JP4587235B2 - Dental color guide holder - Google Patents

Description

The present invention relates to a dental color guide holder that is used when a dentist or dental technician determines the color tone of an artificial tooth or a crown restoration material in a dental field.

In order to restore damaged or lost teeth, restorations are often used today to fill. These dental composite materials treat and replace the tissue of the damaged tooth portion. In addition, certain restorations such as crowns, bridges, transplants, and dentures are restored using artificial materials and prosthetic materials (restoring materials) that are appropriately secured in the oral cavity. In the treatment and treatment as described above, a dentist selects a proper color using a dental color guide to prepare a restoration material that matches the color tone of the tooth or adjacent teeth and restore the tooth. In general, one appropriate dental color guide is selected from among different dental color guides, and a restoration material of the same color is used. This dental color guide is held adjacent to the teeth to allow selection of a dental color guide having a color that best matches the color of the patient's teeth. Once a guide is selected, the type of guide allows the dentist to select an appropriately colored restoration material.

Some conventional dental tone guides are formed in a tooth mold and have a handle to hold the tone guide in a position adjacent to the patient's teeth, or many wires or chain-like members. Is passed through a hole formed in the handle of the color guide so that the color guides do not vary and can hold the desired individual color guides. However, when comparing the color of one color guide with the color of the other color guide, both hands are usually required.

Some conventional dental tone guides also have a holder with a number of guide receptacles arranged in a row. Each guide receiver is configured to store the color guides in a replaceable manner so that a portion of the color guide protrudes on the holder and can be visually recognized. The dentist can use one hand to support the holder in a position adjacent to the patient's teeth so that multiple color guides can be observed simultaneously (so that they can be better seen when needed) One or more guides can also be removed from the holder). However, color guides that can be incorporated into the holder can only be held by limited types of guides. Even if larger holders with additional guide receivers are provided, if the larger holders are in the way or if you do not need as many color guides when selecting color guides, I feel inconvenience in handling.

In addition, some types of conventional dental color guides are used only with a dental color guide with a handle, or by inserting the handle of a dental color guide with a handle into a holder. This is to prevent breakage at the time of sale / transportation, and a dental color guide with a handle is inserted into the patient's mouth to judge the color tone. When the crown restoration material was actually installed in the oral cavity, the color tone of the natural tooth did not match. In addition, when testing engineered artificial teeth or crown restoration materials as dental color guides with handles, they were compared with those placed on holders or directly compared with artificial teeth with handles. In fact, when this was actually installed in the oral cavity, the color tone of natural teeth sometimes did not match.

Also, some types of conventional dental color guides have a space between the dental color guides with handles or between the dental color guides with handles and the holder, so that the color tone behind them and the color of the handle part, etc. When reflecting the color tone in the oral cavity of the patient, it is difficult to determine the correct color tone due to the color contrast effect, and there is a problem that an error occurs.

Also, some conventional dental color guides are often in the shape of or close to artificial teeth, covering the entire missing tooth when compared to natural teeth in the oral cavity, Compared to adjacent teeth or compared to missing teeth, the tone was judged and the restoration material to be filled was selected. However, it was only possible to cover the entire missing tooth and compare the color with the adjacent tooth or compare with the missing tooth. It is required to compare with the tooth to be restored while making up for the missing part.

In addition, certain conventional dental color guides are equipped with a gingival color on the tooth neck so that they can be compared in the same environment as natural teeth, reducing the illusion and error, and reducing the color tone of artificial teeth and natural teeth. The restoration material to be filled was selected. However, even if a gingival color is provided in the cervical region, there is an individual difference in the gingival color and it is difficult to say that the same environment has been obtained. Furthermore, when compared with a missing tooth, the error could not be reduced even if it had the same shape as an artificial tooth or a natural tooth.

