JP2000342608A - In-mouth cavity recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply perform each work of in-mouth cavity recording operations in a short time. SOLUTION: This in-mouth cavity recording device consists of a supermaxilla plate A, a mandibulum plate B, and a connection device C connecting them. The supermaxilla plate A is provided with a supermaxilla plate main body, a guide support column stud, a stud mounting hole, a drawing and recording pin mounting hole, and an auxiliary stud, the mandibulum plate B is provided with a mandibulum plate main body, a guide drawing and recording plate, a connection hole, and a movement path formation table, and the connection device C is provided with a supermaxilla plate connection part, a mandibulum plate connection part, and plate interval fixing screw. A part or all of the connection hole, the stud mounting hole, the drawing and recording pin mounting hole, and the connection hole are formed out of a magnet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intraoral recording apparatus used for recording a center relation and a jaw movement of a jaw in a dental clinic.

[0002]

2. Description of the Related Art In recent dental practice, the use of dental prostheses made of cutting-edge materials such as implants and ceramics has increased in many cases, and accurate measurement and recording of the movement of the jaw and the position where the jaw is stabilized are required. The need for has been recognized. Also, in order to maintain the health of the oral cavity with the dental prosthesis installed for a long period of time, it is essential to accurately measure and record the movement of the jaw and the position where the jaw is stabilized, which is an indispensable condition for the production of a dental prosthesis. Has become.

Representative methods used for measuring and recording the center relation of the jaw and the movement of the lower jaw include a check bite method, a pantograph method, and a chewing method. Among them, the check byte method using a drawing device is the most widely adopted measurement and recording method.

The drawing device used in the check bite method is a device of a type in which a drawing pin is attached to an upper jaw and a flat drawing plate is further attached to a lower jaw. It is possible to draw a horizontal mandibular movement path. This lower jaw path is composed of three arrowhead-like lines with one vertex, and this drawing is called a Gothic arch.

The record of the center relation of the jaw and the record of the mandibular movement are recorded on paraffin wax or the like by the check bite method based on this gothic arch. In order to accurately record the center relation of the jaw and the mandibular movement, it is necessary to draw this Gothic arch with high precision.

Japanese Patent Publication No. 59-18053 (Patent No. 1)
No. 245,692) is known to be capable of performing accurate recording not only in edentulous patients but also in cases of local dentures and dentulous patients. Many are used.

The intraoral recording apparatus disclosed in this publication comprises an upper jaw plate A shown in FIGS. 5 and 6, a lower jaw plate B shown in FIGS. 8 and 10, and a connecting device C shown in FIG. As shown in FIGS. 13 and 14, the gothic arch is attached to the inside of the oral cavity and a check bite is obtained.

The upper jaw plate A shown in FIG. 5 projects downward substantially at the center of a U-shaped upper jaw plate body a.
The guide post stud 2 having a rotating ball 4 at the protruding end, two auxiliary studs 3 and 3 provided symmetrically downward at the rear end of the upper jaw plate body a, and the front end e of the upper jaw plate body a. Cylindrical holder 2 projecting downward
4 having a pin device f.

FIG. 6 shows a cross section of FIG. 5IIA-IIA. According to FIG. 6, in order to guide the jaw movement and maintain the vertical jaw separation distance, the strut stud 2 whose length can be freely adjusted, and the stud fixing for fixing the guidance strut stud 2 when the length is adjusted A screw 8 is provided.
A drawing pin 1 for drawing a gothic arch is detachably attached to the hollow cylindrical holding portion 24 of the pin device f, and a pin holding device h for fixing the drawing pin 1 is provided. I have.

FIG. 7 shows a main part of the pin device f. FIG.
As shown in the figure, the pin holding device h includes a pin stopper 5 for holding the drawing pin 1, an elastic member 6, and an elastic member set screw 7. A pin spring 23 for holding downward pressure is attached to the outer periphery of the drawing pin 1.

