JPH09276299A - Periodontal disease caecum measuring device - Google Patents

Periodontal disease caecum measuring device

Info

Publication number
JPH09276299A
JPH09276299A JP9123296A JP9123296A JPH09276299A JP H09276299 A JPH09276299 A JP H09276299A JP 9123296 A JP9123296 A JP 9123296A JP 9123296 A JP9123296 A JP 9123296A JP H09276299 A JPH09276299 A JP H09276299A
Authority
JP
Japan
Prior art keywords
periodontal disease
optical fiber
inspection head
end part
sac
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.)
Pending
Application number
JP9123296A
Other languages
Japanese (ja)
Inventor
Masataka Toda
田 昌 孝 戸
Shiro Yamazaki
崎 史 朗 山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP9123296A priority Critical patent/JPH09276299A/en
Publication of JPH09276299A publication Critical patent/JPH09276299A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To measure the presence and progressive state of a periodontal disease caecum in no contact by catching the reflected state from a part to be inspected of the light emitted from the light emitting means of an inspection head by the light receiving,means of the inspection head, and image-analyzing the state of the part to be inspected. SOLUTION: A gum and tooth having a periodontal, disease caecum are opposed to a mirror within an inspection head 11 through the horizontal opening 11a of the inspection head 11. The free, end part 14a of an optical fiber 14 is vertically arranged within the inspection head 11, a mirror 12 is opposed to the free end part 14a at an angle of about 45 deg., and an ultraviolet ray or infrared ray is emitted from a light source 22 to the base end part of the optical fiber 14. The free end part 15a of an optical fiber 15 is also vertically arranged within the inspection head 11, the mirror 12 is opposed to the free end part 15a of the optical fiber 15 at an angle of about 45 deg. to catch the reflected state from the part to be inspected. The base end part of the optical fiber 14 is opposed to a CCD camera 17, and the output is analyzed by an image processing device 18 and displayed on a TV monitor 19.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する利用分野】本発明は、歯周疾患盲嚢測定
装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring periodontal disease cecum.

【0002】[0002]

【従来の技術】歯周疾患盲の進行状態は知るためには、
歯周に形成された盲嚢の深さを測定する必要がある。そ
のために使用される装置の一例が、例えば、特開平4−
12749号公報に開示されている。この装置において
は、盲嚢内に挿入される計測棒の先端部側面には、異な
った長さの複数の切欠部が平行に形成されており、各切
欠部の先端と先端部との間の距離が、段階的に大きくな
るようになっている。各切欠部には、光ファイバーから
光が導入されるようになっており、計測棒の先端部が盲
嚢内に挿入されたとき、どの切欠部の先端から光が出て
いるかを認識することにより、盲嚢の深さを測定するよ
うになっている。
2. Description of the Related Art In order to know the progress of periodontal disease blindness,
It is necessary to measure the depth of the blind sac formed in the periodontium. An example of an apparatus used for that purpose is, for example, Japanese Patent Laid-Open No.
It is disclosed in Japanese Patent No. 12749. In this device, a plurality of notches of different lengths are formed in parallel on the side of the tip of the measuring rod inserted into the cul-de-sac, and the distance between the tip of each notch and the tip is However, it is becoming larger gradually. In each notch, light is introduced from an optical fiber, and when the tip of the measuring rod is inserted into the cul-de-sac, by recognizing which notch tip emits light, It measures the depth of the cecum.

【0003】[0003]

【発明が解決しようとする課題】ところが、上記した構
成においては、盲嚢の深さを正確に測定するためには、
計測棒の先端部が完全に盲嚢内に挿入されることが必要
であるが、当該挿入が完全になされたか否かは、患者の
反応を見て判断することになるので、患者にとっては苦
痛となる。
However, in the above configuration, in order to accurately measure the depth of the cecum,
It is necessary for the tip of the measuring rod to be completely inserted into the blind sac, but whether or not the insertion is completely made depends on the reaction of the patient and is therefore a pain for the patient. Become.

