The Yoshida Dental Mfg. Co., Ltd.

Osaka University

Toei Electric Co., Ltd.

Yoshida Creation Inc.

Technology Research Institute of Osaka Prefecture

Michizo Yamanaka

Terumi Takemoto

Takeshi Hasegawa

Katsuhisa Kitano

Masahiro Otsuka

Takeshi Tomoe

Satoshi Ikawa

Tsuneo Kawahara

Provided is a lateral branch detection probe whereby the condition of a lateral branch can be detected merely by inserting the lateral branch detection probe to an apex. A lateral branch detection probe detects, after insertion thereof into a root canal of a tooth, the presence/absence of a lateral branch and the position of the lateral branch in the root canal axis direction, the lateral branch detection probe being provided with a plurality of measurement electrodes extending to different positions in the root canal axis direction at predetermined intervals. The measurement electrodes constitute a measurement terminal group in which each measurement electrode is covered with an insulator except for one end portion, and another end portion thereof is connectable to a detection-purpose power supply on a detection device side.

Lateral branch detection device, lateral branch detection probe, lateral branch detection method, and program for same

A handpiece with a built-camera includes a micromotor-driven handpiece body which includes a cutting tool attached to a head portion thereof, a light receiving port at a position near the cutting tool, a grip portion detachably connected to the handpiece body and a color camera module which is stored inside the handpiece body. The handpiece with the built-in camera further includes an objective lens which faces the light receiving port and a rod fiber which is attached to an inner wall portion of the handpiece body with an incidence end of the rod fiber facing the objective lens and an exit end of the rod fiber facing a condensing lens unit.

Handpiece with built-in camera and dental treatment method using handpiece

An X-ray imaging device wherein a control section rotates an arcuate movement arm by actuating a turn-driving unit, turns an X-ray source and an X-ray sensor around a subject, and actuates a shifting unit to simultaneously shift the transmission part of the subject, through which an X-ray flux detected by the X-ray sensor passing. Thus provided is an X-ray imaging device in which an X-ray imaging unit having a comparatively narrow detection area can be used to reduce costs, the imaging operation efficiency can be improved, and the vibration of moved members, such as the X-ray imaging unit, can be reduced.

X-ray imaging device

An X-ray photographing device comprising a turning means for turning an x-ray source and an X-ray sensor around a subject is provided with an arcuate movement means for arcuately moving the X-ray sensor around an arcuate movement center axis, and a control unit. The control unit continuously performs a first photographing step for detecting an X-ray flux while turning the X-ray sensor in a first arcuate movement range around the arcuate movement center axis by the arcuate movement means, a shifting/turning step for shifting/turning an arcuate movement arm around the subject by the turning means, and a shifting/photographing step for detecting the X-ray flux while turning the X-ray sensor in a second arcuate movement range around the arcuate movement center axis by the arcuate movement means in the state shifted from the first arcuate movement range by a very small angle in the shifting/turning step.

X-ray photographing device

A dental clinical apparatus having a function which conventional instruments for dental treatment have not had and having a novel constitution. The dental clinical apparatus includes a syringe which has a fluid jetting system for dental treatment and a plasma jet applying means for producing a plasma jet from the end by allowing a low-frequency high-voltage power supply to apply a low-frequency high voltage between electrodes on the outer peripheral surface of a rare gas tube through which a rare gas having a low dielectric breakdown voltage under the atmospheric pressure is flowed, and thereby causing electrical discharge.

Growing community of inventors

Tokyo, Japan

Michizo Yamanaka