FIG. 8 is a front view showing the lower jaw plate B from behind. As shown in FIG. 8, the lower jaw plate B includes a lower jaw plate main body b and a recording floor connecting portion d. The lower jaw plate body b is provided with a drawing table 9 for mounting a drawing plate 9a provided at a tip end thereof, and a guidance table 10 provided at a central portion for mounting a guidance plate 10a.
The letter-shaped recording floor connecting portion d is provided with two movement path forming tables 11, 11 for attaching movement path records 11a symmetrically provided at the rear end thereof. The lower jaw plate main body b and the recording floor connecting portion d are detachably fixed by lower jaw plate main body fixing screws 25, 25.

FIG. 9 shows the drawing table 9 located at the forefront in the oral cavity. On the surface of the drawing table 9, a drawing plate 9a is formed. The drawing plate 9a is made of a plastic material such as an instantly polymerized resin placed on the surface of the drawing table 9, and is provided with the drawing pin 1 attached to the upper jaw plate A.
The movement of the drawing pin 1 is recorded as a gothic arch by abutting the needle at the tip of.

FIG. 10 shows a cross section of the lower jaw plate B. The guidance table 10 has a guidance plate 1 made of a processable resin.
0a is attached. The guide plate 10a is formed on a three-dimensional inclined surface corresponding to the guide post stud 2 attached to the upper jaw plate A, records the incisor path angle unique to the patient, and comes into contact with the guide post stud 2. It serves as a sliding guide and guides jaw movements for recording a track record. The guidance board 10a is connected to the guidance table 10 by a guidance board fixing screw 26 as shown in FIG.

Further, a plastic material such as putty-like silicon rubber is placed on the motion path forming tables 11 and 11 to form a motion path record 11a. This track record 1
1a guides the patient's jaw while sliding the guide strut 2 on the incisor path angle recorded on the guide plate 10a, so that the auxiliary studs 3, 3 of the upper jaw plate A are made of plastic silicon rubber or the like. It is recorded and formed by three-dimensional engraving on it.

A connecting device C shown in FIG. 12 includes a connecting shaft 14, an upper jaw plate supporter 15, a lower jaw plate supporter 16, a plate spacing fixing screw 17, and a lower jaw plate B.
And a connecting screw 13 for connecting. The connecting device C, the upper jaw plate A and the lower jaw plate B are connected, and the upper jaw plate A is connected to the recording floors X and Y shown in FIGS.
And a lower jaw plate B. Upper jaw plate A, lower jaw plate B
The recording floors X and Y to which are respectively attached are removed from the connecting device C and fixed in the oral cavity with an adhesive such as cement.

[0016]

However, in the conventional intraoral recording apparatus, the pin device f is used in the recording forming step of the drawing board 9a, the gothic arch drawing step, and the check bite obtaining step, and the pin 19 for forming the drawing board. The structure for attaching and detaching the drawing pin 1 and the chin fixing pin 18 is complicated, and there is a problem that a failure such as breakage of the elastic material 6 occurs.

The main body of the guide post stud 2 is a male screw, and the screw portion of the guide post stud 2 is turned to determine the vertical interchin distance, and the stud fixing screw 8 is tightened and fixed in the process of screwing. Although the length of the support stud 2 is adjusted, there is a problem that the support stud 2 is easily loosened.
Further, the guide post stud 2 can be fixed to maintain the determined length by the stud fixing screw 8, but there is a disadvantage that the stud fixing screw 8 is easily loosened.

In the process of connecting the guiding plate 10a to the guiding plate table 10 of the lower jaw plate B with the guiding plate fixing screw 26, the guiding plate 10a is fixed to the guiding table 10 by the guiding plate fixing screw 26, and is detachable for adjustment. Although it is possible, there was a risk of medical accidents, such as the small screws and dropping of screws and adjustment devices into the oral cavity.

The drawing board 9a is made by using a resin with the drawing board forming pins 19 in the recording forming process of the drawing board 9a, but the operability of the preparation is poor and complicated.
Also, in the connecting step for adjusting the start position with the horizontal position being fixed, the upper jaw plate A and the lower jaw plate B are connected using the connecting device C. In this connection, the connecting shaft 14 and the upper jaw plate supporter are used. 15,
Lower jaw plate supporter 16, plate spacing fixing screw 17
Further, since the connecting screw 13 must be used, the operability is poor and complicated.