【0004】それ故に、本発明は、かかる不具合のない
歯周疾患盲嚢測定装置を提供することを、技術的課題と
するものである。
[0004] Therefore, an object of the present invention is to provide a periodontal disease cul-de-sac measuring apparatus free from such a problem.

【0005】[0005]

【課題を解決するための手段】上記技術的課題を解決す
るために請求項1記載の発明において講じた技術的手段
は、発光手段および受光手段を備えた検査ヘッドならび
に前記投光手段から照射された光の被検査部位からの反
射状態を前記受光手段を介して捉え、前記被検査部位の
状態を画像解析する解析手段を有する歯周疾患盲嚢測定
装置を有する歯周疾患盲嚢測定装置を構成したことであ
る。
In order to solve the above technical problems, the technical means taken in the invention according to claim 1 is irradiated from an inspection head having a light emitting means and a light receiving means, and the light projecting means. A periodontal disease cecal sac measuring device having a periodontal disease cecal sac measuring device having an analyzing means for capturing the reflection state of the reflected light from the inspected region via the light receiving means and performing image analysis of the state of the inspecting part. That is what I configured.

【0006】[0006]

【作用】上記した構成においては、被検査部位たる歯周
疾患盲嚢の反射状態を画像解析することにより、非接触
にて、歯周疾患の有無・進行状態を測定することができ
る。
With the above-mentioned structure, the presence or absence of periodontal disease and the state of progress thereof can be measured in a non-contact manner by image analysis of the reflex state of the periodontal disease cecal sac, which is the site to be inspected.

【0007】[0007]

【発明の実施の形態】以下、本発明に係る歯周疾患盲嚢
測定装置の一実施形態を添付図面にもとづいて説明す
る。
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the apparatus for measuring the periodontal disease blind sac according to the present invention will be described below with reference to the accompanying drawings.

【0008】図1および図2において、歯周疾患盲嚢測
定装置10は、検査ヘッド11を備える。検査ヘッド1
1の横側には、開口11aが形成されており、この開口
11aを介して、歯周疾患盲嚢50がある歯茎51およ
び歯52が、検査ヘッド11内のミラー12と対向して
いる。
In FIGS. 1 and 2, a periodontal disease blind sac measuring device 10 includes an inspection head 11. Inspection head 1
An opening 11a is formed on the lateral side of 1, through which the gums 51 and teeth 52 with the periodontal disease sac 50 face the mirror 12 in the examination head 11.

【0009】検査ヘッド11内においては、光ファイバ
ー14の遊端部14aが鉛直をなすように配設されてお
り、ミラー12は、この遊端部14aに対して約45度
の角度をなして対向している。光ファイバー14の基端
部14bは、光源22から紫外線または赤外線を照射さ
れるようになっている。ミラー12、光ファイバー14
および光源22は、投光手段30を構成する。
In the inspection head 11, the free end 14a of the optical fiber 14 is arranged so as to be vertical, and the mirror 12 faces the free end 14a at an angle of about 45 degrees. are doing. The base end portion 14b of the optical fiber 14 is irradiated with ultraviolet rays or infrared rays from the light source 22. Mirror 12, optical fiber 14
The light source 22 and the light source 22 constitute the light projecting means 30.

【0010】検査ヘッド11内においては、また、光フ
ァイバー15の遊端部15aが鉛直をなすように配設さ
れており、ミラー12は、この遊端部15aに対して、
対物レンズ16を介して、約45度の角度をなして対向
している。ミラー12、対物レンズ16および光ファイ
バー15は、受光手段31を構成しており、後述するよ
うに発光物質61が投光手段30からの紫外線または赤
外線を吸収し、発光した可視光を受けるようになってい
る。
In the inspection head 11, the free end portion 15a of the optical fiber 15 is arranged so as to be vertical, and the mirror 12 is arranged with respect to the free end portion 15a.
They are opposed to each other at an angle of about 45 degrees via the objective lens 16. The mirror 12, the objective lens 16 and the optical fiber 15 constitute the light receiving means 31, and the light emitting substance 61 absorbs the ultraviolet ray or the infrared ray from the light projecting means 30 and receives the emitted visible light as described later. ing.

