Color matching aid for shade guide having excellent shape suitability with shade guide

Abstract

Provided is a color matching aid for a shade guide, said color matching aid exhibiting excellent shape suitability even with respect to various forms of rod-attached artificial dental shade guide and functioning as a highly versatile gingival color shade guide holder. The present invention relates to a color matching aid for a shade guide for holding a shaded artificial tooth shade guide, the color matching aid comprising: a main body part having a gingival color on the surface thereof; a recess for the tooth neck part, which is in contact with the tooth neck part of the artificial tooth of the artificial tooth shade guide with the rod; and a shaft insertion port into which the shaft of the shaft-equipped artificial tooth shade guide is inserted, and which has a fall-off suppression mechanism for suppressing the fall-off of the shaft-equipped artificial tooth shade guide.

Description

TECHNICAL FIELD

[0001] The present application relates to a shade matching aid for holding a shade guide used when determining the shade of a dental prosthesis. BACKGROUND

[0002] In dental clinics and dental laboratories, a dental shade guide (Japanese Patent Application Publication No. 2006-6591) is used when determining the shade of a dental prosthesis. Specifically, the color, brightness, and chroma of a patient's tooth that is not missing are compared with the dental shade guide, and the shade of the material used for the patient's tooth is determined based on the information obtained (hereinafter, referred to as shade taking).

[0003] However, in the case of determining the shade of the material based on only the shade of the dental shade guide as in the dental shade guide of Japanese Patent Application Publication No. 2006-6591, the shade design can be incorrect due to the difference from the background color in the oral cavity. Specifically, since the natural tooth in the oral cavity is in a state of being in close contact with the gingiva that is red, the neck portion of the tooth in close contact with the gingiva is sometimes seen as different from the actual shade.

[0004] As one example of the solution to the problem of color judgment by the background color, a gingival shade guide holder is disclosed in Japanese Utility Model Registration No. 3036751.

[0005] The gingival shade guide holder in Japanese Utility Model Registration No. 3036751 has a neck portion recess that is adapted to the shape of the artificial tooth of the dental shade guide, and a stem insertion port that is adapted to the shape of the stem of the dental shade guide, and by being set in a state of holding the dental shade guide at the time of shade taking, the reproducibility of the shade in the oral cavity is improved. SUMMARY

[0006] However, now artificial tooth shade guides are sold by a plurality of manufacturers, and the artificial tooth shape and the stem shape are completely different between the shade guides of different manufacturers. Therefore, the existing gum color shade guide holders are manufactured to be suitable only for the different specific artificial tooth shape and stem shape of each manufacturer, and in the case of different manufacturers, the artificial tooth shade guide cannot be held in the gum color shade guide holder. In addition, even in the case where it can be held, since the shape of the artificial tooth of the artificial tooth shade guide and the neck portion recess of the gum color shade guide holder do not match, the artificial tooth of the held artificial tooth shade guide is easily displaced with respect to the neck portion recess of the gum color shade guide holder, and the problem of falling of the artificial tooth shade guide from the neck portion recess occurs. Therefore, for example, in the case where a plurality of artificial tooth shade guides are present in one dental clinic, the gum color shade guide holders need to be prepared in advance for each type of artificial tooth shade guide.

[0007] In addition, since sharing of the color tone information is required between the dental clinic and the dental laboratory, the dental clinic and the dental laboratory need to use a common artificial tooth shade guide. Therefore, for example, the dental clinic has to configure a plurality of artificial tooth shade guides used by each dental laboratory. Therefore, as the number of artificial tooth shade guides increases, a large number of shade guide holders are required.

[0008] An object of the present application is to provide a shade guide tone matching aid tool which exhibits excellent shape suitability for various shapes of artificial tooth shade guides and functions as a gum color shade guide holder having high versatility.

[0009] The present application provides a shade guide tone matching aid tool for holding a stem-equipped artificial tooth shade guide, characterized by having: a main body portion whose surface has a gum color; a neck portion recess for contacting a neck portion of an artificial tooth of the stem-equipped artificial tooth shade guide; and a stem insertion port for inserting a stem of the stem-equipped artificial tooth shade guide, the shade guide tone matching aid tool having a falling prevention mechanism which prevents the stem-equipped artificial tooth shade guide from falling.

[0010] In the present application, the stem insertion port can be inclined with respect to the main body portion, and the falling prevention mechanism can be constituted by the stem insertion port.

[0011] The shade guide tone matching aid tool of the present application can be formed with a window portion below the neck portion recess.

[0012] The shade guide tone matching aid tool of the present application can be formed with a plurality of window portions, and a rib can be formed between adjacent window portions on the back surface of the main body portion.

[0013] The number of the window portions of the color matching auxiliary tool for a color guide according to the present application can be 3 to 6.

[0014] In the present application, the rod insertion port can be provided so as to be inclined by 1 to 5° with respect to the main body portion.

[0015] In the present application, the size of the rod insertion port in the front-rear direction can be 0.4 to 1.2 mm.

[0016] In the present application, the rod insertion port can have a flared portion that expands the size in the front-rear direction.

[0017] In the present application, a plurality of ribs can be formed on the back surface of the main body portion, and the falling-off suppression mechanism can be constituted by the plurality of ribs.

[0018] In the present application, the plurality of ribs can be formed with narrow-width portions whose intervals from each other become narrower.

[0019] Further, the present application provides a method of performing color matching, wherein the method of performing color matching uses the rod-equipped artificial tooth color guide inserted into the color matching auxiliary tool for a color guide according to the present application.

[0020] Further, the present application provides a set, wherein the set is a set of the color matching auxiliary tool for a color guide and the rod-equipped artificial tooth color guide according to the present application.

