JP2016157004A - Dental device, dental system, and dental model - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dental device for displaying pressure applied to a dental model with an inexpensive and simple configuration, a dental system, and a dental model used for the dental device and the dental system.SOLUTION: A dental device (tooth model) 100 used for the training such as the dental treatment having a dental model column and a dental model stem, and the nursing care includes: a force detection part for detecting an external force applied to one or each of a plurality of tooth models; and a PC 200 for displaying a sheer force (translation force) and/or a moment measured by the force detection part. A force applied by the treatment simulation action performed for the dental device (tooth model) 100 by a teaching person is displayed in the PC 200, and a difference (magnitude of the force and the direction) between the treatment simulation action performed to the dental device by the teaching person and the similar treatment simulation action performed by a trainee is allowed to be compared with each other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a dental apparatus, a dental system, and a tooth model, and in particular, dental treatment such as removal of tartar, plaque, filling (inlay), cement, adhesive, etc. with dental instruments such as scalers and picks, The present invention relates to a dental apparatus, a dental system, and a tooth model that can be used for dental practice (practice, training, education, training, training, etc.) in the fields of dentistry, dental treatment, dental nursing, dental hygiene, oral care, and the like.

  As a conventional example, for example, Patent Literature 1 describes “a training apparatus and method based on virtual reality for learning a treatment operation in dentistry”. Patent Document 2 describes “dental treatment practice method and apparatus”.

Special table 2003-532144 gazette Special table 2011-527462 gazette

  However, in the past, since dental practice was performed with a dental model (tooth model) without a force detection function, instructors (professors, educators, teachers, instructors, trainers, etc.) It was assumed that it would not always be easy to convey appropriate strength to students, students, trainees, trainees, etc.).

  In view of the above, the present invention provides a dental device, a dental system, a dental device, and a tooth model used for a dental system for displaying the force applied to the tooth model with an inexpensive and simple configuration. With the goal.

According to the first solution of the present invention,
A dental device,
A tooth model for force measurement;
A pressure-sensitive portion joined and fixed to the tooth model in a plane perpendicular to the longitudinal direction of the tooth model, and a biaxial moment around the axis perpendicular to the longitudinal direction by a force applied to the tooth model; A sensor unit for outputting a shear force in two axial directions;
Provided is a dental apparatus that includes the alveolar bone model having a hole or a recess in which the pressure-sensitive part of the sensor part is fixed and the tooth model is inserted with a gap in the crown-side part of the pressure-sensitive part. Is done.

According to the second solution of the present invention,
A dental system,
The dental device as described above;
A processing unit;
A display unit;
With
Based on the output from the sensor unit, the processing unit obtains a direction and strength in the vertical surface for the force applied to the tooth model on the vertical surface, and provides a dental system for displaying on the display unit Is done.

According to the third solution of the present invention,
A tooth model,
The crown side part,
A root side portion having an attachment portion to be attached and fixed to the recess of the alveolar bone model;
It is inserted between the crown side portion and the root side portion, and is joined and fixed to the crown side portion and the root side portion in a plane perpendicular to the longitudinal direction of the tooth model to form an integral structure. The pressure-sensitive part,
With
Based on the output of the pressure sensing unit by the signal processing unit, the moment about two axes on the vertical plane with respect to the longitudinal direction, or the axial force in the longitudinal direction and the longitudinal direction due to the force applied to the tooth model Find and output the biaxial moment around the axis perpendicular to the direction,
At least the crown side portion is inserted with a gap from the tooth model so that the force applied to the tooth model can be detected, and the root side portion is placed on the bottom surface of the concave portion of the alveolar portion model by the mounting portion. A tooth model is provided for allowing attachment.

  According to the present invention, it is possible to provide a dental device, a dental system, a dental device, and a tooth model used for a dental system for displaying force applied to the tooth model with an inexpensive and simple configuration.

The block diagram of a dental system. Explanatory drawing of an example of a training method. 1 is a configuration diagram of a dental apparatus according to Embodiment 1. FIG. The block diagram of the dental apparatus of Embodiment 2. FIG. Explanatory drawing of the measuring method by the dental apparatus of Embodiment 2. FIG. The block diagram of the dental apparatus of Embodiment 3, the block diagram of a sensor part. The block diagram of the modification of the dental apparatus of Embodiment 3. FIG. The block diagram of the other modification of the dental apparatus of Embodiment 3. FIG. The block diagram of a tooth model with a sensor. Supplementary explanatory drawing about the measuring method of a dental apparatus. Explanatory drawing of the example of a screen display.

