JP3077954B2 - Occlusal pressure diagnostic sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an occlusal pressure diagnostic sheet used for diagnosing an occlusion state of a tooth using a pressure-sensitive sheet.

[0002]

2. Description of the Related Art In the field of dental care, carbon paper has been widely used for diagnosing the state of bite of a tooth. The carbon paper is inserted between the upper and lower teeth of the patient, and in this state, the patient strongly bites, thereby adhering carbon only to the portion where the upper and lower teeth contact. The dentist diagnoses the bite state of the patient from the position and area where the carbon adheres.

[0003]

However, the method using the carbon paper only detects that the upper and lower teeth are in contact, and cannot detect the pressure of the teeth, that is, the occlusal pressure. For this reason, the occlusal pressure must be predicted from the state of carbon adhesion, and the diagnosis of the occlusal condition is likely to be inaccurate, and it is difficult to correctly determine a treatment policy.

Also, in order to attach carbon clearly to the portion where the tooth has touched, it is necessary to apply upper and lower teeth ticking a plurality of times, or rub the jaw left and right to rub the carbon paper contacting portion of the tooth with the tooth tip. Was necessary.

[0005] In addition, since the position where the tooth is in contact with the entire dental arch is unclear, the dentist must look into the oral cavity of the patient and work while checking the position of the carbon paper. For this reason, there was a problem that workability was poor.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to easily and accurately detect the condition of the alignment of the dental arch and the distribution of the occlusal pressure, and to accurately detect the occlusal condition. The purpose of this study is to provide an occlusal pressure diagnostic sheet that can obtain extremely effective data for accurate diagnosis and treatment policy determination, can be easily diagnosed for patients, and can easily work for dentists. And

[0007]

According to the present invention, it is an object of the present invention to provide a color-developing agent in which a color developing agent is coated on one surface of a sheet-shaped synthetic resin support, and the micro-encapsulated color forming agent is further coated on the color developing agent coated layer. A diagnosing sheet formed substantially in a horseshoe shape substantially along the shape of the dental arch, wherein the pressure-sensitive sheet coated with is coated with a synthetic resin back waterproof bonded to the other surface of the support with an adhesive. a layer with the color former transparent synthetic resin sheet waterproof layer covering the coating layer directly laminated on at least the table waterproof layer wherein the sense
The present invention is achieved by an occlusal pressure diagnostic sheet including a pressure layer and a wax layer having a different color from the color of the pressure sheet.

Here, it is desirable to set the color of the pressure-sensitive sheet and the color of the wax layer to a color close to the complementary color relationship.
The occlusal pressure diagnostic sheet is desirably provided with a mark for performing relative positioning with the teeth in advance, or is provided with a protrusion so that the occlusal pressure diagnostic sheet can be fitted to the canine teeth and mounted. A tongue-like knob may be provided on the outer periphery so as to be pinched by a fingertip, or a mark for patient identification may be provided.

[0009]

1 is a plan view of an occlusal pressure diagnostic sheet according to the present invention, FIG. 2 is a plan view of an occlusal pressure diagnostic sheet having another shape, FIG. 3 is a sectional view showing the structure thereof, and FIG. FIG. 9 is a graph showing a change in color density with respect to pressure. In FIG. 3, reference numeral 10 denotes a sheet-shaped synthetic resin support, for example, 25
A PET (polyethylene terephthalate) film having a thickness of μm is used. Reference numeral 12 denotes a developer coating layer, which is formed by applying a solution obtained by dispersing an acid clay (montmorillonite) sulfuric acid-treated product in water containing caustic soda to one surface (surface) of the support 10 and drying the solution. is there.

Reference numeral 14 denotes a color-developing agent coating layer formed on the color-developing agent coating layer 12, which is formed by dissolving a color developing agent such as 1-phenyl-1-xylylethane in oil and microencapsulating the same. is there. Here, the microcapsules are adjusted to various strengths, and the microcapsules to be destroyed change according to the pressure. When the microcapsules are destroyed by the pressure, the color developing agent therein is absorbed by the color developing agent together with the oil to form a color. In this embodiment, the color is red. The color density increases with increasing pressure. FIG. 4 shows the change of the concentration D with respect to the change of the pressure P.

As described above, the support 10 and the developer coating layer 1
After laminating the color-forming agent coating layer 14 with the color-forming agent coating layer 14, the laminate is cut into a substantially horseshoe shape as shown by broken lines in FIGS.
This shape is determined to substantially follow the shape of the human dental arch.