[0021] In the present specification, the rod insertion port being provided so as to be inclined with respect to the main body portion can mean that, in a side view of the color matching auxiliary tool for a color guide, the extending direction of the inner wall surface of the rod insertion port is inclined with respect to the extending direction of the back surface of the main body portion.

[0022] In the present specification, the front side of the color matching auxiliary tool for a color guide can mean the front surface side of the main body portion.

[0023] In the present specification, the back side of the color matching auxiliary tool for a color guide can mean the back surface side of the main body portion.

[0024] In the present specification, the front-rear direction refers to the direction connecting the front side and the back side of the color matching auxiliary tool for a color guide.

[0025] In the present specification, the upper side of the color matching auxiliary tool for a color guide can mean the side on which the recess for a tooth neck portion is formed.

[0026] In the present specification, the lower side of the color matching auxiliary tool for a color guide can mean the side opposite to the side on which the recess for a tooth neck portion is formed.

[0027] In the present specification, the up-down direction refers to the direction connecting the upper side and the lower side of the color matching auxiliary tool for a color guide.

[0028] In the present specification, the left side of the color chart tone matching auxiliary tool can mean the left side when the surface side of the main body portion of the color chart tone matching auxiliary tool is viewed from the front.

[0029] In the present specification, the right side of the color chart tone matching auxiliary tool can mean the right side when the surface side of the main body portion of the color chart tone matching auxiliary tool is viewed from the front.

[0030] In the present specification, the left-right direction refers to the direction connecting the left side and the right side of the color chart tone matching auxiliary tool.

[0031] According to the present application, it is possible to provide a color chart tone matching auxiliary tool that exhibits excellent shape suitability for various types of artificial tooth color chart and functions as a highly versatile gingival color chart holder. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a front view of the color chart tone matching auxiliary tool in an embodiment.

[0033] Figure 2 is a back view of the color chart tone matching auxiliary tool in an embodiment.

[0034] Figure 3 is a plan view of the color chart tone matching auxiliary tool in an embodiment.

[0035] Figure 4 is a bottom view of the color chart tone matching auxiliary tool in an embodiment.

[0036] Figure 5 is a right side view of the color chart tone matching auxiliary tool in an embodiment.

[0037] Figure 6 is a left side view of the color chart tone matching auxiliary tool in an embodiment.

[0038] Figure 7 is a perspective view of the front side of the color chart tone matching auxiliary tool in an embodiment.

[0039] Figure 8 is a perspective view of the back side of the color chart tone matching auxiliary tool in an embodiment.

[0040] Figure 9 is an A-A line sectional view of Figure 1

[0041] Figure 10 ​is a front side schematic view of a color matching jig for a color chart that holds the states of two color charts for artificial teeth with rods.

[0042] Figure 11 is a back side schematic view of a color matching jig for a color chart that holds the states of three color charts for artificial teeth with rods.

[0043] Figure 12 is a view showing one example of the structure of a plurality of ribs viewed from the back side of the color matching jig for a color chart.

[0044] Figure 13 is a view showing one example of the structure of a plurality of ribs viewed from the back side of the color matching jig for a color chart.

[0045] Figure 14 is a view showing one example of the structure of a plurality of ribs viewed from the upper surface side of the color matching jig for a color chart.

[0046] Figure 15 is a view showing one example of the structure of a plurality of ribs viewed from the upper surface side of the color matching jig for a color chart.

[0047] Figure 16 is a view showing one example of the structure of a plurality of ribs viewed from the back side of the color matching jig for a color chart.

[0048] Figure 17 is a sectional view of a rod insertion port forming portion.

[0049] Figure 18 is a view showing a part of Figure 17 enlarged.

[0050] Figure 19 is a schematic side view of a color matching jig for a color chart that holds the states of color charts for artificial teeth with rods.

[0051] Figure 20 (A) to (D) in

[0052] Figure 21 is a plan view showing a base portion in which a rod insertion port is formed, together with a cross section of a main body portion.

[0053] Figure 22 is a bottom view showing a base portion in which a rod insertion port is formed, together with a main body portion.

[0054] Figure 23 (A) to (F) in

[0055] Figure 24(A) to (B) in FIG. 1 are diagrams showing display positions of the shade marks.

[0056] In the drawings, the reference numerals are as follows.

[0057] 1: Shade matching aid for color chart

[0058] 11: Main body

[0059] 11a: Surface

[0060] 11b: Upper surface

[0061] 11c: Back surface

[0062] 11d: Both ends

[0063] 11e: Upper end

[0064] 12: Raised portion

[0065] 12a: Front surface

[0066] 12b: Upper end

[0067] 12c: Connection surface

[0068] 13: Shade mark

[0069] 14: Window portion

[0070] 15: Rib

[0071] 21: Concave portion for tooth neck

[0072] 31: Rod insertion port

[0073] 41: Base

[0074] 5: Artificial tooth color chart with rod

[0075] 51: Artificial tooth

[0076] 51A: Tooth neck

[0077] 52: Rod DETAILED DESCRIPTION

[0078] Hereinafter, an embodiment of the present application will be specifically described. However, the present application is not limited to the following embodiment.

[0079] Figures 1-6 FIGS. 1A to 1E are diagrams showing a color chart shade matching aid 1 according to an embodiment of the present application. FIG. 1A is a front view, FIG. 1B is a back view, FIG. 1C is a plan view, FIG. 1D is a bottom view, and FIG. 1E is a right side view. Figure 7 and Figure 8These are, respectively, 3D images of the front and back sides of the color matching tool 1. Figure 9 yes Figure 1 A sectional view along line AA.

