JP6397541B1 - Oral measuring device - Google Patents

Abstract

An oral measuring device capable of easily measuring a distance between two parts in an oral cavity. A measuring instrument (1) is used for measuring a distance between two parts in an oral cavity, and includes a measuring plate (2) and a handle (4) connected to the measuring plate (2). The measuring plate 2 reads the position of the abutting edge 21 that abuts on the first part in the oral cavity and the position of the second part in the oral cavity when the abutting edge 21 abuts on the first part in the oral cavity. And a scale portion 22 having a plurality of scale lines 22a, 22b, 22c. [Selection] Figure 3

Description

The present invention relates to a measuring instrument for the oral cavity, and particularly to a technique for measuring the distance between two parts in the oral cavity.

  An occlusal floor is produced in the process of producing a complete denture or the like to be attached to an edentulous patient. The occlusal floor is a temporary denture base in which a wax bank (occlusal bank) is provided on the foundation floor.

  In producing the occlusal floor, first, the upper and lower jaw base floors are produced based on a working model simulating the shape of the oral mucosa of the patient. Next, an approximately horseshoe-shaped wax bank (paraffin wax) having a standard size based on an anatomical average value or the like is bonded to each of the upper and lower jaw base floors. In this way, a standard upper and lower jaw occlusal floor is produced.

  The prepared standard occlusal floor is attached to the upper and lower ridges in the patient's mouth in the clinic, and the height of occlusion, the size of the dental arch, the position of the anterior teeth, etc. are adjusted, and the upper and lower jaws are adjusted. The positional relationship is recorded. (For example, refer to [0003] of Patent Document 1).

  In this case, there are not so many patients who can apply the standard occlusal floor as it is, and in most cases, the wax is adjusted to suit individual patients by shaving or embedding wax.

  For example, in general, the position of the front teeth incisor corresponding to the maxillary ridge (the position corresponding to the tip of the maxillary central incisor) is determined based on the position of the lower lip of the patient at rest, and accordingly, The height of the front teeth of the maxillary wax bank is adjusted. If the difference between the position of the lower lip of the patient's upper lip and the height of the anterior teeth of the standard maxillary ridge is large, it takes a lot of time to adjust the ridge in the clinic. The burden also increases.

On the other hand, in order to produce a working model used for the production of the foundation floor, an impression of the oral mucosa of the patient is taken in the clinic. Therefore, for example, if the step between the alveolar crest (maxillary ridge crest) and the lower lip of the upper lip in the patient's maxillary anterior teeth can be easily measured, Can be reflected in the production. Thereby, the adjustment work of the wax bank in a clinic can be reduced, and a burden on the patient can be reduced.

JP 2009-106686 A

This invention is made | formed based on such a viewpoint, and it aims at providing the measuring tool for oral cavity which can measure the distance between two parts in an oral cavity easily.

  An oral measuring instrument according to the present invention is an oral measuring instrument that measures a distance between two parts in an oral cavity, and includes a measuring plate and a handle connected to the measuring plate, and the measuring plate includes an oral cavity. An abutting edge that abuts on the first part of the inside, and a plurality of scale lines for reading the position of the second part in the oral cavity in a state where the abutting edge abuts on the first part of the oral cavity And a scale part.

The features of the present invention can be broadly shown as described above, but the configuration and contents thereof, together with the objects and features, will be further clarified by the following disclosure in view of the drawings.

  The oral measuring device according to the first invention of the present application is a measuring device for oral cavity that measures the distance between two parts in the oral cavity, and includes a measuring plate and a handle connected to the measuring plate. Is a plurality of scales for reading the position of the abutting edge that abuts on the first part in the oral cavity and the second part in the oral cavity when the abutting edge abuts on the first part in the oral cavity And a scale portion having a line.

  Therefore, the contact edge of the measurement plate is brought into contact with the first portion in the oral cavity (for example, the alveolar crest of the patient's upper anterior teeth), and in this state, the second portion in the oral cavity (for example, the lower lip of the upper lip) ) Easily measures the distance between the two parts (for example, the level difference between the alveolar crest and the lower lip of the upper front teeth) be able to.

