WO2018228482A1 - Positioning and guiding assembly for dental implant - Google Patents

Abstract

A positioning and guiding assembly (100) for a dental implant, comprising: a positioning rod (1), a male positioning component (2), a female snap-fit component (3), a connection component (4), and at least two guiding components (5, 5a, 5b, 5c). The positioning rod (1) is adapted to be inserted into a hole (611) drilled in advance in an oral model (6) of a patient. The male positioning component (2) is provided with a through hole (21) which corresponds to the positioning rod (1) and is adapted to be sleeved on the positioning rod (1). The female snap-fit component (3) is positionably assembled to the male positioning component (2). The connection component (4) is fixedly connected to one side of the female snap-fit component (3), and is provided with an oral contact surface that matches the contour of the oral cavity of the patient for being fit to the contour of the oral cavity. Any of the guiding components (5, 5a, 5b, 5c) is positionably assembled to the female snap-fit component (3), and each of the guiding components (5, 5a, 5b, 5c) is provided with a notch (G). A curved guiding surface (51) is formed at the notch (G) to guide a surgeon to drill a hole for a dental implant.

Description

Dental implant positioning guide assembly Technical field

The present invention relates to a positioning guide assembly, and more particularly to a dental implant positioning guide assembly.

Background technique

Dental implant surgery is a method of repairing the missing teeth based on the lower half of the implant implanted in the bone tissue to support and fix the upper part of the implant. Since the function, structure and aesthetic effect of implants are very similar to those of natural teeth, dental implant surgery has become the preferred method of repair for more and more patients with missing teeth. Before implanting the implant, the dentist needs to drill a dental implant hole in the alveolar bone to accommodate the implant by implant surgery. The dentist needs to use a reamer from small to large to slowly prepare the implant hole. A slight deviation will lead to the failure of the implant surgery and the expected repair effect. Implantation holes with incorrect position, angle and depth will damage potential danger areas such as adjacent teeth, nerves, and superior sinus. It will also increase bone resorption around the implant, disappearance of gingival papilla, mucosal atrophy around the implant, and failure of implant surgery. Probability.

The traditional method of implant surgery is to analyze and formulate the relationship between the bones around the implanted area displayed by the dental X-ray film. The dentist can only infer the three-dimensional anatomical relationship through the two-dimensional image in the actual clinical operation. At the time, all operations can only be carried out by the experience of the dentist, and the original plan may not be implemented accurately. Although digital dental implant guide technology has also appeared, that is, the use of computer to observe the morphological aspects of the humerus, measurement and take into account the post-repair and other factors for comprehensive consideration, generate a three-dimensional guide model file for full-port scanning 3D printing, but design, Long print production cycle, single missing teeth and multiple missing teeth need to print full-mouth scanning guides, expensive and long waiting time, which makes patients often unacceptable, and has certain difficulty in clinical promotion. Due to the long training cycle of the design software and the high requirements for the hard equipment of the oral medical institution, it is basically required to be sent to an external processing unit for manufacturing and cannot be directly carried out in the dental clinic. Therefore, the dentist needs to modify and adjust the program during clinical use. It is extremely inconvenient to communicate with external processing units.

In addition, Chinese mouth-to-mouth is generally too small, and the digital 3D printing guides using the full-mouth scanning described above have a problem of small operating space in the patient's mouth, especially in the posterior region, which is difficult to implant, and greatly increases the dental implant operation. Difficulty. According to the existing literature in the field of implant surgery, the ideal implant placement position (the position of the implant hole) is located at least 2 mm from the buccal side and 1 to 3 mm from the tip of the neck (Cemento-enamel junction; CEJ). At least 1.5 to 2 mm from the adjacent teeth, the three-dimensional placement of the implants (buccal, near telecentric, apical coronal) is critical to the success and aesthetics of implant implantation.

