JPH0221051Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a dental bracket for mooring an orthodontic archwire.

``Prior Art'' This type of bracket is fixed to the tooth surface in order to apply the load caused by the bending and tension of the archwire to the tooth to be corrected, and the bracket body 1 is as shown in FIG. 4A. A mooring groove 2 for mooring the archwire is formed in the center, and wing parts 3 are formed on both sides for latching the ligature that binds the wire moored in the groove 2. In actual use, as shown in FIG. It is fixed to a surface.

``Problems that the invention aims to solve'' In actual orthodontic treatment, when fixing the bracket to the tooth surface and applying the load of the archwire to the tooth to be corrected, it is important to Since the mooring position of the archwire naturally changes depending on the irregular condition of the tooth, the bracket itself must be fixed at the optimal position on the tooth surface so that the wire can be moored at a corresponding position. Otherwise, effective orthodontic treatment cannot be expected at all.

However, in the past, the bracket body 1
Since the adhesive base plate 4 itself is not equipped with any means or structure for accurately measuring the optimal fixing position, a dedicated measuring gauge shown in FIGS. 5A and 5B is generally used. There is.

The measuring gauge has a base body 5 formed into a rod shape or a four-pronged shape, and a ruler part 6 formed at each end of the base body 5 using a part of the base body 5, and a predetermined distance from the ruler part 6. It has indicator plates 7a or indicator needles 7b fixed at intervals, and the ruler part 6 is set at the reference point of the tooth, that is, the incisal edge for incisors, the cusp, or small point for canines.
In the case of molar teeth, the configuration is such that the tip of the indicator plate 7a or the indicator needle 7b can indicate the fixing position of the bracket on the T surface of each tooth by abutting on the cusp crest.

However, each of the above gauges has a ruler part 6 and an indicator plate 7.
If the spacing between the indicator needles 7a and 7b is set at different positions in advance, it is impossible to always accurately obtain the various fixing positions of the brackets with just two or four, and it is not suitable for general-purpose orthodontic treatment. I was unable to fully respond to sex.

Furthermore, the use of a measuring gauge has the problem of complicating the treatment work, since it is required to use the gauge to indicate the fixing position and at the same time to adhesively fix the bracket. For this reason, for example,
A positioning tool exclusively for brackets as shown in Japanese Patent No. 15309 has also been provided.

Although not specifically shown in the drawings, the positioning tool includes an occlusal surface portion that is applied to a reference position of the tooth, an inclined surface portion that hangs down from the occlusal surface portion at a certain angle, and a lower end of the inclined surface portion that is attached to the occlusal surface portion. and a horizontal part that is fitted into the mooring groove of the bracket.In actual use, after the horizontal part is fitted into the mooring groove of the bracket and the positioning tool is integrated with the bracket, the occlusal surface part is By bringing the bracket into contact with a reference point on the tooth, the bracket is fixed at an optimal position on the tooth surface with the distance between the occlusal surface portion and the horizontal portion.

Therefore, compared to the above-mentioned measuring gauge, this positioning tool can be expected to greatly improve the work surface because it is integrated with the bracket during use, but the single positioning tool itself is Since the distance between the occlusal surface and the horizontal portion is determined in advance, in order to respond to various treatment cases, a number of positioning tools with varying distances between the occlusal surface and the horizontal portion must be individually prepared. There are new problems in terms of manufacturing and economics that must be addressed.

"Means for Solving the Problems" The present invention was developed to effectively solve the various problems in the conventional art mentioned above.
A mooring groove for mooring the arch wire is formed in the center of the main body, and wing parts are formed on both sides for mooring the ligature wire for tying the wire moored in the groove, and an adhesive base plate is provided on the bottom surface. The bracket is adhesively fixed to the tooth surface via the base plate, and scales at predetermined intervals are provided on the surface of the side edge of the adhesive base plate located on the tooth reference point side. We adopted a configuration in which the measurement piece can be separated and extended as an integral part.

``Operation'' Therefore, in the case of the present invention, it is extremely simple to make the reference point coincide with the desired scale of the measuring piece extended on the side edge of the adhesive base plate located on the reference point side of the teeth. Moreover, since the optimal fixed position of the bracket can be obtained accurately, if the base plate is bonded to the tooth surface in this state, the bracket itself can always anchor the archwire at the optimal position.

"Embodiments" Hereinafter, the present invention will be described in detail based on each of the illustrated embodiments.The bracket according to the first embodiment also has a mooring groove 2 for mooring an archwire in the central part of the main body 1.
The main body 1 has wing parts 3 and 3 on both sides for locking the ligature that binds the wire moored in the groove 2, and has an adhesive base plate 4 integrally formed on the bottom surface of the main body 1. Alternatively, as in the conventional case, a separately molded base plate 4 is welded to the bottom surface, but the feature is as shown in FIG. A measurement piece 10 having scales 11 at predetermined intervals on its surface is detachably extended from the side edge located at the side edge.

The extended state of the measuring piece 10 with respect to the base plate 4 is such that even when the base plate 4 is adhesively fixed to the tooth surface as shown in the figure, the base plate 4 does not peel off and can be easily removed by hand or with a cutter. It extends linearly through a connecting neck 12 having an extremely small width so that it can be easily separated. It goes without saying that the intervals between the scales 11 on the surface of the measurement piece 10 can be determined as desired, but it is sufficient to provide several scales at 1 mm intervals. However, when using the scale 11 of this measurement piece 10 to obtain the optimal fixing position of the bracket, the distance from the center position of the bracket body 1 to the scale of the measurement piece 10 closest to the base plate 4 must be specified in advance. By adding the distance to the desired scale of the measuring piece 10 to this specific distance, the bracket is fixed at the optimum position on the tooth surface. The scale 11 is preferably determined in relation to a specific distance from the center position of the bracket body 1 to the scale on the measurement piece 10 closest to the base plate 4.

