JP2005080759A

JP2005080759A - Photopolymerizer having camera

Info

Publication number: JP2005080759A
Application number: JP2003313889A
Authority: JP
Inventors: Kota Matsuda; 光太松田
Original assignee: Osada Research Institute Ltd
Current assignee: Osada Research Institute Ltd
Priority date: 2003-09-05
Filing date: 2003-09-05
Publication date: 2005-03-31

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the cost and to increase the working efficiency in such a manner that in a dental treatment, a single handpiece is formed by effectively combining a photopolymerizer (handpiece) which is used for curing of an optical curing resin, and an intra-buccal observation camera (handpiece) which observes the situation in the oral cavity of a patient, and two handpieces which have conventionally been required are unified. <P>SOLUTION: The head section of the handpiece 10 is equipped with an LED 11 for photopolymerization and an LED 12 for illumination, a half-mirror prism 13, a lens 14 for the camera, and a CCD sensor 15. At the time of the photopolymerization, light from the LED 11 is cast on the optical curing resin through the half-mirror prism 13 to cure the resin. At the time of the intra-buccal observation, the image of an observation spot is introduced to the CCD sensor 15 through the half-mirror prism 13, and is displayed on a monitor. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、歯科治療において、歯牙形成後の修復材として使用する光重合レジンを硬化させるための光重合器と、患者の口腔内を撮影観察するＣＣＤカメラとを備えたカメラ付光重合器に関する。 The present invention relates to a photopolymerizer with a camera provided with a photopolymerizer for curing a photopolymerization resin used as a restoration material after tooth formation in dental treatment, and a CCD camera for photographing and observing the inside of a patient's mouth. .

歯科治療の１つに、歯牙の修復材として光重合レジンを用い、該光重合レジンを歯牙の破損箇所へ接着した後、該光重合レジンを硬化させるのに有効な波長範囲（例えば、４３０〜４８０ｎｍ）の光を照射する光重合器を用い、該光重合器から光を照射してレジンを硬化させ、硬化後、切削、研磨等を行って元の歯牙と一体化させて破損前の歯牙の審美性をもたせるようにする歯科保存修復治療がある。 In one of the dental treatments, a photopolymerization resin is used as a tooth restoration material. After the photopolymerization resin is adhered to a damaged portion of a tooth, the wavelength range effective for curing the photopolymerization resin (for example, 430 to 430) 480 nm) using a photopolymerizer that irradiates light from the photopolymerizer to cure the resin, and after curing, the teeth are cut and polished to be integrated with the original teeth before being damaged There are dental preservation and restoration treatments that give the aesthetics of

また、歯科治療においては、歯根を切削、成形、洗浄した後、該歯根内に詰め物をする等の治療を行うが、その場合、歯根内が的確に切削、成形されているか否かを観るために、口腔内観察カメラを用いるが、近年ＣＣＤ（固体映像素子）の画素数も多くなり高分解能のものができ、且つ、光感度、色再現性が向上したことからＣＣＤカメラが使用されている。 In dental treatment, the root is cut, molded, and washed, and then the filling is performed in the root. In addition, although an intraoral observation camera is used, the number of pixels of a CCD (solid-state imaging device) has been increased in recent years, so that a high-resolution one can be obtained, and since the photosensitivity and color reproducibility have been improved, a CCD camera is used. .

上述のように、歯科治療においては、光重合器や口腔内観察カメラを使用するが、従来、これらが別体として構成されており、そのため、これらを別々に準備しなければならず、コストがかかるばかりでなく、その都度、それらを取り替えて使用しなければならず、使用勝手が悪かった。特に、歯牙修復作業時等、光重合レジンを硬化する作業と、その硬化作業前の様子や硬化作業後の様子を観察する作業との間で、光重合器（ハンドピース）と口腔内観察用カメラ（ハンドピース）とを持ち替えなければならず、作業能率が悪かった。 As described above, in the dental treatment, a photopolymerizer and an intraoral observation camera are used, but conventionally, these are configured as separate bodies, and therefore, these must be prepared separately, which is costly. Not only did this take place, but each time they had to be replaced and used, which was unusable. Especially for photopolymerization (handpiece) and intraoral observation between the work of curing the photopolymerization resin, such as during tooth restoration work, and the work of observing the state before and after the curing work The camera (handpiece) had to be changed, and work efficiency was poor.