Moreover, in the prior art, the full-mouth scanning guide plate includes a guiding hole for guiding the dentist, which is required to be completed in 3D printing, so that different guide plates will be customized according to the needs of each patient, and printed out. The guide holes cannot be replaced, so that it is not possible to mass-produce a general-purpose specification, which is inconvenient for the dentist to use. Also because of the customized relationship, there will be problems of excessive cost.

In summary, the problem with the prior art is that the current implant surgery has the problem of low implant precision and difficulty in completing the production quickly by the dental chair, and the digital 3D print guide of the full-mouth scan has a single missing tooth. And many missing teeth need to print full guides, can not mass-produce common specifications, high cost and long waiting time.

Summary of the invention

In view of the prior art, the dental implant surgery has the problem of low implant precision and can not be completed completely by the dental chair, and the full-scan digital 3D print guide has a single missing tooth and multiple missing teeth. Both need to print the full auxiliary guide, need to be customized, can not mass-produce common specifications, high cost and long waiting time. A primary object of the present invention is to provide a dental implant positioning guide assembly.

The present invention solves the problems of the prior art, and the necessary technical means is to provide a dental implant positioning guide assembly for a surgical performer to drill at least one of the alveolar bones in one of the patients' mouths. An implant hole and includes a positioning rod, a convex positioning component, a concave engaging component, a linking component and at least two guiding components.

The positioning rod is inserted into a bore drilled in advance in an oral cavity model of the patient. The protruding positioning component defines a through hole corresponding to the positioning rod for being sleeved on the positioning rod. The female snap-fit assembly is positionally mountable to the raised positioning assembly. The link assembly is secured to one side of the female snap-fit assembly and has an oral contact surface that conforms to the oral contour of one of the patient for engaging the oral contour. Any one of the guiding components is positionally assembled to the concave engaging component, and each guiding component is provided with a notch, and a curved guiding surface is formed at the notch for the operator to receive the curved type At least one implant hole is drilled by the guiding surface.

Wherein, after the inner concave engaging component is positionally assembled to the convex positioning component, the surgical performer fixes the linking component to the concave engaging component, and replaces the protruding positioning component and the positioning rod into the guiding component. In one case, the link assembly, the concave engaging component and the corresponding guiding component are finally placed in the oral cavity of the patient, and the oral contour is engaged by the linking component to guide the drilling of at least one dental implant hole.

On the basis of the above-mentioned necessary technical means, one of the auxiliary technical means derived from the present invention is that the positioning rod in the dental implant positioning guide assembly has an upper half and a lower half, and the upper half is a trapezoidal cylinder. The lower half is a cylinder, the upper half is thicker than the lower half, and the upper half is a thick and thin trapezoidal cylinder. The upper half has a circular cross section and a longitudinal section with a trapezoidal shape.

On the basis of the above-mentioned necessary technical means, one of the auxiliary technical means derived from the present invention is that the convex positioning component in the dental implant positioning guide assembly has an engaging groove on each side thereof.

Based on the above-mentioned necessary technical means, one of the auxiliary technical means derived from the present invention is to position the concave engagement component in the dental implant positioning guide assembly with two engaging projections on one side of the link assembly. The two engaging protrusions are used for fixing the engaging grooves of the protruding positioning component.

On the basis of the above-mentioned necessary technical means, an auxiliary technical means derived by the present invention is to make the two sides of the guiding component in the dental implant positioning guiding assembly have an assembly groove, and the assembly groove is used. The two snap-fit bumps of the female snap-fit assembly are positionably assembled.

On the basis of the above-mentioned necessary technical means, one of the auxiliary technical means derived from the present invention is that the guiding assembly in the dental implant positioning guiding assembly is four guiding assemblies, and the four guiding guides are provided. The curved radius of the curved guiding surface of the assembly is 2.2 mm, 2.8 mm, 3.5 mm and 4.2 mm, respectively.

On the basis of the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is that the link assembly in the dental implant positioning guide assembly is composed of a light-curing material and is fixed by a light curing method. The snap fit component.

On the basis of the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is to make the link assembly and the concave engagement component in the dental implant positioning guide assembly integrally formed by 3D printing. .