[0020]

SUMMARY OF THE INVENTION The present invention has been made in view of these problems, and comprises an upper jaw plate, a lower jaw plate, and a connecting device for connecting these, and the upper jaw plate has a U-shape. At the approximate center of the upper jaw plate body, a connecting hole opened downward for connecting a teaching post stud, a stud mounting hole opened lower for connecting a connecting device, and extending forward of the upper jaw plate body. A downwardly-opened drawing pin mounting hole for mounting a drawing pin at the end of the formed front end, and two movement paths projecting symmetrically downward from the rear end of the upper jaw plate body are recorded. With auxiliary studs for

The lower jaw plate is symmetrically moved at the center of the U-shaped lower jaw plate main body, at a connecting hole for connecting a teaching drawing board or a connecting device, and at a U-shaped rear end of the lower jaw plate main body. And a road forming table,

[0022] The connecting device includes an upper plate connecting portion having a stud for connecting to the upper plate, a lower plate connecting portion having a stud for connecting to the lower plate, an upper plate connecting portion and a lower plate. With a plate spacing fixing screw that connects the connecting part,

[0023] The connection hole, stud mounting hole, drawing pin mounting hole provided in the upper jaw plate and part or all of the connection hole provided in the lower jaw plate are formed by magnets.

In the present invention, the drawing plate forming pin 19, the drawing pin 1, and the chin fixing pin 18 are fixed to the drawing pin mounting hole 40 by magnets, respectively, so that attachment / detachment is simple and complicated operations such as screw tightening are performed. No need.

The guide post stud 2 is provided with a connecting hole 27.
, The attachment and detachment for adjusting the jaw interval is easy, the operation is not complicated, and the clinical adjustment time is shortened.

By combining the teaching table 10 and the drawing board table 9 conventionally provided separately on the lower jaw plate B into the teaching drawing board 33, the attaching / detaching process can be performed only once and mounting the lower jaw plate B. Are the connection holes 36a, 3
Since it is fixed by the magnets 6b and 36c, it can be easily attached and detached.

For this reason, the position adjustment process and the record forming process of the guidance board 10a and the detachment from the oral cavity in the record forming process, the gothic arch drawing process, and the check bite obtaining process of the drawing board 9a can be performed quickly in clinical practice. .

Further, a metal drawing plate portion 34 is detachably attached to the drawing plate portion 33b in front of the instruction drawing plate 33, so that the energization between the drawing pin 1 and the metal drawing plate portion 34 can be detected. Also, when a small hole in the check bite obtaining step cannot be confirmed due to being blocked by the front teeth, the electric detector 200 (see FIG. 15) can confirm the small hole with a buzzer sound or the like.

Further, a connecting step for connecting the upper jaw plate A and the lower jaw plate B using a connecting device C to adjust a start position with a constant vertical, horizontal position,
The adjustment step and the disconnection step can be easily performed by attaching and detaching with a magnet. Further, the connecting device C can be separated into the upper jaw plate connecting portion 29 and the lower jaw plate connecting portion 30 only by loosening the plate spacing fixing screw 17, so that the connection can be released in a short time.

[0030]

Embodiments of the present invention will be described in detail with reference to the drawings. Note that the same reference numerals are given to the same functional forms as those in the related art, and redundant description will be omitted.

The intraoral recording apparatus according to the embodiment of the present invention shown in FIG. 1 has a three-dimensional form approximating the curvature of the palate, and a narrow U-shaped upper jaw plate A which is hollowed out from the center to the rear. And a lower U-shaped lower jaw plate B cut out from the center to the rear, and a connecting device C for connecting these.

By forming the upper and lower jaw plates A and B in a U-shape, the upper and lower jaw plates A can be attached in close contact with the palate, and the lower and upper jaw plates B can be positioned upward to prevent the tongue from being pressed. . In addition, the tongue of the patient can be accommodated in the hollowed portion of the lower jaw plate B, which prevents the lower jaw plate B from pressing the tongue and lifting the lower jaw plate B due to the pressure of the tongue during recording.

As shown in FIG. 2A, the upper jaw plate A
Is a connection hole 27 formed at the substantially center of the upper jaw plate main body a by a magnet opened downward for connecting the teaching post stud 2 and a magnet opened downward to connect the connection device C. A stud mounting hole 28 formed, a drawing pin mounting hole 40 formed by a downwardly opened magnet for mounting the drawing pin 1 at a tip of a front end e extending forward of the upper jaw plate body a, Auxiliary studs 3, 3 are provided symmetrically at the rear end of the upper jaw plate body a to project two downwardly symmetrical movement paths.

