Navigation device for root canal treatment and making method thereof

Abstract

The invention discloses a navigation device for root canal treatment. The navigation device is composed of plywood, a guide post and a working length marking plate, the plywood is a sleeve plate which is matched with the dental crown shape of an offending tooth or the offending tooth and a partial tooth or a whole tooth of an adjacent single tooth, and an exposure opening is formed in the portion corresponding to an offending tooth root canal; the cross section of the guide post is shaped like an inverted L, the guide post is connected with the plywood into a whole through the end of a vertical section, a notch is formed in the end of a horizontal section, the edge in the notch corresponds to an offending tooth root canal approach, and the distance between the lower surface of the horizontal section and the upper surface of the plywood is at least 1.5 mm; the working length marking plate is a disc with a hole formed in the middle and is movably fixed on a fissure drill or expansion or file, and matching and limiting of the working length marking plate and the upper surface of the notch of the guide post are achieved through the lower surface of working length marking plate. The invention further discloses a making method of the navigation device for root canal treatment. The navigation device has better compactness with a tooth body, accurate positioning can be achieved without relying on a doctor, tooth body tissue cutting is reduced, the probability of a tooth fracture of a patient is reduced, and it is guaranteed that root canal treatment is conducted smoothly.

Description

technical field [0001] The invention belongs to the technical field of dental auxiliary medical devices and preparation thereof, and in particular relates to a navigation device for root canal treatment and a preparation method thereof. Background technique [0002] With the vigorous development of digital stomatology technology, it has become a reality to use dental cone-beam computerized tomography to obtain the shape of the internal root canal of the tooth to effectively assist physicians to successfully carry out root canal treatment. [0003] The patent application with the application number 201510167190.0 discloses a tooth pulp opening method and device for root canal treatment. The method is to intercept the image of the middle position of the affected tooth from the computed tomography CT slice of the target tooth, and The image slice is segmented and calculated to obtain a three-dimensional model of the target tooth; the root canal of the target tooth is segmented ...

AI Technical Summary

Problems solved by technology

Although this method does not require physicians to remove the entire pulp chamber roof with treatment tools, it can more accurately determine the location of the root canal, thereby significantly reducing the diameter of the pulp opening and maximizing the preservation of the dentin on the side wall of the pulp chamber, reducing the risk of complications for patients. The probability of tooth fracture, but this device is only a virtual device, and the doctor can only know and determine the position of the root canal opening through the virtual device. In actual operation, it still depends on the doctor's own grasp and feel of it. Therefore, The resulting human factors will undoubtedly have a more or less adverse effect on its therapeutic effect

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