JPH06237942A - Grindstone for dental ploque eliminating curette and grindstone base - Google Patents

Abstract

PURPOSE:To obtain a grindstone and a grindstone base by which an edge of a hook part of a curette for eliminating a dental ploque is easily grindable. CONSTITUTION:The grindstone 10 is provided with the grinding face having a curved surface part 14b whose curvature becomes gradually larger from a flat part 14. When the side face of a hook part 2 of a curette is pressed against the grinding face 14 and drawn in the direction as indicated with an arrow 15, a contact position of the hook part 2 and the grindstone moves and the whole edge is ground. In the grindstone base on which this grindstone 10 is placed, a guide in the same direction the arrow 15 is provided so that a work is executed easily.

Description

Detailed Description of the Invention

[0001]

The present invention relates to the prevention of periodontal disease,
The present invention relates to a grinding wheel for a dental curette that removes plaque attached to a tooth root.

[0002]

2. Description of the Related Art The curette has a hook portion b provided on both sides of a handle a as shown in FIG.
Edges c are formed on both sides of the inner surface of, and the plaque is scraped off by the edges c. During use, the curette used for one patient has to sharpen the edge c each time, because the edge c is worn and rounded due to friction with the plaque and the tooth surface, and the sharpness is reduced.

A standard method of sharpening the conventional edge c is shown in FIG.
As shown in FIG. 2, the curette is held with the left hand with the edge c side facing up, and the grindstone d is held with the right hand and abutted against the edge c and slid from top to bottom.

However, in the method of sharpening shown in FIG. 12, it is difficult to sharpen accurately because both the curette side and the grindstone side are unstable, and the curette has separate front teeth, molars, and the distal side (back side) of the teeth. ), Mesial side (front side), lingual side, buccal side, etc. In many cases, the uncut portion remains and cannot be cut immediately, and considerable skill is required to form a sharp edge over the entire length of the edge c.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a means by which the entire edge can be easily sharpened.

[0006]

[Means for Solving the Problems] The above-mentioned problems are set forth in claim 1.
The problem can be solved by using a grindstone characterized by having a grinding surface having a curved surface whose curvature gradually increases from the top surface to the lower part of the side surface as described in 1.

Further, the grindstone, as described in claim 2, a holding hole into which the lower part of the grindstone can be fitted, and a guide for widening a space on the front side with respect to a side surface of the grindstone on the grinding surface side, This can be solved more effectively by attaching to a grindstone stand characterized by including a holding groove that can be fitted with the side surface opposite to the polishing surface facing downward.

[0008]

[Operation] When using only the above-mentioned grindstone, the inside of the hook of the curette is turned to the front, and one side of the hook is applied to the grinding surface of the grindstone. The entire edge or the edge on the base side comes into contact with the grindstone, the contact area moves to the tip side as it passes through the curved surface, and the whole is ground.

When this grindstone is fitted into the holding hole of the grindstone base, the guide provided on the grindstone base serves as an index in the pulling direction of the curette, so that the grindstone can be sharpened accurately. Further, when a grindstone is set up and fitted into the holding groove, it is possible to grind a curette having a curved surface or a vertically elongated hook portion.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially enlarged perspective view of the curette 1, and 2 is a hook portion. On both sides of the inner side surface 3 of the hook portion 2, the base portion 4,
Edges 7 and 8 extending from 5 to the tip 6 are provided. Then, the top 9 side is pushed into the gingiva along the tooth surface and the plaque is scraped off by the edge 7 or 8.

One of the grindstones for sharpening the edges 7 and 8 is shown in FIG. In the figure, a grindstone 10 has a rectangular shape in plan view, a long side length of about 100 mm, a bottom portion 11, side portions 12 and 13, and a grinding surface 14 on an upper surface. The grinding surface 14 is composed of a flat portion 14a parallel to the bottom portion 11 and a curved surface portion 14b whose curvature gradually increases. As shown in FIG. 2, the grindstone 10 is placed on the work table with the bottom portion 11 facing down, and the left hand 2a of the hook portion 2 is placed on the flat portion 14a by pressing the proper position of the grindstone 10 with the left hand to keep it stationary. The edge 7 is sharpened by pulling in the direction of arrow 15. Initially, a large force is applied to the vicinity of the base portion 4 of the edge 7, so that the base portion 4 side is ground more.
Side floats, the center of the grinding area moves to the tip 6 side, and the left side surface 2
Not only when a is flat, but also when it is convexly curved, it is possible to contact the grinding surface 14 and sharpen over the entire length of the edge 7.