Reference numeral 16 denotes a back waterproof layer, which is formed of the same PET film as the support 10, for example, a 16 μm transparent film. An adhesive type paste is applied to one surface of the back waterproof layer 16 to form an adhesive layer 18. The back waterproof layer 16 is adhered to the back surface of the support 10 (the surface opposite to the developer application layer 12) by the adhesive layer 18.

Reference numeral 20 denotes a front waterproof layer, which is formed of a transparent PET film of 16 μm in the same manner as the back waterproof layer 16. The front waterproof layer 20 is overlaid on the color forming agent coating layer 14, and is adhered to the adhesive layer 18 of the back waterproof layer 16 along the outer periphery of the support 10. In this case, it is desirable that the pressure between the waterproof layers 16 and 20 be sufficiently reduced and evacuated.

As described above, the support 10, the developer coating layer 1
2. The pressure-sensitive sheet 22 is formed by covering the laminate of the coloring agent application layer 14 with the waterproof layers 16 and 20 and bonding the peripheral edges thereof. The pressure-sensitive sheet 22 is sealed with the back waterproof layer 16 and the front waterproof layer 20. For this reason, the water resistance is improved, and even if the saliva adheres in the oral cavity, there is no influence on the coloring property, and the reliability is increased.

Since one waterproof layer 16 is adhered to the back surface of the support 10, the back waterproof layer 16 does not peel off or move with respect to the support 10. Therefore, the front waterproof layer 20 whose periphery is fixed to the back waterproof layer 16 is
Will not move.

The horseshoe-shaped pressure-sensitive sheet 22 waterproofed by the waterproof layers 16 and 20 as described above has a wax layer 2 on both surfaces thereof.
4 and 26 are formed. The wax layers 24 and 26 are formed by uniformly applying a paraffin wax for dental use (JIS-T-6502) to a thickness of, for example, 0.35 ± 0.03 mm. The wax layers 24 and 26 are
Is desirably colored to a color that is close to the complementary color relationship to the color of the color development. In this embodiment, a blue-green color is used. The occlusal pressure diagnostic sheet 28 is completed by applying the wax layers 24 and 26 in this manner.

The occlusal pressure diagnostic sheet 28 shown in FIG. 1 is a part of the outer periphery of the pressure-sensitive sheet 22, that is, the back and front waterproof layers 1.
Protrusions 30, 30 are attached to a part of the portion where
Are integrally formed. These projections 30, 30
This allows the dentist to easily pinch with both fingers and position the seat 28 at a correct position in alignment with the patient's canine tooth. A mark 32 for positioning the sheet 28 is provided near the top of the pressure-sensitive sheet 22 near the center of the patient's front teeth.

The occlusal pressure diagnostic sheet 28A shown in FIG. 2 has a tongue-like protruding knob 34 integrally formed near the top of the outer periphery. The knob 34 is provided with a patient identification mark 36. Reference numeral 38 is a mark for performing positioning based on the front teeth as in the case of the mark 32 in FIG.

The occlusal pressure diagnostic sheets 28, 28A are inserted into the patient's open mouth by grasping the projections 30 and the knobs 34, and align the marks 32, 38 with the front teeth.
The protruding portion 30 is mounted so as to be aligned with the canine teeth so as to uniformly hit the upper part of the upper dentition. When the patient gently bites, the pressure applied between the upper and lower teeth is increased.
And the entire tooth profile of the dental arch is changed to the wax layers 24, 2
6 are recorded as irregularities. At the same time, the pressure applied between the upper and lower teeth is applied to the pressure-sensitive sheet 22, and only the portion where the pressure is applied develops a color according to the magnitude of the pressure. In this embodiment, the color is red.

The dentist can use the occlusal pressure diagnostic sheets 28, 28
The dental arrangement can be known while looking at the dental arch recorded on the wax layers 24 and 26 of FIG.
The magnitude of the occlusal pressure can be known from the color density of the color. Special
The tooth profile of the dental arch recorded in the wax layer 24 is wax.
And the front waterproof layer 20 appears in the wax layer 24.
From the pressure-sensitive sheet through the transparent waterproof layer 20.
Thus, the colored shape of the color 22 appears. For this reason,
The alignment of teeth and occlusal pressure can be seen in contrast,
It is easy to confirm the opposite position. In this way, an accurate diagnosis of the occlusion situation can be made, and a treatment policy can be correctly determined.

