JP2020146149A - Periodontal pocket depth measuring device - Google Patents

Abstract

To provide a periodontal pocket depth measuring device capable of correctly measuring a depth of a periodontal pocket even when a dental calculus is adhered to a tooth root.SOLUTION: A periodontal pocket depth measuring device 1 for measuring a depth of a periodontal pocket comprises: a main body part 10; a plate-shaped probe 20 being held to the main body part and protruding from one end of the main body part; a lip 30 protruding to a same direction to a protrusion direction of a probe from one end of the main body part, being held to the main body part in a movable manner in a direction being parallel to the protrusion direction and being provided in the surrounding of the probe; and a detection part for detecting a movement amount of the lip opposite to the protrusion direction, as a depth of the periodontal pocket. The probe has a hollow part 221 on a tip end of the protrusion direction and on a center of a plate width direction.SELECTED DRAWING: Figure 3

Description

The present invention relates to a periodontal pocket depth measuring device that measures the depth of a periodontal pocket.

Recent studies have revealed that periodontal disease is an infectious disease and is closely related to lifestyle-related diseases such as diabetes and cerebrovascular disease. Since periodontal disease progresses asymptomatically until it becomes severe, it is often too late when subjective symptoms such as swelling and bleeding gums, bad breath, or loose teeth appear.

In such a situation, conventionally, the depth of the periodontal pocket is measured by a periodontal pocket depth measuring device to examine the presence or absence of periodontal disease. In such a periodontal pocket depth measuring device, the tip of the probe is inserted into the periodontal pocket to measure the depth of the periodontal pocket (for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2016-129595

However, in the conventional periodontal pocket depth measuring device, when the tip of the probe touches the upper edge of tartar or the like adhering to the root, it is difficult for the probe to enter deeper than the upper edge of the tartar. The position of the upper edge may be mistaken for the bottom of the periodontal pocket. In such a case, there is a problem that the measurement of the depth of the periodontal pocket becomes inaccurate.

An object of the present invention is to provide a periodontal pocket depth measuring device capable of accurately measuring the depth of a periodontal pocket even when tartar or the like is attached to the tooth root.

The periodontal pocket depth measuring device according to the present invention is a periodontal pocket depth measuring device that measures the depth of a periodontal pocket, and is held by the main body and the main body and protrudes from one end of the main body. The plate-shaped probe and the one end of the main body project from the one end in the same direction as the projecting direction of the probe, and are movably held in the main body in a direction parallel to the projecting direction, and are provided around the probe. The probe has a lip to be formed and a detection unit that detects the amount of movement of the lip in the direction opposite to the protruding direction as the depth, and the probe has a recessed portion at the tip in the protruding direction and in the center in the plate width direction. Be prepared.

When the probe and lip are inserted into the oral cavity and the tip of the probe in the protruding direction is inserted into the periodontal pocket for which the depth is to be measured, the lip comes into contact with the gingiva and moves in the direction opposite to the protruding direction, and at the root of the tooth. When the attached tartar or the like enters the recessed portion of the probe, the probe can get over the tartar or the like and be inserted further into the periodontal pocket.

According to the present invention, the depth of the periodontal pocket can be accurately measured even when tartar or the like is attached to the tooth root.

It is a perspective view of the periodontal pocket depth measuring apparatus which concerns on embodiment of this invention. It is a side view of the periodontal pocket depth measuring apparatus which concerns on embodiment of this invention. It is an enlarged perspective view of a part of the periodontal pocket depth measuring apparatus which concerns on embodiment of this invention. It is a side view of the probe of the periodontal pocket depth measuring apparatus which concerns on embodiment of this invention. It is a side view of the insertion part of the probe of the periodontal pocket depth measuring apparatus which concerns on embodiment of this invention. It is a bottom view of the insertion part of the probe of the periodontal pocket depth measuring apparatus which concerns on embodiment of this invention. It is a schematic diagram of the state which the probe of the periodontal pocket depth measuring apparatus which concerns on embodiment of this invention is inserted into a periodontal pocket. It is a schematic diagram of the state in which the probe and the lip of the periodontal pocket depth measuring device according to the embodiment of the present invention are inserted into the oral cavity.