On the basis of the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is to fix the link assembly in the dental implant positioning guide assembly by means of hot-melt fixing of the concave engagement assembly.

On the basis of the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is to fasten the link assembly in the dental implant positioning guide assembly and engage the concave engagement component.

On the basis of the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is to position the positioning rod, the protruding positioning component, the concave engaging component, the linking component and the guiding component in the dental implant positioning guiding assembly. They are all made by 3D printing.

On the basis of the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is to position the positioning rod, the protruding positioning component, the concave engaging component, the linking component and the guiding component in the dental implant positioning guiding assembly. They are all made by pottery casting.

As described above, the dental implant positioning guide assembly provided by the present invention can provide a complete preoperative information of the dental implant surgery, including the buccal and lingual side, the near telecentricity, the direction and the angle, and the dental chair. A solution for designing and developing dental implant guides can be completed. The dentist gets the best position of the implant to reduce the chance of implant complications in the future, greatly improving the flexibility of clinical practice and cost-effective. At the same time, a clear principle and specification of the dental implant positioning point is established, and the ideal position and implantation angle of the dental implant hole are finally obtained, thereby reducing the surgical trauma, shortening the operation time, reducing the clinical dental implant failure rate and the probability of dental implant complications.

The positioning of the dental implant positioning guide assembly provided by the invention is conspicuous, easy to distinguish, and more accurate in positioning. The three interconnected components are easy to insert and fix, and the position and angle can be flexibly adjusted. The guide assembly is designed to meet the radius of the implant drill and has a guiding function, and the implant drill can be placed from the side. Therefore, the patient's mouth does not need to be large, which can relieve the patient's mouth in the prior art. Great discomfort. The guiding component accurately simplifies the implantation position (implantation hole) of the implant, and also simplifies the original complicated dental implant guide plate making process, improves the work efficiency, and allows the position of the implant to be fixed and fixed. Orientation, improve the success rate of implant surgery, and also greatly save the time for the dentist to perform surgery.

The inner concave engaging component and the protruding positioning component and the positioning rod can be positioned in a positional manner, and the concave engaging component can also be positioned and assembled with the guiding component, and the disassembly is convenient, and can be disassembled in the patient's mouth. Component. The guide assembly adopts the curvature radius of the different curved guide faces, and the concave engagement component can be selectively positionably assembled, and the implant guide plate can be removed from the patient's mouth repeatedly without being repeated. The guide assembly is conveniently replaced, and the dental chair guide plate is fixed compared to the prior art. The dental guide plate is repeatedly removed from the patient's mouth, and the semi-circle inside the snap ring is removed to replace the card. The radius of the ring, the invention can save the operation time, and is more convenient for the dentist to operate.

DRAWINGS

1 is a perspective view showing a dental implant positioning guide assembly according to a preferred embodiment of the present invention;

2 is a schematic view showing the assembly of a positioning rod and a protrusion positioning assembly of a dental implant positioning guide assembly according to a preferred embodiment of the present invention;

Figure 3 is a cross-sectional view showing A-A of the second figure;

4 is a top plan view showing a projection positioning assembly and a guide assembly of a dental implant positioning guide assembly according to a preferred embodiment of the present invention;

5 to 5F are views showing a state of use of a preferred embodiment of the present invention.

Symbol Description:

