JPH0810268A - Guiding device of dental treatment device - Google Patents

Abstract

PURPOSE:To provide a guiding device of a dental treatment device capable of easily forming abutment teeth. CONSTITUTION:A cutting means consisting of a tooth cutting blade 7 to be driven by an air turbine 6 mounted at a dental handpiece 8 is housed in a vessel 10 formed with guiding projections 11 on the periphery in its upper part. A cap 21 of a stainless steel casing 17 composed of a guiding vessel 18 and the cap 21 is internally and exchangeably provided with a guiding member 20 formed to turn around a guiding groove 24 to be fitted with the head part 6a of the air turbine 6. The guiding vessel 18 is internally and exchangeably provided with a guiding member 19 formed with guiding grooves 25 and 27 to be fitted with the guiding projection 11 formed at an auxiliary means 10 and the guiding projection disposed in the lower part of the vessel 10. The bottom of the guiding vessel 18 is provided with two sheets of plates 22 for fixing the casing 17 to the tooth 1 to be cut and the teeth 1a, 1b adjacent thereto. A dentist cuts the side face of the tooth 1 to be cut by having a cutting device guided along the guiding grooves 24, 25, 27.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental treatment device, and more particularly to a guide device for a dental treatment device comprising a cutting blade driven by an air turbine.

[0002]

2. Description of the Related Art Conventionally, when cutting teeth during dental treatment, a dental processing apparatus having a handpiece equipped with a cutting tool driven by an air turbine has been used. The handling is handled by a dentist. It is a very difficult task because it relies heavily on dentistry, and the dental treatment varies greatly depending on the dentist. In particular, in order to cover a dental prosthesis, when a tooth is cut to form an abutment, a dental handpiece is fixed to a finger to perform a complicated cutting operation.

[0003] Fig. 6 shows an example of the shape of a posterior tooth having an abutment tooth formed by the cutting process and an unprocessed posterior tooth.
6, (A) of FIG. 6 shows the buccal side of the molar 1 as shown in FIG.
6B shows a state in which the occlusal surface 2 of the molar 1 is cut, FIG. 6C shows a state in which the occlusal surface 2 is cut, and FIG. 6D shows the buccal side of the molar 1 by cutting the shoulder 3a. The state in which the
6E shows a state in which the shoulder 3b is formed by cutting the side surface between the cut adjacent teeth, as viewed from the direction indicated by the arrow in FIG. 6D.

As can be seen from the cut state, the shoulders 3a and 3b are formed along the height of the gingiva 4. In other words, the tongue and cheek shoulders 3a are
The shoulder 3b formed along the gingiva 4 in a gentle concave shape and formed on the side surface between adjacent teeth is generally formed along the gingiva in a gentle convex shape.

[0005]

As described above, the dentist has installed the dental handpiece on the dental handpiece in order to solve the difficulty in cutting using the dental handpiece equipped with the cutting tool. A guide device for accurately guiding a cutting tool is proposed.

[0006]

According to the present invention, there is provided a dental treatment device comprising a dental treatment device provided with a guide protrusion and a guide groove fitted with the guide protrusion of the dental treatment device provided with the guide protrusion. And a fixing means for fixing the casing to a tooth to be cut and a tooth adjacent to the tooth to be cut, and fitted with the guide protrusion of the dental processing apparatus provided with the guide protrusion. A housing for accommodating the dental processing device having a guide groove for is composed of a container and a lid that is openably and closably attached to the container, and a guide member having the guide groove formed inside the container is replaceably provided. A guide member provided with a guide groove that fits with a part of the dental processing apparatus itself is replaceably provided inside the lid of the container.

[0007]

First, a first embodiment of the present invention comprises a casing provided with a lid for guiding a cutting tool and a guide aid attached to the cutting tool in order to construct a guiding device. First, the guide assist tool will be described. Although this guide aid is attached to a cutting tool, a general cutting means 5 used by a conventional dentist is a cutting blade 7 that is driven by an air turbine 6 to rotate as shown in FIG. The cutting means 5 is attached to the handpiece 8.

An auxiliary tool 9 shown in FIGS. 3C to 3D is loaded on the cutting means 5 having the above-mentioned structure. The auxiliary tool 9
Is made of stainless steel and is composed of a container 10 into which the air turbine 6 is fitted, and a hole (not shown) having a shape into which the handpiece 8 is fitted is formed on one side surface of the container 10. Further, a rounded convex guide projection 11 described later is integrally formed so as to project over the entire upper circumference of the auxiliary tool 9. A hole 12 through which the cutting blade 7 is inserted is formed in the bottom of the container 10. Further, a rail 14 in which a T-shaped guide protrusion 13 described later is fitted around the bottom of the container 10.
Are formed.

A plurality of balls 16 are arranged between the upper portion of the T-shaped guide protrusion 13 and the rail 14 and the bottom of the container 10 to improve the sliding between the rail 14 and the bottom of the container 10. In addition, 10a is a hole for discharging cooling water for cooling the cutting blade 7 and the tooth to be cut.

By inserting the air turbine 6 into the auxiliary tool 9 having the above construction, the cutting blade 7 is projected from the hole 12, and the container 10 is loaded as shown in FIG. 3B. The device 15 is configured.