  That is, the distance between two parts in the oral cavity can be easily measured.

  The measuring device for oral cavity according to the second invention of the present application is characterized in that, in the measuring device for oral cavity according to the first invention of the present application, the contact edge is formed in a smooth convex curve shape.

  It is possible to prevent the oral cavity from being inadvertently damaged or painful at the time of measurement by forming the contact edge that contacts the first part in the oral cavity into a smooth convex curve. it can. For this reason, the distance between two parts in the oral cavity can be measured more easily.

  The oral measurement device according to the third invention of the present application is characterized in that, in the oral measurement device according to the second invention of the present application, each graduation line is configured as a curve parallel to the convex curve constituting the contact edge. And

That is, the contact edge and each graduation line constitute a parallel curve that keeps a constant distance from each other. Therefore, it is possible to accurately measure the distance between the first part and the second part in the oral cavity regardless of the position of the abutting edge that contacts the first part in the oral cavity. That is, the distance between two parts in the oral cavity can be measured more easily and accurately.

FIG. 1A is a perspective view showing the configuration of the measuring tool 1, and FIG. 1B is a front view of the measuring tool 1. 2A is a plan view of the measuring tool 1, FIG. 2B is a bottom view of the measuring tool 1, FIG. 2C is a left side view of the measuring tool 1, and FIG. 2D is a right side view of the measuring tool 1. 3A is a partially enlarged view of the vicinity of the measurement plate 2 shown in FIG. 1A, FIG. 3B is an enlarged end view of the cut portion along the line IIIB-IIIB shown in FIG. 2A, and FIG. 3C is a cut along the line IIIC-IIIC shown in FIG. FIG. 3D is an enlarged end view of the cut portion along the line IIID-IIID shown in FIG. 1B. 4A and 4B are drawings for explaining an example of a method of using the measuring tool 1. FIG. 5A is a partially enlarged perspective view of the measuring tool 101 in the vicinity of the measuring plate 102. FIG. 5B is a partially enlarged bottom view in the vicinity of the measurement plate 102.

  First, the measuring tool 1 which is a measuring tool for oral cavity by one Embodiment of this invention is demonstrated.

  FIG. 1A is a perspective view showing the configuration of the measuring tool 1, and FIG. 1B is a front view of the measuring tool 1. 2A is a plan view of the measuring tool 1, FIG. 2B is a bottom view of the measuring tool 1, FIG. 2C is a left side view of the measuring tool 1, and FIG. 2D is a right side view of the measuring tool 1. Note that the rear view of the measuring tool 1 appears symmetrically with the front view, and is therefore omitted.

  As shown in FIG. 1A to FIG. 2D, the measuring tool 1 includes a circular plate-like (disc-like) measuring plate 2 in plan view, and a rod-like handle 4 connected to the measuring plate 2. . The measuring plate 2 and the handle 4 are indirectly connected via a rod-like connecting rod 6.

  3A is a partially enlarged view of the vicinity of the measurement plate 2 shown in FIG. 1A, FIG. 3B is an enlarged end view of the cut portion along the line IIIB-IIIB shown in FIG. 2A, and FIG. 3C is a cut along the line IIIC-IIIC shown in FIG. FIG. 3D is an enlarged end view of the cut portion along the line IIID-IIID shown in FIG. 1B.

  As shown in FIGS. 3A and 3B, the measurement plate 2 includes an abutment edge 21 that abuts on the first part in the oral cavity, and the oral cavity in a state where the abutment edge 21 abuts on the first part in the oral cavity. And a scale portion 22 having a plurality of scale lines 22a, 22b, 22c... For reading the position of the second portion.

  A connecting rod 6 is fixedly coupled to a part of the vicinity of the circular outer periphery of the disk-shaped measuring plate 2 obliquely upward. Of the circular outer periphery of the measurement plate 2, a portion other than the portion where the connecting rod 6 is provided constitutes the contact edge 21. Therefore, the contact edge 21 is formed in an arc shape that is a smooth convex curve in the plan view of the measurement plate 2.