The guide post stud 2 shown in FIG.
It has a rotating ball 4 at its tip and is removably fixed to the connection hole 27 with a magnet, and guides the lower jaw plate B in the guiding plate 10a forming step, the motion path recording forming step, the drawing board forming step, and the gothic arch drawing step. Table section 33a
To form a trajectory in the plastic material, and slide on the guide plate 10a to induce jaw movement.

Similarly, the motion path forming auxiliary studs 3 have a rotating ball 4 at the protruding end, and come into contact with the motion path forming tables 11 of the lower jaw plate B in the motion path recording forming step, so that the studs 3 are attached to the plastic material 9. Form a trajectory and record the movement path 11a,
11a is recorded and manufactured. In addition, in the drawing board forming step and the Gothic arch drawing step, the user slides on the movement path records 11a of the lower jaw plate B to induce jaw movement.

The drawing pin 1 is inserted into a drawing pin mounting hole 40 formed by a magnet, and is detachably fixed. The mounting length of the drawing pin 1 can be easily achieved by sandwiching pin spacers 20 (see FIG. 3 (e)) having different lengths.

The drawing pin mounting hole 40 has a drawing plate 9a
In the record forming step, the drawing board forming pin 19 is attached, in the Gothic arch drawing step, the drawing pin 1 is attached, and in the check bite acquiring step, the chin fixing pin 18 is attached. In this way, the pins used in each step can be easily detached and replaced (not shown).

The lower jaw plate B shown in FIG.
At the center of the lower jaw plate body b having the shape of a letter, connecting holes 36a, 36b, 36c formed by magnets for connecting the instruction drawing plate 33 or the connecting device C, and the lower end of the lower jaw plate body b (7) U-shape Movement path forming tables 11 and 11 are provided symmetrically to the parts. In FIG. 2C, the instruction drawing plate 3 is provided above the connection holes 36a, 36b and 36c.
3 is detachably attached by a magnet.

The guidance drawing board 33 is formed by integrating a rear guidance table section 33a and a front drawing board section 33b. In the guidance table portion 33a, the guidance plate 10a is placed in the guidance plate 10a forming process, and the upper jaw plate A
Of the supporting post stud 2. The drawing plate 9a is placed on the drawing plate portion 33b, and corresponds to the drawing plate forming pin 19 in the recording forming process of the drawing plate 9a, corresponds to the writing pin 1 in the Gothic arch drawing process, and in the check bite obtaining process. Each operation is performed in correspondence with the chin fixing pin 18.

The motion path forming tables 11 and 11 place a plastic material such as putty-like silicon rubber, and correspond to and abut against the motion path forming auxiliary studs 3 and 3 of the upper jaw plate A in the motion path forming step. It is produced by engraving and recording the movement path record 11a three-dimensionally.

A connecting device C shown in FIG. 2B includes an upper plate connecting portion 29 having studs 31a and 31b for connecting to the upper plate A, studs 32a and 32b for connecting to the lower plate B, The lower jaw plate connecting portion 30 having the lower jaw plate 32c and the plate gap fixing screw 17 connecting the upper jaw plate connecting portion 29 and the lower jaw plate connecting portion 30 are provided.

This connecting device C connects the upper jaw plate A and the lower jaw plate B, and adjusts the upper jaw plate A and the recording floor X, and the lower jaw plate B and the recording floor Y to a start position in which the horizontal position is constant. I do. After being adjusted to the optimum position, it is used for positioning together with the adjustable articulator 100 in the connection step and the adjustment connection step in order to immediately fix it with a binder such as a polymerization resin.

After these steps, in the connection releasing step of disassembling the upper and lower jaw plates A and B, the upper and lower jaw plate connecting sections 29 and 30 can be separated only by loosening the plate spacing fixing screw 17. Connection can be released in a short time.

A connection hole 2 provided in the upper jaw plate A
7, stud mounting holes 28 and drawing pin mounting holes 40, and connection holes 36a, 3b provided in the lower jaw plate B;
Since a part or the whole of 6b, 36c is formed by the magnet, each operation of the intraoral recording operation can be easily and quickly performed.

