10 results about "Root canal length" patented technology

Embodiments of the present application disclose a method and device for extracting root canal feature morphology based on CBCT data, equipment and medium, belong to the field of oral medicine and medical image technology, wherein the method comprises: filtering and denoising CBCT images and performing pulp segmentation processing, and performing surface rendering three-dimensional reconstruction on tooth root canals to generate a three-dimensional model; based on the regular point cloud data in the three-dimensional model, a point-surface method is used to realize surface reconstruction to generate a root canal entity model; the root canal entity model is subjected to coordinate alignment processing in a three-dimensional space, and the approximate center line of the fitted root canal is used to measure the root canal length, root canal opening direction, root canal curvature and pulp depth. The present application quickly reconstructs the corresponding three-dimensional model based on the CBCT tomographic images obtained by scanning the teeth of a patient, and obtains relevant data such as pulp depth and root canal opening size from the three-dimensional model of the teeth to assist the performance of oral surgery.

The utility model discloses a root canal file which comprises a root canal file body, the root canal file body is provided with an effective blade part, an insulation covering part, a handle arranging part and a measuring metal part, the effective blade part, the insulation covering part, the handle arranging part and the measuring metal part are arranged in sequence, and the effective blade part is provided with threads; the insulation structure is provided with an insulation handle and an insulation covering film; the insulating covering film wraps the insulating covering part, and the insulating handle wraps the handle setting part. The insulating covering film can prevent the metal part of the root canal file from being in contact with the metal dental crown of the patient, so that short circuit or alarm of the root canal length measuring instrument is avoided, the root canal length measuring instrument can be protected, and the service life of the root canal length measuring instrument is prolonged. When the front end of the effective blade part is in contact with the periapical membrane, the root canal length measuring instrument shows that a current loop is formed.

A telescopic root canal preparation machine relates to the field of dental equipment and comprises a shell assembly and a machine head assembly, the machine head assembly is mounted on the shell assembly, and the machine head assembly and the shell assembly are slidably matched in the extension direction of a preset axis so as to adjust the length of the machine head assembly extending out of the shell assembly; the machine head assembly is used for installing a work tip. According to the structural design of the preparation machine, the shape can be adjusted according to needs, so that the preparation machine can be matched with the lengths and shapes of root canals of different patients, the treatment effect is better, and the treatment time is saved.

The invention discloses a root canal treatment teaching mold capable of positioning a root tip dead point and a manufacturing method thereof, a conducting medium channel is arranged in an oral cavity mold body, and a super-absorbent polymer material is filled in the channel, so that the material absorbs water and expands to form a stable gel conducting environment, and the oral cavity mold body can be used for teaching the root canal treatment. When the conductive electrode of the root canal length measuring instrument is inserted through the guide hole and abuts against the conductive medium, the root canal file and the conductive electrode are electrically connected in the gel conductive environment, and therefore the electrical measurement positioning operation of the root tip dead point is achieved. Compared with the phenomena of instability, frequent signal interference and the like caused by a liquid conductive environment established by adopting a liquid conductive medium, the mold improves the stability and repeatability of root measurement signal response through the cooperation of a structure-closed conductive path and a controllable gel medium. In addition, the device can be fixed to a simulated head mold, and the purposes of truly simulating a clinical patient to carry out a root tip dead center positioning scene and carrying out simulation training on the whole root canal treatment process are achieved.

1. The name of the design product: root canal length measuring instrument. 2. The use of the design product: used to measure the working length of root canal during dental root canal treatment. 3. The design features of the design product: the shape of the product shown in the views of the drawings. 4. The picture or photo that best indicates the design features: perspective view 1.

Medical system, storage medium, notification method of warning, and acceptance method. In a dental treatment system, a root canal length measuring device has a wireless communication unit that transmits data related to treatment to a tablet computer, a display that displays graphics or text corresponding to the data, and a control unit that causes the root canal length measuring device to notify a warning in a notification mode of visual notification and auditory notification if the data satisfies a warning condition. The tablet computer has a wireless communication unit that receives data from the root canal length measuring device, a touch panel display that displays graphics or text corresponding to the data, and a control unit that causes the tablet computer to notify a warning in only a part of the notification modes performed in the root canal length measuring device if the data satisfies the warning condition.

1. Name of the product in this design: Root Tip Electronic Analyzer. 2. Purpose of this design: A tool for measuring root canal length during dental treatment. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model discloses a kind of endodontic root canal therapy dilatation needle limiters, including handle, the upper end of the handle is fixedly connected with fixed ring, and fixed ring is fixedly connected with connecting rope on it, the lower end of the handle is fixedly connected with the body of being checked, and the upper end outside of the body of being checked is clamped with limit ring, the limit ring is fixedly connected with clamping block on it.The existence of limit ring can accurately limit the depth of the body of being checked into root canal, in the root canal treatment process, the root canal length of different teeth is different, by adjusting the position of limit ring, it can be ensured that the operation of dilatation needle in root canal is always in safe range, avoid excessive deep damage root apex tissue or beyond root canal cause unnecessary trauma, for molar and other root canal deeper teeth, limit ring can be adjusted to appropriate position, prevent dilatation needle from exceeding root apex hole in root canal preparation process, reduce the risk of occurrence of complications such as periapical periodontitis.

The utility model relates to the technical field of root canal length measurement, in particular to a dental root canal length measuring instrument based on an Android system APP, which comprises a lip hook and a root canal file and further comprises a signal collector, and a measuring line group is connected between the signal collector and the lip hook and between the signal collector and the root canal file. The signal collector comprises an Android interface, a two-way operational amplifier, a data memory and an audio decoding chip, the Android interface is electrically connected with an Android APP, the Android APP comprises a waveform generation module and a data calculation module, the waveform generation module generates sine wave signals, and the audio decoding chip performs digital-to-analog conversion of waveform signals between the Android APP and the end part of the root canal file. The Android APP is connected with the signal collector through the measuring line set, the waveform generation module sends a waveform to the root canal file to make contact with the root tip for positioning, data returned by the root tip position is calculated by the data calculation module, measurement and calculation are integrated in the APP, the calculation speed is high, stability is high, and the root tip positioning process is conveniently observed and recorded in real time.

A dental treatment apparatus includes a holder, a power supply, root canal length measurement circuitry, and control circuitry. The holder holds an electrode placed in a root canal. The power supply energizes file with a high-frequency current. The root canal length measurement circuitry electrically measures a position of a distal end of electrode in the root canal. The control circuitry causes, in accordance with information on the position of the distal end of the electrode measured by root canal length measurement circuitry, the power supply to control a current value of the high-frequency current which energizes the electrode.