  In this example, the angle occupied by the contact edge 21 in the circular outer periphery 360 degrees of the measurement plate 2 is set to 300 degrees or more, but the angle occupied by the contact edge 21 is not limited to this. . However, the angle occupied by the contact edge 21 is preferably 180 degrees or more, more preferably 210 degrees or more, further preferably 240 degrees or more, and most preferably 270 degrees or more.

  The upper surface (circular substantially plane) of the disk-shaped measuring plate 2 constitutes the scale portion 22. Each scale line 22 a, 22 b, 22 c... Constituting the scale part 22 is configured as a curve parallel to the arc constituting the contact edge 21. Therefore, these scale lines 22 a, 22 b, 22 c... Have the same center as the contact edge 21, and constitute a concentric arc group from the contact edge 21 toward the center 23 of the scale portion 22.

  In this way, the contact edge 21 is formed in an arc shape, and the graduation lines 22a, 22b, 22c... Are formed as concentric arc groups from the contact edge 21 toward the center 23 of the scale portion 22, and By setting the angle occupied by the contact edge 21 to be larger (preferably 180 degrees or more) in the circular outer periphery, the measurement target position (up and down, left and right) in the patient's mouth, the position / posture of the measurer with respect to the patient, Regardless of the measurer's dominant arm or the like, the distance between the two parts in the oral cavity can be measured easily and accurately.

  The scale lines 22a, 22b, 22c... Are provided at the same interval (1 mm interval in this example). A reference index 24 for facilitating reading of the scale is provided at predetermined intervals (in this example, 5 mm intervals) of the scale lines 22a, 22b, 22c. In this example, among the scale lines 22a, 22b, 22c..., The scale lines arranged at intervals of 5 mm are distinguishable from other scale lines (in this example, the lines are compared to other scale lines). The reference index 24 is used by increasing the width.

  The scale portion 22 is also provided with a numerical mark 25 indicating a numerical value corresponding to the scale line. In this example, a numerical mark 25 represented by a numeral “5” is provided in the vicinity of the reference index 24 indicating 5 mm. In this example, the numerical mark 25 is provided in a fan-shaped region 26 that extends from the center 23 of the scale portion 22 to the portion to which the connecting rod 6 is coupled. Scale lines 22a, 22b, 22c... Are not formed in the fan-shaped region 26. An outer peripheral portion of the fan-shaped region 26 corresponds to a portion of the outer periphery of the measurement plate 2 that does not constitute the contact edge 21.

  The scale portion 22 is further provided with a normal index. The normal index indicates the normal direction of the contact edge 21 and each scale line 22a, 22b, 22c..., And is used to facilitate reading of the scale.

  In this example, the scale portion 22 is divided into quadrants centered on the center 23 by a straight line including a bisector of the fan-shaped region 26 passing through the center 23 of the scale portion 22 and a straight line orthogonal thereto. doing. Then, the fan-shaped region 26 and the three dividing lines 27 corresponding to the quadrant of the scale part 22 are used as normal indexes.

  Various indices in the scale part 22, that is, the scale lines 22a, 22b, 22c..., The reference index 24, the numerical mark 25, and the dividing line 27 are all engraved from the surface of the scale part 22, The display mode of the index is not limited to this. For example, a part or all of these indicators can be displayed by printing or sticking with no harm to the human body. However, when it is not disposable, it is preferable that the display is resistant to disinfection.

  In this example, the radius of the disk-shaped measuring plate 2 is 10 mm (diameter is 20 mm), but the radius of the measuring plate is not particularly limited. However, when performing mm-based measurement, the radius of the measurement plate 2 is preferably a multiple of 5 mm, and more preferably a multiple of 10 mm. This is due to the following reason.

  In the measuring instrument 1 shown in FIG. 3A, when the measurement distance (distance between two parts in the oral cavity) exceeds the radius of the measurement plate 2, from the contact edge 21 that contacts the first part in the oral cavity to the center 23. (Ie, the radius of the measurement plate 2) and the extension of the radius (ie, the diameter including the radius) from the center 23 to the scale line corresponding to the position of the second portion in the oral cavity Although it is necessary to calculate the sum with the distance, if the radius of the measurement plate 2 is a multiple of 5 mm (or a multiple of 10 mm), the distance from the contact edge 21 to the center 23 is a multiple of 5 mm (or 10 mm). This is because the above calculation becomes easy.

