JPH0499569A - Simultaneous measuring body for contact body shape and contact state - Google Patents

Abstract

PURPOSE:To simultaneously measure an occlusion shape of the whole occlusion surface, pressure of the whole occlusion part, and a contact state of the whole occlusion surface by covering a sheet to which each capsule of a color coupler and a developer is applied, with a transparent resin having room temperature hardenability. CONSTITUTION:In the dentistry, when a transparent resin having room temperature hardenability is heated to a temperature at which plastic deformation can be executed by a patient's occlusion, for instance, about 70 deg.C and offered to the patient's occlusion, in the transparent resin concerned 1 pressurized by the patient's occlusion, the whole jaw tooth train shape and each occlusion shape of all teeth are marked solidly, and simultaneously, as for a colored and developed sheet covered with the heated transparent resin 1, each capsule of a color coupler and a developer of the pressurized part is broken down and colored and developed, and an occlusion contact detecting sheet transmits a contact time and a contact pressure signal to a system unit. A measuring body A after the patient's occlusion shows simultaneously, by coloring the whole jaw tooth train shape, an occlusion state of all teeth, and occlusion pressure of the contact face of all teeth at the time of the whole teeth occlusion of the patient, and the contact time and the contact pressure of all teeth are shown simultaneously as a digital signal and a three-dimensional visual signal.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a measurement object whose contact surface is composed of various irregularities and which can simultaneously display the shape and contact state of the contact object that is in contact under pressure. It is something.

<Prior art> For example, as a measurement object whose contact surface is in a pressurized state,
There is a pressure measurement sheet proposed by Japanese Patent No. 41177.

This includes microcapsules containing an aromatic carboxylic acid and an electron-donating organic coloring agent and a metal salt and/or inorganic metal salt of the carboxylic acid on the same support, e.g.
It is applied to a plastic film, metal foil, paper, resin-coated paper, synthetic paper, etc. with a thickness of about the same size as rattan, and is colored by applying pressure to the opposite side of the coating, and the pressure is read from the optical density change of the colored image. be.

How to use this pressure sheet is described in Japanese Patent Application Laid-Open No. 50114.
Publication No. 274 states that in a molding process that uses solid powders or fluids such as synthetic resins, powder metallurgy, confectionery materials, etc., the coated surfaces of a sheet coated with a color former and a sheet coated with a color developer are placed opposite each other in a mold. 499 describes a method in which the color is developed by applying pressure to the surface opposite to the coating surface, and the pressure is measured based on the density. There is a proposal for a method to measure the pressure between.

Furthermore, JP-A No. 57-64157 discloses an example of using a sheet to measure the inter-electrode pressure of an electrical resistance dielectric moisture meter, and JP-A No. 59-192933 discloses an example of using a sheet to measure the pressure between the electrodes of an electric resistance dielectric moisture meter. An example is disclosed in which it is used to measure pressure and its distribution.

The above is an example in which the pressure was mainly used to measure pressure during flat contact. However, as an example in which the contact surface is used for measurement in a convex-convex occlusal state where the contact surface is complex, for example, as an example of use in dentistry, The disclosure is in ``Dental Perspectives Vol. 59, No. 2, pp. 311-320,'' published on 2016.

This involves first placing a pressure-sensitive paper (pressure measurement sheet or pressure measurement film) with a thickness of 95 μm to 200 μm on the patient;
A colored sample is created based on the patient's occlusal condition, irradiated with light, and the reflected light is sent through a filter to a microscope.
The image magnified by the microscope is converted into an analog signal, and this signal is processed by a microcomputer to simultaneously display the occlusal contact area and occlusal force on the screen, and is recorded by a printer, and based on this record. This is a method of calculating occlusal contact area and occlusal force.

Furthermore, US Pat. No. 4,734,034 discloses that ■ knee-shaped row electrodes, ■ knee-shaped column electrodes, sandwiching ■ two resistance layers, and ■
Using a sheet that is positioned so that the and ■ form a perpendicular intersection, has an integral structure, and is configured to be inserted into the patient's oral cavity.
In dentistry, there has been a proposal for an occlusal contact point detection sheet that measures the occlusal time and occlusal pressure of the entire dentition.

This sheet is inserted through a handle configured to hold the sheet and to be electrically connected to the electric circuit of the sheet.
It is electrically connected to a system unit that processes electrical signals from the sheet and displays the contact time and contact pressure for each tooth in the entire jaw, and is provided for dental diagnosis and treatment.

However, it is impossible to grasp the occlusal shape and occlusal contact state of the entire dentition at the same time, and it is difficult to understand how much occlusal pressure and how much occlusal pressure is exerted when performing jaw movements under any dentition shape. It is unknown whether or not the process will change, but due to the characteristics of the tooth row shape and jaw movement that exist in each individual, efficient mastication that is not harmful to the temporomandibular joints and periodontal tissues is possible. It is not possible to quickly and accurately grasp the occlusal pressure distribution.

