JP2009045470A - Direct measurement of interdental distance and positioning and guide ingrowth of oral orthodontic micro-implant - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method to accurately and quickly judge an implant position of a micro-implant against traditional systems to measure from a copper wire and calculate to decide a micro-implant implanting position. <P>SOLUTION: A stereoscopic network construction 3 with basic measurement unit 2 is made of a radiograph impermeable material, attached to the gingiva to the cheek side or tongue side of a work model for micro-implant, fixed to the dental bite face using a silicone print mold material, irradiated by parallel X-ray irradiation method with an X-ray holder before hardening the material, taken off from the work model after hardening the material, placed in the oral cavity of a patient, inspected with the parallel X-ray irradiation method or the panorama dental X-ray to know a distance between two teeth by an X-ray film and decide the implant position of the micro-implant and to decide the position. The distance between two teeth and the micro-implant implanting position are decided by the stereoscopic network construction, and a drill or the micro-implant is accurately put into a dental groove bone by a right angle system using a guide tube to avoid damage of the neighboring gingiva. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

In the orthodontic department of the present invention, when contrasting the patient's oral cavity with X-ray photography, the guide space is determined after determining the interval of the two teeth and the implant position of the microimplant directly. To guide the micro-implant at right angles to the correct position of the bone and to avoid root damage due to the patient lying down or the operating position of the doctor.

Orthodontic microimplants have been used in the last few years, and one of the reasons for their failure is damage to the adjacent roots, because traditional positioning methods are inaccurate figures, Because of mistakes. Traditionally, orthodontic practitioners bind with 0.4-0.5 mm brass wire to two interdental spaces that embed microimplants. Alternatively, after the X-ray image is taken by fixing the orthodontic hole or bow thread with a stainless steel line, the position is roughly estimated by comparing one reference line with the actual stainless steel line or brass wire. As shown in FIG. 14, the micro-implant is buried by drilling or directly. As shown in FIGS. 15, 20, and 21, FIG. 20 is a diagram of Microimplants in Orthodontics, Dentos, Inc. Jae-Hyun Sung et al., Page 50, Figure 4-34.

The correct measurement does not appear on the x-ray, so do not immediately find the correct position in the patient's oral cavity, use the actual length of the reference line and the length in the x-ray, calculate by percentage, and then In measuring the actual distance, it is time consuming and not accurate, and it is easy to take off the reference line due to improper fixation in the patient's oral cavity or during x-ray inspection. Moreover, there is no scientific repeatability, and the fixed positions of the first x-ray and the second x-ray are different and cannot be exactly the same position.

Also, determine the location of the micro-implant, and always determine whether the guide tube should be used according to the skill level of the doctor, because the direction of implantation depends on the operating position of the oral doctor However, there is an error depending on the angle of the treatment chair and the direction of the line of sight that the patient lies on, and the position is selected correctly, but the adjacent root is damaged by the wrong direction, and it is correct for beginners using the guide tube The micro-implant should be introduced into position or pre-drilled into the sulcus bone between the two teeth at a right angle.

In order to solve the problem of how far the interval between two teeth in a traditional diagnostic system can not be implanted and the implantation position cannot be immediately determined, The material is placed between two teeth using a three-dimensional network structure with basic survey units.
The fixed three-dimensional reticulated structure uses a silicone printing mold or resin that has been mulled by an oral doctor, and fixes it to the tooth biting surface. Using the x-ray holder, the material is marked, and when the patient takes an x-ray, the directions are parallel. Alternatively, after taking a panoramic tooth x-ray, it is clear on the x-ray which point is the implantation point of the micro-implant and what is the distance between the two teeth.

Since the present invention is fixed to the tooth biting surface, the patient's upper and lower teeth are bitten, pre-drilled, or micro-implant is implanted, and the tooth root is damaged by implanting 3 to 4 mm. Then the patient feels different and the doctor knows the symptoms.

