JP3234509U - Accidental ingestion / aspiration prevention device for crown - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tool for preventing accidental ingestion and aspiration of a crown, which can dramatically improve the trial fitting of a crown and the like and the safety of a mounting operation, and can easily and accurately remove a ring with an existing instrument.
SOLUTION: When a crown 10 is attached, accidental ingestion and aspiration of the crown are prevented. It is composed of a ring member 2 which is an annular shape long in the outer peripheral direction of the crown in a plan view, and has a brazing portion 3 formed in a concave shape so as to match the outer peripheral surface 10a of the crown, and the ring member is formed at the brazing portion. Is detachably fixed at a predetermined position on the crown, and floss is inserted through the ring member.
[Selection diagram] FIG. 11

Description

The present invention relates to a crown accidental ingestion / aspiration preventive device that is applied to a deciduous crown or a permanent crown to prevent accidental ingestion and aspiration when the crown is attached.

The crown, for example, the deciduous crown, has advantages such as stopping the progress of dental caries or protecting the alignment of permanent teeth by covering the deciduous teeth with silver teeth, and 100,000 teeth are used every year in Japan. In general, children (about 3 to 5 years old) have dental phobia, so there is a high risk of aspiration or aspiration when wearing a deciduous crown due to crying or body movement. The incidence of aspiration or aspiration is said to be about 0.01%.

Children and people with disabilities do not cooperate with dental treatment, so they are allowed to move, and elderly people who are bedridden, etc., have diminished motor function. The risk is high.

As a technique relating to this type of crown, for example, Patent Document 1 states that a damaged tooth is repaired without removing the buccal side and the lingual side surface, and the buccal side and the lingual side surface of the swaying tooth and the adjacent tooth are non-existent. A fixing prosthesis capable of covering an occlusal surface that does not come into contact with a functional cusp and a opposing tooth, and a method for manufacturing the fixed prosthesis are disclosed.
In addition, Patent Document 2 describes a large amount of injection-molded crowns and crowns made of mass-produced and colored acetal homopolymer resin, which is useful for the treatment of deciduous teeth and permanent molars having large caries lesions, especially in pediatric dentistry. The production method is disclosed.
Further, Patent Document 3 discloses a ready-made crown to be placed on a permanent tooth or a molar tooth of a deciduous tooth and a crown of a molar portion of the permanent tooth or a deciduous tooth which is excellent in technicality and aesthetics.

Japanese Unexamined Patent Publication No. 2011-15985 Special Table 2004-534568 Gazette Japanese Unexamined Patent Publication No. 5-146456

Here, an example of a conventionally used accidental ingestion prevention device is shown in FIG. In FIG. 13, the ring 200 constituting the accidental ingestion prevention device is brazed to the crown 10, and the ring 200 is brazed at one point in the brazing portion 201 as shown in FIG. As shown in FIG. 15, the ring 200 has, for example, vertical (length in the crown radial direction) A = 3.0 mm, horizontal (length in the crown circumferential direction) B = 3.5 mm, and thickness C = 0.6 mm (FIG. 14). (See) It is formed in a substantially circular shape with a size of about.

Since the ring 200 is brazed at the brazing portion 201 in a state where it is in point contact with the outer peripheral surface of the crown 10, it requires extremely advanced technology to braze the ring 200 to the crown 10 at one point. rice field. As shown in FIG. 15, the brazing range W of the brazing portion 201 is about 1.5 mm.
Further, when ligating the floss 4 to prevent accidental ingestion and aspiration as shown in FIG. 16, the ligation work of the floss 4 is detailed and complicated, and a considerable amount of time and man-hours have to be required.
Further, when removing the ring 200 from the crown 10 as shown in FIG. 17, it is difficult to grip the ring 200, and it takes time and effort.

In view of this situation, the present invention dramatically improves the safety of trial fitting of the crown, etc., and the safety of the mounting operation, and also removes the ring easily and accurately with the existing instrument. The purpose is to provide.

The crown accidental ingestion / aspiration prevention device according to the present invention is a crown accidental ingestion / aspiration prevention device for preventing accidental ingestion and aspiration of the crown when the crown is attached to the target tooth. It is composed of a ring member that is long in the outer peripheral direction of the crown in a plan view and has a concavely formed brazing portion that is aligned with the outer peripheral surface of the crown. The ring member is detachably fixed at a predetermined position on the crown, and the floss is inserted through the ring member.