[0080] The color matching aid 1 for a shade guide in this embodiment includes: a main body 11; a cervical recess 21 (described in detail later) for contacting the cervical region of the artificial tooth in the shade guide 5 with a bar; and a bar insertion port 31 for inserting the bar of the shade guide 5. In the color matching aid 1 for a shade guide in this embodiment, the cervical recess 21 is formed at the upper end of the main body 11. The size of the color matching aid 1 for a shade guide can be, for example, set to a height (…). Figure 1 (Up and down direction) 10-40mm, width ( Figure 1 (in the left and right directions) 20-120mm and thickness ( Figure 1 (front and back direction) 2-10mm. The shade matching aid 1 for the shade guide of this embodiment has a height of 30mm, a width of 36mm, and a thickness of 5mm. The number of tooth neck recesses 21 and rod insertion ports 31 can be set to the maximum number of rod artificial tooth shade guides that can be held. The shade matching aid 1 for the shade guide of this embodiment has three tooth neck recesses 21 and three rod insertion ports 31.

[0081] The surface 11a of the main body 11 is gingival-colored. In this embodiment, the main body 11... Figure 1 The frontal view shown has a roughly rectangular shape and is formed as a thickness ( Figure 1 The front-to-back direction is fixed. The main body 11 of this embodiment also has an upper surface 11b and a back surface 11c. In the main body 11 of this embodiment, the thickness ( Figure 1 The portion that gradually decreases in the front-to-back direction has an upper surface 11b. In this embodiment, the back surface 11c is planar, and in this embodiment, the extending direction of the back surface 11c forms the extending direction of the rectangular shape of the main body 11. In the main body 11 of this embodiment, an R-shaped chamfer is performed, such that... Figure 1 The two ends 11d in the width direction below, as shown in the frontal view, are rounded. The value of the R chamfer is not particularly limited, and the radius can be set from 0.2 to 5 mm. In particular, by making the R chamfer value 0.2 mm or more, pain can be reduced even if it comes into contact with a part of the patient's body during colorimetry.

[0082] The main body 11 of the present embodiment is provided with a protruding portion 12 on the surface 11a. The protruding portion 12 of the present embodiment is integrally provided with the main body 11 by the same material as the main body 11, and has the same gingival color as the main body 11. In addition, the protruding portion 12 of the present embodiment is provided from the approximate center in the height direction of the surface 11a of the main body 11 to the upper end 11e of the upper surface 11b. The protruding portion 12 of the present embodiment has a front surface 12a that constitutes, together with the surface 11a of the main body 11, the surface of the color matching aid tool 1 for colorimetry, and a connecting surface 12c that connects the upper end 12b of the front surface 12a and the upper end 11e of the upper surface 11b of the main body 11. In particular, in the present embodiment, the upper surface 11b of the main body 11 and the connecting surface 12c are formed on the same plane to constitute the same surface. Therefore, in the present embodiment, the recessed portion 21 for the cervical portion spans the upper end 11e of the main body 11 and the protruding portion 12, and is formed to open on the upper surface 11b of the main body 11 and the connecting surface 12c. The protruding portion 12 of the present embodiment has a shape that simulates a gingiva.

[0083] The material of the main body 11 is not particularly limited, and for example, a resin material colored in a gingival color can be used. Specifically, polyvinyl chloride, polystyrene, polyethylene terephthalate, polymethyl methacrylate, acrylonitrile-butadiene-styrene resin, and acrylonitrile-styrene resin as thermoplastic resins, polyethylene, polypropylene, and styrene-butadiene copolymer resin as elastic materials, polyurethane and silicone resin as thermosetting resins, and the like can be used. In the present embodiment, the main body 11 is manufactured using acrylonitrile-styrene resin colored in a gingival color. Therefore, the entire main body 11 of the present embodiment has a gingival color.

[0084] As the gingival color possessed by the main body 11, for example, the a* value as an index of red color can be set to 5.0 or more. The "a* value" in the present invention refers to one of the numerical values of the color used in the L*a*b* color system, and the a* value is the red color, that is, the numerical value indicating the red direction of the L*a*b* color system chromaticity diagram. The a* value can be measured using a spectrophotometer, and for example, it can be measured by a colorimeter VSS7700 (manufactured by Nippon Denshoku Industries Co., Ltd.) using a reflection colorimetric method (measurement field: 2°, measurement diameter: 0.5 mm, light source: C). The main body 11 can be manufactured without limitation using the usual resin molding manufacturing method possessed by the manufacturer. As the usual manufacturing method, injection molding, compression molding, extrusion molding, vacuum molding, stack molding, and 3D printing molding can be used. In the present embodiment, the main body 11 is manufactured by injection molding.

[0085] In this embodiment, the cervical recess 21 and the bar insertion port 31 are integrally formed with the main body 11 using the same material. Therefore, in this embodiment, the cervical recess 21 and the bar insertion port 31 are also manufactured by injection molding using acrylonitrile-styrene resin colored to the gum line, resulting in an overall gum line color. It should be noted that the cervical recess 21 and the bar insertion port 31 can be manufactured using materials different from the main body 11, or they can be manufactured as other components.

[0086] In the main body 11 of this embodiment, a hue mark 13 representing the gingival color hue is displayed on the surface 11a. Specifically, in this embodiment, the hue mark 13 is displayed near the window portion 14. By displaying such a hue mark 13 on the surface 11a, the management of each gingival color compared to a color chart becomes easier. Furthermore, errors in gingival color selection can be suppressed. Such a hue mark 13, for example, can be represented with a maximum size in the range of 2mm to 5mm. Additionally, the hue mark 13, for example, can be formed near the raised portion 12 of the hue mark by engraving with a molding die having a maximum diameter of 3mm.

