JPH0626257Y2 - Root canal length measuring needle - Google Patents
Root canal length measuring needleInfo
- Publication number
- JPH0626257Y2 JPH0626257Y2 JP1989072192U JP7219289U JPH0626257Y2 JP H0626257 Y2 JPH0626257 Y2 JP H0626257Y2 JP 1989072192 U JP1989072192 U JP 1989072192U JP 7219289 U JP7219289 U JP 7219289U JP H0626257 Y2 JPH0626257 Y2 JP H0626257Y2
- Authority
- JP
- Japan
- Prior art keywords
- root canal
- canal length
- length measuring
- reamer
- measuring needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Description
【考案の詳細な説明】 技術分野 本考案は、歯科治療に用いられる根管長測定針に関す
る。TECHNICAL FIELD The present invention relates to a root canal length measuring needle used for dental treatment.
従来技術 歯内療法における根管治療の困難さは、根尖周囲組織を
傷つけずに根尖まで確実に根管の拡大、清掃を行い、こ
れを緊密に充填する点にある。BACKGROUND ART The difficulty of root canal treatment in endodontic treatment is that the root canal is surely expanded and cleaned up to the apex without damaging the tissue around the apex, and the root canal is closely packed.
治療中に根尖孔を越えてリーマー、ファイル、ブロー
チ、根管充填材料等で根尖歯周組織を刺激することは好
ましくなく、このため根尖歯周組織の刺激を恐れて、器
具の挿入が不十分となったり、根尖部根管に清掃消毒さ
れない空隙を残すことは予後を不良にする原因となる。
したがって、根管治療を正しく行うためには、予め根管
の正確な長さを知っておく必要がある。During treatment, it is not preferable to stimulate the apical periodontal tissue with reamers, files, broaches, root canal filling materials, etc. over the apical foramen, and therefore, fear of irritation of the apical periodontal tissue, insertion of the device Insufficiency or leaving an uncleaned space in the apical root canal can lead to poor prognosis.
Therefore, in order to perform the root canal treatment correctly, it is necessary to know the exact length of the root canal in advance.
これまで臨床において根管長を知る方法として、測定針
（通常、リーマーまたはファイル）を根管に挿入し、術
者の手指の感覚による方法が知られている。Up to now, as a method for clinically knowing the root canal length, a method is known in which a measuring needle (usually a reamer or a file) is inserted into the root canal and the operator senses the fingers.
しかし、この方法によると、上顎切歯、犬歯、下顎小臼
歯等のように単純で太い根管で、しかも根尖が完成し
て、根尖狭窄部が明らかに触知できる症例ではほぼ触知
できるが、細く、根尖未完成歯や彎曲した根管では熟練
者でも確認が難しいという問題点がある。そのために根
管長を電気的に測定するものとして、特開昭６０−１７
４１４４号公報に記載されているように、根管内に、リ
ーマを測定針として挿入し、口腔粘膜に当接した片電極
との間に、例えば１ＫHz2と５ＫHz2の２つの周波数の交
流電圧を加え、根管長を検出するものも提案されてい
る。However, according to this method, it is almost palpable in cases in which the root apex is completed and the apical stenosis is clearly palpable, such as in the case of upper incisors, canines, lower bicuspids, etc. Although it can be done, there is a problem that it is difficult for even a skilled person to confirm with a thin, unrooted tooth and a curved root canal. Therefore, as a method for electrically measuring the root canal length, JP-A-60-17 is used.
As described in 4144 JP, the root canal, and inserting the reamer as the measurement needle, between the abutting piece electrodes in the oral mucosa, for example, 1 KHz 2 and 5 KHz 2 of two frequencies of the alternating voltage In addition, a method of detecting the root canal length has been proposed.
第３図は、手用のリーマ又はファイルを用いて根管長を
電気的に測定する一例を説明するための図で、図中、２
０はリーマ又はファイルホルダー、３０はリーマ又はフ
ァイル、４０は歯、４１は根管、４２は歯肉で、周知の
ように、リーマ又はファイル３０は、導電性の針部材３
１、刃部３２、ラバーストッパー３３、把持部３４等か
ら成り、該手用のリーマ又はファイルを用いて根管長を
測定する場合、ラバーストッパー３３と把持部３４の間
をホルダー２０の電極部２１で保持しリーマ又はファイ
ルを一方の電極とする電気的根管長測定の際の一方の電
極の信号取り付け部としている。この電気的な根管長の
測定により根管長が出たらラバーストッパー３３を移動
させて、根管長をリーマに移して読んでいた。FIG. 3 is a diagram for explaining an example of electrically measuring the root canal length using a manual reamer or file.