A. Overview

In the present embodiment, for example, in a dental apparatus (dental model) used for practice such as dentistry and nursing having a tooth model row and a tooth model stem, an external force applied to one or a plurality of tooth models is detected. There is provided a dental apparatus provided with a force detection unit for displaying and a display unit / device for displaying a shearing force (translational force) and / or moment measured thereby.
Further, in the present embodiment, for example, the force applied by the treatment simulation act performed by the instructor on the dental device (tooth model) is displayed on the display unit / device, and the same treatment simulation act performed by the practitioner. Be able to compare differences (magnitude, direction of force).

B. Dental system

In FIG. 1, the block diagram of a dental system is shown.
The dental system 10 includes, for example, a dental device (tooth model) 100, a head-shaped mannequin 101, and a personal computer (PC) 200. The dental apparatus 100 includes a dentition model including a plurality of tooth models, a gum model, a jawbone model having an alveolar bone model into which the tooth model is inserted, and the like. The PC 200 includes, for example, a processing unit (CPU 201), an interface (I / F) unit 202 for connecting to the dental apparatus 100, a storage unit 203, a display unit 204, and an input unit 205. Note that the display unit 204 can use an appropriate display such as a liquid crystal or a wearable device, and the display unit 204 and the input unit 205 may have a single configuration such as a touch panel. In addition, data is transmitted and received between the dental apparatus 100 and the I / F unit 202 by wired communication or wireless communication. When wireless communication is employed, a wireless communication interface may be provided on the dental apparatus 100 side, and the I / F 202 may be used as a wireless communication interface. Instead of the PC 200, a PLC (programmable controller) or an external dedicated display device may be used.

  The dental apparatus 100 includes a force detection unit (sensor unit) that detects an external force applied to one or a plurality of tooth models. This sensor unit can detect, for example, proportionally or analogly the force and / or moment applied to the tooth model, the movement caused by the force, and the like. As the sensor unit, for example, a strain gauge or load cell for measuring a solid and its strain, a conductive rubber / pressure-sensitive rubber whose electrical conductivity is changed by force, a tactile film whose capacitance is changed by strain due to force, etc. The device can be used. The type of tooth (incisor, canine, premolar, molar, etc.) to be used as a force measurement tooth model can be selected as appropriate, and one or more or all of them can be selected as a force measurement tooth model. The other can be a normal tooth model without a force measurement function. The force (for example, translational force (shearing force) and / or moment) measured by the dental device 100 and converted into an electrical signal is input to the PC 200 or a dedicated display device having a function of displaying the signal, and the signal Are processed and displayed on the display unit 204 or a dedicated display device.

  Further, as shown in the figure, as an example, when the dental apparatus 100 according to the present embodiment is attached to the head-shaped mannequin 101, practical training closer to the actual state of the treatment simulation act such as dental treatment / dental treatment can be performed.

FIG. 2 shows an explanatory diagram of an example of the training method.
In this figure, the explanatory view about an example of the practice of oral care to which this embodiment is applied is shown. For example, a teacher or a practitioner applies necessary / sufficient force to the tooth model with an instrument to remove tartar, plaque, and the like attached to the tooth model.

C. Dental equipment

Hereinafter, as an example, the applied force is the z-axis in the longitudinal direction of the tooth model, the x-axis is the direction along the gum model (dental model) (gum model direction, dentition direction), the longitudinal direction of the tooth model, and the gums A direction perpendicular to the model direction (dentition direction) will be described as the y-axis. Further, the moment around the z-axis in the longitudinal direction is M _z , the moment around the x-axis is M _x and the moment around the y-axis is M _y with respect to the x-axis and y-axis on the plane perpendicular to the longitudinal direction (z-axis). Will be described. collectively moments M _x and M _y around the x-axis and y-axis, may be referred to as axis moment of two axes on the plane perpendicular to the longitudinal direction. Note that the coordinate axis can be set as appropriate.