Therefore, when a bracket having such a configuration is to be adhesively fixed to the T-side of a tooth, as shown in FIG. , Grasp the bracket so that it is positioned at the cusp for a canine tooth, or at the top of the cusp for a small or molar tooth, and gradually move the bracket up and down while approaching the T surface of the tooth. , measurement piece 10
By matching the desired scale in the scale 11 with the reference point, the distance from the center of the bracket body 1 to the scale closest to the base plate 4 on the measurement piece 10 and the distance to the desired scale can be determined as described above. By the sum of
Since the optimal fixing position of the bracket to the tooth T-surface can be immediately obtained, if the base plate 4, which has been coated with adhesive in advance, is adhered to the tooth T-surface in that state, the bracket can always be adjusted according to the individual orthodontic treatment. It will be fixed in the optimal position.

After fixation, as shown in Figure B, by cutting the connecting neck 12 with your fingers or a cutter, and separating the measurement piece 10 from the side edge of the base plate 4, the measurement piece 10 can be attached to the tooth T surface, which is no different from the conventional method. Since a fixed state is obtained, similar orthodontic treatment can be performed by mooring an archwire (not shown) in the mooring groove 2 of the archwire.

Next, the bracket according to the second embodiment will be explained. This bracket is a modification of the first embodiment, and the difference is that, as shown in FIG. The point is that the scale 11 is formed at a predetermined interval by having each concave portion 11a and convex portion 11b defining the shape.

Therefore, when the bracket of the second embodiment is adhesively fixed to the tooth T-side, the bracket is held with the measurement piece 10 positioned on the reference point side of the tooth, and the tooth is fixed as in the first embodiment. While approaching the T side,
Move the bracket vertically to remove the recess 11.
It goes without saying that the optimum fixing position of the bracket to the tooth T surface can be immediately obtained by matching the desired scale in the scale 11 made up of the convex portion 11b with the above-mentioned reference point. As shown, the fixed position of the bracket can be obtained by simply bending the convex portion 11b that forms the desired scale inward in advance and bringing the bent convex portion 11b into contact with the reference position of the teeth when fixing the bracket. It also becomes possible. In particular, the method of bringing the bent convex portion 11b into contact with the reference location of the tooth has the advantage that a more accurate fixing position can be quickly obtained.

It goes without saying that even in the second embodiment, after the bracket is fixed, the measuring piece 10 is separated from the side edge of the adhesive base plate 4 via the connecting neck 12.

"Effects of the Invention" As described above, the present invention is characterized in that a measuring piece having scales at predetermined intervals on its surface is removably extended to the side edge of the adhesive base plate on the bottom of the bracket body. Therefore, it is possible to perform individual orthodontic treatment by simply matching the desired scale on the measuring piece with the reference point on the tooth, without using any conventional measuring gauge. Therefore, the optimal fixing position of the bracket is always obtained.

Moreover, in order to obtain a different fixed position each time depending on the type and size of the tooth, the irregularity of the tooth, etc.
It goes without saying that ideal orthodontic treatment can be expected since more accurate measurements can be made by making full use of the scale on the measuring piece than by using a gauge.

Further, after the bracket is fixed at an optimal position via the measuring piece, the measuring piece can be easily separated from the base plate, so there is no fear of interfering with orthodontic treatment.

Furthermore, eliminating the need for conventional gauges
This also provides the advantage that the work of gluing and fixing the bracket can be done very easily. Moreover, in the present invention, since the measuring piece is integrally extended to the side edge of the base plate, there is no need for independent manufacturing and processing of the measuring piece as with conventional positioning tools. Not only can we expect great improvements in terms of manufacturing, but since the measuring piece has scales at predetermined intervals on its surface, even if the fixed position of the bracket varies depending on the patient, it will be easier to use.
Simply select the scale of the measuring piece as appropriate.
It becomes possible to sufficiently deal with various cases, and from this point of view as well, it is possible to provide an extremely efficient and economical orthodontic bracket.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the orthodontic bracket according to the first embodiment of the present invention, Fig. 2A is a front view of the main part showing the state in which the bracket is fixed to the tooth surface using a measuring piece, and Fig. 2B is 3A is a front view of the main part showing a state in which the measurement piece is separated from the base plate, FIG. 3A is a perspective view showing the orthodontic bracket according to the second embodiment, and FIG. FIG. 4A is a perspective view showing only the conventional bracket main body, and FIG. 4B is a main part showing a state in which the bracket is fixed to the tooth surface via the base plate. 5A and 5B are perspective views showing a conventionally used measuring gauge. 1... Main body, 2... Mooring groove, 3... Wing part, 4...
...Base plate for adhesion, 10...Measurement piece, 11...Scale, 12...Connection neck, T...Tooth.

Claims (1)

[Scope of utility model registration request] A mooring groove for mooring the arch wire is formed in the center of the main body, and wing parts are formed on both sides for mooring the ligature wire for tying the wire moored in the groove, and an adhesive base plate is provided on the bottom surface. and a measuring piece having scales at predetermined intervals on the surface thereof, on the side edge of the adhesive base plate located on the reference point side of the tooth. An orthodontic bracket characterized in that the orthodontic brackets are integrally extended in a separable manner.