Hereinafter, the periodontal pocket depth measuring device according to the embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In the figure, the x-axis, y-axis, and z-axis form a three-axis Cartesian coordinate system, with the positive direction of the y-axis being the front direction, the negative direction of the y-axis being the rear direction, the x-axis direction being the left-right direction, and the z-axis. The positive direction will be described as an upward direction, and the negative direction of the z-axis will be described as a downward direction.

<Configuration of periodontal pocket depth measuring device>
The periodontal pocket depth measuring device 1 according to the embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 6.

The periodontal pocket depth measuring device 1 has a main body portion 10, a probe 20, and a lip 30.

The main body portion 10 is formed by engaging the case and the cover with each other, and is substantially L-shaped when viewed from the side. Note that FIG. 2 shows a state in which the case of the main body 10 is removed.

The main body 10 includes a detection unit 11 for detecting the amount of movement of the lip 30 and a spring member 12 for urging the probe 20 forward.

The detection unit 11 changes the resistance value of the movement amount of the lip 30 with respect to the position of the lip 30 before being inserted into the periodontal pocket or the photosensor that detects the slit row provided in the lip 30 as the movement amount of the lip 30. It is a resistance sensor or the like that detects as. The detection unit 11 wirelessly transmits the detection result of the movement amount of the lip 30 to an external personal computer from a communication unit (not shown), or records it in a memory such as a USB memory that can be attached to the main body 10.

The probe 20 has a plate shape and is made of paper. The probe 20 is held so as not to move in the vertical direction with respect to the main body 10, and protrudes from the protruding end face 13 which is one end of the main body 10. Specifically, the probe 20 includes a holding portion 21, an inserting portion 22, and a recess 23.

The holding portion 21 is held by the main body portion 10 and includes an engaging recess 211 that engages with the spring member 12 provided in the main body portion 10.

The insertion portion 22 is provided at the tip in the protruding direction (downward direction), and as shown in FIG. 6, both the left and right sides are inclined surfaces that are inclined so that the plate thickness becomes thinner toward the tip in the protruding direction. It has a double-edged shape. The insertion portion 22 is formed to have a predetermined length upward from the tip in the protruding direction and is inserted into the periodontal pocket. The insertion portion 22 includes a recess portion 221 that is recessed in a semicircular shape from the tip in the protruding direction toward the main body portion 10 at the center in the plate width direction (front-rear direction). The tip of the insertion portion 22 in the projecting direction has a predetermined angle with respect to the plate width direction and extends along the plate width direction. The insertion portion 22 is provided with an inclined surface 222 that is inclined at the tip in the protruding direction so that the plate thickness is reduced toward the protruding direction.

The recess 23 is provided between the insertion portion 22 and the holding portion 21, and is formed by denting the front end portion, which is one end portion in the plate width direction, inward and rearward.

The lip 30 is urged downward in the protruding direction by an elastic member (not shown), and its downward movement is restricted by the protruding end face portion 12, and is formed of paper. The lip 30 protrudes from the protruding end surface portion 13 of the main body portion 10 in the same direction as the protruding direction of the probe 20, is movably held by the main body portion 10 in a direction parallel to the protruding direction, and the probe 20 is around the probe 20. It is provided so as not to come into contact with. The lip 30 is provided with a plate-shaped portion 31 which is a tip in the protruding direction and intersects the protruding direction around the insertion portion 22.

The plate-shaped portion 31 is provided with an insertion hole 311 through which the probe 20 can be inserted. The plate-shaped portion 31 includes a protruding portion 312 whose front end, which is one end in the plate width direction, projects forward in the plate width direction and outward in a convex shape. The tip surface of the plate-shaped portion 31 in the protruding direction is substantially the same position in the vertical direction as the tip surface of the insertion portion 22 in the protruding direction.

<Operation of periodontal pocket depth measuring device>
The operation of the periodontal pocket depth measuring device 1 according to the embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 8. In FIG. 8, the tooth 102 is located on the depth side of the paper surface with respect to the tooth 101.

The periodontal pocket depth measuring device 1 becomes usable when a power switch (not shown) is turned on.

First, the insertion portion 22 of the probe 20 and the plate-shaped portion 31 of the lip 30 are inserted close to the periodontal pocket where the depth of the oral cavity is to be measured.