FIG. 3 shows a configuration diagram of the dental apparatus according to the first embodiment.
3A shows an explanatory view showing a partial cross section of the dental apparatus 100-1 as viewed from the front, and FIG. 3B shows an XX ′ cross section of FIG. The dental apparatus 100-1 includes a force measurement tooth model 1 (hereinafter sometimes simply referred to as “tooth model 1”), a tooth model 2, an alveolar bone model 3, a gum model 4, a tooth model mounting portion 5, a force. The transmission member 6, the sensor part 7-1, and the sensor attachment part 8-1 are provided.

The alveolar bone model 3 (partial display) is made of, for example, a hard resin. The alveolar bone model 3 is provided in the jaw bone model, and the alveolar bone model 3 and the jaw bone model may be configured separately or may be integrated. In general, the jawbone model corresponds to the maxilla (part of the skull) and the mandible, and the alveolar bone model 3 can correspond to the alveolar portion of them, in which case the jawbone model and the alveolar bone model 3 Of these, the portion corresponding to the upper jaw and the portion corresponding to the lower jaw can be integrally formed as a bone model.
The gum model 4 (partial display) is formed of a flexible resin, for example. The gum model 4 (partial display) can be omitted.
The tooth model 2 has an attachment portion such as a female screw formed at a root portion (tooth root portion), and is attached through a through hole of the alveolar bone model 3 by a tooth model attachment portion 5 such as a male screw.
For example, a 6-component force, a 3-component force, or a 2-component force load cell can be used as the sensor unit 7-1. The sensor unit 7-1 is attached to a surface perpendicular to the longitudinal direction of the tooth model 1 or a substantially perpendicular (substantially perpendicular) surface (the same applies to the following embodiments).
In the alveolar bone model 3, the sensor unit 7-1 is fixed, and the tooth model 1 is inserted into the formed hole portion with a gap between the sensor unit 7-1 and the crown side portion.

If a 2-component load cell or the like is used as the sensor unit 7-1, the forces (addition forces) (shear forces) F _x and F _y applied to the teeth in the x and y directions due to the force applied to the tooth model 1 are obtained. It can be measured directly.
With the 3 component force load cell as a sensor unit 7-1, additional force in the x-direction and y-direction and z-direction by the force exerted on the tooth model 1 (shearing _force) F _x, F y, and _{F z,} directly It can be measured.
Further, if a 6-component load cell or the like is used as the sensor unit 7-1, additional forces (shearing forces) F _x , F _y , F _{z in the} x direction, the y direction, and the z direction due to the force applied to the tooth model 1. and the x-axis moment _{M x} and y-axis moment _{M y} and z-axis moment _{M z,} can be measured directly.

In FIG. 4, the block diagram of the dental apparatus of Embodiment 2 is shown.
FIG. 4A is an explanatory diagram showing a partial cross section of the dental apparatus 100-2 as viewed from the front, and FIG. 4B is an explanatory diagram related to the sensor unit.
In Embodiment 2, the sensor unit 7-2 includes a pressure-sensitive unit 7-21 and a signal processing unit 7-22. For example, four pressure sensors that detect only the axial force can be used as the pressure sensing unit 7-21, and the output of the pressure sensing unit 7-21 is given to the signal processing unit 7-22. Further, the sensor mounting portion 8-2 functions as a force receiving member for the force applied to the tooth model 1. The pressure-sensitive part 7-21 of the sensor part 7-2 is attached to a surface perpendicular to the longitudinal direction of the tooth model 1 or a substantially perpendicular surface. The alveolar bone model 3 fixes the pressure-sensitive part 7-21 of the sensor part 7-2, and the tooth model 1 is a part on the crown side of the pressure-sensitive part 7-21 of the sensor part 7-2 in the formed hole part. Is inserted with a gap. Other configurations are the same as those in the first embodiment. In this example, the pressure-sensitive part 7-21 of the sensor part 7-2 is configured using four pressure-sensitive sensors. However, the present invention is not limited to this, and an appropriate number of sensors can be used.