  Of course, in the case of measuring other than the mm system (for example, inch system), the radius of the measurement plate 2 is set to a numerical value (for example, 1/4 inch, 1/2) for the unit system so that the above calculation is easy. Inch, 1 inch, etc.) is preferable.

  In this example, the thickness of the measurement plate 2 is 1.5 mm, but the thickness of the measurement plate 2 is not particularly limited. However, it is preferable that the thickness of the measuring plate 2 is a standard thickness of the labial floor wing in the front tooth portion of the denture base. If comprised in this way, it will become easy to examine the state of the lip support at the time of denture mounting | wearing by inserting the measurement board 2 between a jaw ridge and a lip, for example.

  As shown in FIG. 3C, the connecting rod 6 is formed in a substantially cylindrical shape, and as shown in FIG. 3D, the handle 4 is formed in a substantially octagonal column shape. Of course, the shapes of the connecting rod 6 and the handle 4 are as follows. It is not limited to this.

  Further, the connecting rod 6 and the handle 4 are configured so as to be separable and connectable using screws (not shown) or the like, but may be configured so as to be connected so as not to be separable. However, by connecting the connecting rod 6 and the handle 4 so as to be separable and connectable, the handle of a dental tool (such as a dental mirror) that the measurer is familiar with is used as the handle 4 of the measuring tool 1. This is convenient.

  Note that the measurement plate 2 and the handle 4 can be directly connected without using the connecting rod 6. In this case, the measurement plate 2 and the handle 4 may be configured so as to be separable and connectable, or may be configured so that they cannot be separated.

  4A and 4B are drawings for explaining an example of a method of using the measuring tool 1. FIG. 4A is a drawing showing a part of a mid-sagittal section when measuring the step d between the alveolar crest 80 and the lower lip 81 of the upper jaw in the edentulous patient, and FIG. 4B shows the situation. It is the schematic diagram seen from the patient's front.

  As shown in FIG. 4A, the measurement plate 2 is inserted into the patient's mouth, the scale portion 22 is directed in the same direction as the front of the patient, and the contact edge 21 is lightly placed on the alveolar crest 80 at the approximate center of the patient's upper anterior tooth. Hit In this state, as shown in FIG. 4B, the position of the patient's upper lip lower edge 81 on the normal line of the contact edge 21 that is in contact with the alveolar crest 80 is read from the scale line.

  The above-described normal index, that is, the fan-shaped region 26 and the three dividing lines 27 (see FIG. 3A) assists in registering the normal in the portion of the contact edge 21 that is in contact with the alveolar crest 80.

  In the example shown in FIG. 4B, the lower lip 81 of the patient's upper lip on the normal line of the contact edge 21 that is in contact with the alveolar crest 80 is aligned with the seventh scale line inward from the contact edge 21. From this, it can be seen that the level difference d between the alveolar crest 80 and the lower lip 81 of the upper anterior teeth of this patient is 7 mm.

  Incidentally, in the state shown in FIG. 4B, the distance between the alveolar crest 80 and the lower lip upper edge 82 in the upper anterior part of the patient's upper jaw (the actual measurement is not meaningful) exceeds the radius of the measurement plate 2. , 16 mm can be easily read.

  Although stainless steel is used as the material of the measuring tool 1, the material of the measuring tool 1 is not particularly limited. As the material of the measuring tool 1, other metals or synthetic resins that are not harmful to the human body can be used. However, when it is not disposable, it is preferable to use a material that can withstand disinfection. Moreover, a different material can also be used for each member (in this example, the measuring plate 2, the connecting rod 6, and the handle 4) constituting the measuring tool 1.

  Next, a measuring tool 101 which is an oral measuring tool according to another embodiment of the present invention will be described.

  FIG. 5A is a partially enlarged perspective view of the measuring tool 101 in the vicinity of the measuring plate 102. FIG. 5B is a partially enlarged bottom view in the vicinity of the measurement plate 102.