According to the present invention, for example, the safety when wearing a risky crown can be dramatically improved, and the accidental ingestion prevention device can be easily removed with the existing device. It is easy to manufacture and does not cost much to manufacture. In addition, not only does the accident rate of accidental ingestion and aspiration approach 0%, but it also reduces the mental burden on the surgeon even in normal medical care.

It is a perspective view which shows the example of the deciduous crown which concerns on embodiment of this invention. It is a perspective view which shows the state at the time of wearing the deciduous crown which concerns on embodiment of this invention. It is a perspective view which shows the state of the pharynx of a child which concerns on embodiment of this invention. It is a perspective view which shows the state of the local anesthesia which concerns on embodiment of this invention. It is a perspective view which shows the state at the time of mounting the rubber dam which concerns on embodiment of this invention. It is each perspective view which shows the state of the vacuum preparation which concerns on embodiment of this invention. It is each perspective view which shows the state at the time of confirming the conforming state of the deciduous crown which concerns on embodiment of this invention. It is each perspective view which shows the state at the time of removal of the deciduous crown suitable for trial according to the Embodiment of this invention. It is a perspective view which shows the attached milk crown which concerns on embodiment of this invention. It is a perspective view which shows in the manner of the attachment state in the accidental ingestion / aspiration prevention tool and the crown by the embodiment of this invention. It is a top view which shows the attachment state in the crown of the accidental ingestion / aspiration prevention device in embodiment of this invention. It is an enlarged plan view of the aspiration / aspiration prevention device in the embodiment of the present invention. It is a top view which shows the attachment state in the crown of the accidental ingestion prevention device which is used conventionally. It is an enlarged view of each of the conventional accidental ingestion prevention devices. It is a top view which shows the attachment state in the crown of the conventional accidental ingestion prevention device in a manner. It is a figure which shows the example of the floss ligation process in the conventional accidental ingestion prevention device. It is a figure which shows the example of the ring removal process in the conventional accidental ingestion prevention tool.

Hereinafter, a preferred embodiment of the aspiration / aspiration preventive device for the crown according to the present invention will be described with reference to the drawings.
In this embodiment, an example of a device for preventing accidental ingestion of a ready-made deciduous tooth crown (deciduous crown) is taken. The present invention can be similarly applied to a permanent crown. Here, first, a schematic description will be given in relation to the deciduous crown and the procedure for attaching the deciduous crown. FIG. 1 shows an example of a deciduous crown 10, and the target age for wearing the deciduous crown 10 is 3 to 5 years old. Applies to severe deciduous dental caries. It is ready-made and each tooth type has 5 to 6 sizes. Usually, the target tooth to be attached is attached and detached several times to select the size. Generally, when the deciduous crown 10 is worn, it may be disliked, and the mouth may not be opened or the neck may be shaken, and the limbs may be fluttered, so that there is a high risk of accidental ingestion or aspiration.

As shown in FIG. 2, when the deciduous crown 10 is attached, there is a possibility that the deciduous crown 10 may slip off from the hand at the time of trial fitting of the deciduous crown 10 with respect to the target tooth 11 and when the deciduous crown 10 is attached, and there is a great risk of accidental ingestion or aspiration as it is. high.
Regarding the pharynx of children, as shown in FIG. 3, palatine tonsil enlargement 12 was observed in childhood, and when crying, severe mouth breathing occurred. It may be inhaled to the trachea. In addition, since cooperation cannot be obtained, it is conceivable to swallow something that has once fallen into the oral cavity, rather than taking it out on its own.

The flow of deciduous crown attachment is performed according to the following main procedure.
1) Surface anesthesia / local anesthesia 2) Rubber dam attachment 3) Abutment tooth formation 4) Milk crown trial suitability (for size selection)
5) Remove the rubber dam and repeat the trial fitting adjustment of the deciduous crown again to confirm the mating relationship, remove the deciduous crown, and repeat the trial fitting adjustment until the margin and the occlusal surface are in an appropriate state.
6) After the trial fitting is completed, join with cement.

Next, a specific procedure for attaching a deciduous crown will be described with, for example, an example of attaching a deciduous crown.
FIG. 4 shows a state of local anesthesia. Children may move abruptly and need to hold their head and trunk firmly during dangerous procedures.
FIG. 5 shows a state when the rubber dam 100 is attached. Usually, rubber dam 100 is used at the time of treatment to prevent accidental ingestion and aspiration.
At this time, a trial fitting of the deciduous crown 10 for diagnosing the occlusal relationship and the like is performed. In this case, as shown in FIG. 2, the rubber dam 100 is removed.
Further, as shown in FIG. 6, a vacuum 101 is prepared as a response in case of dropping out.