[0087] In this embodiment, the main body 11 has a window 14 formed below the recess 21 at the cervical region, penetrating the surface 11a and the back surface 11c. In particular, a portion of the window 14 in this embodiment is formed across the raised portion 12. For example, as... Figure 10 and Figure 11 As shown, when the window portion 14 holds the bar-mounted artificial tooth shade guide 5, it can form a hue mark symbol that can be visually identified from the surface 11a side of the main body portion 11 and displayed on the held bar-mounted artificial tooth shade guide 5. Figure 10 The positions of "A" and "B" in the bar of the artificial tooth shade guide 5. By forming such a window, the shade markings recorded on the bar artificial tooth shade guide 5 can be identified without having to attach or detach the shade guide from the shade guide using the shade matching aid 1.

[0088] Window 14, for example, can be set to a size that matches the size of the hue markings on a commercially available bar-mounted artificial tooth shade guide 5, and from a generality point of view, can be configured in the height direction ( Figure 1 The vertical direction) is set to 3-10mm, and the width direction ( Figure 1 The left and right directions are set to 4-9mm.

[0089] In particular, in the present embodiment, the shade mark 13 is formed in the vicinity of the window portion 14. Therefore, the shade mark of the strip-shaped artificial tooth shade guide 5 and the shade mark 13 of the gum color can be easily visually confirmed at the same time through the window portion 14. Therefore, the selection error of the gum color is effectively suppressed. Note that the shade mark 13 can be formed in the vicinity of the window portion 14 or on a surface other than the surface 11a of the main body portion 11.

[0090] In particular, in the present embodiment, the window portion 14 is formed so as to gradually increase from the back surface 11c toward the surface 11a. By forming the window portion in this way, the shade mark of the artificial tooth shade guide can be easily visually confirmed.

[0091] The number of the window portions 14 can be the same as the maximum number of the strip-shaped artificial tooth shade guides to be held by the cervical concave portion 21 and the stem insertion port 31, and in the present embodiment, three window portions 14A to 14C are formed. The maximum number of the strip-shaped artificial tooth shade guides to be held can be, for example, 1 to 10, or 3 to 6. By setting the maximum number of the strip-shaped artificial tooth shade guides to be held to three or more, the study of the color matching in the state of being arranged as the incisors, the lateral incisors, and the canines can be easily performed. In addition, by setting the maximum number of the strip-shaped artificial tooth shade guides to be held to six or less, the study of the color matching of the six front teeth that are seen when the mouth is opened can be easily performed. The interval between the window portions in the case where a plurality of window portions are formed can be determined by the size of the artificial tooth 51 of the strip-shaped artificial tooth shade guide 5 to be held.

[0092] A plurality of ribs 15 are formed on the back surface 11c of the main body portion 11 of the present embodiment. Specifically, the ribs 15A to 15D are formed on the back surface 11c of the main body portion 11 to sandwich the plurality of window portions 14A to 14C. The ribs 15B and 15C are formed between the adjacent window portions 14. The plurality of ribs 15 of the present embodiment are provided so as to be integrated with the main body portion 11 by the same material as the main body portion 11.

[0093] The ribs formed between the adjacent window portions 14 function as dividers of the adjacent retained strip artificial tooth shade guide 5, and also function as guides that retain the direction of the strip artificial tooth shade guide 5. Therefore, in the present embodiment, by providing ribs between the adjacent window portions 14, the strip artificial tooth shade guide 5 can be retained in the up-and-down direction regardless of the width of the stem of the retained strip artificial tooth shade guide 5. Therefore, even in the case where a large force in the left-and-right direction is applied to the shade guide tone matching auxiliary tool 1 that retains the strip artificial tooth shade guide 5, the movement of the stem of the strip artificial tooth shade guide 5 in the left-and-right direction is restricted by the plurality of ribs 15. Therefore, it is possible to suppress the strip artificial tooth shade guide 5 from falling out of the tooth neck portion recess 21 by causing a large displacement of the stem of the strip artificial tooth shade guide 5 in the left-and-right direction.

[0094] As in the present embodiment, the falling-out suppression mechanism that suppresses the strip artificial tooth shade guide 5 from falling out can be constituted by a plurality of ribs. Note that in the case where the falling-out suppression mechanism is constituted by other mechanisms and the falling-out of the strip artificial tooth shade guide 5 is sufficiently suppressed, the plurality of ribs 15 need not be formed, and in the case where the plurality of ribs 15 are formed, the falling-out suppression mechanism need not be constituted.

[0095] The shape and size of the plurality of ribs 15 are not particularly limited, and for example, in the case where the plurality of ribs 15 are formed in the back surface shown in FIG. 6, the plurality of ribs 15 can be formed in a substantially rectangular shape that is long in the up-and-down direction, and the width in the left-and-right direction (the size in the left-and-right direction) can be set to 0.5 to 2 mm, and the length in the up-and-down direction (the size in the up-and-down direction) can be set to 3 to 9 mm. Figure 2

[0096] The material of the plurality of ribs 15 is not particularly limited, and the same material as that used for the main body portion 11 can be used.

[0097] The plurality of ribs 15 can be provided so that the interval between the plurality of ribs 15 adjacent to each other is fixed, or can be provided so as to vary. In the case where the plurality of ribs 15 are provided so that the interval between the plurality of ribs 15 adjacent to each other varies, for example, the plurality of ribs 15 can be constituted so as to form a narrow portion in which the interval between the plurality of ribs 15 adjacent to each other narrows.

