Artificial dental implant positioning auxiliary tool

Abstract

The present invention relates to the field of dental implants, and in particular to an artificial dental implant positioning auxiliary tool. The tool comprises a positioning base plate, a first positioning member and a second positioning member. A first mounting platform and a second mounting platform are provided on the positioning base plate. The first mounting platform is located above the dental implant point, and the second mounting platform and the first mounting platform are spaced apart. The first positioning member is provided on the first mounting platform, and the second positioning member is rotated and provided on the second mounting platform. The second positioning member and the first positioning member are assembled to form a positioning hole. The present invention sets the positioning hole in an assembled form. When the drill bit is positioned, the second positioning member is rotated to an open state to facilitate the entry of the drill bit. Then, the second positioning member is switched to an assembled state to form a positioning hole to position the drill bit. There is no need for the drill bit to find a position for insertion, which is convenient for installation. At the same time, the diameter of the positioning hole can be set to match the diameter of the drill bit matching position. There is no need to reserve a large gap, and the positioning is more accurate. The positioning hole can be opened to facilitate the discharge of bone chips.

Description

Technical Field

[0001] The present invention relates to the field of dental implants, and in particular to an artificial dental implant positioning auxiliary tool. Background Art

[0002] Dental implant technology is a commonly used method for restoring missing teeth. The key to the success of dental implant surgery lies not only in making a correct and reasonable treatment plan for the patient before the operation, but also in ensuring the rationality of the implant placement in the labial and lingual or mesiodistal directions. The position and direction of dental implant placement play an extremely important role in the restoration of the implant superstructure and the long-term stability of the implant. Many implant dentists with rich clinical experience can grasp the position and direction of implant placement based on panoramic X-rays of the jaw, adjacent teeth, adjacent dental implants, and opposing teeth. However, for many complex cases, especially in areas with multiple missing teeth or bone defects, mistakes are easy to make, which will cause unnecessary trouble to the later restoration of the implant superstructure and affect the service life of the implant. Therefore, a positioning guide light auxiliary device is often used in related technologies to guide the implant placement position and direction to ensure reliable implantation. When the positioning guide plate in the prior art is in use, it is provided with a positioning hole, and the drill bit needs to find the position of the positioning hole by itself and accurately insert the positioning hole, which is cumbersome to operate. At the same time, in order to reduce the difficulty of inserting the drill bit, the diameter of the positioning hole needs to be larger than the positioning diameter of the drill bit, so that there is space for the drill bit to move between the positioning holes. If the space is too large, the positioning accuracy will be reduced, affecting the success rate of dental implants. At the same time, the bone chips generated by drilling can only be discharged from between the guide plate and the gums, but the gap between the two is very small, which makes it difficult to discharge the chips.

[0003] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Summary of the Invention

[0004] In view of the shortcomings of the prior art, one object of the present invention is to provide an artificial dental implant positioning auxiliary tool to solve the problems of low positioning accuracy and difficulty in discharging bone chips in the existing auxiliary tools.

[0005] The present invention provides an artificial dental implant positioning auxiliary tool that adopts the following technical solution:

[0006] A positioning base plate is formed with a positioning slot, and the positioning base plate is mounted on the outer side of the teeth of the upper or lower gum through the positioning slot; a first mounting platform and a second mounting platform are provided on the positioning base plate, the first mounting platform is aligned with the implant point on the gum and is located above the implant point, a first mounting hole is provided in the center of the first mounting platform, a notch is provided on the outer side of the first mounting platform that passes through the first mounting hole, and the second mounting platform is spaced apart from the first mounting platform;

[0007] A first positioning member is provided at the top of the first mounting hole, and a first positioning half hole is provided at the center of the first positioning member;

[0008] The second positioning member is rotatably arranged on the second mounting platform. The second positioning member is a rod-type structure. The second positioning member has a positioning portion adapted to the first positioning member at one end away from the second mounting platform. A second positioning half hole is provided on the positioning portion. The second positioning member has a spliced ​​state and an open state. In the open state, the positioning portion is separated from the first positioning member; in the spliced ​​state, the positioning portion is spliced ​​with the first positioning member, and the first positioning half hole and the second positioning half hole are enclosed to form a positioning hole.