On the other hand, a casing for inserting and guiding the cutting device 15 will be described with reference to FIGS. 1, 2, 4 and 5. First, as shown in FIG. 1, FIG. 2 and FIG.
Is a stainless-steel guide container 18 capable of accommodating a stainless-steel guide member 19 having a guide groove, which will be described later, for guiding the cutting device 15, and a stainless-steel guide member 20 having a guide groove, which will be described later. A lid 21 of the guide container 18 which can be exchangeably housed, and a lid 21 which is attached in parallel to the bottom of the guide container 18 to project
It is composed of the plates 22 and 22. The lid 21 is shown in FIG.
As shown in, it is attached to the guide container 18 so as to be openable and closable.

The internal structure of the casing 17 having the above structure will be described below. First, the guide member 20 housed inside the lid 21 is formed with an air passage groove 23, which serves as a passage for the air from the air turbine 6, so as to make one round. The shallow guide groove 2 in which the head portion 6a of the air turbine 6 is fitted and guided around the air passage groove 23 that makes one round
4 is formed so that the height changes along the base of the gingiva, and a groove having a convex shape as a whole is formed together with the air flow path groove 23.

On the other hand, a guide groove 25 whose height changes along the base of the gingiva is formed around the entire inner wall of a stainless guide member 19 which is housed in the guide container 18 of the housing 17 in a replaceable manner. . When the cutting device 15 (FIG. 3) is accommodated, the guide groove 25 is provided with the guide protrusion 1
1 is a groove that fits and guides the cutting device 15 in the height direction and the circumferential direction. The height of the guide groove 25 is formed to change concavely on the buccal side and the lingual side of the tooth to be cut, corresponding to the shape of the gingiva as shown in FIG. 1B. In between, it is formed so as to change to a convex shape as shown in FIG.

Further, around the hole 26 formed in the bottom of the guide container 18, a guide groove 27 is formed in the guide member 19 so as to surround the hole 26, the height of which changes along the root of the gingiva. In this guide groove 27,
The T-shaped guide protrusion 13 provided on the auxiliary tool 9 is fitted. With the guide grooves 24, 25 and 27, the head portion 6a of the air turbine, the guide protrusion 11 and the T-shaped guide protrusion 13 provided on the auxiliary tool 9, the cutting device 15 is stably guided. Done.

Further, as described above, the two plates 22, 22 are attached to the bottom of the guide container 18, as shown in FIG.
As shown in (A) and (C), the guide container 18 is fixed to the teeth by sandwiching the tooth 1 to be cut and the adjacent teeth 1a and 1b with these two plates.

On one of the two plates 22, 22,
As shown in FIG. 5, the plate 22a that sandwiches the tooth to be actually cut and the movable plates 22b and 22c that sandwich the adjacent tooth are connected by a hinge 30 including a taper pin 28 and a stopper 29. The hinge 30 is provided for easy mounting when the housing 17 is fixed to the teeth. When actually mounting the housing 17 on the teeth, the stopper 29 is opened and the taper pin 28 is partially pulled out to loosen the hinge 30. After mounting the housing 17 on the teeth,
The hinge 30 is tightened with the taper pin 28, and the stopper 29 is rotated and fixed.

The movable plates 22b and 22c and the fixed plate 22
Although a is made of stainless steel, the fixing plate 22a may be made of transparent hard plastic so that the cutting state can be partially confirmed. With such a configuration, the movable plates 22b and 22c can be reliably fixed to the teeth of the housing 17 according to the thickness of the teeth.

A work of actually cutting a tooth by a dentist using the above-described auxiliary tool 9 and the casing 17 having the guide groove having the above-described structure will be described. First, the cutting means 5 provided with the air turbine 6 according to the form of the tooth to be cut is fitted into the auxiliary tool 9 to prepare the cutting device 15.

On the other hand, the dentist prepares the casing 17 according to the form of the tooth to be cut, opens the two movable plates 22b and 22c attached to the bottom of the guide container 18 of the casing 17, and cuts the same. The teeth to be cut are sandwiched between the fixed plates 22a, and at the same time, the teeth adjacent to the teeth to be cut are sandwiched between the movable plates 22b and 22c to fix the housing 17 to the teeth. After that, the lid 21 of the housing 17 is opened and the guide protrusions 11 and 13 of the cutting device 15 are opened.
Are installed so as to fit into the corresponding guide grooves 25 and 27, and the lid 21 is closed, and at the same time, the dental practitioner is instructed to bite the housing 17 lightly.

The main part of the above state is shown in FIG. In FIG. 1A, the housing 1 has teeth 1 to be cut.
And fixed to the adjacent teeth 1a, 1b, the dentist operates the air turbine 6 to rotate the cutting blade 7, by guiding the cutting device 15 along the guide grooves 24, 25 and 27, The periphery of the tooth 1 to be cut is cut into a predetermined shape so as to form the shoulders 3a and 3b (FIG. 6), and tooth teeth are formed.