【0011】光ファイバー14の基端部15bは、接眼
レンズ16を介してCCDカメラ17に対向しており、
CCDカメラ17の出力は、画像処理装置18で解析さ
れ、TVモニタ19に表示されるようになっている。C
CDカメラ17、画像処理装置18およびTVモニタ1
9は、解析手段32を構成する。
The base end portion 15b of the optical fiber 14 faces the CCD camera 17 through the eyepiece lens 16,
The output of the CCD camera 17 is analyzed by the image processing device 18 and displayed on the TV monitor 19. C
CD camera 17, image processing device 18, and TV monitor 1
9 constitutes the analyzing means 32.

【0012】光ファイバー14および光ファイバー15
は、検査ヘッド11側において、所謂グースネックとい
われるフレキシブル変形チューブ20および把持部21
を通過しており、チューブ20の右端部および左端部
は、夫々、把持部21および検査ヘッド11と連結され
ている。
Optical fiber 14 and optical fiber 15
On the inspection head 11 side, is a flexible deformable tube 20 and a grip portion 21 which are so-called gooseneck.
And the right end portion and the left end portion of the tube 20 are connected to the grip portion 21 and the inspection head 11, respectively.

【0013】上記した構成を備えた歯周疾患盲嚢測定装
置10を用いた歯周疾患盲嚢50の深さの測定方法を、
以下、順追って説明する。
A method for measuring the depth of the periodontal disease cecal sac 50 by using the periodontal disease cecal sac measuring device 10 having the above-described structure,
Hereinafter, description will be made step by step.

【0014】(1)図3に示すように、ノズル60を用
いて、歯周疾患盲嚢50内に水またはエアを噴射して、
歯周疾患盲嚢50内の唾液を除去する。
(1) As shown in FIG. 3, a nozzle 60 is used to inject water or air into the periodontal disease cecal sac 50.
The saliva in the periodontal disease cecal sac 50 is removed.

【0015】(2)図4に示すように、発光物質を歯周
疾患盲嚢50およびその近傍に塗布する。
(2) As shown in FIG. 4, a luminescent substance is applied to the periodontal disease cecal sac 50 and its vicinity.

【0016】(3)口の中を水等ですすいで、歯周疾患
盲嚢50内だけに発光物質だけが残留するようにする。
(3) The mouth is rinsed with water or the like so that only the luminescent substance remains in the periodontal disease blind sac 50.

【0017】(4)歯周疾患盲嚢50を図2で示される
態様にセットする。
(4) Periodontal disease The blind sac 50 is set in the manner shown in FIG.

【0018】(5)図2で示される状態を保持しつつ、
歯周疾患盲嚢50をCCDカメラ17にて撮像する。こ
の撮像は歯周疾患盲嚢50にて反射される紫外線または
赤外線を利用して行われ、撮像された画像は図5に示さ
れるようになる。
(5) While maintaining the state shown in FIG.
The periodontal disease cecal sac 50 is imaged by the CCD camera 17. This imaging is performed using ultraviolet rays or infrared rays reflected by the periodontal disease cecal sac 50, and the imaged image is as shown in FIG.

【0019】(6)CCDカメラ17にて撮像した画像
を画像処理装置18に取り込み2値化する。この状態
は、図6に示されるようになる。
(6) The image picked up by the CCD camera 17 is taken into the image processing device 18 and binarized. This state is as shown in FIG.

【0020】(7)かような2値画像から、歯周疾患盲
嚢50の面積、外接長方形の縦長・横長等を計測し、歯
周疾患に有無・進行状態が判断される。
(7) From such a binary image, the area of the periodontal disease blind sac 50, the vertical and horizontal lengths of the circumscribed rectangles, and the like are measured to determine the presence or absence of periodontal disease and the progress state.

