arrangement, the twisting action can be antagonized, and the pushing force is applied to both sides of the cheek and tongue, so that the posterior teeth are displaced.

It should be understood that the drawings illustrate mandibular orthodontics, and that the embodiments of the present application are equally applicable to maxillary orthodontics.

In some embodiments, the extension is a stainless steel wire having a diameter of 0.5 millimeters or an australian wire having a diameter of 0.018 inches.

According to some embodiments of the application, the bite lock knot can be directly opened by pushing the bite block assembly after grinding teeth, so that the jaw teeth are uniformly contacted with the bite block, the comfort level is remarkably improved, the bite lock knot contact effect is stable, and the tooth moving efficiency is improved. In addition, the whole bite block body is used for providing anchorage, so that unexpected tooth displacement of the near-middle teeth of the gaps is avoided. By adjusting the stress point of the extension part to be positioned in the middle of the back-pushed and ground tooth or near the lingual side, the back-pushed and ground tooth can be prevented from being twisted.

The various embodiments presented above are merely exemplary and are in no way meant to limit the scope of the utility model. The innovations described herein and various variations thereof are within the intended scope of the utility model. Furthermore, the subject matter described in the present disclosure and claims is intended to cover and embrace all suitable technical variations.

Claims (8)

1. A molar posterior bite block assembly, the molar posterior bite block assembly comprising:

the dental pad body is coated on a plurality of teeth on the first side of the tooth-missing gap to form a backward anchorage of the pushing and grinding teeth; and

the extension part comprises an elastic part, a first end connected with the bite block body at the tooth deficiency gap and a second end connected with the molar on the second side of the tooth deficiency gap, wherein the first end of the extension part is connected with the bite block body on the lingual side.

2. The molar push-back bite block assembly of claim 1, wherein the extension portion is configured as a wire material and the resilient portion of the extension portion is configured to be formed from repeated bending of the wire.

3. The molar push-back bite block assembly of claim 2, wherein the wire is provided as a stainless steel round wire or an australian wire.

4. The molar posterior bite block assembly of claim 3, wherein the second end of the extension is abuttingly connected to the molar to create a thrust force posteriorly on the molar.

5. The molar push-back bite block assembly of claim 4, wherein a first end of the extension is embedded within the bite block body for secure connection therewith and a second end of the extension comprises one or more abutments for the molar.

6. The molar push-back bite block assembly of claim 5, wherein the one or more abutments comprise a first abutment that lingually abuts the molar.

7. The molar push-back bite block assembly of claim 2, wherein the second end of the extension portion is configured as a hook portion to create a reverse thrust force on the molar pull.

8. An orthodontic apparatus, comprising:

a segment bow structure, the segment bow structure comprising: labial brackets, archwires and push springs fixed to teeth on both sides of the tooth-missing gap to form a pushing force on the labial side of the molar; and

the molar posterior push bite block assembly according to any one of claims 1-7, to create a push force on the molar on the mesial lingual side.