JPH0642659Y2 - Impression tray for dental treatment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a dental treatment impression tray, and more particularly to a dental treatment impression tray used together with a conventionally used impression tray.

[Conventional technology and problems]

BACKGROUND ART Conventionally, an impression tray for dental treatment has, for example, as shown in FIG. 1, a stainless tray part (1) having a substantially U-shaped cross section and curved in a substantially U-shape according to a tooth row, and a curved part. It is composed of an attached grip portion (2). This impression tray can be used by filling the tray (1) with a curable substance such as silicone rubber, and then applying it to the patient's dentition and holding it for about 10 minutes. After the curable substance is cured, it is removed from the dentition to complete the impression taking.

However, it is extremely painful to maintain a state in which a large metal tray is covered with teeth for about 10 minutes, especially for infants and women, there is a great deal of pain and strong resistance. . In addition, many people complain of nausea such as nausea just by inserting the tray into the mouth in order to cover it on the teeth. Silicone rubber is expensive. On the other hand, if an alginic acid impression material or the like is used as the curable substance, the time for withstanding the above pain is somewhat reduced because it is inexpensive and the curing time is short, but there is a problem that it is inaccurate and the treatment can be inconvenient. . Thus, the appearance of an impression tray that is inexpensive, has less pain and discomfort, and is highly accurate is awaited.

[Means for solving problems]

The present inventor has completed the present invention as a result of earnest research in order to solve the above problems in view of such circumstances.

That is, the present invention comprises a bottom surface and side walls erected on both sides thereof, and an engaging portion is provided on the outside of the side wall, and has a substantially concave cross section and is curved into a substantially U-shape in accordance with a tooth row. The content is an impression tray for dental treatment which can be housed in an impression tray composed of a tray part and a grip part.

The present invention will be described with reference to the drawings. FIG. 2 is a schematic perspective view of the tray of the present invention.

In the figure, the tray of the present invention comprises a bottom surface (11) and side walls (12a) and (12b) standing on both sides of the bottom surface, and extends substantially horizontally outside the side walls (12a) and (12b). Engagement part (13
a) and (13b) are extended. Both sidewalls (12a), (12
The width and height in b) are sufficient to fill the dentition with a curable substance and make an impression, and the width is about 1.
It is preferable that the height is approximately 5 cm and the height is approximately 1 cm.
a) and (13b) are widths that can be removed by embedding in a curable substance of a conventional impression tray (hereinafter referred to as a parent tray) from the teeth together with the parent tray, for example, 1 to 3 mm.
The width of both ends of the engaging portion is preferably a width that can be stored in the parent tray, that is, a width slightly smaller than the width of the parent tray. Also the bottom surface (11) and both side walls (12a), (12b)
The length is enough to make impression of the specific affected area of the teeth and can be stored in the parent tray, and is usually about 1.5 to 3
About cm is preferable.

The engaging portion is not particularly limited as long as it has a function of engaging and embedding in the curable substance in the parent tray as described above.
For example, the outer surface of the side wall has an uneven shape, a wavy shape,
It is provided by providing protrusions regularly or randomly,
These are used alone or in combination. Particularly, from the viewpoint of ease of setting and stability when combined with the parent tray, it is desirable to provide at least a protrusion extending substantially horizontally near the bottom surface. It is also possible to increase the physical engagement force by making the surface of the projections uneven, corrugated, or by forming through holes.

3 and 4 are schematic perspective views showing other embodiments of the tray used in the present invention. In FIG. 3, side walls are provided to allow storage in a slightly curved portion of the parent tray. Through holes (14) are formed in the engaging portions (13a), (13b) to slightly bend (12a), (12b) and increase the engaging force, and in FIG. 4, side walls are formed. (12a), (12
Engagement part (13
a) and (13b) are provided. Needless to say, it is convenient to provide a plurality of trays that can be stored in any curved portion of the parent tray.

FIG. 5 is a cross-sectional view showing another embodiment of the tray of the present invention, wherein the side walls (12a), (12b) have wavy engaging portions (13a),
(13b) is provided.

The method of using the impression tray of the present invention will be described with reference to FIGS. 6 and 7. First, the tray (P ₁ ) of the present invention is filled with a curable substance (16), for example, the affected area (claw tooth) (15). ) On top and cure. Then, the parent tray (P ₂ ) is filled with the curable substance (16), and the entire dentition is covered from above the tray (P ₁ ) of the present invention, and after the curable substance is cured, both trays (P 1) Remove ₁ ) and (P ₂ ) together to complete the impression.

As the material of the impression tray of the present invention, various synthetic resins can be preferably used in addition to metal such as stainless steel.

[Action / effect]

As described above, the impression tray of the present invention takes an impression near the affected area first with the tray of the present invention and then the impression of the entire dentition with the parent tray.For example, the tray of the present invention is literally small and is left in the mouth for a long time. However, since there is no discomfort, curable substances such as thiochol rubber and silicone rubber with high accuracy are used even if the curing time is long and expensive, while the parent tray causes discomfort and pain as described above. However, as a result, the alginic acid impression material etc., which has a short curing time, is used. As a result, the time in the mouth of the parent tray is very short, so there is less pain and discomfort (shorter), and thiochol rubber near the affected area. Since it uses silicone rubber and silicone rubber, it is highly accurate, and the amount of expensive thiole rubber used is only the size of the tray of the present invention, so the cost is greatly reduced. That.

As described above, according to the present invention, it is possible to obtain an impression that is inexpensive, has less pain and discomfort, and has high precision, and its usefulness is great.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a conventional impression tray, FIGS. 2 to 4 are schematic perspective views showing an embodiment of the impression tray of the present invention, and FIG. 5 is another embodiment of the impression tray of the present invention. FIG. 6 is a schematic sectional view showing a mode, FIG. 6 and FIG. 7 show a usage state of the impression tray of the present invention, and FIG.
The drawing is a sectional view taken along the line AA in FIG. 1 ... Tray part, 2 ... grip part 11 ... bottom surface, 12a, 12b ... side wall 13a, 13b ... engaging part 14 ... through hole, 15 ... affected part (crusted tooth) 16 ... curable substance

Claims (3)

[Scope of utility model registration request] 1. A bottom surface and side walls standing upright on both sides of the bottom surface and engaging portions provided on the outside of the side wall. The section has a substantially concave shape and is curved in a substantially U-shape to fit a tooth row. An impression tray for dental treatment which can be housed in an impression tray composed of a tray part and a grip part. 2. The impression tray according to claim 1, wherein the engaging portion is a projection provided substantially horizontally near the bottom surface of the concave shape. 3. The impression tray according to claim 2, wherein the surface of the protrusion has an uneven shape.