JP2006305324A - Fixing device for evulsion tooth, and washing and treatment method for evulsion tooth - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a means for washing and treating the crown of an evulsion tooth while protecting the surface of the root of the evulsion tooth. <P>SOLUTION: This fixing device for the evulsion tooth includes: a holding means for fixing the gingival part of the evulsion tooth; and a liquid reservoir part for holding a protective solution where the root of the evulsion tooth fixed to the holding means is immersed with the crown up. According to this washing method for the evulsion tooth, the evulsion tooth is fixed, the root of the fixed evulsion tooth is immersed in the protective solution, and the crown of the fixed evulsion tooth is washed. According to this treatment method for the evulsion tooth, the evulsion tooth is fixed, the root of the fixed evulsion tooth is immersed in the protective solution, and the crown of the fixed evulsion tooth is treated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an extraction tooth fixing device and a method for cleaning and processing an extraction tooth while fixing the extraction tooth.

  About 2 million patients who need to regenerate alveolar bone in dental treatment methods, and the spread of safe and simple treatment methods is strongly desired. However, current therapies include methods of collecting bone from the patient's pelvis and embedding it, and methods of collecting and culturing the patient's bone marrow cells, which are currently under development. There is a problem in terms of aspect.

  Therefore, the present inventors considered recycling the teeth (extracted teeth) that the patients themselves no longer need, and as an example, developed a method for regenerating the embedded alveolar bone by crushing and mixing with dental pulp. We have already had 5 treatments using this method. Recently, it has also been proposed to store the extracted tooth (for example, a tooth bank) and transplant it at a later date (delayed transplantation treatment). However, there has been almost no recycling of the extracted tooth so far, and even a method for making the extracted tooth recyclable has not been established yet.

Japanese Patent Application Laid-Open No. 9-308640 (Patent Document 1) discloses that at least a part of the root portion of the extracted tooth is molded and used to manufacture an artificial tooth root. However, there is no description of recycling the extracted tooth itself.
JP-A-9-308640

  In order to make the extracted tooth recyclable, at least the crown of the extracted tooth needs to be cleaned and processed, and during the cleaning and processing of the extracted tooth crown, the surface of the root of the extracted tooth is required. It needs to be protected. However, until now, there has been no known method or means for cleaning or processing the crown of the extracted tooth while protecting the surface of the root of the extracted tooth.

  Therefore, an object of the present invention is to provide a method and means for cleaning and processing a crown of an extracted tooth while protecting the surface of the root of the extracted tooth.

Means for achieving the object is as follows.
[1] Extraction tooth fixing device,
The apparatus comprising: gripping means for fixing the tooth neck of the extracted tooth; and a liquid reservoir for holding a protective liquid for dipping the root of the extracted tooth fixed to the gripping means up the crown.
[2] The apparatus according to [1], wherein the gripping means includes at least one plate-like member having an opening.
[3] The apparatus according to [1] or [2], wherein the bottom of the liquid reservoir is made of a detachable member.
[4] The extracted tooth fixed to the grasping means further includes a member (hereinafter referred to as an isolation member) for exposing the crown to the upper portion and isolating the liquid reservoir from the outside. ] The apparatus in any one of.
[5] The apparatus according to [4], wherein the separating member is an elastomer sheet and has a hole smaller than a tooth neck portion of the extracted tooth for penetrating the extracted tooth.
[6] The device according to any one of [1] to [5], which is used for cleaning and / or processing a crown and / or root of a fixed extracted tooth.
[7] Fix the extracted tooth,
Immerse the root of the fixed extraction tooth in a protective solution and clean the crown of the fixed extraction tooth.
How to clean the extracted teeth.
[8] The method according to [7], wherein the cleaning is performed so that a cleaning liquid for cleaning the crown is not mixed into the protective liquid.
[9] Fix the extracted tooth,
Immerse the root of the fixed extraction tooth in the protective solution and process the crown of the fixed extraction tooth.
Processing method for extracted teeth.
[10] The method according to [9], wherein the processing of the crown is performed so that a material used for the processing and / or a material generated by the processing is not mixed into the protective liquid.
[11] The method according to any one of [7] to [10], wherein the protective solution contains physiological saline.
[12] The method according to [11], wherein the protective liquid further comprises antibiotics and / or blood of a patient who had the extracted tooth.