FIG. 5 is an explanatory diagram of a measurement method using the dental apparatus according to the second embodiment.
If the force measured by the pressure sensors 7-2a to 7-1d is <a> to <d>, the compression is +, and the tension is-, the moment and force are as follows by the signal processing unit 7-22. It can be calculated by
x-axis moment M _x = <b> + <c> − (<a> + <d>)
y-axis moment M _y = <d> + <c> − (<a> + <b>)
z-axis direction axial force F _z = <a> + <b> + <c> + <d>

If such a sensor unit 7-2 is used, an additional force (z-axis axial force) F _z in the z direction and an x-axis moment M _x and a y-axis moment M due to the force applied to the tooth model 1 are used. _y can be measured.

FIG. 6A shows a configuration diagram of the dental apparatus according to Embodiment 3, and FIG. 6B shows a configuration diagram of the sensor unit.
In the third embodiment, as the pressure sensitive unit 7-31 of the sensor unit 7-3, for example, a capacitive pressure sensitive sensor, a capacitive thin touch film sensor, and a pressure sensitive sensor having a plurality of pressure sensitive rubbers. Etc. are used. The pressure-sensitive part 7-31 of the sensor part 7-3 is fixed to the sensor attachment part 8-3 and the force transmission member 6 by adhesion / bonding or the like.

For example, as shown in FIG. 6B, the sensor unit 7-3 includes a pressure sensing unit 7-31, a signal processing unit 7-32 for processing the output of the pressure sensing unit 7-31, a cord, and a terminal unit. With. In this example, the sensor unit 7-3 is connected to the I / F 202 of the PC 200 by a terminal unit as shown in FIG. 1, but may be directly connected without the terminal unit. The pressure-sensitive part 7-31 of the sensor part 7-3 is attached to a surface perpendicular to or substantially perpendicular to the longitudinal direction of the tooth model 1. The signal processing unit 7-32 of the sensor unit 7-3 is based on the output of the pressure sensing unit 7-31, and an additional force (z-axis axial force) F _z in the z direction due to the force applied to the teeth, and x seeking axis moment _{M x} and y-axis moment _{M y,} and outputs. The shape of the pressure-sensitive portion 7-31 can be an appropriate shape such as a round shape, a quadrangular shape, or a cross-sectional shape of a tooth model, and the size can be smaller or larger than the cross-section of the tooth model 1. Moreover, you may make it equivalent. In the alveolar bone model 3, the pressure sensitive part 7-31 of the sensor part 7-3 is fixed, and the tooth model 1 is inserted into the formed hole from the pressure sensitive part 7-31 of the sensor part 7-3. It is inserted with a gap in the side part. Other configurations are the same as those in the first or second embodiment.
By using such a sensor unit 7-3, an additional force (z-axis axial force) F _z in the z direction and an x-axis moment M _x and a y-axis moment M due to the force applied to the tooth model 1. _y can be measured.

In FIG. 7, the block diagram of the modification of the dental apparatus of Embodiment 3 is shown.
FIG. 7A shows an example in which the sensor mounting method is changed (Modification 1). In this example, the pressure-sensitive portion 7-31 of the sensor 7-3 is bonded and bonded to the root-side bottom portion of the force transmission member 6, and the pressure-sensitive portion 7-31 of the sensor 7-3 is attached to the alveolar bone model 3. It is fixed to the formed recess by adhesion, bonding or the like.

FIG. 7B shows an example in which the tooth model is integrated with the sensor mounting member (Modification 2). In this example, the force transmission member 6 is omitted, and the force measuring tooth model 1 formed to have a length including the root portion is used. Then, the pressure-sensitive portion 7-31 of the sensor 7-3 is fixed to the root-side bottom portion of the force measuring tooth model 1 by adhesion / bonding, and the pressure-sensitive portion 7-31 of the sensor 7-3 is further inserted into the alveolar bone. It is fixed to the concave portion formed in the model 3 by adhesion, bonding or the like.
7A and 7B, the alveolar bone model 3 fixes the pressure-sensitive portion 7-31 of the sensor unit 7-3, and the tooth model 1 has teeth from the sensor unit 7-3 in the formed recess. It is inserted with a gap in the crown side part. Further, the pressure-sensitive part 7-31 of the sensor part 7-3 is attached to a surface perpendicular to or substantially perpendicular to the longitudinal direction of the tooth model 1.