100 dental implant positioning guide assembly

1 positioning rod

11 upper half

12 lower half

2 raised positioning components

21 perforation

22 snap groove

23 snap link arm

3 recessed snap-in assembly

31 snap-on bumps

4, 4a link component

5, 5a, 5b, 5c guide assembly

51 curved guide surface

52 assembly groove

53 assembly link arm

6 oral model

6a oral cavity

61, 61a alveolar bone

611 drilling

62, 62a teeth

7 dental liquid glue

C1 counterclockwise direction

C2 clockwise

D1, D2 reference distance

G gap

NA, NAa missing area

R curvature diameter

X1, X2, X3, X4, X5, reference axis

X6

Specific embodiment

1 to 3, wherein FIG. 1 is a perspective view showing a dental implant positioning guide assembly according to a preferred embodiment of the present invention; and FIG. 2 is a view showing a dental implant provided by a preferred embodiment of the present invention. FIG. 3 is a cross-sectional view showing the A-A of FIG. 2, showing the assembly of the positioning rod and the positioning assembly of the positioning guide assembly; As shown, a dental implant positioning guide assembly 100 includes a positioning rod 1, a projection positioning assembly 2, a concave engagement assembly 3, a link assembly 4 and four guide assemblies 5, 5a. 5b and 5c, in this embodiment, the positioning rod 1, the protruding positioning component 2, the concave engaging component 3, the guiding components 5, 5a, 5b and 5c are all made by 3D printing, but not This is limited to, and can also be made by ceramic casting.

The positioning bar 1 has an upper half 11 and a lower half 12, the upper half 11 is a trapezoidal cylinder, the lower half 12 is a cylinder, and the upper half 11 is thicker overall than the lower half 12. More precisely, the upper half 11 is a trapezoidal cylinder which is thick and thick, and the upper half 11 has a circular cross section, the longitudinal section is a trapezoid, and the cross section is circular from top to bottom. It grows bigger in order.

The protrusion positioning assembly 2 defines a through hole 21, and the through hole 21 cooperates with the upper half 11 of the positioning rod 1 so that the protrusion positioning assembly 2 is detachably sleeved on the positioning rod 1. In addition, the protrusion positioning assembly 2 is further provided with at least two engaging recesses 22 (only one of which is shown) for mutual connection with the concave engaging component 3. In this embodiment, the number of the engaging recesses 22 is two, which are respectively opened on both sides of the protruding positioning assembly 2. Because the upper half 11 of the positioning rod 1 is in the shape of a trapezoidal cylinder, the convex positioning assembly 2 is sleeved on the positioning rod 1 for a surgical performer (dentist) to take a reference axis X1 as an axis, along an inverse The clock direction C1 is rotated or in a clockwise direction C2, wherein the reference axis X1 extends over the center of each cross section of the upper half 11, so that the center position of the upper half 11 and the center position of the through hole 21 can be simultaneously passed. .

The inner recessed engaging component 3 has two engaging projections 31 (only one of which is shown), and is assembled to the engaging recess 22 of the protruding positioning component 2 by the engaging projection 31. Since the engaging projection 31 and the engaging recess 22 are tightly assembled and fitted with the concave and convex portions, the concave engaging component 3 can be assembled in the positioning positioning assembly 2 in a positional manner, and the positional relationship between the two does not cause relative movement. Ensure the accuracy of positioning. The other side of the concave engaging component 3 relative to the protruding positioning component 2 is used for fixing the linking component 4, and after the linking component 4 and the protruding positioning component 2 are in a fixed state, the linking component 4 and the protruding positioning component 2 The positional relationship between the two will not cause relative movement, which ensures the accuracy of positioning.

In this embodiment, the link component 4 is a photosensitive resin, but is not limited thereto. The photosensitive resin is composed of a photosensitive prepolymer, a reactive diluent and a photosensitizer. In general, the photosensitive resin has plasticity, and when irradiated by ultraviolet light of a specific wavelength (250 nm to 380 nm), polymerization reaction becomes solid to complete curing. In other embodiments, the link assembly 4 may not be made of a photosensitive resin, and the recessed snap-fit assembly 3 may be fixed by hot melt, or the inner snap-fit assembly 3 may be snapped by assembly. More preferably, the link assembly 4 and the recessed engagement unit 3 are integrally molded with each other by means of 3D printing.