  According to the present invention, the crown of the extracted tooth can be cleaned and processed while protecting the surface of the root of the extracted tooth, and the extracted tooth itself can be recycled.

Hereinafter, the present invention will be described in more detail.

[Extracted tooth fixing device]
The extraction tooth fixing device of the present invention (hereinafter also referred to as an extraction tooth fixing device)
It has a gripping means for fixing the tooth neck of the extracted tooth, and a liquid reservoir for holding a protective liquid for dipping the root of the extracted tooth fixed to the gripping means up the crown.

In order to recycle the extracted tooth, it is desirable that the periodontal ligament on the root surface is not damaged as much as possible. On the other hand, in order to recycle the extracted tooth, it is first necessary to clean and sterilize the crown exposed in the oral cavity. According to the extracted tooth fixing device of the present invention, the dental crown can be cleaned while immersing the root in the protective solution in the liquid reservoir to protect the periodontal membrane.
Conventionally, the initial cleaning, sterilization, and root processing such as root canal treatment at the time of tooth extraction have been performed while the extracted tooth is sandwiched with forceps. However, with this method, the hand holding the forceps is not free and is a one-handed operation, and it is difficult to perform sufficient cleaning and sterilization and processing. In addition, the teeth may come off from the forceps and fall to the floor.
On the other hand, according to the extracted tooth fixing device of the present invention, the extracted tooth can be fixed to the device and work can be performed using both hands, and sufficient cleaning sterilization and processing can be performed. Furthermore, it is possible to avoid the problem of dropping of the extracted tooth during the above operation.

  Below, the extraction tooth | gear fixing device of this invention is demonstrated based on drawing. However, the present invention is not limited to the following embodiments.

FIG. 1 (a) shows an example of the extraction tooth fixing device of the present invention, and FIG. 1 (b) shows a partial cross-sectional view of the device shown in FIG. 1 (a). FIG. 2 shows a schematic cross-sectional view of the extraction tooth fixing device shown in FIG.
As shown in FIG. 1A, the extraction tooth fixing device of the present invention has, for example, a cylindrical main body portion, and a liquid reservoir for holding a protective liquid for immersing the root of the extraction tooth in this main body portion. Part (see FIG. 2). And it has the holding means for fixing the tooth neck part of the extraction tooth | gear to the upper part of a liquid reservoir part (refer Fig.1 (a)).

  In the extraction tooth fixing device, the main body portion and the gripping means can be formed integrally, but considering the ease of introduction and replacement of the liquid into the liquid reservoir portion, they are constituted by separate members that can be separated from each other. It is preferable.

  The grip means is not particularly limited as long as it can fix the tooth neck of the extracted tooth. For example, the gripping means can be a plate-like member having an opening as shown in FIG. 1 (a), and the tooth neck of the extracted tooth is fixed by inserting the extracted tooth into the opening. be able to. Details of the gripping means shown in FIG. 1A will be described later.

  In the case where the main body portion and the gripping means are formed of separate members, for example, a protruding gripping means holding portion can be provided on a part of the inner periphery of the main body portion of the extraction tooth fixing device, for example. By supporting the outer periphery of the plate member by this holding portion, the plate member (gripping means) can be fixed to the main body portion. A method for fixing the gripping means in the embodiment shown in FIG. However, in the present invention, it is only necessary that the gripping means can be fixed to the main body part to the extent that there is no hindrance to operations such as cleaning and processing of the extracted teeth, and the fixing method is not limited to the above aspect and the following aspect.

  As shown in FIG. 3 (a), the gripping means has a structure in which two rod-shaped members are arranged in a bridge shape on the outer periphery of the main body, and a plurality of gripping means are provided on the outer periphery of the main body as shown in FIG. 3 (b). The thing of the structure which has arrange | positioned this rod-shaped member radially can also be used. Furthermore, as shown in FIG.3 (c), the thing of the structure which inserted the ring-shaped member from the lower part and was fixed to the main-body part can also be used.