[0098] As one example of the structure of the plurality of ribs 15 that form such a narrow portion, as shown in FIG. 7, a substantially rectangular shape that is long in the up-and-down direction can be provided so that the size in the left-and-right direction of the lower side in the up-and-down direction of the plurality of ribs 15 is large. In this case, it is possible to greatly suppress the displacement of the stem of the strip artificial tooth shade guide 5 in the left-and-right direction with the artificial tooth of the strip artificial tooth shade guide 5 as the center. Figure 12

[0099] As another example of the structure of the plurality of ribs 15 that form a narrow portion, as shown in FIG. 8, a substantially rectangular shape that is long in the up-and-down direction can be provided so that the size in the left-and-right direction of the lower side in the up-and-down direction of the plurality of ribs 15 is large. In this case, it is possible to greatly suppress the displacement of the stem of the strip artificial tooth shade guide 5 in the left-and-right direction with the artificial tooth of the strip artificial tooth shade guide 5 as the center. Figure 13 ​​As shown, the upper side of the plurality of ribs 15, which are longitudinally long and have a substantially rectangular shape, can be set to have a larger size in the left-right direction than the lower side. In this case, since the plurality of ribs 15 are formed along the rods of the rod-equipped artificial tooth shade guide 5 that are displaced in the left-right direction with the artificial tooth as the center, the amount of force absorbed by the plurality of ribs 15 can be increased.

[0100] As shown, the plurality of ribs 15 can also be set to have a trapezoidal shape in plan view in which the size of the front side in the front-rear direction of the plurality of ribs 15 is larger than the size of the rear side. In this case, the replacement of the rod-equipped artificial tooth shade guide 5 can be easily performed. Figure 14 As shown, the plurality of ribs 15 can also be set to have a trapezoidal shape in plan view in which the size of the front side in the front-rear direction of the plurality of ribs 15 is larger than the size of the rear side. In this case, the replacement of the rod-equipped artificial tooth shade guide 5 can be easily performed.

[0101] Figure 15 As shown, the plurality of ribs 15 can also be set to have a trapezoidal shape in plan view in which the size of the front side in the front-rear direction of the plurality of ribs 15 is larger than the size of the rear side. In this case, the replacement of the rod-equipped artificial tooth shade guide 5 can be easily performed.

[0102] As shown, the plurality of ribs 15 can also be set to have a trapezoidal shape in plan view in which the size of the front side in the front-rear direction of the plurality of ribs 15 is larger than the size of the rear side. In this case, the replacement of the rod-equipped artificial tooth shade guide 5 can be easily performed. Figure 16 As shown, the plurality of ribs 15 can also be set to have a trapezoidal shape in plan view in which the size of the front side in the front-rear direction of the plurality of ribs 15 is larger than the size of the rear side. In this case, the replacement of the rod-equipped artificial tooth shade guide 5 can be easily performed.

[0103] In a state in which the rod-equipped artificial tooth shade guide 5 is held in the up-down direction, the plurality of ribs 15 can also not be in contact with the rods of the rod-equipped artificial tooth shade guide 5. In this case, the exchange of the rod-equipped artificial tooth shade guide 5 can be easily performed.

[0104] In a state in which the rod-equipped artificial tooth shade guide 5 is held in the up-down direction, the plurality of ribs 15 can also be in contact with one of the left-right directions of the rods of the rod-equipped artificial tooth shade guide 5.

[0105] In a state in which the rod-equipped artificial tooth shade guide 5 is held in the up-down direction, the plurality of ribs 15 can also be in contact with both of the left-right directions of the rods of the rod-equipped artificial tooth shade guide 5.

[0106] In a state in which the rod-equipped artificial tooth shade guide 5 is held in the up-down direction, the tooth neck portion recess 21 is in contact with at least a portion of the tooth neck portion 51A of the artificial tooth 51 of the rod-equipped artificial tooth shade guide 5. This tooth neck portion recess 21 imitates the close-contact structure of a natural tooth and a gum, is in close contact with the tooth neck portion of the artificial tooth, and reproduces an appearance without a gap.

[0107] Figure 2 The tooth neck portion recess 21 of the present embodiment is formed so as to span the upper end 11e of the main body portion 11 and the protrusion portion 12. Specifically, the tooth neck portion recess 21 of the present embodiment is formed so as to span the upper end 11e of the main body portion 11 and the protrusion portion 12.​The back surface view shown is formed in a U-shape. In particular, the concave portion 21 for the neck portion of the tooth of the present embodiment is formed in a U-shape that gradually decreases from the back surface 11c side of the main body portion 11 to the surface 11a side.

[0108] Although the width of the concave portion 21 for the neck portion of the tooth can be designed to fit the shape of the neck portion 51A of the artificial tooth 51 of the commercially available artificial tooth with a stem color guide 5, from the viewpoint of versatility, it can be set to 7 to 10 mm, for example, and can be set to 8 to 9 mm. In addition, the inner surface of the concave portion 21 for the neck portion of the tooth can be mirror finished or embossed.

[0109] The stem insertion port 31 is used to insert the stem of the artificial tooth with a stem color guide 5. In the present embodiment, a base portion 41 is provided on the back surface side of the main body portion 11, and the stem insertion port 31 is formed in the base portion 41. Also, since the base portion 41 is formed of the same material as the main body portion 11 and is integrated with the main body portion 11, the stem insertion port 31 is also formed of the same material as the main body portion 11 and is integrated with the main body portion 11.