Next, FIG. 7 shows a state of confirmation of the conforming state of the deciduous crown 10.
FIG. 8 shows how the deciduous crown 10 is removed in a trial-suitable manner. In this case, the deciduous crown 10 is repeatedly attached and detached several times to be fitted. It is considered to be the most dangerous operation because it may slip off from your hand with too much momentum.
FIG. 9 shows the attached deciduous crown 10.
As outlined above, dentists perform daily clinical practice while feeling the risk of accidental ingestion and aspiration through medical treatment.

As described above, in the conventional accidental ingestion prevention device (see FIGS. 13 to 17), it requires extremely advanced technology to ligate the ring 200 to the crown 10 at the ligation portion 201, and also. The ligation work of the floss 4 was detailed and complicated, and it took a considerable amount of time and man-hours.
The present invention was devised in view of this background, and the gist thereof is the accidental ingestion and aspiration of the crown when the crown to be placed on the target tooth (explained in the example of the deciduous crown 10 in this example) is attached. It is a tool for preventing accidental ingestion and aspiration of the crown to prevent accidental swallowing. It has a brazed portion, and the ring member is detachably fixed at a predetermined position of the crown at the brazing portion, and floss is inserted through the ring member.

FIG. 10 schematically shows the attachment state of the accidental ingestion / aspiration prevention device 1 according to the present invention in the crown, that is, the deciduous crown 10. As shown in FIG. 11, the pewter / aspiration preventive device 1 is composed of a crown in a plan view, and in this example, an annular ring member 2 long in the outer peripheral direction of the deciduous crown 10, and is aligned with the outer peripheral surface 10a of the deciduous crown 10. The pewter portion 3 is formed in a concave shape so as to be formed, and the ring member 2 is detachably fixed to a predetermined position of the deciduous crown 10 by the brazed portion 3.
Further, the accidental ingestion / aspiration preventive device 1 is separated from the occlusal surface P of the deciduous crown 10 (target tooth 11) by about H = several mm, and the deciduous crown 10 is at a height position where it does not occlude with the opposing tooth of the target tooth 11. Is fixed to.

Regarding the specific shape and dimensions of the ring member 2, the ring member 2 preferably uses a metal wire having a thickness or diameter of about 0.6 mm (for example, stainless steel) as shown in FIG. 11 in the vertical direction (crown radial direction). It has dimensions of about A = 3.0 mm and lateral (length in the crown circumference direction) B = 5.5 mm.
With respect to the attachment position and posture of the aspiration / aspiration prevention device 1 in the deciduous crown 10, the ring surface of the ring member 2 is arranged horizontally, that is, substantially parallel to the occlusal surface P and on the inside of the cheek. Based on the deciduous crown 10 itself, it is arranged outside the deciduous crown 10.

The aspiration / aspiration preventive device 1 is fixed to a portion of the target tooth 11 (molar) closer to the mesial side, that is, closer to the anterior tooth by electric waxing. As shown in FIG. 12, the ring member 2 has a joint surface 3a formed in a concave shape so as to be aligned with the outer peripheral surface 10a of the deciduous crown 10, and is spaced apart from each other in the pewter portion 3. At least two points 3A and 3B set in the above are anchored to the deciduous crown 10. In this case, the brazing range W of the brazing portion 3 is set to about 3.0 mm (FIG. 11).

Regarding the attachment / detachment of the accidental ingestion / aspiration prevention device 1, since it is waxed mesially and horizontally with respect to the target tooth 11, its removal can be easily performed by using pliers or the like in the oral cavity after the deciduous crown 10 is attached. And it can be done accurately. At that time, since the floss 4 is present, accidental ingestion of the aspiration preventive device 1 does not occur even when the floss 4 is removed. After that, the waxed portion is polished in the oral cavity.

The accidental ingestion / aspiration prevention device 1 of the present invention is attached from the beginning when the deciduous crown 10 is shipped from the factory. When trying to fit the deciduous crown 10 to the target tooth 11, the deciduous crown 10 is repeatedly attached and detached to fit, but there is concern about accidental ingestion of the deciduous crown 10 because the floss 4 is applied to the accidental ingestion / aspiration preventive device 1. There is no. In that case, by attaching the accidental ingestion / aspiration prevention device 1 to the target tooth 11 (milk crown 10) at a suitable position and posture, it does not interfere with the wearing work of the milk crown 10, and it is appropriate and appropriate. It can be done smoothly.