本発明は、上述のごとき実情に鑑みてなされたもので、歯科治療において光重合レジンの硬化に用いられる光重合器（ハンドピース）と患者の口腔内の様子を観察する口腔内観察カメラ（ハンドピース）とを効果的に組み合せて、単一のハンドピースとし、従来、２本必要としていたハンドピースを１本にして、コストの低減化を図るとともに、作業効率の向上を図ったものである。 The present invention has been made in view of the above circumstances, and a photopolymerizer (handpiece) used for curing a photopolymerization resin in dental treatment and an intraoral observation camera (hand) for observing the inside of a patient's oral cavity. ) Effectively combined into a single handpiece, and the conventional two handpieces are required to reduce costs and improve work efficiency. .

請求項１の発明は、光重合用のＬＥＤと、ＣＣＤセンサと、前記光重合用ＬＥＤからの光を透過しかつ被観察箇所の像を屈折反射して前記ＬＥＤセンサに導くハーフミラープリズムとを有し、前記ＬＥＤよりの光により光重合レジンを硬化し、前記ＣＣＤセンサにより被観察箇所を撮像するようにしたことを特徴としたものである。 The invention of claim 1 includes a photopolymerization LED, a CCD sensor, and a half-mirror prism that transmits light from the photopolymerization LED and refracts and reflects an image of the observed portion to guide the LED sensor. The photopolymerization resin is cured by light from the LED, and the observed portion is imaged by the CCD sensor.

請求項２の発明は、請求項１の発明において、更に、照明用のＬＥＤを有し、該照明用のＬＥＤによって光重合箇所及び被観察箇所を照明するようにしたことを特徴としたものである。 The invention of claim 2 is characterized in that, in the invention of claim 1, further comprising an illumination LED, the photopolymerization spot and the observation spot are illuminated by the illumination LED. is there.

歯科治療において、光重合レジンの硬化に使用される光重合器（ハンドピース）と口腔内の様子を観察するのに使用される口腔内観察カメラ（ハンドピース）を一体化したので、製造コストを低減でき、更には、光重合用ハンドピースと口腔内観察カメラ用ハンドピースを取り替えて使用する必要がないので、作業効率を格段に向上させることができる。 In dental treatment, the photopolymerizer (handpiece) used for curing the photopolymerization resin and the intraoral observation camera (handpiece) used for observing the inside of the oral cavity are integrated, reducing the manufacturing cost. Furthermore, since it is not necessary to replace and use the photopolymerization handpiece and the intraoral observation camera handpiece, work efficiency can be significantly improved.

図１は、本発明によるカメラ付光重合器の一実施例を説明するための要部概略構成図で、図中、１０はカメラ付光重合器（ハンドピース）、２０は電源及び信号線ケーブルで、ハンドピース１０の先端部（ヘッド部）には光重合用のＬＥＤ１１及び照明（可視光）用のＬＥＤ１２、ハーフミラープリズム１３、カメラ用レンズ１４、ＣＣＤセンサ１５等を有し、握持部（本体部）にはＣＣＤセンサ駆動用基板１６が設けられている。ヘッド部には、光重合用ＬＥＤ１１及び照明用ＬＥＤ１２に対向する位置にこれらＬＥＤ１１，１２からの光を透過するカバーガラス部１０ａが設けられており、例えば、歯牙修復作業時、光重合用ＬＥＤ１１からの光がハーフミラープリズム１３、及び、カバーガラス部１０ａを通して、図示しない歯牙修復用光重合レジンに照射され、該レジンを硬化する。 FIG. 1 is a schematic configuration diagram of a main part for explaining an embodiment of a photopolymerizer with a camera according to the present invention. In the figure, 10 is a photopolymerizer with a camera (handpiece), and 20 is a power supply and signal line cable. The handpiece 10 has a photopolymerization LED 11, an illumination (visible light) LED 12, a half mirror prism 13, a camera lens 14, a CCD sensor 15, etc. A CCD sensor driving substrate 16 is provided in the (main body). The head portion is provided with a cover glass portion 10a that transmits light from the LEDs 11 and 12 at a position facing the photopolymerization LED 11 and the illumination LED 12. For example, during the tooth restoration operation, from the photopolymerization LED 11 Is irradiated through a half mirror prism 13 and a cover glass portion 10a to a photopolymerization resin for tooth restoration (not shown) to cure the resin.

上述のごときレジン硬化作業前後において、当該作業箇所を観察したい時は、照明用ＬＥＤ１２が点灯して被観察箇所を照明し、ＣＣＤセンサ駆動用基板１６を駆動させると、被観察箇所の像がハーフミラープリズム１３、カメラ用レンズ１４、ＣＣＤセンサ１５にて撮像され、図２に示すモニタ４０に表示される。 When it is desired to observe the work location before and after the resin curing operation as described above, the illumination LED 12 is turned on to illuminate the observation location, and when the CCD sensor driving substrate 16 is driven, the image of the observation location is half. The image is picked up by the mirror prism 13, the camera lens 14, and the CCD sensor 15 and displayed on the monitor 40 shown in FIG.