[0110] Figure 17 is a cross-sectional view of the portion where the stem insertion port is formed, Figure 18 is an enlarged view of a portion of Figure 17 Figure 19 is a schematic side view of the color guide tonal matching auxiliary tool in a state of holding the artificial tooth with a stem color guide 5. In addition, Figure 20 (A) to (D) in Figures 17-19 ​As shown in detail, the rod insertion port 31 of the present embodiment is inclined with respect to the main body portion 11. Specifically, the extending direction of the rod insertion port 31 is inclined with respect to the extending direction of the back surface 11c of the main body portion 11, i.e., the extending direction of the main body portion 11, when the color-matching aid for colorimetric plate 1 is observed from the side. In other words, the rod insertion port 31 is not parallel to the main body portion 11 when the color-matching aid for colorimetric plate 1 is observed from the side. If the rod insertion port 31 is provided in such a structure, in the rod 52 of the rod-and-artificial-tooth colorimetric plate 5 which extends in the up-and-down direction by its own weight, i.e., in a state of extending parallel to the main body portion 11, the portion inserted into the rod insertion port 31 is pressed in a direction away from the main body portion 11 by contact with the surface of the main body portion 11 side of the rod insertion port 31. Therefore, since the rod 52 of the rod-and-artificial-tooth colorimetric plate 5 is bent so as to protrude as a whole toward the surface side of the main body portion 11, the artificial tooth 51 of the rod-and-artificial-tooth colorimetric plate 5 is pressed and pushed toward the neck portion recess 21. Thus, the rod-and-artificial-tooth colorimetric plate 5 is inhibited from falling out of the neck portion recess 21, and the adhesion feeling of the neck portion recess 21 and the neck portion 51A of the artificial tooth 51 is not impaired. In addition, since the bending of the rod 52 of the rod-and-artificial-tooth colorimetric plate 5 can occur regardless of the shape of the rod-and-artificial-tooth colorimetric plate 5, the rod-and-artificial-tooth colorimetric plate 5 can be inhibited from falling out of the neck portion recess 21 as long as it is a shape which can be inserted into the rod insertion port 31, even if it is any shape.

[0111] As in the present embodiment, the falling-out inhibiting mechanism which inhibits the rod-and-artificial-tooth colorimetric plate 5 from falling out can be constituted by the rod insertion port 31. Note that, in a case where the falling-out inhibiting mechanism is constituted by another mechanism and the falling of the rod-and-artificial-tooth colorimetric plate 5 is sufficiently inhibited, the rod insertion port 31 need not constitute the falling-out inhibiting mechanism.

[0112] For example, the rod insertion port 31 can be inclined by 1 to 5° with respect to the main body portion 11, and can be inclined by 3 to 5°. By setting the inclination angle to 1° or more, the rod-and-artificial-tooth colorimetric plate 5 can be further inhibited from falling out of the neck portion recess 21. By setting the inclination angle to 5° or less, the rod of the rod-and-artificial-tooth colorimetric plate 5 can be prevented from being unable to be inserted into the rod insertion port 31. In a case where the surface of the main body portion 11 side of the rod insertion port 31 is not parallel to the surface facing the surface of the main body portion 11 side in the side observation of the color-matching aid for colorimetric plate 1, the surface of the main body portion 11 side of the rod insertion port 31 can be inclined by 1 to 5° with respect to the main body portion 11, and can be inclined by 3 to 5°.

[0113] Figure 21 is a plan view showing the base portion 41 in which the rod insertion port 31 is formed, together with the cross section of the main body portion, Figure 22is a bottom view of the base portion 41 shown together with the main body portion, which shows the rod insertion port 31. The rod insertion port 31 can be provided, for example, with a dimension in the front-rear direction of 0.4 to 1.2 mm. By providing the dimension in the front-rear direction to be 0.4 mm or more, it is possible to avoid the rod of the rod-equipped artificial tooth shade guide 5 from not being able to be inserted into the rod insertion port 31, and by providing it to be 1.2 mm or less, it is possible to easily hold a normal rod-equipped artificial tooth shade guide 5. The dimension in the front-rear direction of the rod insertion port 31 of the present embodiment is 0.5 mm.

[0114] The dimension in the left-right direction of the rod insertion port 31 can be provided, for example, with a dimension in the left-right direction of 4.5 to 10.0 mm. By providing the dimension in the left-right direction to be 4.5 mm or more, it is possible to avoid the rod of the rod-equipped artificial tooth shade guide 5 from not being able to be inserted into the rod insertion port 31. Also, by providing it to be 10.0 mm or less, it is possible to easily hold a normal rod-equipped artificial tooth shade guide 5.

[0115] The rod insertion port 31 can also have an expansion portion 31A that expands the dimension in the front-rear direction. If such an expansion portion is provided, insertion and extraction of the rod into the rod insertion port 31 becomes easier.

[0116] The shape of the expansion portion 31A that expands the dimension in the front-rear direction of the rod insertion port 31 is not particularly limited, and as shown in Figure 21 , the expansion portion 31A can be provided, as viewed from the bottom view of the base portion 41, with a shape having a circular arc-shaped outline. Also, the expansion portion 31A can be provided, as viewed from the bottom view of the base portion 41, with a shape having an elliptical arc-shaped outline.

[0117] Figure 23 (A) to (F) in Figure 23 , the expansion portion 31A can be provided, as viewed from the bottom view of the base portion 41, with a shape having a rectangular outline. Also, the expansion portion 31A can be provided, as viewed from the bottom view of the base portion 41, with a shape having a trapezoidal outline.

[0118] As shown in (B) in Figure 23 , the expansion portion 31A can also be provided, as viewed from the bottom view of the base portion 41, with a shape that combines a portion having a rectangular outline that is continuous with the rod insertion port 31 (or a portion having a trapezoidal outline) and a portion having a circular arc-shaped outline that is continuous with the portion having the rectangular outline (or a portion having an elliptical arc-shaped outline).