Once the implantation position of the micro-implant is determined, the present invention has a guiding tube having the same or a multiple size as the basic surveying dimension, for example, the basic surveying dimension is 0.7 mm, and the diameter of the micro-implant is 1 If the bone is too stiff to find the implantation position at 2 mm, it must be pre-drilled, 0.5 mm in diameter, 4-5 mm in height and 0. Pre-drill with a 2 mm non-removable guide tube on the square. If the bone is not hard, then take the whole fixture from the patient's mouth and cut it into one 1.4mm x 1.4mm cube, that is, twice the basic survey unit, again with a diameter of 1 Guided by a removable guide tube having a diameter of 0.2 mm and a thickness of 0.2 mm, a self-threading implant having a diameter of 1.2 mm is then introduced by guiding the guide tube. Implant.

The diameter of the guide tube is the same as the diameter of the drill or implant, and the difference in distance between the guide tube and the basic survey unit is compensated by the thickness of the guide tube, so the guide tube is accurately placed on the three-dimensional network structure. Since the end of the guide tube is serrated and the gingiva is formed in an annular shape, the drill or microimplant along the guide tube enters the expected direction at a right angle and lies on the patient's side. There is no error regardless of the operating angle between the doctor and the doctor.

There is no need for doctors to further survey from traditional copper wires and calculate the proportions to select the appropriate orthodontic microimplant. If a solid network structure with a basic survey unit is pasted, a parallel X-ray inspection or panoramic tooth x-ray will know the most appropriate position, and using a lead tube, the doctor will be correct There is no error despite the angle of the chair where the patient lies down and the doctor's work position, entering the sulcus bone from the correct position in a right angle manner.

Please refer to Fig.10.

Indirect method: First, determine which part of the orthodontic microimplant to be implanted in the patient's working plaster model and what is the diameter of the microimplant. Since a 2 mm micro-implant is implanted between the patient's first and second premolars, a three-dimensional network structure with an appropriate basic survey unit is selected. 7mm, you can fine-tune the outer shape of this structure and stick it on the gums with different human profile (as shown in Fig. 1), and fix them with a plaster model gum using a soft wax In principle, its length is that it cannot irritate the oral mucosa and the floor mucosa.

In the future, an x-ray holder used for the x-ray parallel irradiation method is searched for, and it is prepared to position the future parallel x-ray irradiation with a pencil on the model.

After processing the silicon stamping material, fix the mesh to the tooth biting surface (Fig. 2) after mixing, and place it on the stamping material by parallel irradiation with an x-ray holder before the material hardens In the future, the position of the patient's mouth cannot be changed (Fig. 3) (Fig. 4).

The doctor feels the general technology, pre-drills using a non-removable guide tube (Fig. 15), and cuts the solid reticulated structure into one 1.4mm x 1.4mm cube (Fig. 7) (Fig. 8), using a detachable guide tube (Fig. 16) (Fig. 17) with a diameter of 1.2mm and a thickness of 0.2mm, and a mesh structure with a diameter of 1.2mm Place the implant and implant the implant along the guide tube (Fig. 10) and when the implant enters 3-4mm, take the removable guide tube and place all the implants into the sulcus bone Implant.

If the doctor is confident in his technique and confirms that the implantation direction is accurate, he directly enters a drill with a diameter of 0.5 mm from the basic unit square (Fig. 12). Then, implant an implant that is 1.2 mm.

Using a self-threading implant with a diameter of 1.2 mm, the doctor cuts a single 1.4 mm x 1.4 mm cubic mesh at the center of the implant (Figure 7). (FIG. 8), a microimplant is implanted (FIG. 9).

Direct method: If there is no bracket on the patient's tooth surface, choose a solid network structure with the appropriate basic survey unit and fix it to the tooth surface with a soft wax, and the bracket will be on the tooth surface In this case, it is possible to temporarily fix the network structure by trimming the three-dimensional network structure of the part, avoiding the bracket, and fixing it to the bracket using a softer wax, and to fix the hole of the bracket. Replenish and fix the surface of the three-dimensional network structure with a silicon printing mold in the future, and then take one parallel x-ray (FIG. 20).

Find the most suitable micro-implant position by x-ray, and in this case, count the 9th case from left to right and the 6th case from top to bottom. A single symbol (red part) (Fig. 21) is attached on the net, and a self-threaded orthodontic implant with a diameter of 0.7 mm is used as the implantation point. At the same time of implantation, we know well whether the distance between the microimplant and the two teeth is sufficient (FIG. 22).

