CN111388111A - Titanium material root canal plug tip and equipment - Google Patents

Abstract

The invention proposes a titanium root canal plug tip and equipment, which aims to solve the problems of low efficiency and high difficulty in filling fine root canals in the prior art. The titanium material root canal plug tip is made of medical pure titanium or titanium alloy as a whole (one piece), and is divided into an apical segment and a handle segment in the axial direction; the apical segment is conical, and the The tip part is provided with an external thread; the handle segment is provided with a scale mark or structure, and the handle segment is also provided with at least one notch, so that the excess part of the crown can be cut off after the titanium root canal tip is filled in place. The invention can effectively reduce the amount of preparative cutting damage to the inner wall of the root canal of the tooth, reduce the difficulty of root filling, and can achieve a tight and stable root apex sealing effect without repeated apex testing, and can achieve one-step completion.

Description

Titanium root canal tip and equipment

technical field

The invention relates to a root canal filling device for dental root canal treatment.

Background technique

Root canal therapy is the main treatment for pulp and root lesions.

At present, the standard process of dental root canal treatment is: tooth pulp opening, pulp removal, tooth length measurement, root canal preparation, disinfection, and finally filling each tooth root with root canal filling material (gut gum tip) and root filling agent. The structure shown in Figure 1.

At present, no matter which brand of gutta percha tip is on the market, the precision of the tip diameter is not ideal. It needs to be trimmed repeatedly when used, and the texture is soft, and the tip of the gutta-percha tip is easy to bend when it encounters resistance in the root canal or gets wet. It is time-consuming, labor-intensive, and material-wasting when filling tiny root canals.

In clinical practice, the filling of a root canal can take as little as a few minutes to tens of minutes, and a lot of gutta-percha tips will be wasted. The cutting preparation of the inner wall of the root canal damages more healthy tooth tissue in the root canal, and also puts forward high technical requirements for the dentist.

Chinese patent document CN204501016U discloses a gutta-percha tip. As shown in Figures 2 and 3, the conical cylindrical gutta-percha tip body 1 extends from the large diameter end to 25mm in the axial direction, and a ring is arranged every 5mm. Groove 2, two rows of arc-shaped grooves 3 are arranged axially symmetrically on each 5mm shaft section, the number of arc-shaped grooves in each row is four, and the shaft section is equally divided at 1mm intervals. The arc length is one quarter of the corresponding circle. The annular groove and the arc-shaped groove mainly function as a scale mark, and at the same time, it is also convenient to avoid deformation of the gutta-percha tip when the length of the gutta-percha tip is truncated.

Chinese patent document CN108354681A discloses an integrated gutta-percha tip containing silver-titanium alloy root canal retention and root apex sealing. As shown in Figures 4 and 5, the conical gutta-percha tip is provided with a retaining section 1 and a closing section 2 in sequence from top to bottom, the retaining section 1 is made of silver-titanium alloy, and the closed section 2 is made of gutta-percha , the lower end of the retaining section extends downward with a connecting section 3 for combining the retaining section 1 and the closing section 2, and the connecting section is also made of silver-titanium alloy, and the upper end of the retaining section is provided with a display for displaying gutta percha. Length of scale segment 4. An outwardly protruding helical blade 5 is arranged at the connecting section, so as to facilitate the axial connection of the closing section (gut gutta) and the connecting section 3 tightly in the process of preparing the gutta-percha tip.

However, the solutions provided in the above-mentioned documents still cannot fundamentally solve the problems of low efficiency and difficulty when filling tiny root canals.

SUMMARY OF THE INVENTION

The invention proposes a titanium root canal plug tip, which aims to solve the problems of low efficiency and high difficulty in filling fine root canals in the prior art.

In order to achieve the above objects, the present invention proposes the following solutions.

A titanium root canal plug tip, which is made of medical pure titanium or titanium alloy as a whole (one piece), and is divided into an apical segment and a handle segment in the axial direction; the apical segment is conical and is in the apical segment The tip part of the crown is provided with an external thread; the handle segment is provided with a scale mark or structure, and the handle segment is also provided with at least one notch, so as to cut off the excess part of the crown after the titanium root canal tip is filled in place.

Further, the whole of the apical segment is provided with external threads.