The difference between the guiding components 5, 5a, 5b and 5c is the difference in the radius of curvature. The following is exemplified by the guiding component 5: the guiding component 5 is provided with a notch G (shown in FIG. 4), and a notch G is formed. The curved guiding surface 51 is provided with an assembly groove 52 (only one of which is shown) on both sides, the curved guiding surface 51 has a curvature diameter R, and the curvature radius is 2.2 mm, which is the curvature. Half of the diameter R, the radius of curvature is consistent with the radius of curvature of the drill bit of at least one implant, so that the surgeon can push the implant drill against the curved guide surface 51 and guide it by the curved guide surface 51. The drill hole is provided with an implant hole, and the purpose of assembling the groove 52 is that the guide assembly 5 can replace the protrusion positioning assembly 2 and can be assembled in the position of the concave engagement assembly 3 during the actual operation of the operation.

Similarly, the remaining guiding members 5a, 5b and 5c each have a curvature diameter and a curved guiding surface, and an assembly groove is formed on each side, and the radius of curvature of the guiding assembly 5a needs to be additionally described. It is 2.8 mm, the radius of curvature of the guide member 5b is 3.5 mm, and the radius of curvature of the guide member 5c is 4.2 mm. However, it is not limited to this. The surgeon or manufacturer can make changes based on the patient's statistics to see if there is a need to open other more suitable specifications.

Please refer to FIG. 4. FIG. 4 is a top plan view showing the protruding positioning assembly and the guiding assembly of the dental implant positioning guide assembly according to the preferred embodiment of the present invention. As shown, the protrusion positioning assembly 2 has a through hole 21, two engaging grooves 22 and a reference distance D1. The guiding assembly 5 has a notch G, a curved guiding surface 51, a second assembly groove 52 and a reference distance. D2.

The reference axis X1 passes through the center position of the through hole 21, and defines a reference axis X2 and a reference axis X3 respectively passing through the center of the two engaging grooves 22, and the reference axes X1, X2 and X3 are parallel to each other, and the reference distance D1 is It is the distance between the reference axis X1 and the center of the engagement groove 22. Similarly, the reference axis X4 passes through the center of curvature of the curved guiding surface 51, and defines a reference axis X5 and a reference axis X6 respectively passing through the center of the second assembling groove 52, and the reference axes X4, X5 and X6 are mutually connected. Parallel, and the reference distance D2 is the distance between the reference axis X4 and the center of the assembly groove 22. Wherein, the reference distance D1 is equal to the reference distance D2. The guiding members 5a, 5b and 5c also have reference distances equal to the above reference distances D1 and D2, respectively.

In addition, the protruding positioning assembly 2 further has a locking connecting arm 23, and the guiding assembly 5 further has an assembly connecting arm 53. The engagement link arm 23 refers to a portion in which the reference axis X2 is connected to X3 or more, and the assembly link arm 53 refers to a portion in which the reference axis X5 and X6 are connected or more. The advantage of the snap-fit arm 23 is that when the surgeon performs the link positioning assembly 2 to or from the female snap-fit assembly 3, the operator's hand holds the raised positioning component, respectively. The position of the 2 and the joint of the protruding positioning component 2 and the concave engaging component 3 (ie, the engaging groove 22 and the engaging projection 31 are joined) form a force arm, and the point of application is the surgical performer. The hand holds the position of the raised positioning assembly 2, the fulcrum being the junction of the raised positioning assembly 2 and the female snap-fit assembly 3. Producing a moment by the force applied by the surgeon will make it easier for the surgeon to link the projection positioning assembly 2 to the concave engagement assembly 3 or from the inside without the engagement of the engagement arm 23. The female snap assembly 3 is removed. Similarly, assembling the link arm 53 also makes it easier for the surgeon to assemble the guide assembly 5 to the inner snap-fit assembly 3 or to detach the guide assembly 5 from the inner snap-fit assembly 3.