Although the accidental ingestion / aspiration preventive device 1 is removed after the deciduous crown 10 is attached, the ring member 2 can be accurately removed because the binding strength of the ring member 2 to the deciduous crown 10 is set to be moderately weak. Since the floss 4 passes through the ring member 2 of the removed accidental ingestion / aspiration preventive device 1, accidental ingestion of the accidental ingestion / aspiration preventive device 1 can be prevented even after the removal.

In particular, in the accidental ingestion / aspiration prevention device 1 of the present invention, the width of the ring member 2, that is, the length B in the crown circumference direction is expanded to about 5.5 mm, so that the brazing portion 3 has two points 3A and 3B. It is brazed to the deciduous crown 10. By increasing the width of the ring member 2, the brazing work becomes much easier. Conventionally, as described above, since the ring 200 is brazed at the brazing portion 201 that makes point contact with the crown 10, an extremely advanced technique is required, but in the present invention, the brazing has become wider. Since the landing portion 3 is brazed at two points 3A and 3B, the brazing work can be facilitated.

Moreover, the accidental swallowing / aspiration prevention device 1 of the present invention has a joint surface 3a formed in a concave shape so as to be aligned with the outer peripheral surface 10a of the deciduous crown 10, and is in so-called surface contact with the deciduous crown 10. Since the ring member 2 is brazed at the landing portion 3, the quality of the brazing of the brazing portion 3 is improved. Further, by making surface contact with the joint surface 3a in this way, the ring member 2 can be held and performed without wobbling during the brazing work, and the brazing work can be carried out smoothly and accurately.
Further, since the joint surface 3a is formed in a concave shape so as to be aligned with the outer peripheral surface 10a of the deciduous crown 10, the brazing portion 3 exactly hits the outer peripheral surface 10a of the deciduous crown 10, and the brazing work is also performed at this point. It can be accurate and easy.

Further, as the width of the ring member 2, that is, the length B in the crown circumferential direction increases, the inner hole 2a (see FIG. 11) expands in diameter, which facilitates the ligation work of applying the floss 4 to the ring member 2. It is possible to reduce the time and man-hours required for this. In this case, even a clumsy surgeon can easily perform the floss 4 ligation work, and even when a foreigner with a large hand hangs the floss 4, the floss 4 ligation work becomes easier.

As described above, according to the accidental ingestion / aspiration prevention device 1 of the present invention, the accidental ingestion of the milk crown 10 and the accidental ingestion / aspiration prevention device 1 itself can be completely prevented, and high safety can be ensured and guaranteed. .. Then, the use of the rubber dam 100, the vacuum 101, and the like can be omitted, and the time and man-hours in the work of attaching the deciduous crown 10 can be significantly reduced. In this way, the safety when wearing the risky deciduous crown 10 is dramatically improved, and the accidental ingestion prevention device can be easily removed with the existing device. It can be easily manufactured, its manufacturing cost is low, and it has advantages such as reducing the accident rate of accidental ingestion and aspiration to about 0% and reducing the mental burden on the operator even in normal medical care.

Although the present invention has been described above with various embodiments, the present invention is not limited to these embodiments and can be changed within the scope of the present invention.
As the scope of application of the present invention, it can be widely applied to severe dental caries of deciduous teeth, hypoplasia of permanent teeth, and same-day crown restoration in home dental care.

1 Accidental swallowing device, 2 Ring member, 3 Brazing part, 3a Joint surface, 4 Floss, 10 Milk crown, 10a Outer surface.

Claims (4)

A tool for preventing accidental ingestion and aspiration of the crown to prevent accidental ingestion and aspiration of the crown when the crown is attached to the target tooth.
It consists of a ring member that forms an annular shape that is long in the outer peripheral direction of the crown in a plan view.
It has a brazed portion formed in a concave shape so as to be aligned with the outer peripheral surface of the crown, and the ring member is detachably fixed at a predetermined position of the crown at the brazing portion.
An aspiration / aspiration preventive device for a crown, characterized in that floss is inserted through the ring member. The aspiration / aspiration prevention device for a crown according to claim 1, wherein the ring member is anchored to the crown at at least two points at the brazing portion. The accidental ingestion or aspiration of the crown according to claim 1 or 2, wherein the ring member has a length of 5.5 mm or more in the circumferential direction of the crown along the outer peripheral surface of the crown in a plan view. Preventive equipment. The aspiration of the crown according to any one of claims 1 to 3, wherein the ring member has a brazing range of 3.0 mm or more along the outer peripheral surface of the crown in a plan view. Anti-aspiration device.

Images