Subsequently, when the bottom surface of the plate-shaped portion 31 comes into contact with the gingiva, the lip 30 starts moving upward so as to immerse in the main body portion 10 in the opposite direction of the protruding direction, and the insertion portion 22 is placed in the periodontal pocket. Will be inserted. At this time, the lip 30 slides and moves in the direction opposite to the protruding direction regardless of the probe 20 without having a fulcrum, while the probe 20 is provided on the main body 10 by the urging force of the spring member 12. It is rotatable around the fulcrum (not shown) on the yz plane.

Further, by providing the protruding portion 312 on the plate-shaped portion 31, as shown in FIG. 7, the protruding portion 312 enters between the tooth 101 and the tooth 102 adjacent to each other, and the probe 20 is inserted into the tooth 101 adjacent to each other. It can be as close as possible to the contact portion S1 with the tooth 102. As a result, the depth of the periodontal pocket immediately below the contact portion S1 between the tooth 101 and the tooth 102 adjacent to each other can be measured more accurately.

Further, by providing the probe 20 with the recess 23, as shown in FIG. 8, the contact portion S1 between the tooth 101 and the tooth 102 adjacent to each other can be avoided by the recess 23, so that the probe 20 can be prevented from the periodontal pocket. Can be inserted in a more upright state and in a state where the depth of the periodontal pocket can be appropriately measured, so that the depth of the periodontal pocket immediately below the contact portion S1 between the tooth 101 and the tooth 102 adjacent to each other can be more accurately measured. Can be measured.

Further, when tartar or the like is attached to the tooth root, the tip of the insertion portion 22 in the protruding direction abuts on the upper edge of the tartar or the like and temporarily stops. However, by providing the insertion portion 22 with a recess portion 221 Tartar or the like enters the recessed portion 221 so that the insertion portion 22 can easily get over the tartar or the like. As a result, the depth of the periodontal pocket can be accurately measured even when tartar or the like is attached to the tooth root. In particular, by forming the recessed portion 221 in a semicircular shape, the tartar or the like can be smoothly guided to the recessed portion 221 so that the insertion portion 22 can get over the tartar or the like more easily.

Further, by providing the inclined surface 222 at the tip of the inserting portion 22 in the protruding direction, even if the inserting portion 22 abuts on the upper edge of the tartar, the inserted portion 22 is moved to the left and right, so that the inclined surface 222 is further deepened in the tartar. It is possible to guide the tartar into the recessed portion 221. As a result, the insertion portion 22 can easily get over the tartar.

Further, by providing the inclined surface 222 at the tip of the insertion portion 22 in the protruding direction, it is possible to prevent the inside of the oral cavity such as the gingiva or the mucous membrane from being damaged by the tip of the insertion portion 22 in the protruding direction.

Further, by extending the tip of the insertion portion 22 in the protruding direction at an angle with respect to the plate width direction along the plate width direction, the operator of the periodontal pocket depth measuring device 1 moves the insertion portion 22 back and forth. The probe 20 can be smoothly inserted into the periodontal pocket without being caught in the gingiva or tartar.

Further, by extending the tip of the insertion portion 22 in the protruding direction at an angle with respect to the plate width direction along the plate width direction, the tip of the insertion portion 22 in the protruding direction of the oral cavity such as the gingiva or mucous membrane can be extended. It is possible to prevent the inside from being damaged.

When the tip of the insertion portion 22 in the protruding direction abuts on the inner bottom surface of the periodontal pocket, the probe 20 cannot be further inserted into the periodontal pocket, and the detection unit 11 detects the amount of movement of the lip 30 so far. The depth of the periodontal pocket can be analyzed by detecting and wirelessly transmitting the detection result to an external personal computer or the like (not shown) or recording the detection result in a memory such as a USB memory (not shown).

When the measurement of the depth of the periodontal pocket is completed and the insertion portion 22 is pulled out from the periodontal pocket, the lip 30 returns to the initial position shown in FIGS. 1 and 2 by the urging force of the elastic member (not shown).

Finally, by turning off the power switch of the periodontal pocket depth measuring device 1, the measurement of the periodontal pocket depth is completed.

By the way, in the conventional case where the tip shape in the protruding direction of the probe is sharpened, the tip in the protruding direction of the probe pierces the tartar or the like adhering to the tooth root, so that it cannot be inserted further into the periodontal pocket. Become. On the other hand, in the present embodiment, by making the insertion portion 22 of the probe 20 into a plate shape, it is possible to prevent the insertion portion 22 from sticking into tartar or the like, and the insertion portion 22 can be inserted further inward. It can be prevented from disappearing.