  As shown in FIGS. 5A and 5B, the measurement plate 102 is formed in a substantially oval plate shape in plan view. As shown in FIG. 5B, in the substantially oval outer periphery of the measurement plate 102, the substantially central portions of the upper and lower pair of substantially arcuate portions in the drawing are the contact edges 121.

  As shown in FIG. 5A, the upper surface (obvious flat surface) of the measurement plate 102 constitutes the scale portion 122. Each scale line 122 a, 122 b, 122 c... Constituting the scale part 122 is configured as a straight line parallel to the tangent at the contact edge 121. Therefore, these scale lines 122a, 122b, 122c,... Constitute a parallel straight line group from one contact edge 121 to the other contact edge 121.

  The scale lines 122a, 122b, 122c,... Are provided at the same interval (1 mm interval in this example). A reference index 124 is provided at predetermined intervals (in this example, 5 mm intervals) between the scale lines 122a, 122b, 122c. The scale portion 122 is also provided with a numerical mark 125. In this embodiment, an index corresponding to the normal index (the fan-shaped region 26 and the three dividing lines 27 shown in FIG. 3A) is not provided.

  Further, the connecting rod 106 is coupled obliquely upward to the measurement plate 102. As shown in FIG. 5B, the measurement plate 102 has an attachment shaft 106a provided at the approximate center of the measurement plate 102. As a center, it is coupled so as to be rotatable in the R direction in the figure.

  By configuring in this way, the contact edge 121 is always placed in the oral cavity regardless of the measurement target position (up / down / left / right) in the patient's mouth, the position / posture of the measurer relative to the patient, the dominant hand of the measurer, etc. The position of the second portion in the oral cavity in that state can be read by the scale portion 122.

  The remaining configuration of the measuring tool 101 is the same as that of the measuring tool 1 described above.

Although the present invention has been described above as a preferred embodiment, the terminology has been used for description rather than limitation and departs from the scope and spirit of the present invention. Without departing from the scope of the appended claims. Also, while the above describes only some exemplary embodiments of the present invention in detail, those skilled in the art will recognize the exemplary implementations described above without departing from the novel teachings and advantages of the present invention. It will be readily appreciated that many variations in form are possible. Accordingly, all such modifications are intended to be included within the scope of the present invention.

1: Measuring tool 2: Measuring plate 4: Handle 21: Contact edge 22: Scale part 22a, 22b, 22c ...: Scale line

Claims (3)

An oral measuring device that measures the distance between two parts in the oral cavity,
A plate-like measurement plate inserted into the patient's mouth, and a handle connected to the measurement plate,
The measurement plate is
A contact edge configured by a part of the outer periphery of the measurement plate and contacting the first part in the oral cavity;
A plurality of graduation lines for reading the position of the second part in the oral cavity in a state where the contact edge is in contact with the first part in the oral cavity are configured by a substantially planar surface of the measurement plate. Tick marks,
In the measuring device for oral cavity provided with
The oral measuring device is a measuring device for oral cavity that measures the level difference between the alveolar crest and the lower lip of the upper anterior teeth,
The contact edge is configured to contact the alveolar crest;
The plurality of scale lines are provided for reading the position of the lower lip of the upper lip in a state where the contact edge is in contact with the alveolar crest,
Oral measuring instrument characterized by the above. An oral measuring device that measures the distance between two parts in the oral cavity,
A plate-like measurement plate inserted into the patient's mouth, and a handle connected to the measurement plate,
The measurement plate is
A contact edge configured by a part of the outer periphery of the measurement plate and contacting the first part in the oral cavity;
A plurality of graduation lines for reading the position of the second part in the oral cavity in a state where the contact edge is in contact with the first part in the oral cavity are configured by a substantially planar surface of the measurement plate. Tick marks,
In the measuring device for oral cavity provided with
The contact edge is formed in a smooth convex curve shape,
Each graduation line is configured as a curve parallel to the convex curve constituting the contact edge,
Oral measuring instrument characterized by the above. In the measurement tool for oral cavity of Claim 1,
The contact edge is formed in a smooth convex curve shape,
Each graduation line is configured as a curve parallel to the convex curve constituting the contact edge,
Oral measuring instrument characterized by the above.

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