JPS6214832Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an orthodontic device used for the treatment of malocclusion, and particularly to a bracket that is attached to a posterior tooth and is capable of temporarily fixing the end of an archwire.

In dental care whose main purpose is to treat dental malocclusion, each tooth 1a...
Brackets 2a...2f as wire holding devices are fixed to the tongue side of 1f, and these brackets 2
a...2f, at least 1 as shown in Figure 2
A real archwire 3 is sequentially fitted and fixed, and the elasticity of the archwire 3 is used to correct, for example, the front teeth 1f. This method of orthodontics from the lingual side has already been proposed by the applicant, but even earlier, a method was used in which brackets 2a...2f were fixed to the labial sides of each tooth 1a...1f. It is.

In any of these methods,
In order to hold both ends 4, 4 of the archwire 3, a bracket 2a is generally attached to the tooth-fitting band 5 at the rearmost teeth 1a, 1a, as shown in FIGS. 4 and 5.
is used.

Conventionally, in this last tooth bracket 2a,
In order to hold the distal ends 4, 4 of the archwire 3, a wire inserting groove 6 as shown in FIG. 4 or a wire inserting tube 7 fixed as shown in FIG. 5 are used. It was getting worse. In a bracket formed with a wire insertion groove 6 as shown in Fig. 4, when the archwire 3 is fitted, it is generally fitted into all the brackets 2a...2f sequentially from above on the mandibular side and from below on the maxillary side. At this time, there is an advantage that the archwire 3, which has been curved in advance into a predetermined shape, is not deformed and correction can be performed accurately. However, both ends 4, 4 of the archwire 3
Because they are not fixed and are loose, they can damage the tongue and oral mucosa, and even if the front teeth are inserted, the back teeth may come off.
On the other hand, even if the rear tooth side is fitted, the front tooth side may come off, making it difficult to operate. On the other hand, the bracket with the tube 7 fixed thereto as shown in FIG. 5 has the advantage of not damaging the tongue or oral mucosa since both ends 4 of the archwire 3 are inserted in advance. However, since there is usually a difference in height of about 6 mm between the top of the front tooth 1f and the tube 7, when inserting both ends 4, 4 of the archwire 3, the ends 4, 4 of the archwire 3 are aligned with the solid line in FIG. In the case of a so-called anchorage bent which is bent downward as shown by the chain line in FIG. 2, as well as a straight one as shown in FIG. 2, the front tooth 1f becomes an obstacle. Therefore, as shown in Fig. 3, the archwire 3 had to be forcibly bent as shown by the chain line before insertion, and the bending of the archwire 3 could no longer be adjusted, making accurate correction impossible. .

The present invention was developed to solve the above-mentioned problems, and a wire temporary fixing portion is formed at the end of the wire insertion groove of the bracket. With this configuration, the archwire can be temporarily fixed without being deformed, and therefore, the inside of the oral cavity is not damaged when the archwire is fitted, and operability is excellent. Flexibility can also be adjusted freely.

Hereinafter, embodiments of the present invention will be described based on the drawings from FIG. 6 onwards.

Reference numeral 10 denotes a bracket body, and a wire insertion groove 6 for inserting the archwire 3 is formed on the upper surface of the bracket body 10. A locking piece 11 as a wire temporary fixing portion is fixed to one end of the wire insertion groove 6 so that it can move freely at least in the same direction as the wire insertion groove 6 when the tip end 4 of the archwire 3 is inserted. The locking piece 11 as a wire temporary fixing part can be made by welding a thin circular metal rod 11 as shown in FIG.
As shown in the figure, a rectangular thin metal rod 11 is welded, as shown in FIG. 9, an L-shaped rod 11 is fixed with a screw 12, as shown in FIG.
Protruding pieces 13a, 13a are provided at the end of the screw 11.
You can also insert the . Furthermore, as shown in FIG. 11, locking pieces 11, 11 may be rotatably attached to both ends of the upper surface of the bracket body 10 with screws 12, 12, respectively. Especially this 11th
In the case shown in the figure, when one is used as the wire temporary fixing part 11, the other is used for fixing the wire, and can also serve as a common bracket for left and right teeth.