Please refer to FIG. 1 and FIG. 5 to FIG. 5F together. FIG. 5 to FIG. 5F are diagrams showing the use state of the preferred embodiment of the present invention. As shown in the figure, a patient's oral panorama and Periapical film are pre-photographed, and one of the patient's oral models 6 is prepared. The oral model 6 includes a alveolar bone 61 and at least two teeth 62 (pattern Only one of them is marked, and has a missing area NA, and a surgical performer pre-drills a bore 611 in the missing area NA. In the present embodiment, the missing tooth region NA lacks one tooth 62, so only one drill hole 611 needs to be drilled. If the missing tooth region NA system lacks a plurality of teeth 62, it is necessary to drill a corresponding plurality of drill holes 611. The bore 611 is defined and marked on the oral model 6 based on a rule of at least 2 mm from the buccal side, 1 to 3 mm from the tip of the neck (CEJ) and at least 1.5 to 2 mm from the adjacent tooth. A suitable implant design location is at least 2 mm in the buccal bone and at least 1.5 to 2 mm from the adjacent tooth (or 3 mm from the adjacent implant). Further, the aperture size of the bore 611 is referred to the aperture size of the lower half 12 of the positioning rod 1, and in the present embodiment, the surgical performer drills the bore 611 using a round drill No. 8.

Next, the surgical performer inserts the lower half 12 of the positioning rod 1 into the bore 611, and checks the position and angle of the positioning rod 1 according to the patient's oral panorama and the apex. A cutting tool is used to open a low concave space around the positioning rod 1 to prevent a dental liquid glue 7 from overflowing, and the positioning rod 1 is taken out, and a small amount of dental liquid glue 7 is injected into the drilling hole 611, and then the positioning rod is placed. 1 Insert the drill hole 611 and fix the positioning rod 1 by the dental liquid glue 7.

After the positioning rod 1 is fixed, the surgical performer sets the protruding positioning component 2 on the positioning rod 1 , because the protruding positioning component 2 is rotatably sleeved on the positioning rod 1 (as shown in FIG. 2 ), The surgeon can rotate to the most suitable angle according to the position of the missing tooth area NA, thereby improving the convenience of the surgeon. For example, if the missing tooth area NA is at the front teeth, the convex positioning component 2 is facing the surgery. The performer, if the missing area NA is at the posterior teeth, can rotate the angle to an angle suitable for the surgeon to drill the implant hole.

Then, the surgical performer can positionally fix the engaging protrusion 31 of the concave engaging component 3 to the engaging recess 22 of the protruding positioning component 2, and fix the linking component 4 to the concave engaging component. 3 is opposite to the other side of the projection positioning assembly 2. Since the inner concave engaging component 3 is positionally assembled to the convex positioning component 2, no relative movement between the inner concave engaging component 3 and the convex positioning component 2 is formed after assembly, and the linking component 4 is The inner locking engagement assembly 3 is fixed, so that the relative movement between the link assembly 4 and the inner engagement assembly 3 does not occur. The link assembly 4 has an oral contact surface that conforms to the oral contour of one of the patients, and the oral contour represents at least one of the teeth 62 (tooth contour), the alveolar bone 61, the hard palate contour, and the gum contour. Or a combination thereof, when placed in one of the mouths 6a of the patient, can be fixed to at least one of the actual teeth 62a, the alveolar bones 61a, the hard palate and the gums of the patient, and the above various characteristics can be enhanced The accuracy of the dental hole. In addition, the oral contact surface is on the side that is in contact with the patient's oral contour, so the figure cannot be labeled.

In the present embodiment, the link assembly 4 is fixed to the concave engagement assembly 3 and covers at least two teeth 62 and a portion of the alveolar bone 61, and then is irradiated with light of a specific wavelength to achieve a curing effect and solidify into Link component 4a.

Finally, the surgical performer removes the link assembly 4a, the concave engagement assembly 3, the convex positioning assembly 2 and the positioning rod 1 from the oral model 6, and according to the patient's requirements, the self-guide assemblies 5, 5a, 5b and 5c One of the selections can be assembled to the concave engagement component 3 in a positional manner, and then placed in the oral cavity 6a of the patient to perform the drilling of the dental implant hole, and also because the reference distance of the guiding component and the reference distance of the convex positioning component 2 D1 (shown in Figure 4) is equal, therefore, the position of the oral cavity 6a drilled by the curved guiding surface of the guiding assembly to the surgical performer corresponds to the position of the positioning hole 1 inserted into the drilling hole 611 of the oral cavity model 6. , to improve the accuracy of drilling the implant hole. In this embodiment, the surgical implementer selects the guiding component 5b, the guiding component 5b is used for drilling the dental implant hole of the small molar, and the guiding component 5 is suitable for the lower front tooth and the side front tooth, the guiding component. 5a is suitable for upper incisors, canines and median incisors, and guide assembly 5c is suitable for large molars.