Further, since the drawing plate forming pin 19, the drawing pin 1 and the chin fixing pin 18 are respectively fixed to the drawing pin mounting holes 40 by magnets, they can be easily attached and detached and require complicated operations such as screw tightening. do not do.

Since the guide post stud 2 is fixed by the magnet of the connection hole 27, it can be easily attached and detached for adjusting the jaw interval, there is no complicated operation, and the clinical adjustment time is shortened.

Further, by combining the teaching board table 10 and the drawing board table 9 which are conventionally provided separately on the lower jaw plate B into the teaching board 33, the attaching / detaching process can be completed only once and the lower jaw plate B Of the connection hole 36
Since they are fixed by the magnets a, 36b, and 36c, attachment and detachment can be easily performed.

For this reason, the position adjusting step and the record forming step of the guidance board 10a in clinical practice, the record forming step of the drawing board 9a,
The detachment from the oral cavity in the gothic arch drawing process and the check bite obtaining process can be quickly performed.

Further, a metal drawing plate portion 34 is detachably attached to the drawing plate portion 33b in front of the instruction drawing plate 33, so that the energization between the drawing pin 1 and the metal drawing plate portion 34 can be detected. Also, when a small hole in the check bite obtaining step cannot be confirmed due to being blocked by the front teeth, the electric detector 200 (see FIG. 15) can confirm the small hole with a buzzer sound or the like.

[0050]

As described above in detail, the intraoral recording apparatus of the present invention has the following effects. That is, by forming the upper jaw plate A and the lower jaw plate B in a U-shape, the upper jaw plate A can be attached in close contact with the palate, and the lower jaw plate B is also positioned upward to prevent the tongue from being pressed. In addition, the tongue of the patient can be accommodated in the hollowed portion of the lower jaw plate B, thereby preventing the lower jaw plate B from pressing the tongue and lifting the lower jaw plate B due to tongue pressure during recording. Precise measurement records can be made.

A connection hole 2 provided in the upper jaw plate A
7, stud mounting holes 28 and drawing pin mounting holes 40, and connection holes 36a, 3b provided in the lower jaw plate B;
Since a part or the whole of 6b and 36c is formed by a magnet and does not use any screws, each operation of the intraoral recording operation can be performed easily and in a short time.

More specifically, since the drawing plate forming pin 19, the drawing pin 1 and the chin fixing pin 18 are respectively fixed to the drawing pin mounting holes 40 by magnets, they can be easily attached and detached and tightened with screws each time they are replaced. Does not require complicated operations.

Since the guide post stud 2 is fixed by the magnet in the connecting hole 27, it can be easily attached and detached for adjusting the jaw interval, there is no complicated operation, and the clinical adjustment time is shortened.

In the connection releasing step, the plate gap fixing screw 17 is used.
By simply loosening the connection, the upper jaw plate connecting part 29 and the lower jaw plate connecting part 30 can be separated, and the connection can be released in a short time.

Further, by combining the instruction board table 10 and the drawing board table 9 separately provided on the lower jaw plate B into the teaching drawing board 33, the attaching and detaching process can be completed only once and the lower jaw plate B and Of the connection hole 36
Since they are fixed by the magnets a, 36b, and 36c, attachment and detachment can be easily performed.

Therefore, it is possible to quickly attach and detach the guidance plate 10a from the oral cavity during the position adjusting step and the record forming step of the clinical board, the recording forming step of the drawing board 9a, the gothic arch drawing step, and the check bite obtaining step. .

Further, a metal drawing plate portion 34 is detachably attached to the drawing plate portion 33b in front of the instruction drawing plate 33, so that the energization between the drawing pin 1 and the metal drawing plate portion 34 can be detected. Also, when a small hole in the check bite obtaining process cannot be confirmed due to being blocked by the anterior teeth portion, it can be confirmed by the electric detector 200 by a buzzer sound or the like.

[Brief description of the drawings]

FIG. 1 is a perspective view of an intraoral recording apparatus according to an embodiment of the present invention.

FIGS. 2A and 2B are perspective views of the upper device A, FIG. 2A is a perspective view of a connecting device C, and FIG.

