TW201635982A - Woven fiber optics dental post - Google Patents

Abstract

The present invention provides a woven fiber optics dental post, which comprises a body post and a woven fiber member. The body post comprises a post surface, a radiation receiving portion, and a bottom portion. The woven fiber member is penetrated and fixed on the body post and is formed by mutually winding a plurality of fiber optics. The light receiving end and the light emitting end of the woven fiber member are respectively constituted by the light receiving ends and the light emitting ends of the plurality of fiber optics. The radiation receiving portion of the body post reveals the light receiving end allowing the woven fiber member to receive the light irradiated on the radiation receiving portion. The post surface and/or the bottom of the body post reveal the light emitting end allowing the light received by the woven fiber member to transmit to the light emitting end part and to be emitted from the post surface and/or the bottom, thereby enhancing the structural strength of the dental post and the intensity and uniformity of irradiation.

Description

Optical woven fiber root column

The present invention relates to a root post, and more particularly to an optical woven fiber root post.

After root canal treatment or tooth fracture, the teeth are structurally weak due to tooth defects. In order to strengthen the structural strength of the teeth, the root post must be implanted in the root canal to support the dental caries (dentures, braces). The root post can be generally divided into a metal root column and a fiber root column. The metal root column is criticized because it will see gray from the all-ceramic crown, and the metal root column is too hard, and it is easy to contact the teeth during the stress time. The roots are forced to break and the roots are broken, so the demand for fiber roots has continued to increase in recent years. The fiber root column is a fiber-reinforced polymer. When the tooth is stressed, it can bend at the same time as the root of the tooth. It does not become so rigid as the metal root column, which causes the root to break. It does not contain metal components and does not cause allergies and corrosion. The problem, and the color is similar to the nature of the teeth, is the most suitable choice for all-ceramic crowns with high aesthetic requirements.

Clinically, dentists often use adhesives to adhere to the fiber column. The photocurable adhesive can save time in treatment due to the short hardening time. However, if the photocurable adhesive is incompletely polymerized, it may lower its physical properties, cause poor adhesion, deteriorate wear resistance, and increase the probability of microleakage, resulting in biocompatibility problems. Will lead to treatment failure. In recent years, the literature indicates that the degree of polymerization of photocurable adhesives is positively correlated with light intensity. However, the conventional root post has no light guiding effect or poor light guiding effect, and when the photocurable adhesive is used, the polymerization is incomplete due to poor light intensity, which is necessary for improvement.

In view of this, how to improve the light intensity of the root post and maintain the structural strength is an important research topic.

The main object of the present invention is to provide an optical woven fiber root post comprising a body post and a woven fiber member. The body column is made of a resin material, and the body column includes a cylindrical surface, a receiving illumination portion, and a bottom portion. The woven fiber member is fixedly disposed on the body column, and the woven fiber member is formed by winding a plurality of optical fiber members, each of the optical fiber members having a light receiving end and a light emitting end, and the light receiving end of the woven fiber member is plural The light receiving end of the fiber optic member is formed, and one of the light emitting ends of the woven fiber member is composed of a light emitting end of the plurality of fiber optic members, wherein the receiving and illuminating portion of the body column exposes the light receiving end portion to make the woven fiber member Receiving light irradiated onto the receiving illuminating portion, the light emitting end portion is exposed on the cylinder surface and/or the bottom portion of the body column, so that the light received by the woven fiber member is transmitted to the light emitting end portion and is irradiated on the cylinder surface and/or the bottom portion. .

Preferably, the woven fabric member comprises a central fiber shaft and a plurality of braided fiber shafts. The central fiber shaft passes straight through the woven fiber member, with a plurality of braided fiber shafts staggered around the central fiber axis.

Preferably, the optical woven fiber root post further comprises a convex ring portion which protrudes outwardly from the body column along a radial direction of the body column, and the convex ring portion is made of a resin material.

Preferably, the woven fiber member is further disposed to be fixed to the convex ring portion.

Preferably, the collar portion is sleeved on the body post.

Preferably, the fiber optic member includes a casing layer and a core layer.

Preferably, the coefficient of thermal expansion of the shell layer is lower than the coefficient of thermal expansion of the core layer.

Preferably, the refractive index of the shell layer is lower than the refractive index of the core layer.

Preferably, the shell layer and the core layer are made of glass.

Preferably, the shell layer and the core layer are integrally formed.

The invention is formed by inserting a woven fiber member fixed on the body column into a plurality of optical fiber members, so that the structural strength of the optical woven fiber root post is further enhanced. And the light receiving end and the light emitting end of the woven fiber member are respectively composed of a light receiving end and a light emitting end of the plurality of optical fiber members, so that the light intensity of the light irradiated through the optical woven fiber root post and The uniformity is further improved, further enhancing the polymerization of the photocurable adhesive to shorten the treatment time and achieve better adhesion.

In order to further understand the technology, method and effect of the present invention in order to achieve the intended purpose, reference should be made to the detailed description and drawings of the present invention. The drawings are to be considered in all respects as illustrative and not restrictive

100‧‧‧Optical woven fiber roots

1‧‧‧ body column

11‧‧‧ cylindrical

12‧‧‧ Receiving Irradiation Department

13‧‧‧ bottom

2‧‧‧woven fiber components

20‧‧‧Optical fiber parts

201‧‧‧Sheath layer

202‧‧‧ core layer

21‧‧‧Light receiving end

22‧‧‧Light emitting end

23‧‧‧Central fiber shaft

24‧‧‧Curled fiber shaft

3‧‧‧ convex ring

C‧‧‧ root canal

L‧‧‧Light

P‧‧‧Dental sputum

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view of an optical woven fiber root post according to an embodiment of the present invention.

Fig. 2 is a schematic view showing the illumination of an optical fiber woven root post according to an embodiment of the present invention.

Fig. 3A is a schematic view showing an optical fiber member of an optical woven fiber root post according to an embodiment of the present invention.

3B is a schematic view of a fiber optic member of an optical woven fiber root post according to another embodiment of the present invention.

Fig. 4A is one of the illumination diagrams of the optical fiber member of the optical woven fiber root post according to an embodiment of the present invention.

Fig. 4B is a second schematic view showing the illumination of the optical fiber member of the optical woven fiber root post according to an embodiment of the present invention.

Fig. 5A is a schematic view showing a convex ring portion of an optical woven fiber root post according to an embodiment of the present invention.

Fig. 5B is a schematic view showing a convex ring portion of an optical woven fiber root post according to another embodiment of the present invention.

Fig. 6A is a schematic view showing the use of an optical woven fiber root post according to another embodiment of the present invention.

Fig. 6B is a schematic view showing the use of an optical woven fiber root post according to another embodiment of the present invention.

Figure 6C is a schematic view showing the use of an optical woven fiber root post according to another embodiment of the present invention.

Figure 7A is a schematic view of an optical woven fiber root post of another embodiment of the present invention.

Figure 7B is a schematic view of an optical woven fiber root post according to still another embodiment of the present invention.

Figure 7C is a schematic view of an optical woven fiber root post of still another embodiment of the present invention.

Figure 8 is a schematic view showing the illumination of an optical fiber woven root of another embodiment of the present invention.

9A to 9D are plan views of the body column of the optical woven fiber root post according to still another embodiment of the present invention.

10A to 10D are plan views of the convex ring portions of the optical woven fiber root post according to still another embodiment of the present invention.

Referring to FIGS. 1 and 2, an optical woven fiber root post 100 according to one embodiment of the present invention includes a body post 1 and a woven fiber member 2.

The body column 1 is made of a resin material, and the body column 1 includes a cylindrical surface 11, a receiving illumination portion 12, and a bottom portion 13.

The woven fiber member 2 is affixed and fixed to the body column 1. The woven fiber member 2 is formed by winding a plurality of fiber optic members 20, and the strong woven fiber member 2 formed by winding can enter The optical woven fiber root post 100 has a higher structural strength in one step. Each of the optical fiber members 20 has a light receiving end and a light emitting end. One light receiving end portion 21 of the woven fiber member 2 is composed of a light receiving end of a plurality of optical fiber members 20, and one of the woven fiber members 2 is light-emitting end portion. 22 is formed by a light emitting end of a plurality of optical fiber members 20. In the present embodiment, the woven fabric member 2 includes a central fiber shaft 23 and a plurality of braided fiber shafts 24. The central fiber shaft 23 passes straight through the woven fabric member 2, with a plurality of braided fiber shafts 24 staggered around the central fiber shaft 23. The central fiber shaft 23 serves as a support member to provide an additional fixing force to the chopped fiber shaft 24 and to increase the tensile strength in the vertical direction. Moreover, the fiber optic member 20 can be made of a material that is X-ray opaque, such that the optical woven fiber root post 100 can be visualized in an X-ray scan. In this embodiment, the body pillar 1 has a cylindrical shape. In other embodiments, the body pillar 1 may also have a square column shape (Fig. 9A), a pentagonal column shape (Fig. 9B), a hexagonal column shape (Fig. 9C), an octagonal column shape (Fig. 9D), or the like. The polygonal columnar shape prevents the optical woven fiber root post 100 from being rotated by the force after being placed in the root canal groove.