0 is a reamer or file holder, 30 is a reamer or file, 40 is a tooth, 41 is a root canal, and 42 is a gingiva. As is well known, the reamer or file 30 is a conductive needle member 3
1, a blade portion 32, a rubber stopper 33, a grip portion 34, and the like. When measuring the root canal length using the reamer or file for the hand, the electrode portion of the holder 20 is placed between the rubber stopper 33 and the grip portion 34. 21 is used as a signal attachment portion of one electrode when measuring the electric root canal length with the reamer or file used as one electrode. When the root canal length was obtained by this electrical measurement of the root canal length, the rubber root stopper 33 was moved to transfer the root canal length to the reamer for reading.
この時、臼歯の場合、口の開き方が問題となり、口があ
まり開かない人、女性等は口が小さく、なるべく2の
短いものを使用したい。従がって、1が短かくなり、
ラバーストッパー３３と把持部３４間の距離がなくなり
あつかいにくくなる。At this time, the case of molars, will be how to open the mouth is a problem, people who mouth is not very open, women, etc. mouth is small, we want to use as short as possible with 2. Therefore, 1 becomes shorter,
Since the distance between the rubber stopper 33 and the grip portion 34 is reduced, it becomes difficult to handle.
目的 本考案は、上述のごとき実情に鑑みてなされたもので、
リーマ又はファイルの長さが短かくても電気的根管長測
定に用いて使いやすい根管長測定用リーマ又はファイル
を提供することを目的としてなされたものである。Purpose The present invention has been made in view of the above-mentioned circumstances,
The purpose of the present invention is to provide a reamer or file for root canal length measurement that is easy to use for electrical root canal length measurement even if the length of the reamer or file is short.
構成 本考案は、上記目的を達成するために、一般に切削用の
刃部を有するリーマ又はファイル等の導電性の針部材か
ら成る根管長測定針において、前記導電性針部材の前記
刃部と反対側の端部において端面から所定の間隔を置い
て把持部を有することを特徴としたものである。以下、
本考案の実施例に基づいて説明する。In order to achieve the above-mentioned object, the present invention provides a root canal length measuring needle which is generally made of a conductive needle member such as a reamer or a file having a cutting blade, and the blade portion of the conductive needle member. It is characterized in that it has a grip portion at a predetermined distance from the end face at the opposite end portion. Less than,
An explanation will be given based on an embodiment of the present invention.
第１図は、本考案による根管長測定針の一実施例を説明
するための構成図で、該根管長測定針は通常、リーマ，
ファイル，ブローチ等の名称で呼ばれているもので、導
電性針部材１から成り、該針部材１の先端部に刃部２と
他端部に把持部３を有している。手作業による根管長測
定は、従来より周知の方法によって行うが、図示例の場
合、ラバーストッパーを用いずに、いきなり目盛から読
み取るようになっている。而して、本考案においては、
導電性の測定針１は刃部２と反対側の端部において端面
より所定の間隔Ｌを置いて把持部３が取り付けられてお
り、この所定間隔Ｌの間において第３図に示した測定用
電極２１が取り付けられるようになっている。FIG. 1 is a block diagram for explaining an embodiment of a root canal length measuring needle according to the present invention. The root canal length measuring needle is usually a reamer,
It is called by the name of a file, a broach, or the like, and is made of a conductive needle member 1, and has a blade portion 2 at the tip end portion and a grip portion 3 at the other end portion. The root canal length is measured manually by a conventionally known method, but in the case of the illustrated example, the root canal length is read immediately without using a rubber stopper. Thus, in the present invention,
The conductive measuring needle 1 has a gripping part 3 attached at a predetermined interval L from the end face at the end opposite to the blade part 2, and for the measurement shown in FIG. The electrode 21 is attached.