In FIG. 8, the block diagram of the other modification of the dental apparatus of Embodiment 3 is shown. FIG. 9 shows a configuration diagram of the sensor-equipped tooth model.
FIG. 8A shows an example in which the pressure-sensitive portion 7-31 of the sensor portion 7-3 is attached not directly to the alveolar bone model but to the root side portion of the tooth model 1 as a sensor base (Modification 3). . In this example, as shown in FIG. 9, the sensor-equipped force measurement tooth model 1 ′ includes a crown-side portion 1 a and a root-side portion 1 b, and a slit is formed between the crown-side portion 1 a and the pressure-sensitive portion of the sensor unit 7-3. The part 7-31 is inserted and fixed (adhered / joined). The sensor pedestal corresponds to the tooth root side portion 1b as a result of becoming the tooth root portion. The root side portion 1b is formed with an attachment portion such as a female screw, and is attached through a through hole of the alveolar bone model 3 by a tooth model attachment portion 5 such as a male screw.

  In FIG. 8B, the force measuring tooth model 1 'is the same as that in FIG. 8A, but the depth of the hole for fixing the root portion side portion 1b is different (Modification 4). In addition, the position of the slit for the pressure-sensitive part 7-31 of the sensor part 7-3 may be a position corresponding to the crown of the tooth model 1 ′ or a position corresponding to the tooth root, and may be the boundary or the vicinity of the boundary. Well, it can be determined as appropriate. Moreover, the position of the pressure-sensitive part 7-31 of the sensor part 7-3 can be an appropriate position such as the position of the front surface or the back surface of the gum model 4 or the vicinity thereof. There may be an interval between the root side portion 1b and the alveolar bone model 3.

8 (A) and 8 (B), the alveolar bone model 3 fixes the sensor unit 7-3, and the tooth model 1 has teeth in the formed recess from the pressure-sensitive unit 7-31 of the sensor unit 7-3. It is inserted with a gap in the crown side part. The pressure-sensitive part 7-31 of the sensor part 7-3 is attached to a surface perpendicular to or substantially perpendicular to the longitudinal direction of the tooth model 1.

D. Measurement

FIG. 10 shows a supplementary explanatory diagram regarding the measuring method of the dental apparatus.
The following supplements the measurement method.

If the sensor unit 7-1 such as the two-component force load cell is used as in the first embodiment, the force applied to the teeth in the x direction and the y direction by the forces f _{1 to} f ₄ applied to the tooth model 1 ( additive force) (shear _force) F x, the _{F y,} is directly measured.
If the sensor unit 7-1 such as a three-component force load cell is used as in the first embodiment, additional forces (shears) in the x direction, the y direction, and the z direction due to the forces f _{1 to} f ₄ applied to the tooth model 1 are used. Force) _Fx , _Fy , _Fz can be measured directly.
If the sensor unit 7-1 such as a six component load cell is used as in the first embodiment of FIG. 3, the forces f _{1 to} f ₄ applied to the tooth model 1 cause the x direction, y direction, and z direction. The additional force (shear force) F _x , F _y , F _x , the x-axis moment M _{x, the} y-axis moment M _y, and the z-axis moment M _z can be directly measured.

If the sensor unit 7-2 as in the second embodiment is used, as described above (see FIG. 5 and the description thereof), and if the sensor unit 7-3 as in the third embodiment is used, the tooth model is directly used. According to the force _f 1 ~f ₄ added to 1, the additional force in the z direction (z-axis axial force) _{F z,} and the x-axis moment _{M x} and y-axis moment _{M y,} can be measured.

Ｆ_ｘ＝Ｍ_ｘ／Ｌ、 Ｆ_ｙ＝Ｍ_ｙ／Ｌ
ここで、Ｌは歯モデル１の長さに応じて予め定められた値である。 For example, the CPU 201 obtains an x-direction additional force and a y-direction additional force as necessary based on the output of the sensor unit 7 as described below, and adds an additional force on the xy plane applied to the tooth model 1, that is, The magnitude F _xy of the resultant force of F _x and F _y is obtained.
The additional force F _xy on the tooth model 1 can be calculated from the additional forces F _x and F _{y in the x} and y directions by the following equation.

F _x = M _x / L, F _y = M _y / L
Here, L is a value determined in advance according to the length of the tooth model 1.