Further, the external thread is a V-shaped thread (Sharp V Thread). Secondly, you can also consider the whitworth thread (whitworth Thread).

Further, the taper of the apical segment is consistent with the taper of the hand-expanding needle and the machine-expanding needle of the same specification used for dental root canal preparation.

Further, the scale marks are digital annular scale lines. Alternatively, it can also be considered to form a scale indicating structure by setting concave/convex color lines.

Further, the notch is located in the middle of the handle section.

Further, the handle segment is a cylinder with a single-sided or double-sided cutting plane, and the cutting plane is axially parallel to the cylinder, so as to facilitate hand-held operation.

Alternatively, the handle segment can also be a flat part in whole or in part that is parallel to the axial direction of the handle, so as to facilitate hand-held operation.

The present invention also correspondingly provides a dental root canal treatment device, comprising the above-mentioned titanium material root canal plug tip and an electronic root length measuring instrument, wherein the electronic root length measuring instrument is electrically connected to the handle section of the titanium material root canal plug tip, using for direct measurement of tooth length.

Compared with the prior art, the present invention has the following beneficial effects:

1. The whole is made of medical pure titanium or titanium alloy, and the apical section of the root canal plug is provided with an external thread. On the one hand, the external thread rotating edge is conducive to embedding the tooth, effectively reducing the amount of preparative cutting damage to the inner wall of the root canal of the tooth. , reducing the difficulty of root filling, and because the root canal tip itself has good electrical conductivity, it can also be directly connected to the electronic root length measuring instrument, and rotate while measuring, without repeated testing of the tip, to achieve fast and accurate root filling in place; on the other hand The thread groove naturally has a larger surface area and space, and the thread groove is filled with medicine, which can maintain the maximum density of the root canal filling for a long time, and achieve the most compact, complete and stable root apex sealing effect, and the amount of medicine carried at one time can usually meet the requirements. Thus, it can be achieved in one step (without the need for multiple dips).

2. The handle part of the pure titanium root canal plug is retained in the crown cavity, which can replace root canal nails or fiber posts. The integrated apical thread and handle design eliminates the need for secondary root canal nails or fiber posts, reduces excessive cutting of healthy tooth tissue, saves time and money, and improves tooth fracture resistance.

3. Titanium material has no magnetic field, better safety, and does not affect medical examinations such as X-ray and nuclear magnetic resonance;

In addition, the traditional permanent root filling material gutta-percha tip is composed of beta-phase gutta-percha (20%), zinc oxide (mostly), wax, resin, metal salt, pigment and pigment, etc. The composition is complex, and its safety and biocompatibility In theory, there is a certain uncertainty;

The present invention is made of medical pure titanium or titanium alloy as a whole, and its biocompatibility and safety are more reliable. Pure titanium is widely used in the medical field, such as artificial roots for implants, artificial joints for orthopaedics, cranial patches, hemostatic titanium clips after laparoscopic surgery, etc. It is currently the most ideal biological material implanted in the human body.

Description of drawings

Figure 1 is a schematic diagram of the structure of the gutta percha tip inside the tooth. Among them, 101- gutta-percha tip, 102- crown cavity filling material, 103- root canal filling agent.

FIG. 2 and FIG. 3 are schematic structural diagrams of the solution of the patent document CN204501016U, wherein FIG. 3 is a schematic cross-sectional view at A-A in FIG. 2 . Description of the symbols in the figure: 1- gutta-percha tip body; 2- annular groove; 3- arc groove.

4 and 5 are schematic structural diagrams of the solution of the patent document CN108354681A, wherein FIG. 5 is a cross-sectional view of FIG. 4 . Description of the numbers in the figure: 1-retention section; 2-closed section; 3-connection section; 4-scale section; 5-spiral blade.

FIG. 6 is a schematic structural diagram of an embodiment of the present invention.

FIG. 7 is a schematic view of the side of the embodiment shown in FIG. 6 .

FIG. 8 is a schematic cross-sectional view of the handle section of the embodiment shown in FIG. 6 .

6-FIG. 7 description of the reference numerals: 1-apical segment; 2-handle segment; 3-external thread; 4-digital ring scale; 5-cut plane; 6-notch.

Detailed ways

Below in conjunction with the accompanying drawings, the present invention will be further described in detail through embodiments.