  The grip means is for fixing the tooth neck of the extracted tooth. The cervical part is a part between the teeth and the gingiva, and the periodontal ligament may also exist on the surface of the cervical part. For this reason, in order to prevent damage to the periodontal ligament as much as possible, it is desirable to reduce the number of portions in contact with the grasping means as much as possible in the tooth neck and to suppress the fixing width. For example, when a plate-like member having the opening is used as the gripping means, it is preferable that the tooth neck is fixed by supporting the tooth neck side surface at at least two points of the edge. An example of this is shown in FIG. FIG. 4A is a perspective view (a state where the extraction teeth are fixed to the two plate-like members), and FIG. 4B is a cross-sectional view (a state where the two plate-like members do not have the extraction teeth). It comprises a gripping means composed of two plate-like members that are fixed with the tooth neck of the extracted tooth sandwiched therebetween, and a gripping means moving portion for moving the plate-like member. By operating the gripping means moving unit, the distance between the two plate-like members is adjusted, and the neck portion of the extracted tooth is fixed and released. When the gripping means composed of these two plate-like members is used, the fixed width can be reduced, and damage to the periodontal ligament can be minimized.

  In order to stably fix while reducing the number of places that come into contact with the gripping means, for example, the side surface of the cervical portion can be supported at three points on the edge of the opening. One or more protrusions may be provided at the opening edge to support the cervical side.

  FIG. 5 shows a specific example of a plate member having the opening. FIG. 5 (i) shows an example of molar gripping means, (ii) shows premolar gripping means, and (iii) shows an anterior tooth gripping means. In the embodiment shown in FIG. 5, two protrusions for supporting the side of the tooth neck are provided at the edge of the opening, and the side of the tooth neck is supported by one point of the two protrusions and the edge. It has become.

  Since there are various extracted teeth such as molars, premolars, anterior teeth, etc., the shape of the opening provided in the plate member is preferably determined according to the shape of the extracted tooth to be fixed. For example, by preparing one main body part and preparing a plurality of plate-like members having different shapes of openings, and using an optimal plate-like member according to the shape of the extracted tooth, various kinds of one main body part can be used. It becomes possible to fix the extracted tooth in the shape.

  In order to more securely fix the extraction tooth in the opening, an O-ring made of, for example, silicon rubber can be provided at the edge. As a result, the extracted tooth neck can be more stably fixed by the frictional force of silicon rubber.

  In the present invention, a plurality of plate-like members having openings can be used as the gripping means. An example is shown in FIG. The gripping means shown in FIG. 6 is composed of three plate-like members having openings with substantially the same shape. The plate-like member sandwiched between the two plate-like members has a notch portion as shown in FIG. 6, and an O-ring is provided in the opening portion.

  The gripping means shown in FIG. 6 is attached to the apparatus shown in FIG. As shown in FIG. 1 (b), the apparatus shown in FIG. 1 (a) has a cylindrical holding means pressing portion between a main body portion and a bottom portion (detachable) of a liquid reservoir portion described later. The gripping means can be fixed by sandwiching the gripping means between the gripping means pressing portion and the gripping means fixing protrusion provided on the main body.

  As shown in FIG. 1B, an O-ring moving portion is inserted into a notch portion of the plate-like member sandwiched between two plate-like members, and an O-ring is sandwiched at the tip portion thereof. . The O-ring moving part can be configured to be screwable, for example. As a result, after fixing the gripping means as described above, the O-ring moving part is screwed in so that the O-ring sandwiched by the tip part can be pushed out toward the inside of the opening. By adjusting this push-out amount, it is possible to adjust the fixed state of the extraction teeth inserted into the gripping means opening.

  As shown in FIG. 2 and FIG. 4 (b), the extracted tooth fixing device of the present invention is a liquid for holding a protective liquid for raising the crown and immersing the root of the extracted tooth fixed to the gripping means. It has a reservoir (liquid reservoir).

  Although the bottom part of the said liquid reservoir part can also be comprised integrally with a main-body part (refer Fig.1 (a)), it is preferable to consist of a detachable member. For example, when transplanting a large extracted tooth such as a molar to an anterior tooth or the like, the root is usually cut to adjust the size and protect the nerve of the lower jaw. In addition, root canal treatment (root treatment) may be performed on the extracted tooth. Here, if the bottom of the liquid reservoir is detachable, the extracted tooth is fixed to the extracted tooth fixing device of the present invention and the crown is washed, and then the bottom is removed to remove the protective liquid, and then the device By reversing the upper and lower sides, as shown in FIGS. 7 and 8, while the extraction teeth are fixed to the extraction tooth fixing device of the present invention, the above-mentioned root root cutting and root canal processing can be easily performed. It can be carried out. The bottom portion can be formed of a member that can be screwed and fixed to the main body portion, for example. In order to protect the crown when processing the roots with the device upside down, use a lid to cover the upper surface of the device that is open (the bottom when the device is turned upside down) You can also.