而して、電気的な根管長の測定により根管長が分かれば
その根管長を前述のようにラバーストッパーを用いてリ
ーマに移すようにしてもよいが、根管長をリーマに移し
かえる時、正確に測定しても寸法がずれることもあるの
でリーマからダイレクトに読み取れるように図示のよう
にマーキング４を施しておくとよい。If the root canal length is known from the electrical root canal length measurement, the root canal length may be transferred to the reamer using the rubber spatper as described above, but the root canal length is transferred to the reamer. At the time of changing, the dimension may deviate even if it is accurately measured. Therefore, it is advisable to provide the marking 4 as shown so that the reamer can directly read it.
第２図は、本考案による根管長測定針の一使用状態を示
す図で、図中、１０は他方の電極、４３は口唇で、周知
のように、導電性測定針１の先端部と電極１０との間の
電気抵抗値から根管の長さを測定するものである。FIG. 2 is a view showing one use state of the root canal length measuring needle according to the present invention. In the figure, 10 is the other electrode, 43 is a lip, and as is well known, the tip of the conductive measuring needle 1 and The length of the root canal is measured from the electric resistance value between the electrode 10.
効果 以上の説明から明らかなように、本考案によると、把持
部の外側に信号取り出し部を設けたので、測定針の全体
の長さを短くしても操作性が損なわれるようなことはな
く、従って、口を大きく開けない人の場合のように、小
さな空間しか得られなくとも測定針を容易に挿入して操
作することが可能となり、根管長の測定作業が非常に楽
になる。Effect As is clear from the above description, according to the present invention, since the signal take-out portion is provided outside the grip portion, the operability is not impaired even if the entire length of the measuring needle is shortened. Therefore, it becomes possible to easily insert and operate the measuring needle even if only a small space can be obtained, as in the case of a person who cannot open the mouth wide, and the work of measuring the root canal length becomes very easy.
第１図は、本考案による根管長測定針の一実施例を説明
するための構成図、第２図は、その使用状態を示す図、
第３図は、従来の根管長測定の概要を説明するための図
である。 １……根管長測定針、２……刃部、３……把持部、４…
…マーキング。FIG. 1 is a configuration diagram for explaining an embodiment of a root canal length measuring needle according to the present invention, and FIG. 2 is a diagram showing its use state,
FIG. 3 is a diagram for explaining an outline of conventional root canal length measurement. 1 ... Root canal length measuring needle, 2 ... blade part, 3 ... holding part, 4 ...
…marking.
Claims (1)
等の導電性の針部材から成り、該針部材に根管長を電気
的に測定する根管長測定器の一方の電極を接続する接続
部を有する根管長測定針において、前記導電性針部材の
前記刃部と反対側の端部において端面から所定の間隔を
置いて把持部を有し、前記端面から把持部までの間隔を
前記根管長測定器の電極の接続部とすることを特徴とす
る根管長測定針。1. An electrically conductive needle member such as a reamer or file having a cutting blade, and one electrode of a root canal length measuring device for electrically measuring a root canal length is connected to the needle member. In a root canal length measuring needle having a connecting portion, a gripping portion is provided at a predetermined distance from an end surface at an end portion of the conductive needle member opposite to the blade portion, and a distance from the end surface to the gripping portion is set. A root canal length measuring needle, which is used as an electrode connecting portion of the root canal length measuring instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989072192U JPH0626257Y2 (en) | 1989-06-19 | 1989-06-19 | Root canal length measuring needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989072192U JPH0626257Y2 (en) | 1989-06-19 | 1989-06-19 | Root canal length measuring needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH039714U JPH039714U (en) | 1991-01-30 |
| JPH0626257Y2 true JPH0626257Y2 (en) | 1994-07-20 |
Family
ID=31609914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989072192U Expired - Fee Related JPH0626257Y2 (en) | 1989-06-19 | 1989-06-19 | Root canal length measuring needle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0626257Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2280356A1 (en) * | 1974-07-30 | 1976-02-27 | Micro Mega Sa | REMOVABLE STOP DEVICE FOR DENTAL CHANNEL INSTRUMENTS |
-
1989
- 1989-06-19 JP JP1989072192U patent/JPH0626257Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH039714U (en) | 1991-01-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |