JP4093750B2 - Dental root canal filling system using light-diffusing resin fiber, light-curing resin and dentin adhesive - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a system for root canal filling in dental root canal treatment.
[0002]
[Prior art]
In general, paste materials, gutta percha, silver points, chemically polymerized resin, zinc oxide cement, etc. were used alone or in combination for root canal filling for dental root canal treatment, but thin root canals are completely filled without dead Not only is it difficult to occlude, but various root canal fillers have a harmful effect on the tissues until they harden, and if they leak or protrude into the tissues due to excessive root canal filling, there is an inflammatory reaction in the periodontal tissues Woke up.
[0003]
[Problems to be solved by the invention]
However, as mentioned above, filling and closing a pressurized root canal without using a gutta percha to a fine and bent root canal requires advanced technology and enormous work time, and a gutta percha master point with a circular cross section. When using sealers such as chemically polymerized resin and zinc oxide cement together with the gutta-percha accessory point, periodontal tissue was inflamed when the sealer leaked from the apex. Furthermore, when the apex portion is not mechanically occluded by the gutta percha itself, a dead sky is formed at the apex portion when the apex portion is decomposed and absorbed by the tissue fluid around the apex even after the sealer is cured.
[0004]
In view of such circumstances, the present invention allows immediate adjustment within the root canal, enables the root canal filling agent to be easily adjusted without the root canal filling agent projecting from the apex or forming a dead sky, and the root canal. It is an object of the present invention to provide a root canal filling material and a root canal filling system in which the filling material and the dentin in the root canal are bonded together to completely close the apex and the root canal wall.
[0005]
[Means for solving the problems and effects]
The present invention has a prism portion provided with a condensing resin for condensing and converging light such as visible light or ultraviolet light emitted from a light source at one end, and an appropriate fit for a root canal in which the other end of the prism portion is formed as a root canal. When a visible light or ultraviolet ray is projected onto the prism portion of the funnel-shaped master point portion in which the point portions formed of a light-diffusing resin in a fiber shape having elasticity are connected in transition, the light-diffusing resin is molded. The fiber-shaped point portion emits light evenly.
[0006]
Using this master point, the infected dental pulp, necrotic pulp or infected dentin is removed and cleaned, and the root canal where the root canal has been formed is pre-applied with a dentin adhesive and filled with a photocurable resin. Roots that are difficult to reach from the root canal by inserting the fiber-shaped point part of the master point, which is molded with a diffusion resin, into the root canal of the root canal and irradiating visible light or ultraviolet rays to the small end of the prism. Since the photocurable resin and the dentin adhesive are photopolymerized up to the apex, the root canal can be physically and completely blocked without leaving any monomer.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show an example of an embodiment of the present invention. In the figure, the same reference numerals as those in the figure denote the same parts, and the basic configuration is the conventional structure shown in FIGS. However, as shown in FIG. 1, a visible light ray or an ultraviolet ray emitted from the photopolymerizer light source unit 8 when filling a root canal for dental root canal treatment is used. by irradiating the master point 10 in the optical fiber portion 9, the master point 10 Figure 2 and one end of the master points condensing the master point funnel-shaped portion 2 as shown in FIG. 3 prism portion 1 and the other end of the master points light since diffusion resin fibrous point portion 3 are migrated to integrally molded or coupled, light emitted from the polymerization vessel is emitted from the entire circumference master point light diffusing resin fiber shape point portion 3, fine There dentin adhesive 5 and the photocurable resin 6 to reach the light to every corner of the root canal to the point which enables it allowed to photopolymerization.
[0008]
Next, the treatment procedure of the illustrated example will be described.
In the treatment, as shown in FIG. 4, the infected dental pulp, necrotic pulp or infected dentin is removed and cleaned, and a dentin adhesive 5 is applied in advance to the inner wall of the root canal where the root canal has been formed using a paper point 4 or the like. Next, as shown in FIG. 5, the master point light diffusing resin fiber-like point portion 3 reaches the root apex 14 in the root canal in which the photocurable resin 6 is injected from the root canal opening 13 to the root apex 14. The point is inserted into the root canal, and light is applied to the master point condensing prism portion 1 to polymerize the dentin adhesive 5 and the photocurable resin 6. Finally, as shown in FIG. 6, the master point light diffusion resin fiber-like point portion 3 chemically bonded to the polymerized photocurable resin 6 is left in the root canal, and the master point funnel shape portion 2 and the master point condensing prism. The part 1 is scraped off at the master point cutting surface 7 to complete the root canal filling.
[0009]
Thus, the root canal is tightly closed from the root canal opening 13 to the root apex 14 by the dentin adhesive 5 and the photocurable resin 6.
The dental root canal filling system using the light diffusing resin fiber, the light curable resin, and the dentin adhesive of the present invention is not limited to the above illustrated examples, and does not depart from the gist of the present invention. Of course, the shape of the master point can be variously changed according to the tooth type and the anatomical form of the root canal.
[Brief description of the drawings]
[Fig. 1] Use of dental root canal filling system using light diffusion resin fiber point, photo-curing resin and dentin adhesive [Fig. 2] Side view of master point [Fig. 3] Master point from the apical direction View [Figure 4] A cross-sectional view showing a state where a dentin adhesive is applied to the root canal wall using a paper point. [Figure 5] A photocurable resin is poured into a root canal coated with a dentin adhesive. FIG. 6 is a cross-sectional view showing a state in which a light diffusing resin fiber-like point is inserted. FIG. 6 Photopolymerizes a photo-curing resin and a dentin adhesive, and integrates it with the light diffusing resin fiber-like point portion. Sectional view showing the state where the master point is cut and root canal filling is completed
1, master point condensing prism part 2, master point funnel shape part 3, master point light diffusion resin fiber point part 4, paper point 5, dentin adhesive 6, photo-curing resin 7, master point cut surface 8, light Polymerizer light source 9, polymerizer optical fiber unit 10, master point 11, enamel 12, dentin 13, root canal 14, apical mouth 20, skull 21, orbit 22, maxilla 23, mandible 24, mandibular large Molar (root canal treatment tooth)
25, Maxillary anterior teeth 26, Mandibular anterior teeth

Claims (1)

A system used for root canal filling in dental root canal treatment,
A light-diffusion resin fiber-like point part with a shape that fits the anatomical shape of the tooth type and root canal with moderate elasticity suitable for the root canal formed, and the condensing resin prism part at the other end is transitional A funnel-shaped master point integrally molded or connected to
Dentin adhesive polymerized by visible light or ultraviolet light emitted from the light diffusion resin of the master point point,
Similarly, a photo-curing resin that is polymerized by visible light or ultraviolet light emitted from the light diffusion resin of the master point point part,
Including
Infected pulp, necrotic pulp or infected dentin is removed and cleaned, and after completion of root canal formation, a photo-curing resin is poured into the root canal, where dentin adhesive is applied to the inner surface of the root canal, and the master point to the root apex Inserting the light diffusing resin fiber-shaped point part and irradiating the light-collecting resin prism part at the other end with visible light or ultraviolet light, the light diffusing resin fiber-shaped point part emits light entirely, Master point light diffusing resin fiber that is chemically bonded to the root apical hole and root canal by chemically polymerizing and bonding the light diffusing resin fiber-like point part to the root apical hole and blocking the apical hole by photopolymerization. The root point can be left in the root canal, and the master point funnel-shaped portion 2 and the master point condensing prism portion 1 are scraped by the master point cutting surface 7 to complete the root canal filling. Root canal filling system.

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