A wire escape space 13 is formed below the wire temporary fixing part 11 so that the bracket main body 10 can be freely moved up and down when the archwire 3 is inserted. In particular, in the left and right brackets shown in Fig. 11, this wire escape space 1
3 and 13 are preferably formed at the left and right ends.

In addition, as shown in FIGS. 6 and 7, a groove 14 for fitting another archwire 3 is further formed on the side surface of the bracket body 10, and as shown in FIG. In order to fix the archwire 3, a notch 15 may be provided in the lower part of the bracket body 10 so that a ligature or a rubber ring can be caught therein, or a hook 16 may be formed as shown in FIG. can.

Bracket body 10 formed in this way
The bracket is constructed by being fixed to a tooth-fitting band 5 as shown in FIG. 6, or to a base plate 17 for adhering to the teeth 1a, as shown in FIG.

In the embodiment described above, the case where correction is performed from the tongue side has been described, but it goes without saying that it can also be used as is when correction is performed from the labial side.

Since the present invention is constructed as described above, when the archwire is inserted into the wire insertion groove of the bracket, both ends of the archwire are locked to the locking pieces serving as temporary locking parts of the bracket of the last tooth, and then The archwire fits into the wire insertion groove of the tooth bracket, so the archwire does not damage the tongue or oral mucosa, and it is easy to insert and operate.Furthermore, the archwire does not deform, and the archwire Accurate orthodontic correction is possible because adjustments can be made within the oral cavity. It is particularly effective when using an archwire with an anchorage bent to correct deep bite teeth or to increase the resistance source of the rubber force used to move the teeth.

[Brief explanation of the drawing]

Figure 1 is a plan view showing how the teeth are being corrected from the lingual side, Figure 2 is a perspective view of the archwire, and Figure 3 is a perspective view of the archwire.
The figures are a side view, Figures 4 and 5, showing the archwire being inserted using a conventional bracket.
The figures are perspective views of different examples of conventional brackets, FIG. 6 is a perspective view of the first embodiment of the bracket according to the present invention, FIG. 7 is a perspective view of the second embodiment of the present invention, and FIG. 8 is a perspective view of different examples of the conventional bracket. 7 is a sectional view, FIG. 9 is a side view of the third embodiment of the present invention, FIG. 10 is a perspective view of the fourth embodiment of the present invention, and FIG. 11 is a plan view of the fifth embodiment of the present invention. It is a diagram. 1a to 1f...Teeth, 2a to 2f...Bracket, 3...Arch wire, 4...Tip, 5...
Tooth fitting band, 6, 14... Wire insertion groove, 7...
Tube, 10... Bracket body, 11... Locking piece as a temporary fixing part, 12... Screw, 13...
Space, 15...Notch, 16...Hook, 17...
...Base board.

Claims (1)

[Claims for Utility Model Registration] (1) In order to fix the tip of the archwire, in a bracket fixed to the rear teeth, a wire insertion groove into which the archwire is inserted is formed in the bracket, and the wire insertion groove is formed in the bracket. An orthodontic device characterized in that a temporary fixing part is formed at an end of the groove to which an archwire is temporarily fixed with a degree of freedom at least in the direction of the groove. (2) The orthodontic device according to claim 1, wherein a wire escape space is formed in the wire insertion groove portion facing the temporary fixing portion. (3) The orthodontic device according to claim 1, wherein the temporary fixing portion is fixedly provided at the end of the wire insertion groove. (4) The orthodontic device according to claim 1, wherein the temporary fixing portion is provided in at least one end of the wire insertion groove so that the wire insertion groove can be opened and closed. (5) The orthodontic device according to claim 1, wherein the temporary fixing portion is removably provided at the end of the wire insertion groove.