[0009] Optionally, the positioning hole is configured for positioning the drill bit.

[0010] Optionally, the positioning hole is configured to position the rotating shaft of the drilling machine.

[0011] Optionally, the artificial dental implant positioning auxiliary tool also includes a locking structure, which includes a positioning spring piece and a positioning protrusion. The positioning spring piece is arranged on the second mounting platform, and a spring protrusion facing the second positioning member is formed on the positioning spring piece. The positioning protrusion is arranged on the second positioning member, and the positioning protrusion can abut against the spring protrusion of the positioning spring piece to stop; when the second positioning member is in the assembled state, the positioning protrusion is located in front of the spring protrusion of the positioning spring piece along the rotational assembly direction of the second positioning member.

[0012] Optionally, a coolant inlet is provided on the outer side of the second positioning member, and the coolant inlet is connected to the second positioning half hole.

[0013] Optionally, edges of the first positioning half hole and the second positioning half hole are rounded.

[0014] Optionally, a raised portion is formed on the positioning substrate at the tooth implantation point, and the first mounting platform is arranged at an upper end of the raised portion.

[0015] Optionally, a line connecting the center of the positioning hole and the rotation center of the second positioning member is arranged at an angle to a joint line of the positioning hole.

[0016] Optionally, the positioning substrate is made of resin material.

[0017] Optionally, a handle is provided on the second positioning member.

[0018] The beneficial effects of the present invention are as follows: an artificial dental implant positioning auxiliary tool of the present invention sets the positioning hole in a spliced ​​form through the setting of the first positioning part and the second positioning part. When the drill bit is positioned, the second positioning part rotates to an open state to facilitate the entry of the drill bit. The second positioning part rotates to a spliced ​​state to form a positioning hole to position the drill bit. After that, the drill bit drills under the positioning and guiding action of the positioning hole. There is no need for the drill bit to find the position and insert, which is convenient for installation; at the same time, the diameter of the positioning hole can be set to adapt to the diameter of the drill bit matching position, without reserving a large gap, and the positioning is more accurate; and the spliced ​​form of the positioning hole enables the positioning hole to be opened, which is convenient for the discharge of bone chips. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is an overall structural diagram of an artificial dental implant positioning auxiliary tool of the present invention (installed on a tooth);

[0021] Figure 2 for Figure 1 Enlarged view of point Ⅰ in the middle;

[0022] Figure 3 for Figure 1 A top view of

[0023] Figure 4 for Figure 3 Enlarged view of the middle II;

[0024] Figure 5 Schematic diagram of the structure of the second positioning member and its components in the present invention;

[0025] Figure 6 It is a structural schematic diagram of the positioning substrate and the components thereon in the present invention.

[0026] In the picture:

[0027] 100. Teeth; 101. Implant sites;

[0028] 200, positioning base plate; 2001, positioning slot; 201, first mounting platform; 2011, first mounting hole; 2012, notch; 202, second mounting platform; 2021, second mounting hole; 205, hinge screw; 206, positioning spring;

[0029] 300, first positioning member; 301, first positioning half hole;

[0030] 400, second positioning member; 401, coolant inlet; 402, handle; 403, positioning protrusion; 404, cooling channel; 405, second positioning half hole. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] like Figures 1 to 6 As shown, an artificial dental implant positioning auxiliary tool provided by an embodiment of the present invention is used to assist in accurately implanting a dental implant into an implant point 101 of a tooth 100 , and includes a positioning substrate 200 , a first positioning member 300 and a second positioning member 400 .