As shown in Fig. 2, the receiving and illuminating portion 12 of the body column 1 exposes the light receiving end portion 21 so that the woven fiber member 2 receives the light irradiated onto the receiving illuminating portion 12, the cylindrical surface 12 and the bottom portion 13 of the body column 1. The light emitting end portion 22 is exposed, and the light received by the woven fiber member 2 is transmitted to the light emitting end portion 22 to be irradiated to the cylindrical surface 11 and the bottom portion 13, that is, the light ray L. Since the light receiving end portion 21 of the woven fiber member 2 is constituted by the light receiving ends of the plurality of optical fiber members 20, and the light emitting end portion 22 of the woven fiber member 2 is constituted by the light emitting ends of the plurality of optical fiber members 20, The light intensity of the emitted light L is further enhanced, and the light emitting ends of the plurality of optical fiber pieces 20 respectively have different light exiting angles, so that the light L is more uniformly diffused, and the light can be further cured. Type adhesives are more fully polymerized. Of course, the present invention is not limited thereto. In other embodiments, the light ray L is also illuminated only on the cylinder 11 or only at the bottom portion 13 depending on the position at which the light emitting end portion 22 is exposed.

Please refer to FIG. 3A, which shows a fiber optic member according to an implementation of the present invention. 20. In the present embodiment, the optical fiber member 20 of the optical woven fiber root post 100 is a multilayer fiber, and the number of thermal expansion of each layer of the multilayer structure is gradually lowered from the inside to the outside. In this embodiment, the fiber optic member 20 includes a casing layer 201 and a core layer 202. In the present embodiment, the casing layer 201 surrounds a surrounding surface of the core layer 202 and has a coefficient of thermal expansion lower than that of the core layer 202, whereby the tensile strength of the fiber optic member 20 can be enhanced. The advantage of the arrangement of the two-layer fibers is that high tensile strength can be provided, thus providing high tensile strength to the optical woven fiber root post 100. Each of the layers of the multilayer structure may be formed by a long circular fiber, a hexagonal long fiber, or a long fiber. In the present embodiment, the shell layer 201 and the core layer 202 are formed by a long circular fiber. In other embodiments, the core layer 202 is formed from a hexagonal long fiber. As shown in FIG. 3B, the purpose of forming the hexagonal long fibers is to provide high tension of the woven fiber member 2 of the optical woven fiber root post 100. strength. In a preferred embodiment, at least one of the layers of the fiber optic member 20 is X-ray opaque such that the optical woven fiber root post 100 can be visualized in an X-ray scan.

Referring to FIGS. 4A and 4B, in the present embodiment, the refractive index of the shell layer 201 is lower than that of the core layer 202, so that the light L can be totally reflected along the inner core layer 202 to form a transfer. The light L emitted from the light source is irradiated into the core layer 202 of each of the optical fiber members 20, and since the core layer 202 is covered with the shell layer 201 having a large refractive index, the incident light L is in the core layer. The transfer is carried out in 202 to achieve the purpose of transmitting the light L by the fiber optic member 20. Preferably, the end of the fiber optic member 20 may be formed with an oblique angle to affect the light diffusion angle of the illuminating light L, as shown in Fig. 4B. Preferably, both the shell layer 201 and the core layer 202 are made of optical glass, thereby increasing the difference in refractive index between the shell layer 201 and the core layer 202, and increasing the numerical aperture. Increasing the light diffusion angle causes the amount of light incident and the amount of light emitted from the fiber optic member 20 to be larger to further enhance the light flux of the light beam L, thereby further enhancing the light intensity of the light L emitted from the light emitting end portion 22 of the woven fiber member 2. In addition, in the embodiment, the shell layer 201 and the core layer 202 are integrally formed to improve the structural strength of the fiber optic member 20, and thus The high woven strength of the optical woven fiber root post 100 can be further provided.