図２は、図１に示したカメラ付光重合器の使用状態を説明するための全体構成図で、図中、１０はハンドピース、２０は電源及び信号線ケーブル、３０は画像信号処理装置、４０はモニタ（ディスプレイ）で、ハンドピース１０の先端部には、前述のように、ＬＥＤ１１，１２及びＣＣＤセンサ１５を有し、口腔内の被観察部位を照明用ＬＥＤ１２によって照明し、該ＬＥＤ１２によって照明された部位の状況をハーフミラープリズム１３、カメラ用レンズ１４等を通してＣＣＤセンサ１５によって撮影し、撮影した画像をケーブル２０を通して、画像信号処理装置３０に伝送し、該画像信号処理装置３０により画像処理し、モニタ（ディスプレイ）４０上に表示する。 FIG. 2 is an overall configuration diagram for explaining a use state of the camera-equipped photopolymerizer shown in FIG. 1, in which 10 is a handpiece, 20 is a power source and signal line cable, 30 is an image signal processing device, Reference numeral 40 denotes a monitor (display), which has the LEDs 11 and 12 and the CCD sensor 15 at the distal end portion of the handpiece 10 as described above, and illuminates the observed site in the oral cavity with the illumination LED 12. The state of the illuminated part is photographed by the CCD sensor 15 through the half mirror prism 13, the camera lens 14, etc., and the photographed image is transmitted to the image signal processing device 30 through the cable 20, and the image signal processing device 30 images the image. Process and display on monitor (display) 40.

また、光重合器として使用する時は、光重合用（４３０〜４８０ｎｍ波長）のＬＥＤ１１を発光させ、該ＬＥＤ１１からの光重合用の光をハーフミラープリズム１３を通して歯牙修復用レジンに照射し、該レジンを硬化する。この時、光重合用ＬＥＤと同時に照明（可視光）用のＬＥＤも同時に発光させると、光重合箇所のレジンを目視にてより明確に観察することができる。更には、ＣＣＤセンサ駆動用基板１６を駆動することにより、光重合箇所の様子をディスプレイ４０で観察することもできる。 When used as a photopolymerizer, the photopolymerization (430 to 480 nm wavelength) LED 11 is caused to emit light, and the photopolymerization light from the LED 11 is irradiated to the tooth restoration resin through the half mirror prism 13, Cure the resin. At this time, if the LED for illumination (visible light) is also caused to emit light simultaneously with the LED for photopolymerization, the resin at the photopolymerization site can be more clearly observed visually. Further, by driving the CCD sensor driving substrate 16, the state of the photopolymerization portion can be observed on the display 40.

本発明によるカメラ付光重合器の一実施例を説明するための要部概略構成図である。It is a principal part schematic block diagram for demonstrating one Example of the photopolymerizer with a camera by this invention. 図１に示したカメラ付光重合器の使用状態を説明するための全体構成図である。It is a whole block diagram for demonstrating the use condition of the photopolymerizer with a camera shown in FIG.

Explanation of symbols

１０…ハンドピース、１０ａ…カバーガラス部、１１…光重合用ＬＥＤ、１２…照明用ＬＥＤ、１３…ハーフミラープリズム、１４…カメラ用レンズ、１５…ＣＣＤセンサ、１６…ＣＣＤセンサ駆動用基板、２０…ケーブル、３０…画像信号処理装置、４０…モニタ（ディスプレイ）。 DESCRIPTION OF SYMBOLS 10 ... Handpiece, 10a ... Cover glass part, 11 ... Photopolymerization LED, 12 ... Illumination LED, 13 ... Half mirror prism, 14 ... Camera lens, 15 ... CCD sensor, 16 ... Substrate for CCD sensor drive, 20 ... Cable, 30 ... Image signal processing device, 40 ... Monitor (display).

Claims

An LED for photopolymerization, a CCD sensor, and a half mirror prism that transmits light from the LED for photopolymerization and that refracts and reflects an image of the observed portion and guides it to the LED sensor. A photopolymerizer with a camera, wherein a photopolymerization resin is cured by light, and an image of an observation site is picked up by the CCD sensor.

The photopolymerizer with a camera according to claim 1, comprising an LED for illumination, wherein the LED is used to illuminate a photopolymerization site and an observation site.