[0033] A positioning slot 2001 is formed on the positioning substrate 200, and the positioning substrate 200 is clamped on the outer side of the full mouth of teeth 100 on the upper or lower gums through the positioning slot 2001; a first mounting platform 201 and a second mounting platform 202 are provided on the positioning substrate 200, and the first mounting platform 201 is aligned with the implant point 101 on the gums and is located above the implant point 101. A first mounting hole 2011 is provided in the center of the first mounting platform 201, and a notch 2012 is provided on the outer side of the first mounting platform 201 (located on one side of the outer side of the tooth 100) that passes through the first mounting hole 2011 to facilitate the entry of a drilling machine. The second mounting platform 202 is spaced apart from the first mounting platform 201. ; The first positioning member 300 is arranged at the top of the first mounting hole 2011, and a first positioning half hole 301 is arranged at the center of the first positioning member 300; the second positioning member 400 is rotatably arranged on the second mounting platform 202, and the second positioning member 400 is a rod-type structure. The second positioning member 400 has a positioning portion adapted to the first positioning member 300 at one end away from the second mounting platform 202, and a second positioning half hole 405 is provided on the positioning portion. The second positioning member 400 has a spliced ​​state and an open state. In the open state, the positioning portion is separated from the first positioning member 300. In the spliced ​​state, the positioning portion is spliced ​​with the first positioning member 300, and the first positioning half hole 301 and the second positioning half hole 405 are enclosed to form a positioning hole.

[0034] The positioning holes can be configured to position the drill bit. It should be noted that during the dental implant process, the drill bit is coaxially mounted on the lower end of the rotating shaft of the drilling machine. Positioned and guided by the positioning holes, the drill bit can accurately descend to the designed position of the implant point 101 for drilling and implantation. In the prior art, the drill bit needs to accurately locate the positioning holes and insert them, which is quite difficult. Furthermore, to ensure smooth insertion of the drill bit, the diameter of the positioning holes needs to be larger than the positioning diameter of the drill bit. This allows the drill bit to move between the positioning holes. Excessive movement of this space can reduce positioning accuracy, affecting the success rate of dental implants. The present invention sets the positioning hole in a spliced ​​form by setting the first positioning member 300 and the second positioning member 400. When the drill bit is positioned, the second positioning member 400 rotates to an open state, so that the positioning hole is opened, and the corresponding part of the drill bit fits into the first positioning half hole 301. Then the second positioning member 400 is switched to a spliced ​​state to position the drill bit. Thereafter, the drill bit drills under the positioning and guiding action of the positioning hole. There is no need for the drill bit to find the position and insert, which is convenient for installation. At the same time, the diameter of the positioning hole can be set to match the diameter of the drill bit matching position, without reserving a large gap, and the positioning is more accurate. Moreover, the spliced ​​form of the positioning hole enables the positioning hole to be opened, which is convenient for the discharge of bone chips.

[0035] Furthermore, the positioning hole can also be configured to be used to position the rotating shaft of the drilling machine. It is understandable that a series of drill bits are needed in the process of dental implantation, so the drill bit generally includes a working section and a matching section. The matching section is used to connect to the rotating shaft of the drilling machine. Because the diameter and form of the working section of the drill bits in the same series are not the same, the diameter of the matching section is generally designed to be larger than the maximum diameter of the working section to facilitate adaptation. The positioning hole in the prior art is usually adapted to the matching section of the drill bit, resulting in a larger diameter of the positioning hole. The heat generated by friction during the drilling process is large, which can easily cause damage to the equipment and the patient's oral cavity. The solution of this embodiment is to set the positioning hole to cooperate with the rotating shaft of the drilling machine. The diameter of the rotating shaft of the drilling machine is smaller than the diameter of the matching section of the drill bit. Therefore, the diameter of the positioning hole can be made relatively small. The smaller positioning hole can reduce the frictional heat generated during the positioning process, which is beneficial to the normal operation of the equipment and improves the patient's intraoperative experience.

[0036] Furthermore, the artificial dental implant positioning auxiliary tool of the present invention further includes a locking structure, which is configured to facilitate the splicing of the first positioning member 300 and the second positioning member 400 .