  As the protective liquid filled in the liquid reservoir, for example, physiological saline can be used. Furthermore, it is preferable that the protective liquid contains antibiotics and / or blood of patients who had extracted teeth. Known antibiotics can be used as the antibiotic. Although the antibiotic concentration in a protective liquid is not specifically limited, For example, it can be set as 1-20 mass%. Moreover, it is preferable to add the patient's blood to the protective solution in order to supply nutrients to the cells present in the periodontal ligament and pulp and to maintain the cell activity. Although the density | concentration of the patient's blood in a protective liquid is not specifically limited, For example, it can be set as 1-50 mass%.

  The extraction tooth fixing device of the present invention can be made of a known material. However, as described above, the protective liquid to be filled in the liquid reservoir may contain antibiotics or patient blood, and is washed with, for example, an alcohol solution (for example, 70 to 80% aqueous alcohol solution) after use of the apparatus. Since it may be performed, it is preferable to produce it from the material which has corrosion resistance. Moreover, in order to observe the state of the extraction tooth during work, it is preferable to make it from a transparent material. Considering the above points, it is preferable to use transparent polypropylene, transparent tempered glass, transparent polycarbonate, transparent acrylic resin, etc. in order to produce the extraction tooth fixing device of the present invention. The extraction tooth fixing device of the present invention can be manufactured using a known molding method.

  The extracted tooth fixing device of the present invention may further include a member (isolating member) for separating the liquid reservoir from the outside by exposing the crown to the extracted tooth fixed to the gripping means. Thereby, it can avoid that a protection liquid is contaminated at the time of washing | cleaning of a crown, and a process. For example, as shown in FIG. 9, the isolation member may be an elastomer sheet having a hole for allowing the extracted tooth to pass therethrough. As the material of the isolation member, natural rubber latex, viton rubber (Teflon), or the like can be used. In order to fix the extracted tooth stably, it is preferable that the hole provided in the isolation member is smaller than the tooth neck of the extracted tooth.

FIG. 10 shows an example of a device equipped with the isolation member.
As shown in FIG. 10, the isolation member can be used by covering the upper surface of the main body of the extraction tooth fixing device of the present invention. At this time, by using a lid (frame member) having an opening as shown in FIG. 10, the isolation member can be easily and firmly fixed to the apparatus.

  FIG. 11 shows another example of a device equipped with the isolation member. As shown in FIG. 11 (a), the isolation member can be used by covering the upper surface of the main body of the extraction tooth fixing device of the present invention (device having gripping means composed of two plate-like members). At this time, by using a rubber pressing ring having an opening, the isolation member can be easily and firmly fixed to the apparatus as shown in FIG.

  FIG. 12 shows an exploded view (part diagram) of the extraction tooth fixing device of the present invention having gripping means composed of two plate-like members. From above, a pressing ring for fixing a latex rubber sheet as a separating member, a latex rubber sheet, a fixing part including a gripping means, a packing for maintaining confidentiality between the fixing part and the container body, and a container body . The fixing part can be fixed by screwing the container body.

  As described above, the extracted tooth fixing device of the present invention can be used for cleaning and / or processing the crown and / or root of a fixed extracted tooth.

  For example, the extracted tooth is subjected to processing such as sterilization and polishing of the crown surface. The sterilization can be performed by a known method using iodine or the like. The polishing is performed, for example, to remove bacteria mixed in the uneven portion of the crown. In transplanting the extracted tooth into a patient, the tooth is ground to an appropriate size in accordance with the patient's engagement and the like. The extraction tooth fixing device of the present invention can be suitably used for such processing. Furthermore, the extraction tooth fixing device of the present invention can easily process the root while fixing the extraction teeth by turning the device upside down. Examples of tooth root processing include the above-described tooth root cutting and root canal treatment.

  Further, the extraction tooth fixing device of the present invention can be stored and transported in a state where the liquid reservoir is filled with a protective liquid and the upper part is sealed with a sealing material.