Preferably, the surgeon can use the step-by-step drilling method to drill the implant hole from small to large. If the guide member 5b is required to drill the implant hole, the dentist will first drill using the guide assembly 5. An implant hole, and then the guide hole assembly 5a is used to drill the implant hole, which is similar to the concept of reaming, and finally the guide assembly 5b is used to drill the implant hole which finally meets the patient's needs. Similarly, if it is necessary to use the guiding component 5a, the guiding component 5 needs to be used first, and then the guiding component 5a is used; if the guiding component 5c is to be used, the guiding component 5 and the guiding component 5a need to be used sequentially. With the guiding assembly 5b, finally, the guiding assembly 5c is used. The use of step-by-step drilling can avoid direct drilling of holes with larger radii, which will cause errors due to large vibrations, and can improve the accuracy of the implant holes.

It should be particularly noted that the oral cavity model 6 is made in accordance with the oral cavity 6a, so that the alveolar bone 61 of the oral cavity model 6 corresponds to one of the alveolar bone 61a of the actual oral cavity 6a, and at least two teeth 62 of the oral cavity model 6 correspond to the actual At least two teeth 62a of the oral cavity 6a, and the missing tooth region NA of the oral cavity model 6 corresponds to the missing tooth region NAa of the actual oral cavity 6a. Therefore, the link assembly 4a having the oral contact surface conforming to the oral contour of the oral cavity model 6 can be accurately engaged with the teeth 62a and the alveolar bone 61a in the oral cavity 6a after being placed in the oral cavity 6a of the patient, without Relative movements result in inaccurate positioning.

The preferred embodiment is exemplified by a single missing tooth, but not limited thereto. The dental implant positioning guide assembly 1 provided by the present invention can also be used for multiple dental implant surgery.

In summary, the positioning of the dental implant positioning guide assembly provided by the present invention is more convenient and more precise, and the three mutually positionally assembled components are easy to insert and remove, and the position and angle can be flexibly adjusted. . The design of the guiding component not only conforms to the radius of the dental drill, but also allows the dental drill to be placed into the drilled value hole from the side, so that the patient does not need to open the mouth, which can relieve the patient's discomfort. . The guiding component accurately simplifies the implant placement position (implantation hole) and simplifies the original complicated dental implant guide plate making process, improves the working efficiency, and allows the implant to be fixed and fixed. Orientation, improve the success rate of implant surgery, and also greatly save the time for the dentist to perform surgery.

Compared with the digital dental implant guiding plate, the digital dental implant guiding plate technology utilizes a computer to observe and measure the humerus in the morphological aspect and take into consideration the post-repair and other factors to determine the position of the dental implant hole. Further, the 3D guide plate model file is generated to perform full-port scanning 3D printing, which causes the problem that a single missing tooth and a plurality of missing teeth need to print the full auxiliary guide plate, can not mass-produce common specifications, and has high cost and long waiting time.

Compared with the prior art, the structure of the guiding plate snap ring of the guiding plate is the whole circle, and during the operation of the dentist, the scale of the dental drill is blocked by the guiding plate ring, so the dentist cannot accurately Controlling the depth of the dental implant drilling device; in the dental implant positioning guiding assembly provided by the present invention, the guiding component is provided with a notch, and the guiding component structure is semicircular or slightly longer at both ends and resembles a horseshoe The structure of the type not only achieves the guiding function, but also allows the surgeon (ie, the dentist) to clearly see the scale of the dental drill to achieve a precise and deep effect. Another effect is that the patient does not need to have a large mouth to drill, which can greatly relieve the discomfort of the patient in the prior art.