In order to measure the x-axis moment _{M x} and y-axis moment _{M y} by force _f 1, _{f 2} applied to the teeth model _1, strictly be f 1 = _{f 2,} the moment L ₁ f ₁ ≠ L ₂ f ₂ , but | L ₂ −L ₁ | is relatively smaller than (L ₁ + L ₂ ) / 2, and it is assumed that the difference in the position where the force is applied does not significantly affect the measurement. Can do. In addition, when the teacher and the practitioner apply a force to the same position of the teeth or in the vicinity, it is possible to make a comparison without any problem.

FIG. 11 is an explanatory diagram of a screen display example.
CPU201 processes the output measured by the sensor unit 7-1 to 7-3 of the dental appliance 100, additional force _{F xy} of the xy plane applied to the teeth model 1, the z-axis direction axial force _{F z} It is obtained and displayed on the display unit 204. Incidentally, CPU 201 may not display the axial force _{F z} in the z-axis direction on the display unit 204. Further, the CPU 201 sets identification information (ID) of a teacher and / or an instructor by using the input unit 205, and the force and / or moment is time-sequentially stored in the storage unit 203 for each instructor and / or instructor. You may make it memorize.

The figure is an example, and the CPU 201 displays the direction and size on the xy plane for the applied force F _xy on the xy plane applied to the tooth model 1. Further, the CPU 201 can display the axial force F _z in the z-axis direction, for example, by the thickness of a concentric ring. In addition, you may display using a moment instead of a shear force (translation force), and you may display both of these on 2 screens.
With such a display screen, the difference between the teacher and the practitioner is clarified, and the approximate magnitude of the absolute value of the force is known in addition to the direction of the force.

E. Effects of the embodiment

According to the present embodiment, the force applied to the tooth model is measured in the direction along the gum model (dentition model) (x-axis), the longitudinal direction of the tooth model, and the direction perpendicular to the gum model direction (y-axis). In addition, if necessary, it is possible to measure the longitudinal direction (z axis) of the tooth model and clearly display the additional force.
According to the present invention and the present embodiment, in any dental practice such as dentistry, nursing, etc., anyone can clearly understand the difference in force applied by the instructor and the practitioner, so it is easy to learn appropriate power adjustment It is very clear and ready for anyone to understand, such as the shortening of the training period, the transfer of optimal skills, and the differences between the practitioners. Thereby, the effect improvement of dental practice etc. and skill acquisition time can be shortened.

  The dental apparatus / system of the present invention includes a dental processing method for executing the processing, a dental processing program for causing a computer to execute each procedure, a computer-readable recording medium storing the dental processing program, and dental It can be provided by a program product that includes a processing program and can be loaded into the internal memory of the computer, a computer such as a server including the program, and the like.

10 Dental system 10
100 (100-1 to 3) Dental device (tooth model)
101 Head shape mannequin 200 Personal computer (PC)
1, 1 'tooth model for force measurement 2 tooth model 3 alveolar bone model 4 gum model 5 tooth model attachment part 6 force transmission member 7 (7-1 to 3) sensor part 8 (8-1 to 3) sensor attachment part

Claims (13)