[0037] In one embodiment, the locking structure includes a positioning spring piece 206 and a positioning protrusion 403. The positioning spring piece 206 is arranged on the second mounting platform 202. A spring protrusion facing the second positioning member 400 is formed on the positioning spring piece 206. The positioning protrusion 403 is arranged on the second positioning member 400. The positioning protrusion 403 is adapted to the spring protrusion of the positioning spring piece 206, and can then abut against the spring protrusion of the positioning spring piece 206 to stop. When the second positioning member 400 is in the assembled state, along the rotation and assembly direction of the second positioning member 400, the positioning protrusion 403 is located in front of the spring protrusion of the positioning spring piece 206.

[0038] In other embodiments, the locking structure may also be provided with a torsion spring, which is provided at the rotational connection between the second positioning member 400 and the second mounting platform 202. The torsion spring causes the second positioning member 400 to tend to rotate toward the first positioning member 300, thereby enabling the first positioning member 300 and the second positioning member 400 to abut and splice together.

[0039] Furthermore, to facilitate the installation of the second positioning member 400 , a second mounting hole 2021 is provided on the second mounting platform 202 , a hinge screw 205 is provided on the second mounting hole 2021 , and the second positioning member 400 is hinged to the hinge screw 205 .

[0040] The first positioning member 300 is semi-cylindrical, and the positioning portion of the second positioning member 400 is also semi-cylindrical, so that the two can be easily assembled.

[0041] In a further embodiment, a coolant inlet 401 is provided on the outside of the second positioning member 400, and the coolant inlet 401 is connected to the second positioning half-hole 405. Specifically, a cooling channel 404 is provided on the second positioning member 400, which runs through the inside and outside, and the cooling channel 404 is connected to the coolant inlet 401 and the second positioning half-hole 405. During the dental implant drilling process, coolant can be injected into the positioning hole through the coolant inlet 401 to cool the first positioning member 300 and the second positioning member 400. Furthermore, the edges of the first positioning half-hole 301 and the second positioning half-hole 405 are rounded, which can increase the cooling area of ​​the first positioning member 300 and the second positioning member 400, thereby increasing the contact area between the coolant and the first positioning half-hole 301 and the second positioning half-hole 405, and improving the cooling effect.

[0042] In a further embodiment, the positioning substrate 200 forms a raised portion at the implant site 101, and the first mounting platform 201 is disposed above the raised portion. This creates a larger gap between the positioning substrate 200 and the gums at the implant site 101 than between the positioning substrate 200 and the gums at other teeth 100. This creates an overhead space below the first mounting platform 201, allowing bone chips generated during the drilling process to be more smoothly discharged. It is understood that the raised portion of the positioning substrate 200 is provided with a through-cut 2012 to facilitate passage of a drilling machine.

[0043] In a further embodiment, the line connecting the center of the positioning hole and the rotation center of the second positioning member 400 is arranged at an angle to the joint line of the positioning hole. During use, the rotation direction of the drilling machine is set to the same as the rotation direction of the second positioning member 400 when it is joined. During drilling, the rotation of the drilling machine applies a force to the second positioning member 400 to rotate closer to the first positioning member 300, making the second positioning member 400 more reliably in contact with the first positioning member 300 and further improving positioning accuracy.

[0044] In a further embodiment, the positioning substrate 200 is made of a resin material. Resin material has become the preferred material for modern dental implant positioning substrates 200 due to its precise adaptability, biosafety, and digital production advantages. Specifically, the low water absorption rate of the resin material makes it less likely to deform in a moist oral environment and can maintain the preset implant position. The resin material is easy to polish, which can reduce tissue friction damage and improve the fit with the mucosa. Compared with metal materials, resin can significantly reduce the patient's oral foreign body sensation. Medical-grade resin has good biocompatibility, avoids adverse reactions with oral tissues, and can withstand high-temperature steam sterilization to meet the sterility requirements of surgical instruments. More importantly, the resin material can accurately match the patient's alveolar bone morphology through 3D printing technology, significantly reducing production costs, simplifying surgical procedures, shortening surgical time, and supporting personalized customization to improve the overall cost-effectiveness of treatment.

[0045] During the initial visit, patients undergoing dental implants undergo a clinical oral examination. Three-dimensional data of the dentition is acquired using an intraoral scanner, and CBCT images are taken simultaneously to assess the height, width, and neurovascular position of the alveolar bone. In special cases, a positioning model can be worn for a second scan to achieve data fusion between the oral structure and the positioning model. Subsequently, the oral scan data and CT data are aligned using software such as Geomagic Wrap to design the implant position. Safety standards must be met when designing the implant position: ≥2mm from the mandibular nerve canal, and an angle of 15° to 25° between the long axis of the anterior tooth and the occlusal plane. Subsequently, a positioning baseplate 200 model is constructed using software such as 3Shape Implant Studio for virtual trial wear verification. Finally, the positioning baseplate 200 is machined, polished, and sterilized using machining or 3D printing technology, and other accessories are installed and fixed. It is understandable that the positioning baseplate 200 made of resin material is typically designed for single use due to its high adaptability to meet customization requirements. Although its wear resistance is weaker than that of metal materials, it has high clinical use value and promotion value due to its good economic efficiency.

[0046] In a further embodiment, a handle 402 is provided on the second positioning member 400 to facilitate pulling the second positioning member 400 to rotate.

[0047] The following describes in detail the operating principle and working process of the present invention, taking the embodiment of the rotary shaft of the positioning hole positioning drilling machine and the locking structure using the positioning spring piece 206 as an example:

[0048] When in use, first place the positioning substrate 200 on the patient's tooth 100. After the positioning substrate 200 is in place, the first mounting platform 201 is facing the implant point 101 and is located above the implant point 101. Figure 3 and Figure 4 The positioning protrusion 403 is located on the right side of the spring protrusion of the positioning spring piece 206 (that is, along the direction of rotation and closing of the second positioning member 400, the positioning protrusion 403 is located in front of the spring protrusion of the positioning spring piece 206). Under the action of the positioning spring piece 206, the second positioning member 400 tends to rotate toward the first positioning member 300, and then abuts against the first positioning member 300.

[0049] Then, the handle 402 is pulled outward to rotate the second positioning member 400 relative to the second mounting platform 202, and the positioning protrusion 403 squeezes the positioning spring piece 206, the positioning spring piece 206 is flattened, and the second positioning member 400 gradually separates from the first positioning member 300 until the positioning protrusion 403 passes over the positioning spring piece 206, and the rotating shaft of the drilling machine is fitted with the first positioning member 300; then push the handle 402 to rotate the second positioning member 400, and the positioning protrusion 403 squeezes the positioning spring piece 206 again until the second positioning member 400 is fitted with the first positioning member 300. At this time, the positioning protrusion 403 passes over the positioning spring piece 206, and the positioning spring piece 206 recovers its deformation. The positioning spring piece 206 gives the second positioning member 400 a tendency to rotate closer to the first positioning member 300, so that the second positioning member 400 abuts against the first positioning member 300, thereby positioning the rotating shaft of the drilling machine.

[0050] Afterwards, according to the dental implantation steps, first drill a hole in the soft tissue of the gums to remove the soft tissue at the dental implantation site 101; then drill again to grind and trim the bone tissue at the dental implantation site 101 where the soft tissue has been removed; then drill a hole in the trimmed bone tissue, using a step-by-step drilling method when drilling, gradually replacing drill bits with larger diameters to avoid bone tissue collapse. After drilling is completed, implant the tooth in the drilled hole. According to the above steps, it can be understood that the drill bit needs to be replaced many times during the dental implantation process. In the present invention, each time the drill bit is replaced, the second positioning member 400 is opened for replacement, and there is no need to insert the drill bit into the hole. Therefore, the size of the positioning hole and the diameter of the drilling machine shaft can be highly compatible, and there is no need to increase the diameter of the positioning hole. The positioning accuracy is high, and each time the second positioning member 400 is opened, bone chips can be cleaned to avoid adhesion or inclusion of bone chips in the positioning hole and affecting the positioning accuracy. At the same time, when drilling, since the first mounting platform 201 is elevated, the distance between the positioning substrate 200 and the gums of the implant point 101 is large, making it easy to discharge bone chips, and coolant can be introduced into the coolant inlet 401 during drilling, and the coolant flows out through the cooling channel 404 to cool the drill bit and the first positioning member 300 and the second positioning member 400. The chamfers on the edges of the positioning holes increase the contact between the coolant and the first positioning member 300 and the second positioning member 400, resulting in a better cooling effect.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An artificial dental implant positioning auxiliary tool, characterized in that: include: A positioning base plate is formed with a positioning slot, and the positioning base plate is mounted on the outer side of the teeth of the upper or lower gum through the positioning slot; a first mounting platform and a second mounting platform are provided on the positioning base plate, the first mounting platform is aligned with the implant point on the gum and is located above the implant point, a first mounting hole is provided in the center of the first mounting platform, a notch is provided on the outer side of the first mounting platform that passes through the first mounting hole, and the second mounting platform is spaced apart from the first mounting platform; A first positioning member is provided at the top of the first mounting hole, and a first positioning half hole is provided at the center of the first positioning member; The second positioning member is rotatably arranged on the second mounting platform. The second positioning member is a rod-type structure. The second positioning member has a positioning portion adapted to the first positioning member at one end away from the second mounting platform. A second positioning half hole is provided on the positioning portion. The second positioning member has a spliced ​​state and an open state. In the open state, the positioning portion is separated from the first positioning member; in the spliced ​​state, the positioning portion is spliced ​​with the first positioning member, and the first positioning half hole and the second positioning half hole are enclosed to form a positioning hole.

2. The artificial implant positioning auxiliary tool according to claim 1, characterized in that: The positioning hole is configured to position the drill bit.

3. The artificial dental implant positioning auxiliary tool according to claim 1, characterized in that: The positioning hole is configured to position the rotating shaft of the drilling machine.

4. The artificial dental implant positioning auxiliary tool according to claim 2 or 3, characterized in that: The artificial dental implant positioning auxiliary tool also includes a locking structure, which includes a positioning spring piece and a positioning protrusion. The positioning spring piece is arranged on the second mounting platform, and a spring protrusion facing the second positioning member is formed on the positioning spring piece. The positioning protrusion is arranged on the second positioning member, and the positioning protrusion can abut against the spring protrusion of the positioning spring piece to stop; when the second positioning member is in the spliced ​​state, along the rotation and splicing direction of the second positioning member, the positioning protrusion is located in front of the spring protrusion of the positioning spring piece.

5. The artificial dental implant positioning auxiliary tool according to claim 1 or 2, characterized in that: A coolant inlet is provided on the outer side of the second positioning member, and the coolant inlet is connected to the second positioning half hole.

6. The artificial dental implant positioning auxiliary tool according to claim 5, characterized in that: The edges of the first positioning half hole and the second positioning half hole are rounded.

7. The artificial dental implant positioning auxiliary tool according to claim 1 or 2, characterized in that: A bulge is formed on the positioning substrate at the tooth implantation point, and the first mounting platform is arranged on the upper end of the bulge.

8. The artificial dental implant positioning auxiliary tool according to claim 4, characterized in that: The line connecting the center of the positioning hole and the rotation center of the second positioning member is set at an angle to the joint line of the positioning hole.

9. The artificial dental implant positioning auxiliary tool according to claim 1 or 2, characterized in that: The positioning substrate is made of resin material.

10. The artificial dental implant positioning auxiliary tool according to claim 1 or 2, characterized in that: The second positioning member is provided with a handle.

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