Compared with the prior art, the guide plate also has a complicated process, and the dentist replaces a guide plate with a diameter matching the diameter of the implant drill for each tooth drill of a different diameter. That is to say, each patient needs to make at least four guiding plates, and needs to be placed, removed, and replaced multiple times during the dental implant surgery. In the dental implant positioning guide assembly provided by the present invention, at least two guiding members having different radii of curvature are positionally assembled to the concave engaging assembly, and assembly or disassembly is convenient, and each patient Only need to make a guiding plate (the link assembly is fixed to the concave locking component), and during the dental implant surgery, the surgeon (dentist) only needs to replace the guiding component, not only does not need to put multiple times Ingress, removal and replacement also result in lower cost, higher efficiency and a simpler surgical procedure.

The features and spirit of the present invention will be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed.

Claims (12)

A dental implant positioning guide assembly is provided for a surgeon to drill at least one implant hole in one of the orbital cavities of one of the patients, characterized in that: a positioning rod for inserting a drill hole previously drilled in an oral cavity model of the patient; a protruding positioning component is provided with a pair of perforations to be positioned on the rod for nesting on the positioning rod; a female snap-fit assembly is positionally assembled to the raised positioning assembly; a link assembly secured to one side of the female snap-fit assembly and having an oral contact surface that conforms to the oral contour of one of the patient for engaging the oral contour; At least two guiding components, any one of the guiding components is locably assembled to the concave engaging component, and each of the guiding components defines a notch and forms a curve at the notch a guiding surface for the surgeon to guide the at least one implant hole guided by the curved guiding surface; After the concave engagement component is positionally assembled to the convex positioning component, the surgical performer fixes the linking component to the concave engagement component, and positions the convex positioning component and the positioning component Disposing the rod into one of the guiding assemblies, and finally placing the linking assembly, the concave engaging assembly and the corresponding guiding assembly into the oral cavity of the patient, and engaging the oral contour by the linking assembly The at least one implant hole is drilled by guiding. A dental implant positioning guide assembly according to claim 1, wherein the positioning rod has an upper half and a lower half, the upper half being a trapezoidal cylinder, and the lower half being a The upper half is thicker than the lower half, and the upper half is a trapezoidal cylinder which is thick and thick, and the upper half has a circular cross section and a longitudinal section of a trapezoid. The dental implant positioning guide assembly of claim 1 , wherein each of the two sides of the protruding positioning assembly has an engaging recess. The dental implant positioning guide assembly of claim 3, wherein the female engaging component has two engaging projections with respect to one end of the linking component, and the two engaging projections are used. To respectively fix the engaging grooves on both sides of the protruding positioning component. The dental implant positioning guide assembly of claim 4, wherein each of the guiding assemblies has an assembly groove on each side thereof, and the assembly grooves are used for positionability. The two engaging projections are assembled to the inner recessed engaging component. The dental implant positioning guide assembly of claim 1 , wherein the guiding assemblies are four guiding assemblies, and the curved guiding surfaces of the four guiding assemblies are The radius of curvature is 2.2 mm, 2.8 mm, 3.5 mm and 4.2 mm, respectively. The dental implant positioning guide assembly of claim 1 , wherein the linking component is composed of a photocurable material and is fixed to the concave engagement component by photocuring. A dental implant positioning guide assembly according to claim 1, wherein the link assembly and the concave engagement member are integrally molded with each other by means of a 3D printing method. The dental implant positioning guide assembly of claim 1 wherein the link assembly secures the female snap-fit assembly by heat fusion. The dental implant positioning guide assembly of claim 1 wherein the link assembly snaps into the female snap-fit assembly. The dental implant positioning guide assembly of claim 1 , wherein the positioning rod, the protruding positioning assembly, the concave engaging component, the linking component and the guiding components utilize 3D Print mode production. The dental implant positioning guide assembly of claim 1 , wherein the positioning rod, the protruding positioning assembly, the concave engaging component, the linking component and the guiding components are used Mold casting production.

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