3A is a plan view of an upper jaw plate A, FIG. 3B is a bottom view thereof, FIG. 3C is a jaw fixing pin, FIG. 3D is a drawing plate forming pin, and FIG. 3E is a front view of a pin spacer. .

4A is a plan view of a lower jaw plate B, and FIG. 4B is a plan view thereof.

FIG. 5 is a plan view of a prior art upper jaw plate A.

FIG. 6 is a front view showing a partial cross section taken along line IIA-IIA in FIG. 5;

FIG. 7 is a partially enlarged sectional view of a conventional pin device.

FIG. 8 is a right side view of the lower jaw plate B of the prior art.

FIG. 9 is a cross-sectional view of a drawing board of the prior art.

FIG. 10 is a cross-sectional view in which a drawing board, an instruction board, and a jaw movement path are formed on the surface of a lower jaw plate B of the related art.

FIG. 11 is a perspective view of a conventional instruction board.

FIG. 12 (a) is a plan view of a conventional connection device, and FIG.
The front view.

FIG. 13 is a perspective view showing a position in the upper jaw of a conventional maxillary plate.

FIG. 14 is a perspective view showing a position in a lower jaw of a lower jaw plate of the related art.

FIG. 15 is a schematic view showing connection with a conventional electric detector.

FIG. 16 is a perspective view showing an adjustable articulator.

[Explanation of symbols]

 A upper jaw plate B lower jaw plate a upper jaw plate main body b lower jaw plate main body C connecting device d lower jaw plate recording floor connection part e front end of upper jaw plate main body f pin device g front end of lower jaw plate main body h pin holding device X upper jaw recording floor Y Lower jaw recording floor m Magnet 1 Drawing pin 2 Guidance support stud 3 Motion path formation auxiliary stud 4 Rotating ball 5 Pin stopper 6 Elastic material 7 Elastic material stop 8 Stud fixing screw 9 Writing table 9a Writing board 10 Guidance table 10a Guidance board 11 Movement Road forming table 11a Motion path recording 12 Metal wire connecting part 13 Connecting screw 14 Connecting shaft 15 Upper jaw plate supporter 16 Lower jaw plate supporter 17 Plate spacing fixing screw 18 Jaw fixing pin 19 Drawing plate forming pin 20 Pin spacer 23 Pin spring 24 Cylindrical Guarantee Part 25 Lower jaw plate main body fixing screw 26 Leader plate fixing screw 27 Upper jaw connecting hole 28 Stud mounting hole 29 Upper jaw plate connecting part 30 Lower jaw plate connecting part 31a, b Stud 32a, b, c Stud 33 Instruction drawing board 33a Instruction board part 33b Drawing Plate part 34 Metal drawing board part 35 Metal drawing board mounting screw 35a Screw hole 36a, b, c Lower jaw connecting hole 36m Lower jaw connecting magnet part 40 Drawing pin mounting hole 40m Pin connecting magnet part

Claims (1)

[Claims] 1. An upper jaw plate, a lower jaw plate and a connecting device for connecting them, wherein the upper jaw plate is
At the substantially center of the U-shaped upper jaw plate body, a connection hole opened downward for connecting the teaching post stud,
A stud mounting hole opened downward for connecting the connecting device, a drawing pin mounting hole downwardly opened for mounting a drawing pin at a tip of a front end extending forward of the upper jaw plate body, and an upper jaw Auxiliary studs for recording two movement paths symmetrically protruding downward from the rear end of the plate body, respectively, and the lower jaw plate has a U-shaped lower jaw plate main body at a central portion thereof. A connecting hole for connecting a teaching drawing board or a connecting device, and a movement path forming table symmetrically at a U-shaped rear end of the lower jaw plate main body, wherein the connecting device includes a stud for connecting to the upper jaw plate. An upper jaw plate coupling with a lower jaw plate coupling with a stud for coupling with the lower jaw plate,
A plate gap fixing screw for connecting the upper jaw plate connecting portion and the lower jaw plate connecting portion, wherein a connection hole provided on the upper jaw plate, a stud mounting hole, a drawing pin mounting hole, and a connection hole provided on the lower jaw plate. An intraoral recording apparatus characterized in that a part or the whole is formed by a magnet.