【0021】[0021]

【発明の効果】以上述べたように、請求項1の発明によ
れば、被検査部位たる歯周疾患盲嚢の光透過状態を画像
解析することにより、非接触にて、盲嚢の深さないし寸
法を測定することができる。かくして、患者に苦痛を与
えることなく、しかも正確に歯周疾患盲嚢を認知するこ
とができる。
As described above, according to the first aspect of the present invention, by image-analyzing the light transmission state of the periodontal disease cecal sac which is the site to be inspected, the depth of the cecal sac can be determined without contact. Or the dimensions can be measured. Thus, it is possible to accurately recognize the periodontal disease cecal sac without causing pain to the patient.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の歯周疾患盲嚢測定装置の一実施形態例
のダイアグラムである。
FIG. 1 is a diagram of an embodiment of a device for measuring a periodontal disease cecal sac of the present invention.

【図2】図1に示す装置の使用態様の説明図ある。2 is an explanatory diagram of a usage mode of the apparatus shown in FIG. 1. FIG.

【図3】歯茎の洗浄態様の説明図である。FIG. 3 is an explanatory diagram of a cleaning mode of gums.

【図4】発光物質の塗布態様の説明図である。FIG. 4 is an explanatory diagram of a coating mode of a luminescent material.

【図5】歯周疾患盲嚢およびその近傍の撮象図である。FIG. 5 is a photograph of a periodontal disease cecal sac and its vicinity.

【図6】2値化された歯周疾患盲嚢の画像を示す図であ
る。
FIG. 6 is a diagram showing an image of a binarized periodontal disease cecal sac.

【符号の説明】[Explanation of symbols]

10 歯周疾患盲嚢測定装置 11 検査ヘッド 12 ミラー 14 光ファイバー 15 光ファイバー 16 対物レンズ 17 CCDカメラ 18 画像処理装置 19 TVモニタ 22 光源 30 投光手段 31 受光手段 32 解析手段 10 Periodontal disease blind sac measuring device 11 Inspection head 12 Mirror 14 Optical fiber 15 Optical fiber 16 Objective lens 17 CCD camera 18 Image processing device 19 TV monitor 22 Light source 30 Light emitting means 31 Light receiving means 32 Analyzing means

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 投光手段および受光手段を備えた検査ヘ
ッドならびに前記投光手段から照射された光の被検査部
位からの反射状態を前記受光手段を介して捉え、前記被
検査部位の状態を画像解析する解析手段を有する歯周疾
患盲嚢測定装置。
1. An inspection head provided with a light projecting means and a light receiving means, and a state of reflection of the light emitted from the light projecting means from the inspected portion is detected through the light receiving means to determine the state of the inspected portion. A device for measuring the periodontal disease cul-de-sac having an analyzing means for image analysis.
JP9123296A 1996-04-12 1996-04-12 Periodontal disease caecum measuring device Pending JPH09276299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9123296A JPH09276299A (en) 1996-04-12 1996-04-12 Periodontal disease caecum measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9123296A JPH09276299A (en) 1996-04-12 1996-04-12 Periodontal disease caecum measuring device

Publications (1)

Publication Number Publication Date
JPH09276299A true JPH09276299A (en) 1997-10-28

Family

ID=14020682

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9123296A Pending JPH09276299A (en) 1996-04-12 1996-04-12 Periodontal disease caecum measuring device

Country Status (1)

Country Link
JP (1) JPH09276299A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2352512A (en) * 1999-07-23 2001-01-31 Toshiba Res Europ Ltd A radiation probe and dectecting tooth decay
JP2015150277A (en) * 2014-02-17 2015-08-24 株式会社長田中央研究所 Periodontal pocket depth measuring device and periodontal pocket depth measuring method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2352512A (en) * 1999-07-23 2001-01-31 Toshiba Res Europ Ltd A radiation probe and dectecting tooth decay
GB2352512B (en) * 1999-07-23 2002-03-13 Toshiba Res Europ Ltd A radiation probe and detecting tooth decay
US8027709B2 (en) 1999-07-23 2011-09-27 Teraview Limited Radiation probe and detecting tooth decay
JP2015150277A (en) * 2014-02-17 2015-08-24 株式会社長田中央研究所 Periodontal pocket depth measuring device and periodontal pocket depth measuring method

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