In addition, some conventional dental color tone guides, called indicators, are affixed to disk-like or table-like plates, and when judging the color tone in the oral cavity, check the color tone adjacent to natural teeth, etc. I can't. Furthermore, since the color tone of the plate is inappropriate, the color tone cannot be confirmed in the oral cavity.

Also, some conventional dental color tone guides have artificial tooth shapes made from multiple layers, so they did not give satisfactory color tone even when restored with a restoration material of the selected color tone. . Since the color of the restoration material filled changes depending on the size and depth of the natural tooth defect, the restoration material could not be selected in consideration of the defect size and depth.

Furthermore, since the conventional dental color tone guide has an artificial tooth shape formed from a plurality of layers, when repairing with two types of restoration materials having different color tones, after building up the first color restoration material, The color tone could not be confirmed on the way and often relied on the operator's feeling.

Furthermore, as a recent color tone confirmation method, instrumental colorimetry is performed, but since this method has a wide colorimetric range, even if it can measure healthy teeth and artificial teeth, the missing part When is large, color measurement is impossible. Even if the color measurement can be performed more accurately, the color measurement by the instrument has not reached the level of a skilled technician.

Furthermore, the holder is designed to hold only a dedicated dental color guide. However, because the vintage halo shade guide, which is standard in the dental field, could not be held at the same time, the surgeon can either hold it with a different holder or manually hold the shade guide when checking with the standard product. And had to compare with both hands.

JP 2007-014375 describes an invention of a dental shade guide holder, which can hold a plurality of dental shade guides in a stable state and is a dental shade. Provided is a dental shade guide holder capable of minimizing the area of the surrounding gingival part such as a patient's adjacent tooth and the lip which are blocked by a guide or the like. The specification is provided with a handle portion projecting opening 1d. As in the present invention, the handle portion of the shade guide has a through hole that leads from the inside of the holder to the outside.
In US5257931, a dental shade guide is described, and in FIG. 8, a through hole of the dental shade guide holder is described. However, this through-hole is not a through-hole into which the handle of the dental color guide is inserted, but a brace gap called a brace.
JP 2001-8951 A JP 2007-014375 A US Pat. No. 5,257,931

With the dental color guide of the present invention, not only the color tone compatibility with the adjacent teeth, but also the color tone alignment with the normal part of the tooth having a missing part can be accurately performed, and the object is not affected by the color tone of the peripheral part. Accurate color matching with the tooth portion can be easily performed. In particular, it is possible to perform color matching in consideration of the depth of the restoration portion.
When the holder of the present invention is used, various color guides, for example, the color guide of the present invention and the shade guide of vintage halo (manufactured by Matsukaze Co., Ltd.) can be held at the same holding height and held in the same holder. Color tone guides can be used more effectively.

The present invention provides a dental color guide that can easily and accurately adjust the color tone of a patient's teeth and a dental restoration after loading. In particular, not only the color tone compatibility with the adjacent teeth, but also the color tone matching with the normal part of the tooth having the defective part can be accurately performed, and the color matching with the target tooth part can be accurately performed while considering the color tone of the peripheral part. An object is to provide an easy dental color guide. It is another object of the present invention to provide a dental color tone guide capable of color tone adjustment considering the depth of the restoration part.

Conventional dental color guide holders are designed to hold only a dedicated dental color guide. However, because the vintage halo shade guide, which is standard in the dental field, could not be held at the same time, the surgeon can either hold it with a different holder or manually hold the shade guide when checking with the standard product. And had to compare with both hands.

The present invention relates to a dental color guide having a guide part and a handle part used for evaluating the color tone compatibility between a restoration material and a natural tooth to be restored, and is either a longitudinal or horizontal length of the guide part. The present invention relates to a dental color guide characterized in that the thickness is about half the width of a natural tooth to be restored. Further, the present invention relates to a dental color guide having a guide part and a handle part used for evaluating the color tone compatibility between the restoration material and the natural tooth to be restored, either in the vertical or horizontal direction of the guide part. The length of the tooth is about half of the width of the natural tooth to be restored, and the thickness of the guide portion is graded along the longer direction of either length or width It relates to a color guide. Specifically, in the present invention, the guide portion is constituted by a color sample member held in a cell integrally formed at the tip portion of the color sample member or the handle portion. It relates to a color guide. More specifically, the color sample member has a shorter length of 2 to 6 mm, a longer length of 7 to 15 mm, and a longer length of either the vertical or horizontal length. The above-mentioned dental color guide in which the thickness gradient formed along the thickness continuously changes from 0 to 3.0 mm to 1.0 to 7.0 mm. Furthermore, this invention relates to said dental color tone guide which provided the scale which displays the thickness of a color sample member on the side surface of a guide part.

The present invention relates to a dental color guide holder for holding a dental color guide having a handle. The dental color guide holder has a hole into which a plurality of dental color guides are inserted, and has a through hole at the bottom of the hole. A dental color guide holder characterized in that a means for fixing the handle is provided on the wall surface of the dental color tone.
The present invention is a dental color guide holder characterized in that means for fixing a handle by providing pressers alternately projecting on the upper, middle and lower portions are provided on the wall surface of the hole.
The present invention relates to a dental color guide holder holding a dental color guide having a handle, and the colorless and transparent guide used by the dental color guide for evaluating the color compatibility between the restoration material and the natural tooth to be restored. Part and a colorless transparent handle part, the guide part is provided with a cell filled with a restoration material actually used as a color sample member, the dental color guide holder has a hole into which a plurality of dental color guides are inserted, A dental color guide holder having a through hole at the bottom of a hole and provided with means for fixing a handle on a wall surface of the hole.

The dental color guide of the present invention is characterized in that it is much smaller than the conventional one in which the width of the color sample member is almost the same as the tooth to be restored, which is not conceivable by common sense. Yes, by applying the dental color guide of the present invention on the restoration portion of the tooth that needs to be restored because it has discoloration or a defect, the color tone of the guide portion and the tooth can be compared more accurately than before. In other words, by placing the guide part on the discolored or missing part, it can be compared with the normal part while covering the discolored or missing part that interferes with the evaluation of color compatibility, so that the normal part can be read accurately. it can. Furthermore, the dental color guide of the present invention is characterized in that the length of either the vertical or horizontal length of the guide is reduced by about half of the width of the natural tooth, and the thickness of the guide portion, specifically the color constituting the guide portion. The gradient is provided in the vertical or horizontal direction so that the thickness of the sample member continuously changes. Accordingly, the guide portion has various thickness portions therein, and a thickness portion corresponding to the defect portion to be repaired can be selected and used for color adjustment. Since the color tone of the restoration material used for the portion to be restored can be determined in consideration of the thickness to be used in this way, the color tone compatibility after the actual restoration can be improved compared to the conventional one. . The change in thickness preferably has a linear slope.
In the above description, the guide portion may be the color sample member itself, but may be composed of a color sample member and a cell filling it as will be described later. In the dental color guide of the present invention, the thickness is displayed on the side surface of the guide portion along the thickness gradient of the guide portion so that the thickness can be seen at a glance as shown in FIG. A scale may be attached.

The dental color tone guide of the present invention comprises a guide portion and a handle portion. The handle portion constitutes a part thereof so that a user such as a dentist can easily handle the dental color guide. The handle portion is preferably colorless and transparent so as not to interfere with the evaluation of color tone compatibility, and is preferably made of the same material as the color sample member. For example, the handle portion is molded using a plastic such as an acrylic resin or a styrene resin. The width, length, and thickness of the handle portion are not particularly limited as long as they are easy to handle by the user and can be held by the holder, but may be the same as or equivalent to the width of the guide portion. preferable. The length is not particularly limited and may be selected from the viewpoint of handleability, and may be the same length as that of conventional products for similar purposes. By setting the width of the handle portion to be the same as that of the guide portion, the two color guide portions can be placed on the same plane at the same time as shown in FIG. 7, and the color tone compatibility of the tooth to be restored can be determined. In a preferred form of the handle part, it is integrated with the guide part. In such a form, a cell capable of holding the color sample member of the guide part is formed at the tip of the handle part (FIG. 1B). ). The cell is formed in an open shape so that the color sample member can be filled, and the cell depth is formed so that the filled color sample member can have a predetermined thickness and gradient as described above. Is done. Here, the “upper surface” means the surface side of the color sample member used for evaluating the color tone compatibility of the guide portion. Therefore, the size of the cell is formed so that the color sample member to be filled is the size specified in the present invention described above, and the thickness of the cell is not large enough to hold the color sample member. What is necessary is just to be as thin as possible in the range.

The guide portion is a portion to which color sample members of various colors are attached in the dental color guide, and is a portion that performs color tone matching with the target tooth. The guide portion of the present invention is usually composed of the above-described cell and a color sample member filled therein. In this case, the guide portion can be formed simply by filling a cell with a restoration material, which is an actually used composition prepared in various colors, and curing it. However, the guide part of the present invention can be constituted by a color sample member alone without using a cell. In this case, a color sample member is formed by using a molding die with a restoration material, which is an actually used composition prepared in various colors, and this is formed on the tip of the handle portion with an adhesive or the like. It can be created by attaching by any means.

The size of the color sample member is 2.0 to 6.0 mm, preferably 2.5 to 4.0 mm, more preferably 3.0 mm, the longer dimension in the longitudinal or lateral direction, and the longer dimension. Is 7.0 to 15.0 mm, preferably 8.0 to 12.0 mm, and more preferably 10.0 mm. Further, the color sample member has a thickness gradient along the longer length direction of the vertical or horizontal direction, and the thickness is 0 to 3.0 mm, preferably 0 to 2.0 mm, thicker on the thinner side. The thickness is 1.0 to 7.0 mm, preferably 1.5 to 4.5 mm. The color sample member is preferably made of a translucent material. Particularly preferably, a material having transparency equivalent to that of the composite filled in the restoration portion after confirmation of color tone compatibility is preferable. This semi-transparency is defined in the Japanese Dental Care Journal, 38 (1), p. The numerical value measured by the transparency measuring method described in 158-171 (1995) is 0.30 to 0.90, preferably 0.50 to 0.70, more preferably 0.50 to 0.65. Say. The material of the color sample member is preferably a material having the same color tone as the material to be filled after confirmation of the color tone compatibility, and more preferably the same material. More preferably, a material that is toned in consideration of the cavity shape after filling and the color tone of the restoration tooth is preferable. The material may be hard polyvinyl chloride, styrene resin, polycarbonate resin, acrylic resin, porcelain, or a mixture thereof, but vinyl acetate resin, acrylic resin, and polycarbonate resin are more preferable.

Another advantage derived from the configuration of the dental color guide of the present invention is that a restorative material that is actually used as a color swatch member can be used. Since restoration materials are usually made of expensive raw materials, there is a problem that the price of dental color guides increases when a large amount of restoration material is used as a color sample member, so the actual restoration material is not used, In many cases, an acrylic resin or the like is used as an alternative. If an alternative is used, even if a color tone that matches well with the target tooth can be selected at the color sample stage, an error in the color tone tends to occur when it is replaced with a practical restoration material. In the case of the dental color tone guide according to the present invention, since a small amount of material is used as the color sample member, an actual restoration material can be used without worrying about price increase.

Furthermore, the dental color guide of the present invention, when performing a layered repair with two kinds of restoration materials having different color tones, after building up the first layer of restoration material, before building up the second layer of restoration material, There is an advantage that it can also be used for confirming the color tone of the second-layer restoration material.

In the dental color guide of the present invention, it is convenient to perform color tone suitability evaluation by arranging a plurality of similar color tones in a holder, and the accuracy of color tone suitability evaluation is further improved. As such a holder, those similar to various commercially available holders provided with holes for inserting the handle portion of the dental color guide can be used. These types of holders are generally made specifically for the respective dental color guides, so that one holder can be used by inserting dental color guides from other manufacturers at the same time. I can't. For example, the guides of other manufacturers are too large to be inserted, and even if they are inserted, the height of the guide portion is uneven, making it difficult to adjust the color tone, and the inserted items are likely to fall.

Not only when the dental color guide of the present invention is used, but also when holding different types of dental color guides in one holder and performing color adjustment, for example, penetrate the bottom of the hole of each handle holding part of the holder. Use a hole that has a hole and a means for fixing the handle at three points by providing pressers protruding alternately from the left and right (or front and rear) directions on the upper, middle, and lower portions of the hole wall. Is convenient. An example of this is shown in FIG. When such a holder is used, various color guides, for example, the color guide of the present invention and the shade guide of vintage halo (manufactured by Matsukaze Co., Ltd.) can be held at the same holding height and held in the same holder. Color tone guides can be used more effectively. An example of the use of such a holder is shown in FIG.

Hereinafter, the present invention will be described more specifically with reference to examples.
Example 1 One embodiment of the dental color guide of the present invention is shown in FIG. FIG. 1A is a dental color guide which is cured by filling a portion of a cell 3 provided at the tip of the handle 2 with a restoration material composite to be a color sample member 4. The internal width of the cell is 3.0 mm, and the depth inside the cell has a gradient of 0.5 mm at the tip and 2.5 mm on the front handle side. The internal length of the cell is 10 mm. The handle portion molded into a single body including the cell is made of a colorless and transparent acrylic resin, and the wall thickness of the cell portion is 0.5 mm. FIG.1 (b) shows the whole handle | steering-wheel part before filling with a color sample member.

Example 2 FIG. 2 shows another embodiment of the dental color guide of the present invention in which the depth inside the cell in Example 1 is 0 mm at the tip. FIG. 2B shows the entire handle portion before filling the color sample member.

Example 3 FIG. 3 shows an example in which there is no cell in the handle part and the molded body of the color sample member is directly attached to the tip of the handle part.

Example 4 A method of using the dental color guide of the present invention when the cavity is an enamel layer such as a 1, 2, 3, or 5 grade cavity will be described with reference to FIGS. 5, 6 and 7 as an example. Restoration is performed in the following steps.
(1) A cavity is formed on the tooth surface as shown in FIG. 5, and the depth of the cavity is measured. The measuring method may use a jig or may be performed visually.
(2) The dental color guide of the present invention is held so as to cover the cavity (FIG. 6). By placing the dental color guide on the cavity to be filled, the color after filling is reproduced through the dental color guide.
(3) By comparing the color tone of the dental color guide that matches the depth of the cavity and the color tone of the restoration tooth, the dental color guide that best matches the tooth can be selected, and the corresponding restoration material can be determined. .
(4) When two dental color guides close to the color tone of the target tooth are selected, place two dental color guides on the restoration tooth side by side as shown in FIG. Adopt.
(5) The cavity is filled and repaired using the repair material thus selected.

Example 5 Using the dental color guide of the present invention as an example in the case where the cavity is a grade 4 cavity and the laminated cavity for enamel color is built on the dentin color in the case where the cavity is deep. 8, FIG. 9 and FIG. Restoration is performed in the following steps.
(1) A cavity is formed in the oral cavity as shown in FIG.
(2) In order to determine the dentin color, the dental color guide of the present invention is held on the cavity so as to cover the cavity as shown in FIG.
(3) By placing the dental color guide on the cavity to be filled, the color tone after restoration of the dentin color is reproduced through the dental color guide.
(4) It is preferable to check the dentin color tone on the dentin color itself rather than on the enamel color. However, when the dental color guide of the present invention is used, the dental color guide as shown in FIG. This can be achieved by using a color guide.
(5) Next, the color tone of the enamel color placed on the dentin color is confirmed. This may be performed in the same manner as in the fourth embodiment. First, the thickness of the enamel color is measured.