As shown in FIG. 6 to FIG. 8 , the pure titanium root canal plug tip of this embodiment is made of medical pure titanium metal material, and is divided into a root tip section 1 and a handle section 2 in the axial direction.

The apical segment is conical and has an external thread 3 .

The handle segment is untapered and threaded and has a digital ring scale 4.

The handle segment is a cylinder with a single-sided cutting plane 5, and the cutting plane is parallel to the axial direction of the cylinder, so as to facilitate hand-held operation. The junction of the cutting plane 5 with the conical apical segment 1 can be a vertical plane as shown in FIG. 7 , or a sloped transition can be used.

The taper of the apical segment of the pure titanium root canal plug is consistent with the taper of the hand-expanding needle and the machine-expanding needle for dental root canal preparation, so the series of pure titanium root canal plugs include 02, 04, 06, and 08 tapers.

In order to seal the apical foramen narrow area of the tooth more tightly, a small amount of the apical segment is screwed into the root canal tooth tissue. The diameter of the 02, 04, 06, and 08 taper pure titanium root canal plugs is larger than that of the same taper and the same specification. The diameter of the tip of the machine expanding needle is 0.03mm, which can be (0.15+0.03)mm, (0.20+0.03, mm, (0.25+0.03)mm, (0.30+0.03)mm, (0.35+0.03)mm, (0.40+0.03) mm, (0.45+0.03)mm diameter specifications. Among them, the diameter of the 02 taper root canal tip tip can be made smaller, such as 0.08mm, 0.10mm, etc., and because of the extremely small radial size, the root tip section is It can also be without thread, and the handle segment can no longer be provided with a flat surface, only a ring scale.

The length of the apical section of the pure titanium root canal plug has different specifications such as 6mm to 16mm.

The handle section of the pure titanium root canal tip is 15mm long, and a notch 6 (easy-to-break groove) is designed in the middle 1/2 of the handle. Cut off the excess part of the crown.

The method of using the pure titanium root canal tip is as follows:

After routine root canal preparation and disinfection, fine-tune the pure titanium root canal tip to the same direction as the root canal of the tooth, hold the handle, insert the root filling agent into the root canal with the helical part of the root canal, and place the pure titanium tip according to the scale on the handle. Rotate into place and snap off 1/2 of the groove in the handle. The next step is to clean the excess root filling agent in the crown cavity, inject light-curing fluid resin to adjust the occlusion, and then complete the root canal treatment of a tooth.

This embodiment can achieve a simpler, more efficient, more accurate, high-density and high-quality clinical root filling effect, and only needs 1/2 or 1/3 or even shorter time of traditional gutta-percha root filling.

Claims (9)

1. A titanium material root canal plug tip is characterized in that: the whole body is made of medical pure titanium or titanium alloy and is axially divided into a root tip section and a handle section; the apical section is conical, and the tip part of the apical section is provided with an external thread; the handle section is provided with scale marks or structures and is also provided with at least one notch so as to cut off the redundant part of the dental crown after the titanium material root canal plug tip is filled in place.

2. The titanium material root canal plug according to claim 1, wherein: the root tip section is integrally provided with external threads.

3. The titanium material root canal plug according to claim 1 or 2, wherein: the external Thread is a V-shaped Thread (Sharp V Thread).

4. The titanium material root canal plug according to claim 1, wherein: the taper of the apical section is consistent with the taper of a hand-expanding needle and a machine-expanding needle with the same specification, which are prepared for dental root canal preparation.

5. The titanium material root canal plug according to claim 1, wherein: the scale marks are digital annular scale marks.

6. The titanium material root canal plug according to claim 1, wherein: the notch is located handle section middle part.

7. The titanium material root canal plug according to claim 1, wherein: the handle section is a cylinder with a unilateral or bilateral sectioning plane, and the sectioning plane is axially parallel to the cylinder so as to facilitate handheld operation.

8. The titanium material root canal plug according to claim 1, wherein: the handle segment has a flattened portion axially parallel to the handle for hand-held operation.

9. A dental endodontic apparatus, characterized in that: comprising the titanium material root canal plug tip of claim 1 and an electronic root length measuring instrument electrically connected to the handle section of the titanium material root canal plug tip for direct measurement of the length of the tooth body.

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