A dental device,
A tooth model for force measurement;
A pressure-sensitive portion joined and fixed to the tooth model in a plane perpendicular to the longitudinal direction of the tooth model, and a biaxial moment around the axis perpendicular to the longitudinal direction by a force applied to the tooth model; A sensor unit for outputting a shear force in two axial directions;
A dental apparatus comprising: an alveolar bone model having a hole portion or a concave portion in which the pressure sensitive portion of the sensor portion is fixed and the tooth model is inserted with a gap in a crown side portion from the pressure sensitive portion.
The dental apparatus according to claim 1, wherein
The sensor device further measures an axial force in the longitudinal direction of the tooth model due to a force applied to the tooth model.
The dental apparatus according to claim 1 or 2,
The alveolar bone model has the recess,
The tooth model is
The crown side part,
A root side portion having an attachment portion to be attached and fixed to the recess of the alveolar bone model;
The sensor unit, which is inserted between the crown side portion and the root side portion, and is joined and fixed to the crown side portion and the root side portion on the vertical surface, and is integrated. The pressure sensitive part;
With
The sensor unit is based on the output of the pressure-sensitive unit, and the moment about two axes on the vertical plane with respect to the longitudinal direction due to the force applied to the tooth model, or the axial force and the longitudinal direction in the longitudinal direction A signal processing unit that obtains and outputs moments about two axes on a plane perpendicular to the direction;
At least the crown side portion is inserted with a gap from the tooth model so that the force applied to the tooth model can be detected, and the root side portion is placed on the bottom surface of the concave portion of the alveolar portion model by the mounting portion. Dental apparatus characterized by being attached.
The dental apparatus according to claim 1 or 2,
The alveolar bone model has the recess,
The sensor unit is
The pressure-sensitive part joined and fixed directly or via a force transmission member to the bottom surface of the recess of the alveolar bone model,
Based on the output of the pressure-sensitive part, the moment about two axes on the vertical plane with respect to the longitudinal direction due to the force applied to the tooth model, or on the vertical plane with respect to the longitudinal axial force and the longitudinal direction A signal processing unit for obtaining and outputting moments about two axes of
The tooth model, or the tooth model and the force transmission member are inserted into the recess of the alveolar part model with a gap from the tooth model so that the force applied to the tooth model can be detected. Features dental equipment.
The dental apparatus according to claim 3 or 4,
The dental apparatus according to claim 1, wherein the pressure-sensitive portion of the sensor portion uses a capacitance-type pressure-sensitive sensor, a capacitance-type tactile sensor, or a pressure-sensitive sensor having a plurality of pressure-sensitive rubbers.
The dental apparatus according to claim 1 or 2,
A force transmission member joined to one end of the tooth model;
The tooth model and the force transmission member are inserted into the hole portion of the alveolar bone model with a gap so as to detect the force applied to the tooth model,
The other end of the force transmission member and the sensor unit are joined and fixed,
The dental apparatus, wherein the sensor unit is attached so as to be joined and fixed to the alveolar bone model or a jawbone model having the alveolar bone model.
The dental apparatus according to claim 6,
The sensor unit directly measures and outputs the biaxial shear force or the longitudinal axial force and the biaxial shear force due to a force applied to the tooth model. And dental equipment.
The dental apparatus according to claim 6,
The sensor unit is
The pressure-sensitive portion having at least four pressure-sensitive sensors disposed on the vertical surface;
Based on the output of the pressure sensing unit, a signal processing unit for outputting the biaxial moment around the axis, or the longitudinal axial force and the biaxial moment about the axis, due to the force applied to the tooth model And a dental apparatus characterized by comprising:
A dental system,
The dental apparatus according to any one of claims 1 to 8,
A processing unit;
A display unit;
With
The said processing part is a dental system which calculates | requires the direction and intensity in the said vertical surface about the force applied to the said tooth model in the said vertical surface based on the output from the said sensor part, and displays it on the said display part.
The dental system according to claim 9,
The said processing part displays the predetermined appropriate range or other predetermined range about the direction and intensity in the said vertical surface on the said display part, The dental system characterized by the above-mentioned.
The dental system according to claim 9 or 10,
The processing unit further obtains the strength in the longitudinal direction of the force applied to the tooth model, and displays the strength in the longitudinal direction and the direction and strength in the vertical plane on the display unit.
The dental system according to any one of claims 9 to 11,
The processing unit stores the direction and strength in the vertical plane or the strength in the longitudinal direction and the direction and strength in the vertical plane with respect to preset apprentice identification information and / or teacher identification information. A dental system characterized by storing in a department.
A tooth model,
The crown side part,
A root side portion having an attachment portion to be attached and fixed to the recess of the alveolar bone model;
It is inserted between the crown side portion and the root side portion, and is joined and fixed to the crown side portion and the root side portion in a plane perpendicular to the longitudinal direction of the tooth model to form an integral structure. The pressure-sensitive part,
With
Based on the output of the pressure sensing unit by the signal processing unit, the moment about two axes on the vertical plane with respect to the longitudinal direction, or the axial force in the longitudinal direction and the longitudinal direction due to the force applied to the tooth model Find and output the biaxial moment around the axis perpendicular to the direction,
At least the crown side portion is inserted with a gap from the tooth model so that the force applied to the tooth model can be detected, and the root side portion is placed on the bottom surface of the concave portion of the alveolar portion model by the mounting portion. Tooth model to be installed.

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