[0119] As shown in (C) in Figure 23 , the expansion portion 31A can be provided, as viewed from the bottom view of the base portion 41, with a shape having a triangular outline. Also, as shown in (D) inFigure 23 As shown in (D), when viewed from the bottom view of the base 41, the expansion portion 31A can also be configured as a shape that combines a shape portion having a rectangular outline that is continuous with the rod insertion port 31 (or a shape portion having a trapezoidal outline) and a shape portion having a triangular outline that is continuous with the shape portion having the rectangular outline.

[0120] like Figure 23 As shown in (E), when viewed from the bottom side of the base 41, the extended portion 31A can be configured to have a rectangular outline, and the R-shaped chamfering process gives the two ends that are not connected to the rod insertion port 31 a rounded shape. Furthermore, as... Figure 23 As shown in (F), when viewed from the bottom side of the base 41, the extended portion 31A can be configured to have a rectangular outline, and the two ends that are not connected to the rod insertion port 31 are tapered.

[0121] The front-to-back dimension of the expansion portion 31A can be set to 0.5 to 2 times the front-to-back dimension of the insertion port. In this embodiment, the front-to-back dimension is 1 times (0.5 mm in this embodiment).

[0122] The rod insertion port 31 in the base 41 can, for example, be configured such that the upper end is tangent to the back of the main body 11 or located at a position 0.5 to 3.0 mm from the back of the main body 11.

[0123] The structure of the base 41 can be set to any structure as long as it can form the rod insertion port 31. For example, the front-to-back dimension of the base 41 can be set to more than, 1.5 times or more than, or 2 times more than, the front-to-back dimension of the main body 11. For example, the front-to-back dimension of the base 41 can be set to less than 20 mm. By setting the front-to-back dimension to such a structure, the color chart with the color matching aid 1 can be placed in a self-standing state (the main body 11 extends in the vertical direction).

[0124] With the plurality of artificial tooth shade guides 5 held in place, the artificial teeth of the plurality of artificial tooth shade guides 5 can either be in contact with each other or have a gap of 0.1 to 0.5 mm.

[0125] Secondly, the rod-mounted artificial tooth shade guide 5, which serves as a color matching aid in this embodiment, can be configured as a typical rod-mounted artificial tooth shade guide. Ceramic, glass-ceramic, glass, and polymer-based artificial teeth 51 can be configured to be fixed to a metal or polymer-based rod 52. Multiple such typical rod-mounted artificial tooth shade guides 5 are arranged horizontally, vertically, or in a fan shape and housed in a retainer for sale. During color matching, the surgeon removes any one of the rod-mounted artificial tooth shade guides 5 from the retainer for use.

[0126] In the case of the present embodiment, color matching using the artificial tooth shade guide with a stem inserted into the color shade matching aid for a shade guide of the present embodiment can be performed. In addition, the color shade matching aid for a shade guide of the present embodiment and the artificial tooth shade guide with a stem that can be held by the color shade matching aid for a shade guide of the present embodiment can constitute a set.

[0127] Figure 24 (A) to (B) in FIG. 13 are diagrams showing modified examples of the display position of the color shade mark 13. As shown in (A) in FIG. 13, the color shade mark 13 can also be formed so that the position in the up-down direction of the upper end of the color shade mark 13 and the upper end of the window portion 14 is the same. In addition, as shown in (B) in FIG. 13, the color shade mark 13 can also be formed so that the upper end of the color shade mark 13 is located lower than the lower end of the window portion 14. Figure 24 Figure 24

[0128] The color shade matching aid for a shade guide 1 of the above-described embodiment that holds the artificial tooth shade guide with a stem has a main body portion 11 whose surface 11a has a gingival color, a cervical portion recess 21 for contacting the cervical portion 51A of the artificial tooth 51 of the artificial tooth shade guide with a stem 5, and a stem insertion port 31 for inserting the stem 52 of the artificial tooth shade guide with a stem 5 and having a falling-out inhibiting mechanism that inhibits the falling-out of the artificial tooth shade guide with a stem 5. Therefore, the color shade matching aid for a shade guide 1 of the above-described embodiment exhibits excellent shape suitability with respect to artificial tooth shade guides with stems of various forms and functions as a gingival color shade guide holder with high versatility.

[0129] ​​In the above embodiment, the rod insertion port 31 is provided so as to be inclined with respect to the main body portion 11, and the falling-off suppression mechanism is constituted by the rod insertion port 31. By being provided as such a structure, in the rod 52 of the rod-equipped artificial tooth shade guide 5 in a state of extending in the up-and-down direction by the weight (i.e., in a state of extending in parallel with the main body portion 11), the portion inserted into the rod insertion port 31 is pressed in a direction away from the main body portion 11 by being in contact with the surface of the main body portion 11 side of the rod insertion port 31. Therefore, the rod 52 of the rod-equipped artificial tooth shade guide 5 is bent so as to be convex as a whole toward the surface side of the main body portion 11, and thus the artificial tooth 51 of the rod-equipped artificial tooth shade guide 5 is pressed and pushed toward the cervical portion recess 21. Therefore, the falling-off of the rod-equipped artificial tooth shade guide 5 from the cervical portion recess 21 is suppressed, and the close-fitting feeling of the cervical portion recess 21 and the cervical portion 51A of the artificial tooth 51 is not destroyed. In addition, since the bending of the rod 52 of the rod-equipped artificial tooth shade guide 5 can occur regardless of the shape of the rod-equipped artificial tooth shade guide 5, as long as it is a shape that can be inserted into the rod insertion port 31, even if the rod-equipped artificial tooth shade guide 5 is any shape, the falling-off of the rod-equipped artificial tooth shade guide 5 from the cervical portion recess 21 can be suppressed.