In the above example, the basic survey unit is 0.7 mm, and only one exemplary embodiment, the medical person who is familiar with this case generally changes or modifies the equivalent according to the spirit of the invention, and the basic survey unit. Or the net shape should all be within the scope of this case's rights requirements.

Indicates that a three-dimensional network structure having a basic surveying unit is attached with a soft wax with a model of work plaster with a buccal gum between the first and second premolars of the lower jaw. Represents fixing a three-dimensional network structure with a tooth-engaging surface with a silicon printing mold. Represents the positioning of parallel X-rays with an X-ray holder before the silicon printing mold is set. Represents taking the symbol left on the X-ray holder after the silicon printing mold is cured. Represents that this structure can be taken and transferred to the patient's oral cavity to maintain parallel X-ray irradiation. Represents a practical situation in which X-ray survey is performed using a net-like structure with a basic survey unit in the mandible of the human body. Represents taking a structure and polishing a square with a double basic survey unit with a dental drill needle. Indicates that after refining a square with two basic survey units, it does not change its position when it enters the patient's mouth again. Represents drilling an orthodontic micro-implant from a positioning grid using a self-threading implant. Represents the use of a removable guide tube to enter the orthodontic microimplant into the positioning grid in a right angle manner. Represents the use of a non-removable guide tube to enter the orthodontic microimplant into the grid positioned in a right angle manner. Means to drill directly from the grid. Traditionally represents a positioning system that is tied between two teeth with a brass wire. Indicates that orthodontic microimplants that are traditionally implanted are implanted at an estimated value from brass wire. Represents a side view and an orthographic view of a non-removable guide tube. Represents an orthographic projection when the removable guide tube is opened and closed. Represents a side view when the removable guide tube is closed. Microimplants in Orthodontics, Dentos, Inc. Jae-Hyun Sung et al., Page 50, Figure 4-34. Represents a practical situation where a traditional brass wire is positioned on the lower jawbone of a real human body and then surveyed with x-rays. Indicates that a photograph of a three-dimensional network structure is pasted directly on the oral cavity of a patient wearing a corrector and parallel X-ray irradiation is taken. Represents the situation displayed by the x-rays of the patient of the three-dimensional network structure, a photograph in which the microimplant can be implanted at any point, and the red dot being the implantation point. Represents a state of displaying the patient's oral cavity and the microimplant after implantation of the microimplant.

Explanation of symbols

1. 1. Silicon printing mold material Basic survey unit 3. 3. Positioned three-dimensional network structure 4. Orthodontic microimplants 5. When the removable guide tube closes 6. Detachable guide tube handle 7. x-ray holder symbol for printing molds 8. Screwdriver for orthodontic microimplants 9. Actual image of a three-dimensional network structure with a basic survey unit in x-rays 10. Fixing soft wax X-ray holder 12. X-ray film13. Before the silicone printing mold is cured 14. X-ray guide 15. Drill bar 16. Handpiece 17. 18. Two basic survey unit squares Non-removable guide tube 19. Non-removable guide tube handle 20. Drill 21. Brass wire 22. 23. Serrated and circular. When the removable guide tube opens 24. Points for implanting micro-implants

Claims (3)

Using a three-dimensional reticulated structure with a basic survey unit made of X-ray radiopaque material, using direct or indirect methods, put it on the cheek or lingual gingiva between the patient's two teeth, A parallel x-ray irradiation panoramic tooth x-ray measures the interdental space between the x-ray film and the oral cavity to determine the device for immediate implantation of the microimplant. There are a guide tube that can be removed and a guide tube that cannot be removed. Gingival tissue can be cut in a sawtooth shape at the ends of the two guide tubes in an annular shape. Guide the micro-implant or pre-drill with a removable guide tube and enter 3-4mm, the direction will be accurate, take the removable guide tube and continue implantation or drilling, Brand micro-implant heads are larger than the diameter of the implant, ie the diameter of the guide tube. A non-removable guide tube is used for the pre-drill, and its diameter is the diameter of the pre-drill. The diameter of the lead tube is the basic survey unit or several times, eg, 2 or 3 times, and the diameter of the micro-implant or drill that the physician wishes to implant. The guide tube is firmly placed on the mesh and does not loosen, and the difference in distance between the guide tube and the mesh is compensated by the thickness of the guide tube and placed firmly on the three-dimensional mesh structure.

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