Referring to FIGS. 5A-5B and 6A-6C, in a preferred embodiment, the optical woven fiber root post 100 further includes a convex ring portion 3 made of a resin material. The convex ring portion 3 is convexly protruded from the body column 1 along the radial direction of the body column 1. The convex ring portion 3 is disposed to fill the cavity of the root pipe C. As shown in FIG. 6A, the illumination diagram is as shown in FIG. Figure 8 shows. The convex ring portion 3 can also be used as a dental pier supporting the dental ridge complex P, as shown in Figs. 6B and 6C. Preferably, the woven fiber member 2 is further disposed and fixed to the convex ring portion 3, whereby the convex ring portion 3 can also receive and emit light as the body column 1, further shortening the hardening time of the photocurable adhesive. . In these embodiments, the collar portion 3 is disposed on the body post 1 in a nested manner. However, the present invention is not limited thereto, and the collar portion 3 may be integrally formed with the body post 1. In addition, the convex ring portion 3 may be disposed on the top of the body column 1 in other manners, or may be disposed on the column body of the body column 1 as shown in FIG. 7A or as the column body of the body column 1. Figure 7B shows. In the present embodiment, the convex ring portion 3 has a hollow cylindrical shape. However, the present invention is not limited thereto, and the cylindrical surface 11 of the body column 1 may also be wavy (FIG. 7C) or other irregular shape to reduce the optical woven fiber root post 100 after being placed in the root canal groove due to the body column 1 and The contact surface of the root canal groove is smooth, which results in the possibility that the optical woven fiber root post 100 is easily released. In other embodiments, the convex ring portion 3 may also have a hollow square column shape (Fig. 10A), a hollow pentagonal column shape (Fig. 10B), a hollow hexagonal column shape (Fig. 10C), and a hollow octagonal column shape (10D). Figure), or other hollow polygonal columnar shape, to avoid the possible rotation of the optically woven fiber root post 100 after being placed in the root canal.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalents of the present invention and the equivalents of the drawings are all included in the present invention. Within the scope of protection, it is given to Chen Ming.

100‧‧‧Optical woven fiber roots

1‧‧‧ body column

11‧‧‧ cylindrical

12‧‧‧ Receiving Irradiation Department

13‧‧‧ bottom

2‧‧‧woven fiber components

20‧‧‧Optical fiber parts

21‧‧‧Light receiving end

22‧‧‧Light emitting end

23‧‧‧Central fiber shaft

24‧‧‧Curled fiber shaft

Claims (10)

An optical woven fiber root post comprising: a body column made of a resin material, the body column comprising a cylindrical surface, a receiving illumination portion, and a bottom portion; and a woven fiber member disposed to be fixed to the body a column, the woven fiber member is formed by winding a plurality of fiber optic members, each of the fiber optic members having a light receiving end and a light emitting end, and the light receiving end of the woven fiber member is composed of the plurality of fiber optic members a light receiving end, wherein the light emitting end of the woven fiber member is formed by the light emitting end of the plurality of optical fiber members, wherein the receiving and illuminating portion of the body column exposes the light receiving end portion, so that the light receiving end portion The woven fiber member receives the light irradiated onto the receiving illuminating portion, and the light emitting end portion is exposed on the cylinder surface and/or the bottom portion of the body column, so that the light received by the woven fiber member is transmitted to the light emitting end portion. Irradiated on the cylinder and/or the bottom. The optical woven fiber root post of claim 1, wherein the woven fiber member comprises: a central fiber shaft passing straight through the woven fiber member; and a plurality of braided fiber shafts interlaced around the central fiber axis. The optical woven fiber root post according to claim 1, further comprising a convex ring portion protruding outwardly from the body column along a radial direction of the body column, the convex ring portion being made of a resin material . The optical woven fiber root post according to claim 3, wherein the woven fiber member is further disposed to be fixed to the convex ring portion. The optical woven fiber root post of claim 3, wherein the convex ring portion is sleeved on the body post. The optical woven fiber root post of claim 1, wherein the optical fiber member comprises a casing layer and a core layer. The optical woven fiber root post according to claim 6, wherein the shell layer has a thermal expansion coefficient lower than a coefficient of thermal expansion of the core layer. The optical woven fiber root post of claim 6, wherein the shell layer has a lower refractive index than the core layer. The optical woven fiber root post according to claim 6, wherein the shell layer and the core layer are made of glass. The optical woven fiber root post according to claim 6, wherein the shell layer and the core layer are integrally formed.