JPH11206785A - Bracket for orthodontia and displacement amount display member for orthodontia - Google Patents

Abstract

PROBLEM TO BE SOLVED: To objectively recognize what degree of force is applied to teeth in which direction. SOLUTION: A bracket 1 to be fixed to the surface of the tooth 2 so as to perform a treatment for correcting a dentition in an incorrect occlusion state to a normal dentition and a displacement amount display member 5 positioned between the bracket 1 and the tooth 2 capable of measuring a deformation degree from the outside are provided. Thus, an optical measurement device hardly adversely affecting a human body is utilized, it becomes convenient for measurement and the treatment with less stress both in a treating person and a patient is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a bracket used in orthodontic treatment and a displacement indicating member added thereto.

[0002]

2. Description of the Related Art In orthodontic treatment, as shown in FIG. 4, a small instrument made of stainless steel, plastic, or the like is used to perform a procedure for correcting a maloccluded dentition to a normal dentition. A certain bracket 1 is fixed to a tooth 2, an arch wire 3 made of stainless steel, nickel titanium, or the like is passed through a hole 1 a of each bracket 1, and the arch wire 3 is attached to the bracket 1 so that the arch wire 3 does not come off from the bracket 1. The position of the arch wire 3 is fixed by winding or by winding another wire 4 around the bracket 1.

[0003] The teeth move to a desired position by compressing the teeth to correct orthodontic positions by bending or twisting applied to the arch wire 3 (for example, see Japanese Patent Application Laid-Open No. 7-1995). 313528 gazette).

[0004]

By the way, even if the teeth are pressed, it is not known in what direction and how much force is applied. Until now, it is necessary to rely solely on the experience and intuition of the person performing the treatment. I had no choice.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a bracket fixed to the surface of a tooth for performing a procedure for correcting a maloccluded dentition to a normal dentition. A displacement amount display member that is located between the bracket and the teeth and that can measure the degree of deformation from the outside.

In particular, the displacement amount display member is made of an elastic material and has a plurality of striped patterns on the surface of which the degree of external deformation can be measured.

[0007] Further, it is disposed between the bracket fixed to the surface of the tooth and the tooth to perform a procedure for correcting the dentition in a malocclusion state to a normal dentition, and the degree of deformation can be measured from the outside. Orthodontic displacement amount display member.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The bracket 1 is provided with a displacement amount display member 5 located between the bracket 1 and the teeth 2 so that the degree of deformation can be measured from the outside.

[0009] The person who performs the treatment measures the state of the pattern 5a of the displacement amount display member 5 in each bracket 1 as an initial value when the bracket 1 is set on the tooth 2 using the arch wire 3. Then, during the treatment, the measured value is measured again to obtain a measured value, whereby the amount of change of the measured value with respect to the initial value according to the moving amount of the tooth 2 is measured as a numerical value, thereby objectively knowing the moving amount of the tooth 2. Therefore, appropriate treatment can be selected thereafter.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the embodiments shown in FIGS. 1 to 3. The same or corresponding parts as those in the prior art shown in FIG. Omit description.

FIG. 1 shows an initial state of mounting, in which a displacement amount display member 5 for enabling the degree of deformation to be optically measurable from the outside, for example, is adhesively fixed to a surface of the bracket 1 in contact with the teeth 2. The displacement amount display member 5 is made of an elastic material such as rubber or resin, and has a plurality of stripes 5a on its surface as a pattern from which the degree of deformation can be measured from the outside.

At the time when the bracket 1 is set on the teeth 2 by using the arch wire 3, the person performing the treatment irradiates and reflects the stripe pattern 5 a of the displacement amount display member 5 attached to each bracket 1 with the laser beam L. The position data is measured by using an optical measuring device 6 (for example, “LZ-155” manufactured by Keyence), and recorded as an initial value. Reference numeral 7 denotes an amplifying unit for amplifying the signal from the measuring device 6, 8 denotes an arithmetic unit for calculating the position data from the output of the amplifying unit 7, and 9 denotes a display for displaying the position data based on the result from the arithmetic unit 8 Department.

During the treatment, the displacement amount display member 5 is deformed by the movement of the teeth 2 as shown in FIG. 2, and the stripe pattern 5a of the displacement amount display member 5 also changes. The position data thus obtained is measured again as described above and obtained as a measured value, so that the tooth 2
The amount of change in the measured value with respect to the initial value according to the amount of movement of the tooth 2 can be measured as a numerical value, whereby the amount of movement of the tooth 2 can be objectively known, so that an appropriate treatment can be selected thereafter. Is what you do.

The pattern of the displacement amount display member 5 is not limited to the striped pattern 5a of the above embodiment, but any pattern that can be easily measured from the outside is sufficient.

As described above, the conventional bracket 1 is provided with the displacement amount display member 5 whose outer shape changes in accordance with the movement of the teeth 2, so that the teeth when pressing the teeth 2 to the orthodonically correct position can be obtained. Since the moving state of No. 2 can be grasped as an objective numerical value instead of the experience and intuition of the person who performs the treatment, an appropriate treatment can be performed.

The displacement amount display member 5 is mounted on the bracket 1 in advance, and is applied to a patient by a dentist or other treating person, or the bracket 1 and the displacement amount display member 5 are connected to each other. Each of them can be obtained independently and applied to the patient by attaching it to the bracket 1 immediately before use. That is, the present invention can be easily implemented only by adding the displacement amount display member 5 without making a significant change to the conventional bracket 1.

[0017]

According to the present invention, by providing the bracket with the displacement amount display member whose outer shape changes in accordance with the movement of the teeth, it is possible to objectively determine in what direction and how much force is applied to the teeth. It is possible to provide a bracket for correction that can be known, and in particular, by forming a displacement amount display member from an elastic material and forming a plurality of striped patterns on its surface capable of measuring the degree of external deformation, a human body can be provided. An optical measuring device that does not adversely affect the measurement can be used, which is convenient for the measurement, and enables a treatment with less stress for both the practitioner and the patient.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an initial mounting state of an embodiment of the present invention.

FIG. 2 is an explanatory view showing a state during treatment according to the embodiment.

FIG. 3 is an explanatory diagram showing a measurement state of the embodiment.

FIG. 4 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 Reference Signs List 1 bracket 2 tooth 3 arch wire 5 displacement amount display member 5a striped pattern (pattern) 6 measuring instrument

Claims (3)

[Claims] 1. A bracket fixed to the surface of a tooth for performing a procedure for correcting a malocclusion in a normal dentition, and a bracket positioned between the bracket and the tooth to allow external deformation. A bracket for orthodontics, comprising: a displacement amount display member capable of measuring the angle. 2. The orthodontic bracket according to claim 1, wherein the displacement amount indicating member is made of an elastic material and has a plurality of striped patterns on a surface thereof so that the degree of external deformation can be measured. 3. A tooth is placed between a bracket fixed to the surface of a tooth and the tooth to perform a procedure for correcting a maloccluded tooth to a normal tooth, and the degree of deformation can be measured from the outside. A displacement amount indicating member for orthodontics.