FIG. 5 is a sectional view showing the structure of another embodiment. In this embodiment, one wax layer 26 in the embodiment shown in FIG. 2 is omitted, and only the wax layer 24 is provided. When the wax layer is provided on only one surface of the pressure-sensitive sheet 22 as described above, if the wax layer is provided on the side of the color-forming agent application layer 14 of the pressure-sensitive sheet 22, The color increase of the pressure-sensitive sheet 22 appearing in the wax removed by the tooth mold can be checked repeatedly, and the relative position between the two can be easily checked.

[0022] Note that in the case where a wax layer is provided only on the side of the support 10, the wax layer is not an obstacle when checking color image of pressure-sensitive sheet 22, the wax layer uneven image and a pressure-sensitive sheet 22 This is convenient when reading the color image separately.

The occlusal pressure diagnostic sheet is preferably provided with a mark for left / right discrimination and a mark for front / back discrimination. For example, the shape of this sheet can be made asymmetrical in the left and right, punch holes can be provided on either the left or right, or the size of the protrusion 30 shown in FIG.

[0024]

According to the first aspect of the present invention, at least a transparent front cover of a substantially horseshoe-shaped pressure-sensitive sheet wrapped with a waterproof layer is provided.
Since a wax layer of a color different from the color of the pressure-sensitive sheet is formed on the surface on the aqueous layer side, the shape of the dental arch is formed by an image of irregularities recorded on the wax layer, and the size of the position and occlusion pressure of the occlusal portion can be known respectively by the position and density of the color of the pressure sensitive sheet, these dental arch shape and Kan圧Shi
By checking the relative position of the color
Ri, it is possible to obtain effective materials for accurate diagnosis and treatment decision-occlusion situation.

Further, the patient can easily receive a diagnosis by biting the occlusal pressure diagnostic sheet once, and the dentist can monitor the occlusal site and the occlusal pressure only from the occlusal pressure diagnostic sheet without continuously monitoring the patient's mouth. Relationship can be easily determined,
Work becomes easier.

In this case, if the color of the pressure-sensitive sheet and the color of the wax layer are set to colors close to the complementary color relationship, the two can be clearly distinguished and confirmed more easily (claim 2).
In addition, it is desirable that a mark for alignment with the anterior teeth be provided on the occlusal pressure diagnostic sheet.

Further, if a protrusion corresponding to the position of the canine is provided on the periphery, the protrusion can be grasped when the person moves in and out of the oral cavity, and the work is facilitated. Positioning can be performed (claim 4). In addition, if a knob is separately provided for taking in and out of the oral cavity, a mark for identifying a patient is attached, or a mark for left / right / front / back discrimination is attached, it becomes easier to use.

[Brief description of the drawings]

FIG. 1 is a plan view of one embodiment of the present invention.

FIG. 2 is a plan view of another embodiment.

FIG. 3 is a sectional view of one embodiment.

FIG. 4 is a graph showing a change characteristic of a density D with respect to a pressure P of a pressure-sensitive recording sheet.

FIG. 5 is a sectional view of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Support body 12 Developing agent application layer 14 Developing agent application layer 16 Back waterproof layer 18 Adhesive layer 20 Front waterproof layer 22 Pressure sensitive sheet 28, 28A Occlusal pressure diagnostic sheet 30 Protrusion part 32, 38 Positioning mark 34 Knob part 36 Patient identification mark

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-99569 (JP, A) JP-A-4-89047 (JP, A) Japanese Utility Model Application No. 54-89093 (JP, U) Japanese Utility Model Application No. Sho 60- 147416 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A61C 19/05 B41M 5/124

Claims (4)

(57) [Claims] 1. A pressure-sensitive sheet obtained by applying a color developing agent to one surface of a sheet-shaped synthetic resin support, and further applying a microencapsulated color forming agent on the color developing agent coating layer. An occlusal pressure diagnostic sheet formed substantially in a horseshoe shape substantially along the shape of a row bow, comprising: a synthetic resin back waterproof layer adhered to the other surface of the support by an adhesive; and the coloring agent application layer. A transparent synthetic resin front waterproof layer directly covering, at least
Different from the color of the pressure-sensitive sheet that is laminated on the front waterproof layer
An occlusal pressure diagnostic sheet comprising: a color wax layer. 2. The occlusal pressure diagnostic sheet according to claim 1, wherein the color of the color of the pressure-sensitive sheet and the color of the wax layer are set to be substantially complementary. 3. The occlusal pressure diagnostic sheet according to claim 1, wherein a mark for positioning the dental arch is provided. 4. The occlusal pressure diagnostic sheet according to claim 1, wherein a projection for aligning with a canine tooth in a dental arch is integrally formed on an outer periphery.