When the left side surface 2a is curved concavely,
As shown in FIG. 3, the whetstone 10 is erected, the edge 7 is brought into contact with the curved surface portion 14b, and the hook portion 2 is pulled in the arrow 16 direction.
The entire length of the edge 7 contacts the grinding surface 14 and is ground.

When the edge 8 of the right side surface 2b of the hook portion 2 is sharpened, it can be sharpened by pulling in the direction of the arrow 17 with the curved surface portion 14b on the left side as shown in FIG. If the right side surface is concave or there is a curved portion 18 protruding to the left side as shown in FIG. 5, stand the grindstone 10 as shown in FIG.
It can be sharpened by pulling it as shown by arrow 19.

A grindstone 20 shown in FIG. 7 has a semi-cylindrical shape in which the two grindstones 10 are combined together.
The grinding surfaces 21 and 22 having the same shape as that of No. 4 are symmetrically provided. When this grindstone 20 is used, if the curette 1 is pulled in the direction of the slanting arrow 23 or 24 similarly to the grindstone 10, the edge or 8 is brought into contact with the grinding surfaces 21 and 22 and sharpened over the entire length.

Next, FIGS. 8 to 10 show a grindstone base 25 used when the grindstone 10 is sharpened in the same manner as in FIG. 2 or FIG. 3, and the bottom 11 side of the grindstone 10 is fitted into the grindstone mount 25. The holding hole 26 is provided with a matching holding hole 26, and the holding hole 2 and the guide line 27 or the side surface 28 serving as a guide in the direction of pulling the curette.
No. 6 has an inclination angle of α ° when the front side is expanded. The inclination angle α depends on the curvature of the grinding surface 14,
For example, it is set to 5 °. Then, on one side of the holding hole 26,
A holding groove 29 is provided so as to overlap with this, and the side portion 13 side is fitted into the holding groove 29 when the grindstone 10 is used upright.

If this grindstone base 25 is used, the curette 1
2 can be sharpened by moving the hand holding the hand in the same direction as the guideline 27 or the side face 28, and compared with the case where the grindstone 10 is used alone, the arrow 15 in FIG. 2 or the arrow 1 in FIG.
It can be easily moved in the same direction as 6 and the grinding stone stand 2
Since the grindstone 10 is gripped via 5, it is possible to grip at a position far from the hook portion 2 of the curette 1, which is safe and can be gripped reliably.

The grindstone base used in the state of FIG. 4 and FIG. 6 is also symmetrical with the grindstone base 25 with the left side of the grindstone base as a reference, and the holding hole and the holding groove are formed at an angle such that the front side expands. It can be made by providing.

[0018]

As is apparent from the above description, since the grindstone of the present invention has the grinding surface having the curved surface with the gradually increasing curvature, the edge of the hook portion of the curette is applied to the grinding surface to be inclined. By pulling, the edge slides on the grinding surface over the entire length, and the edge is effectively ground.

Further, since the whetstone base of the present invention is provided with the guide line or the guide portion consisting of the side face in the direction in which the curette should be moved, the curette can be moved correctly and the whetstone can be held safely and securely. Play.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a curette.

FIG. 2 is a perspective view of a first usage example of an embodiment of a grindstone.

FIG. 3 is a perspective view of a second use example.

FIG. 4 is a perspective view of a third use example.

FIG. 5 is a perspective view of a curved curette.

FIG. 6 is a perspective view of a fourth usage example.

FIG. 7 is a perspective view of another embodiment of the grindstone.

FIG. 8 is a plan view of the whetstone base.

[Figure 9] Front view of the whetstone

FIG. 10 is a perspective view of a grindstone combined with a grindstone base.

FIG. 11: Side view of curette

FIG. 12 is an explanatory diagram of a conventional sharpening method.

[Explanation of symbols]

 1 Curette 2 Hook part 7,8 Edge 10 Grinding wheel 14,21,22 Grinding surface 14a Flat part 14b Curved part 15,16,17,19,23,24 Grinding direction arrow 25 Grindstone base 27 Holding hole 29 Holding groove

Claims (2)

[Claims] 1. A grinding surface having a curved surface whose curvature gradually increases from the top surface to the lower part of the side surface,
Whetstone for plaque removal curette. 2. A holding hole into which the lower part of the grindstone can be fitted,
2. A guide having a front side gap widened with respect to a side surface of the grindstone on the grinding surface side, and a holding groove capable of being fitted with the side surface on the side opposite to the polishing surface facing downward.
Grindstone base for the plaque removal curette.