[0130] In the above embodiment, the window portion 14 is formed below the cervical portion recess 21. Therefore, without detaching the rod-equipped artificial tooth shade guide 5 from the shade guide tone matching aid tool 1, the shade tone notation recorded in the rod-equipped artificial tooth shade guide 5 can be confirmed.

[0131] In the above embodiment, a plurality of window portions 14 are formed, and the ribs 15 are formed between the adjacent window portions 14 on the back surface 11c of the main body portion 11. Therefore, since the rod-equipped artificial tooth shade guide 5 can be held in the up-and-down direction regardless of the rod width of the rod-equipped artificial tooth shade guide 5 held, even in a case where a large force in the left-and-right direction is applied to the shade guide tone matching aid tool 1 holding the rod-equipped artificial tooth shade guide 5, the movement of the rod of the rod-equipped artificial tooth shade guide 5 in the left-and-right direction is restricted by the plurality of ribs 15. Therefore, the falling-off of the rod-equipped artificial tooth shade guide 5 from the cervical portion recess 21 by causing a large displacement of the rod of the rod-equipped artificial tooth shade guide 5 in the left-and-right direction can be suppressed.

[0132] In the above embodiment, the number of window portions 14 is 3 to 6. Therefore, the research of the shade in the state of being arranged into the central incisor, the lateral incisor, and the canine tooth can be easily performed, and the research of the shade of the six front teeth seen when the mouth is opened can be easily performed.

[0133] In the above embodiment, the rod insertion port 31 is provided so as to be inclined by 1 to 5° with respect to the main body portion 11. Therefore, the falling-off of the rod-equipped artificial tooth shade guide 5 from the cervical portion recess 21 can be further suppressed, and the rod of the rod-equipped artificial tooth shade guide 5 can be prevented from not being able to be inserted into the rod insertion port 31.

[0134] In the above embodiment, the dimension of the rod insertion port 31 in the front-rear direction is 0.4 to 1.2 mm. Thus, it is possible to avoid that the rod of the rod-equipped artificial tooth shade guide 5 cannot be inserted into the rod insertion port 31, and it is possible to easily maintain the usual rod-equipped artificial tooth shade guide 5.

[0135] In the above embodiment, the rod insertion port 31 has a flared portion 31A that expands the dimension in the front-rear direction. Thus, it is possible to easily perform the insertion and extraction of the rod into the rod insertion port 31.

[0136] In the above embodiment, the plurality of ribs 15 are configured to form narrow portions whose intervals are narrowed.

[0137] As a method of shade matching using the shade guide color matching aid tool 1 of the above embodiment, for example, it is possible to set a method of performing shade matching using a rod-equipped artificial tooth shade guide that is inserted into the shade guide color matching aid tool.

[0138] The shade guide color matching aid tool 1 of the above embodiment can be set as a set with a rod-equipped artificial tooth shade guide.

[0139] In the present specification, even in the case where a disclosed component is described as either singular or plural, or is described without being limited to either singular or plural, unless otherwise explained in the context, the component can be either singular or plural.

[0140] It should be understood that, although the present application has been described with reference to detailed embodiments, various changes or modifications can be made in the present specification, according to the disclosed matters, by those skilled in the art. Therefore, the scope of the embodiments of the present application is intended to include any changes or modifications.

[0141] According to the present application, it is possible to provide a shade guide color matching aid tool that exhibits excellent shape suitability for various types of rod-equipped artificial tooth shade guides, and functions as a highly versatile gingival color shade guide holder.

Claims

1. A color matching aid for a shade guide, which is used to hold a shade guide for artificial teeth with a bar, characterized in that, The color chart uses a hue matching aid that has the following features: The main body, the surface of which is gingival-colored; A cervical recess for contacting the cervical region of an artificial tooth with a bar-mounted artificial tooth shade guide; as well as The rod insertion port is used to insert the rod of the artificial tooth shade guide. The color matching aid for the color grading plate has a dislodgement suppression mechanism to prevent the color grading plate of the artificial tooth with a rod from falling off.

2. The color matching auxiliary tool for color charts according to claim 1, wherein, The rod insertion port is set at an angle relative to the main body. The detachment suppression mechanism consists of a rod insertion port.

3. The color matching auxiliary tool for color charts according to claim 2, wherein, A window is formed below the recess at the neck of the tooth.

4. The color matching auxiliary tool for color charts according to claim 3, wherein, It has multiple windows. Ribs are formed between adjacent windows on the back of the main body.

5. The color matching auxiliary tool for color charts according to claim 4, wherein, The number of windows is 3 to 6.

6. The color matching aid for a color chart according to any one of claims 2 to 5, wherein, The rod insertion port is set to be tilted at 1 to 5 degrees relative to the main body.

7. The color matching aid for a color chart according to any one of claims 2 to 5, wherein, The dimensions of the rod insertion port in the front-to-back direction are 0.4–1.2 mm.

8. The color matching aid for a color chart according to any one of claims 2 to 5, wherein, The rod insertion port has an expansion section that expands the dimensions in the front-to-back direction.

9. The color matching aid for a color chart according to any one of claims 1 to 8, wherein, A plurality of ribs are formed on the back of the main body. The shedding inhibition mechanism consists of a plurality of ribs.

10. The color matching auxiliary tool for color charts according to claim 9, wherein, Multiple ribs are configured to form narrow sections with decreasing intervals between them.

11. A method for colorimetry, wherein, The method for performing color matching uses a rod-mounted artificial tooth color matching plate inserted into the color matching plate of any one of claims 1 to 10 with a hue matching aid.

12. A set, wherein, The kit is a kit of color matching aids for color matching and artificial tooth color matching with a rod, as described in any one of claims 1 to 10.

Images