As described above, according to the present embodiment, the probe 20 is provided with the recessed portion 221 at the tip in the protruding direction and in the center in the plate width direction, so that even if tartar or the like is attached to the tooth root, the periodontal periodontal periodonum The depth of the pocket can be measured accurately.

Further, according to the present embodiment, by forming the probe 20 and the lip 30 from paper, they can be made disposable and hygienic.

The present invention is not limited to the above-described embodiment in terms of the type, arrangement, number, etc. of the members, and the constituent elements thereof are appropriately replaced with those having the same action and effect, as long as the gist of the invention is not deviated. Of course, it can be changed as appropriate.

Specifically, in the above embodiment, the recessed portion 221 is formed into a semicircular shape, but the present invention is not limited to this, and the recessed portion may be formed into a triangle.

Further, in the above embodiment, the insertion portion 22 is formed into a rectangular shape, but the present invention is not limited to this, and the insertion portion is curved along the front-rear direction so that the center in the front-rear direction becomes a convex shape in the front-rear direction when viewed from the bottom surface. You may let me. As a result, it is possible to prevent the tip of the insertion portion 22 in the protruding direction from damaging the inside of the oral cavity such as the gingiva or the mucous membrane.

Further, in the above embodiment, the probe 20 and the lip 30 are formed of paper, but the present invention is not limited to this, and the probe 20 and the lip 30 may be formed of a material other than paper such as plastic.

Further, in the above embodiment, the inclined surface 222 is provided only on one surface of the insertion portion 22 in the left-right direction, but the inclined surface 222 may be provided on both surfaces of the insertion portion 22 in the left-right direction.

The periodontal pocket depth measuring device according to the present invention is suitable for measuring the depth of the periodontal pocket.

1 Periodontal pocket depth measuring device 10 Main body 11 Detection 12 Spring member 13 Protruding end face 20 Probe 21 Holding 22 Insertion 23 Recess 30 Lip 31 Plate-shaped 32 Rear wall 33 Recess 101 Tooth 102 Tooth 211 Engagement recess 221 Recessed part 222 Inclined surface 311 Insertion hole 312 Protruding part S1 Contact part

Claims (7)

A periodontal pocket depth measuring device that measures the depth of the periodontal pocket.
With the main body
A plate-shaped probe that is held by the main body and protrudes from one end of the main body.
A lip that protrudes from one end of the main body portion in the same direction as the protruding direction of the probe, is movably held by the main body portion in a direction parallel to the protruding direction, and is provided around the probe.
A detection unit that detects the amount of movement of the lip in the direction opposite to the protruding direction as the depth.
Have,
The probe
A recess is provided at the tip in the protruding direction and at the center in the plate width direction.
A periodontal pocket depth measuring device characterized by this. The recessed portion
Semi-circular,
The periodontal pocket depth measuring device according to claim 1, wherein the periodontal pocket depth measuring device is characterized. The probe
A holding portion held by the main body portion, an insertion portion provided at the tip in the protruding direction and inserted into the periodontal pocket, and provided between the insertion portion and the holding portion and in the plate width direction. The periodontal pocket depth measuring device according to claim 1 or 2, further comprising a recess in which one end is recessed inward. The lip
A plate-shaped portion intersecting the protruding direction is provided around the tip of the probe.
The plate-shaped part
The probe is provided with an insertion hole through which the probe can be inserted, and one end in the plate width direction projects convexly in the plate width direction and outward.
The periodontal pocket depth measuring device according to any one of claims 1 to 3, wherein the periodontal pocket depth measuring device is characterized. The probe
The tip in the protruding direction has a predetermined angle with respect to the plate width direction and extends along the plate width direction.
The periodontal pocket depth measuring device according to any one of claims 1 to 4, wherein the periodontal pocket depth measuring device is characterized. The probe
The tip in the protruding direction is provided with an inclined surface that inclines so that the plate thickness decreases toward the protruding direction.
The periodontal pocket depth measuring device according to any one of claims 1 to 4, wherein the periodontal pocket depth measuring device is characterized. The probe and the lip
Formed by paper,
The periodontal pocket depth measuring device according to any one of claims 1 to 6, wherein the periodontal pocket depth measuring device is characterized.

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