<The fJ that the invention attempts to solve! Title> Each of the above proposals can measure the contact situation of a contacting body, but cannot measure the three-dimensional contact shape of the contacting body. Particularly in dentistry, in order to provide prompt and accurate treatment, two
~ It is necessary to understand the shape of the tooth row, tooth occlusion shape, and occlusal contact state when all teeth are in occlusion, rather than grasping in units of three teeth.

This is not limited to dentistry, but is also used in fields where contact objects are joined with some unevenness, and can detect the joint shape and state more accurately and quickly without being affected by individual differences or requiring special skill. , is a common need when taking appropriate measures.

In response to the above-mentioned needs, the present invention aims to provide a measuring body that can simultaneously measure the contact shape and contact state of the entire contact body, and is particularly useful in the field of dentistry. It is an object of the present invention to provide a measurement object that can simultaneously measure the occlusal shape of all teeth and the occlusal contact state of all teeth.

<Means for Solving the Problems> In order to achieve the above problems, the present invention is characterized in that (1) a sheet coated with capsules of a color former and a color developer is coated with a transparent resin that hardens at room temperature; (2) A sheet coated with capsules of a color forming agent and a color developing agent, and a sheet coated with capsules of a color forming agent and a color developing agent, and U.S. Pat.
The second means is a contact body shape and contact state simultaneous measurement body characterized by laminating sheets for detecting occlusal contact points described in Japanese Patent Publication No. 2655 and covered with a transparent resin that hardens at room temperature.

<Operation> Since the present invention uses the above-mentioned means, in dentistry,
When a room-temperature hardening transparent resin shown as 1 in Fig. 1 and Fig. 2 is heated to a temperature at which it can be plastically deformed by the patient's occlusion, for example, about 70°C, and subjected to the patient's occlusion, the resin will be heated by the patient's occlusion. The pressed transparent resin 1 is engraved three-dimensionally with the shape of the entire dentition and the occlusal shapes of all the teeth, and at the same time, it is shown in FIGS. The color-developing sheet shown here develops color by destroying the color-forming agent and each capsule of the color-developing agent in the pressurizing part, and the occlusal contact detection sheet shown at 3 in Fig. 2 uses the contact time and contact pressure signals as a system.・Send to the unit.

As a result, in the first method, the measurement object A after the patient's occlusion measures the shape of the dentition of the patient's entire jaw, the occlusal state of all the teeth, and the occlusal pressure of the contact surfaces of all the teeth when the patient's teeth are in occlusion. At the same time, in the second means, in addition to the information obtained in the first means, the contact time and contact pressure of all teeth are simultaneously shown to the system unit as a digital signal and a three-dimensional visual signal.

This makes it extremely easy to determine an appropriate treatment method and accurately confirm the treatment results, thereby achieving the object of the present invention.

In addition, the transparent resin 1 that hardens at room temperature needs to have a thickness that allows the shape of the tooth row and occlusion to be grasped three-dimensionally.
The thickness of the coloring sheet 2 and the occlusal contact detection sheet 3 is preferably thin as long as there is no problem.

<Example> (1) The first means of the dental measuring body (each seat embedded mold) is shown in FIG. 1, the second means is shown in FIG. 2, (2) the first measuring body for inside the mold. The means for the means is shown in FIG. 3, and (3) the first means of the measuring body for coupling is shown in FIG. 4. (2) The second means can be used by doing the same as in FIG. 2 for (3).

<Effects of the Invention> The present invention uses a coloring sheet coated with a transparent resin that hardens at room temperature to form a measurement object, so that the occlusal shape of the entire occlusal surface, the pressure of all calibrated areas, and the contact state of all calibrated surfaces can be measured simultaneously. So,
The present invention has great effects in this field, such as being able to quickly determine appropriate measures, accurately and quickly ascertain whether the measures are appropriate, and easily ensuring good occlusal conditions.

[Brief explanation of the drawing]

Figures 1 and 2 show the dental measuring body A, respectively (+1 is a plan view, (2) is a cross-sectional view, and Figure 2 is JP-A-50-1142).
FIG. 3 shows a plan view of a measuring body A for coupling in the proposed field of Japanese Patent Application Laid-Open No. 192933/1980.

Claims (2)

[Claims] (1) An object for simultaneous measurement of contact shape and contact state, characterized in that a sheet coated with capsules of a color former and a color developer is coated with a transparent resin that hardens at room temperature. (2) Simultaneous measurement of contact shape and contact state, characterized by laminating a sheet coated with capsules of a coloring agent and a color developer and a sheet for detecting occlusal contact points and covering the same with a transparent resin that hardens at room temperature. .