A plurality of casings 17 having a shape corresponding to the form and position of the tooth to be cut (whether front teeth or molars) are prepared, and the casing 17 is cut using a casing suitable for the teeth and gingiva of the therapist. Needless to say, unless extreme care is taken in cutting, it will cause pain to the therapist, so the housing is made of a transparent hard material so that you can check the state during cutting. Is preferred.

In order to prevent discomfort from coming into contact with the inside of the oral cavity when the therapist bites the casing 17, a cushioning material 31 for cushioning is fixed to the upper surface of the lid 21. . Further, if the cushioning material 31 is attached when the casing is used so that it can be replaced, the guide device of the present invention can be used more hygienically.

In the case of the above embodiment, as the guide groove and the guide protrusion, the guide groove 24 for guiding the head of the air turbine is guided in the guide member 20 accommodated in the lid, and the guide member 19 accommodated in the container 18. In the guide groove 25
And 27 and the guide projection 1 on the auxiliary tool 9 of the cutting device.
Although 1 and 13 are provided, it is possible to implement without providing the guide groove 25 and the guide protrusion 11 among the guide groove and the guide protrusion.

Further, in the case of the above embodiment, the cutting means 5
However, instead of using the auxiliary tool 9, a guide projection is provided directly around the upper portion of the air turbine, and a guide projection is provided directly around the bottom portion to form the cutting means. It can also be carried out by attaching to the handpiece.

[0025]

As described above, since the guide device of the present invention can be formed compactly, the dentist does not need to open the mouth for a long time when the dentist uses the guide device to form an abutment tooth. It can be safely formed while biting. In addition, if a plurality of patterns of the guide device are prepared according to the shape of the inside of the oral cavity of the therapist, it is possible to create a fixed tooth tooth corresponding to the pattern. Therefore, it becomes possible to mass-produce prostheses according to the pattern of the guide device in advance, and it is not necessary to mold the oral cavity. Furthermore, since the tooth formation is patterned, it is not necessary to insert a temporary tooth, which has been performed up to now, and it is possible to reduce the situation of causing inflammation of the tooth gap of the healer.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of an embodiment of the present invention.

FIG. 2 is a plan view of a guide groove according to the embodiment of the present invention.

FIG. 3 is an explanatory view of an auxiliary tool used in the guide device of the present invention.

FIG. 4 is an explanatory diagram of a casing used for the guide device of the present invention.

FIG. 5 is an explanatory view of a device for fixing the guide device of the present invention to a tooth.

FIG. 6 is an explanatory diagram of a tooth for forming an abutment tooth by cutting.

[Explanation of symbols]

 1 Tooth to be cut 3a, 3b Shoulder 6 Air turbine 7 Cutting blade 9 Auxiliary tool 11 Guide protrusion provided on the auxiliary tool 17 Housing 18 Guide container 19, 20 Guide member 21 Guide container lid 22 Fixing housing to teeth Plate 24, 25, 27 Guide groove

Claims (7)

[Claims] 1. A housing for accommodating the dental treatment device, comprising: a dental treatment device provided with a guide protrusion; and a guide groove fitted with the guide protrusion of the dental treatment device provided with the guide protrusion, and a cutting tool. A guide device for a dental treatment apparatus, comprising: a tooth to be cut and a tooth to be cut; and fixing means for fixing the casing to the tooth adjacent to the tooth. 2. A housing for accommodating the dental treatment device, which comprises a guide groove for fitting with the guide protrusion of the dental treatment device provided with the guide protrusion, comprises a container and a lid which is openably and closably attached to the container. The guide device for a dental treatment apparatus according to claim 1, wherein a guide member having the guide groove is provided inside the container and the lid so as to be replaceable. 3. A housing for accommodating the dental treatment device, which comprises a guide groove for fitting with the guide protrusion of the dental treatment device provided with the guide protrusion, is composed of a container and a lid which is openably and closably attached to the container. , A replaceable guide member having the guide groove formed inside the container, and a replaceable guide member having a guide groove fitted inside the lid of the container with a part of the dental treatment apparatus itself The guide device for a dental treatment device according to claim 1, wherein the guide device is a dental treatment device. 4. A dentist equipped with the auxiliary container, the auxiliary container having a guide protrusion to be mounted on the dental treatment apparatus, and the guide groove fitted to the guide protrusion of the auxiliary container having the guide protrusion. A guide device for a dental processing apparatus, comprising: a housing containing a processing device; and a fixing means for fixing the housing to a tooth to be cut and a tooth adjacent to the tooth to be cut. 5. A housing for accommodating a dental treatment device equipped with the auxiliary container comprises a container and a lid that is openably and closably attached to the container, and a guide member having the guide groove formed inside the container. The dental treatment device according to claim 4, wherein a guide member that is provided so as to be replaceable and that has a guide groove that fits with a part of the dental treatment device itself is provided inside the lid of the container. Guidance device. 6. The dental processing apparatus is a dental processing apparatus including a cutting blade for cutting a side surface of a tooth and an air turbine for driving the cutting blade.
The guide device of the dental treatment device according to 2, 3, 4 or 5. 7. The guide device for a dental treatment apparatus according to claim 2, wherein each of the guide members is made of stainless steel.