(6) The dental color guide of the present invention is held so as to cover the dentin color. By assigning the dental color guide on the dentin color to be filled, the color tone after filling is reproduced through the dental color guide.
(7) A matching restoration material is selected by comparing the color tone of the dental color guide according to the thickness of the enamel layer and the color tone of the tooth to be restored.
(8) When two dental color guides having similar colors are selected, two dental color guides are arranged side by side on the restoration tooth, and the more appropriate one is adopted.
(9) When the selection of each restoration material is completed, the restoration material is built up. In the construction of the dentin color composite material, the dental color guide is held so as to cover the dentin restorative material in consideration of the thickness of the enamel color even during the construction. By placing the dental color guide on the dentin portion to be filled, the color tone after filling is reproduced through the dental color guide.
(10) The dentin color is restored while checking the color tone after the build-up.
(11) In the restoration of enamel color, the color tone is confirmed once more when the enamel restoration material is filled. In order to perform the color tone reproducibility more accurately, the operations (5) to (8) are preferably performed once more.
(12) Filling is performed using a restoration material suitable for the color tone.

External view of the dental color guide of the present invention: (a) a dental color guide, (b) a handle portion of the dental color guide. External view showing another example of the dental color guide of the present invention in which the thickness of the tip portion of the color sample member having a thickness gradient is 0: (a) dental color guide, (b) dental color guide Handle part. FIG. 3 is an external view showing an example of a dental color guide in which the guide portion does not have a cell and the color sample member is directly attached to the tip of the handle portion. Example of a dental color guide in which the color sample member is provided with a scale indicating the thickness of each part: (a) The scale line is parallel to the length direction of the handle, (b) The scale line is in the length direction of the handle vertical. An example of a cavity formed. The schematic diagram which shows the usage method of the dental color guide in a color tone compatibility evaluation work. The schematic diagram which shows another usage method of the dental color guide in a color tone compatibility evaluation work (it uses two dental color guides in parallel). Another example of a formed cavity (4th class cavity with deep cavity). (A) Perspective view, (b) Plan view from X direction. The schematic diagram which shows the usage method of the dental color guide in the color tone compatibility evaluation operation | work in the case of the cavity restoration of FIG. (A) Perspective view, (b) Plan view from X direction. The schematic diagram which shows another usage method of the dental color guide in the color tone compatibility evaluation operation in the case of the cavity restoration of FIG. (A) Perspective view, (b) Plan view from X direction. An example of the holder which can be shared by the dental color guide of this invention and the conventional dental color guide. (A) Type 1 (b) Type 2 The schematic diagram which shows the condition which hold | maintained the dental tone guide to the holder of FIG.

Explanation of symbols

1: Dental color guide,
2: Handle portion of dental color guide,
3: Cell of handle part,
4: Color sample member,
5: Guide part,
6: Scale indicating the thickness of the color swatch,
7, 7 ': tooth to be restored,
8, 8 ′: formed cavity,
9: Dentin restoration material built on the cavity
10, 10 ': 3-point holding part of the holder,
11, 11 ': Three-point holding part of the holder,
12, 12 ': Three-point holding part of the holder,
13: Holder,
14: Different types of dental color guides,
15: Another dental color guide of different type.

Claims (1)

In a dental color guide holder holding a dental color guide having a handle,
The dental color guide has a colorless and transparent guide part and a colorless and transparent handle part used for evaluating the color compatibility between the restoration material and the natural tooth to be restored,
A cell for filling a restoration material actually used as a color sample member is provided in the guide portion,
The dental color guide holder has a hole for inserting a plurality of dental color guides,
A dental color guide holder having a through hole at the bottom of a hole, and means for fixing a handle on a wall surface of the hole.