[How to clean the extracted teeth]
The present invention further includes
Fix the extracted teeth,
Immerse the root of the fixed extraction tooth in a protective solution and clean the crown of the fixed extraction tooth.
The present invention relates to a method for cleaning extracted teeth.

  The extracted tooth fixing device of the present invention described above can be used for the extracted tooth cleaning method of the present invention. At that time, by using the isolation member, it is possible to avoid that the cleaning liquid for cleaning the crown is mixed into the protective liquid at the time of cleaning the crown. The tooth crown can be washed by a known method.

[Processing of extracted teeth]
The present invention further includes
Fix the extracted teeth,
Immerse the root of the fixed extraction tooth in the protective solution and process the crown of the fixed extraction tooth.
The present invention relates to a method for processing extracted teeth.

  The extracted tooth fixing device of the present invention described above can be used in the extracted tooth processing method of the present invention. At that time, by using the isolation member, it is possible to avoid the material used for processing and / or the material generated by the processing from being mixed into the protective liquid during the processing of the crown. The processing of the extracted tooth is as described above.

  ADVANTAGE OF THE INVENTION According to this invention, a dental crown can be wash | cleaned / processed, protecting the periodontal membrane of a tooth root surface, and the reusable extraction tooth | gear can be obtained. Furthermore, it is possible to process the root by fixing the extracted tooth to the extracted tooth fixing device of the present invention. The extracted tooth cleaned and processed according to the present invention can be used after being pulverized, and the pulp can be collected from the extracted tooth after cleaning and processing. Furthermore, the extracted teeth cleaned and processed according to the present invention can be stored (for example, frozen) and transplanted to the patient at a later date.

  The present invention is useful in the field of dentistry.

FIG. 1 (a) shows an example of the extraction tooth fixing device of the present invention, and FIG. 1 (b) shows a partial cross-sectional view of the device shown in FIG. 1 (a). The schematic sectional drawing of the extraction tooth | gear fixing device shown in FIG. 1 is shown. An example of a gripping means is shown. An example of a gripping means is shown. The specific example of the plate-shaped member which has an opening part is shown. An example of a gripping means in which a plurality of plate-like members having openings is combined is shown. An example is shown in which the root is processed while the extracted tooth is fixed to the extracted tooth fixing device of the present invention. An example is shown in which the root is processed while the extracted tooth is fixed to the extracted tooth fixing device of the present invention. An example of an isolation member is shown. An example of the apparatus which mounted | wore with the isolation member is shown. An example of the apparatus which mounted | wore with the isolation member is shown. The exploded view of the extraction tooth | gear fixing device of this invention is shown.

Claims (12)

An extraction tooth fixing device,
The apparatus comprising: gripping means for fixing the tooth neck of the extracted tooth; and a liquid reservoir for holding a protective liquid for dipping the root of the extracted tooth fixed to the gripping means up the crown. The apparatus according to claim 1, wherein the gripping means includes at least one plate-like member having an opening. The apparatus according to claim 1, wherein the bottom of the liquid reservoir is made of a detachable member. The extracted tooth fixed to the grasping means further includes a member (hereinafter referred to as an isolation member) for exposing the crown from the outside and isolating the liquid reservoir from the outside. The device according to item. The apparatus according to claim 4, wherein the isolation member is an elastomer sheet and has a hole smaller than a tooth neck portion of the extraction tooth for penetrating the extraction tooth. Device according to any one of the preceding claims, used for cleaning and / or processing the crown and / or root of a fixed extracted tooth. Fix the extracted teeth,
Immerse the root of the fixed extraction tooth in a protective solution and clean the crown of the fixed extraction tooth.
How to clean the extracted teeth. The method according to claim 7, wherein the cleaning is performed so that a cleaning liquid for cleaning the crown is not mixed into the protective liquid. Fix the extracted teeth,
Immerse the root of the fixed extraction tooth in the protective solution and process the crown of the fixed extraction tooth.
Processing method for extracted teeth. The method according to claim 9, wherein the crown is processed so that a material used for the processing and / or a material generated by the processing is not mixed in the protective liquid. The method according to any one of claims 7 to 10, wherein the protective liquid contains physiological saline. The method of claim 11, wherein the protective liquid further comprises antibiotics and / or blood of a patient who had the extracted tooth.

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