JPS6153058B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a device for retaining a root canal boring tool in a dental instrument that includes a vibration transmission section thereto.

Dental vibratory instruments of this type have already been disclosed, inter alia, in US Pat. No. 4,330,278.

In this patent, a root canal instrument is fixed on a fixing sleeve of a vibrating device, the construction featuring a conventional closing clip being tilted.

This device has the disadvantage that the user must have appropriate equipment for each root canal.
By the way, the practitioner uses manual dental equipment, whether by hand or by performing other root canal widening techniques, such as those described in French Patents No. 1397366 and No. 1455922 in the name of the applicant. Move various root canal equipment as you wish.

The invention therefore applies to, for example, rasp K, broches K, Hedström.
Existing root canal equipment such as, but not limited to, any root canal equipment that has the function of widening the hole, i.e., enlarging the root canal, such as (but not limited to) sharpeners, rasps, etc. A device for retaining a root canal instrument within a dental instrument, of the type described above, which can be used with the present invention.

According to the invention, this result consists of the holding device consisting of a hollow, substantially tubular body, one end of which is connected to the vibration transmitting part of the dental instrument, and the other end forming an elbow-shaped bend; A perforation that is an extension of the inner sinus of the elbow-shaped curved part is provided at a corner of the elbow-shaped curved part, and a root canal boring tool is disposed within the elbow-shaped curved part and the perforation, and the main body of the tubular body. A device for holding a root canal boring tool in a dental instrument comprising a vibration transmitting part, characterized in that the device is held by a nut screwed onto the root canal boring tool.

The present invention will become more apparent from the following description of embodiments with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a dental instrument including a vibration transmitting part to a boring tool 2, to which a hollow, generally tubular body 3 is screwed. The tubular body 3 vibrates together with the vibrating dental equipment. The vibrating dental device may be of any type, for example as disclosed in French patent application No. 81-09139 in the name of the applicant.
It would be very convenient to use the tartar removal device described in the issue. By simply fitting the tubular body 3 to the end of a scale removal device of this type, a vibratory boring device is obtained.

One end of the tubular body 3 is screwed onto the device 1, more precisely onto its vibration transmission part.

The tubular body 3 extends as a straight body portion 4 and has an elbow-shaped bend 5 at its other end. The corners 6 of the elbow bend 5 are provided with perforations 7 which are formed precisely as an extension of the inner cavity of the elbow bend 5 and whose diameter is at least equal to the diameter of the inner cavity.

A nut 8 is screwed onto the straight body part 4 and moves thereon.

The operation of the device will be explained below.

A boring tool 2 is inserted into the elbow-shaped curved portion 5 and its rod 10 is passed through the borehole 7. The nut 8 on the body part 4 is then unscrewed and the chamfered end 9 of the nut 8 is pressed against the rod 10 of the boring tool 2. In this way, the boring tool 2 is fixed and vibrates together with the vibrating dental equipment.

By vibrating the boring tool 2 in the root canal,
The wall of the root canal is scraped with an intensity corresponding to the roughness of the surface of the boring tool 2. For example, a rasp for starting the expansion or a smooth-edged, non-extensible spike for finishing can be used.

The liquid used in the tartar removing device flows inside the inner barrel 11, and part of it is discharged behind the boring tool 2, but part of it flows along the boring tool 2 to clean the root canal. Fragments of dentin scraped away from the root canal wall are easily removed.

To be used depending on the position of the root canal to be treated,
It is possible to use a boring tool support device in which the elbow-shaped curved portion 5 has various bending angles.

The boring tool 2 can be fixed by extending the required length from the elbow-shaped curved part 5, but in that case, the surface 12 of the elbow-shaped curved part 5 has a receiving part to prevent the tip of the boring tool 2 from protruding. play a role.

This device can work with any type of boring tool and
In particular, it can cooperate with conventional manual boring tools having handles 13 as shown in dotted lines.

By using the tubular body 3 as an intermediate part, dental equipment 1 such as a tartar removal device of a known structure
A novel combination is created between this and the boring tool 2, which also has a known structure.

[Brief explanation of the drawing]

The figure shows a partial longitudinal sectional view of a holding device according to the invention. DESCRIPTION OF SYMBOLS 1... Dental equipment, 2... Boring tool, 3... Tubular body, 4... Main body part, 5... Elbow-shaped curved part, 6...
... corner, 7 ... perforation, 8 ... nut, 9 ... end,
10...rod, 11...nai-do, 12...face.

Claims (1)

[Scope of Claims] 1. The holding device is composed of a hollow substantially tubular body, one end of the tubular body is connected to a vibration transmitting part of a dental instrument, and the other end is formed with an elbow-shaped curved part, and the elbow-shaped curved part is formed at the other end. A perforation that is an extension of the inner sinus of the elbow-shaped curved part is provided at a corner of the curved part, and a root canal boring tool is placed in the elbow-shaped curved part and the perforation, and is screwed to the main body of the tubular body. 1. A device for holding a root canal boring tool in a dental instrument including a vibration transmitting part, the device being held by a fixed nut. 2. An apparatus for holding a root canal boring tool in a dental instrument including a vibration transmitting section according to claim 1, which chamfers the end of the nut that abuts the rod of the root canal boring tool. 3. A device for holding a root canal boring tool within a dental device including a vibration transmitting section according to claim 1 or 2, wherein the dental device is a tartar removal device. 4. The root canal boring tool is of a type that includes a handle;
A device for holding a root canal boring tool within a dental instrument, including the vibration transmitting section according to any one of claims 1 to 3.