Dental implant guide plate, drill bit and application method thereof

Abstract

The present invention relates to the field of dental implantation, and discloses a dental implantation guide plate, a drill bit and an application method thereof, comprising an implantation positioning guide plate assembled on a tooth, wherein the implantation guide plate further comprises a tooth-shaped positioning groove which is arranged on the inner top surface of the implantation positioning guide plate and conforms to the shape and size of the tooth, and an elastic positioning arc plate which is fixedly connected to the inner wall of the implantation positioning guide plate and limits the implantation positioning guide plate to be assembled at the outer position of the tooth; the upper end of the elastic positioning arc plate is fixedly connected to the inner side wall of the implantation positioning guide plate, and the lower end of the elastic positioning arc plate is mutually fitted with the inner wall of the implantation positioning guide plate; a sinking groove is arranged on the implantation positioning guide plate corresponding to the position of the tooth to be implanted, a step groove is arranged below the sinking groove, and an inclined groove is arranged below the step groove, and a direction-changing positioning component for precisely adjusting the tooth drilling angle is installed in the step groove, and the drilling direction and angle of the drill bit can be finely adjusted by the direction-changing positioning component, thereby improving the operation accuracy and success rate of dental implantation surgery.

Description

Technical Field

[0001] The present invention relates to the field of dental implantation, and in particular to a dental implantation guide plate, a drill bit and an application method thereof. Background Art

[0002] Missing teeth can be repaired through artificial implants. Before implanting teeth, the doctor needs to evaluate the teeth and oral environment, and customize an implant guide based on the morphology of the patient's teeth. During the operation, the implant guide is installed on the gums. The drilling direction and angle of the drill are limited by the implant guide. The drill opens an implant hole in the tooth socket and inserts the implant to integrate it with the alveolar bone to simulate the function of natural tooth roots. After the bone heals well, the doctor will install a base on the implant and customize an artificial crown according to the patient's needs. After the installation is completed, the implant can be used normally.

[0003] To this end, the patent publication number is CN107837116A, a dental implant guide, a drill bit and an application method thereof, the dental implant guide comprises a base plate with the same curvature as the gums, an inner mandibular fixing plate and an outer mandibular fixing plate are respectively extended in the same direction on both sides of the length direction of the base plate, a plurality of mounting holes for the drill bit to enter the gums to be implanted are opened on the base plate, and a wedge-shaped groove for forming a negative pressure drainage cavity is opened on the end of the mounting hole away from the inner mandibular fixing plate; after the implant guide is fixed to the gums, the drill bit can be extended into the mounting hole and drill the gums, and cooling water directly enters the implantation area of ​​the gums from the mounting hole, and the cooling water cools the gums. During the drilling process, a negative pressure drainage cavity is formed on the wedge-shaped groove at the implant guide through a vacuum suction device, and the negative pressure drainage cavity will guide the blood and bone fragments in the implantation area to be discharged, and the discharge speed is faster, the residue is less, and the drilling is faster, more stable and more accurate.

[0004] However, the guiding accuracy of the implant guide is limited by many factors, such as the accuracy of the three-dimensional data scanning of the teeth, the precision of the 3D printing preparation, etc. The precision of the implant guide preparation greatly affects the accuracy of the drill bit drilling position. After the common drill bit enters the inside of the guide plate, the corresponding position and angle of the drill hole can no longer be fine-tuned. If the position deviation of the drill hole is large, the guide plate needs to be redesigned and manufactured, which consumes treatment time. In addition, some existing drill bits need to cooperate with other tools such as depth limiting sleeves to accurately control the depth of the drilling hole during the drilling process. However, the space in the oral cavity is small, and the increase of auxiliary implant equipment will affect the doctor's observation and surgical operation, which is not conducive to the progress of the operation. Summary of the invention

[0005] In view of the above problems, a dental implant guide, a drill bit and an application method thereof are provided. By combining a telescopic drill bit assembly with a direction-changing positioning assembly in an implant positioning guide plate, the drilling direction and angle of the telescopic drill bit assembly can be fine-tuned during surgery. This solves the problem that after the common drill bit enters the guide plate, the corresponding position and angle of the drilling hole can no longer be fine-adjusted. If the position deviation of the drill hole is large, the guide plate needs to be redesigned and manufactured, which wastes treatment time.

[0006] In order to solve the problems of the prior art, the present invention provides a dental implant guide, comprising an implant positioning guide mounted on a tooth, the implant guide also comprising a tooth-shaped positioning groove which is arranged on the top surface of the implant positioning guide and conforms to the shape and size of the tooth, and an elastic positioning arc plate which is fixedly connected to the inner wall of the implant positioning guide and limits the implant positioning guide to be mounted at the outer position of the tooth; the upper end of the elastic positioning arc plate is fixedly connected to the inner side wall of the implant positioning guide, the lower end of the elastic positioning arc plate is in contact with the inner wall of the implant positioning guide, and the elastic positioning arc plates are symmetrically distributed inside the implant positioning guide about the axis of the tooth-shaped positioning groove; the implant positioning guide has a tooth-shaped positioning groove which is arranged at the position corresponding to the position of the tooth to be implanted. There is a sinking groove, a step groove is provided below the sinking groove, and an inclined groove is provided below the step groove. A direction-changing positioning component for precisely adjusting the tooth drilling angle is installed in the step groove. The telescopic drill bit component is assembled by combining the clamping strip and the clamping groove with the inner positioning ring. After assembly, the direction and angle of the drill bit corresponding to the tooth socket are observed. If the accuracy of the corresponding direction and angle of the drill bit is slightly low, the direction and angle of the telescopic drill bit component can be fine-tuned through the direction-changing positioning component, so that the telescopic drill bit assembly can complete the drilling operation more accurately. The direction-changing positioning component can reduce the precision of the preparation of the implant positioning guide plate, thereby improving the accuracy and efficiency of the dental implant surgery.

[0007] Preferably, a flexible covering layer in contact with the tooth surface is fixed on the surface of the elastic positioning arc plate.

[0008] Preferably, the direction-changing positioning assembly includes an outer positioning ring that is snap-fitted and fixed in the step groove, and an inner positioning ring is rotatably mounted in the outer positioning ring; transverse grooves are symmetrically provided on both sides of the inner wall of the outer positioning ring; positioning sliders are symmetrically fixed on both sides of the outer wall of the inner positioning ring, and the positioning sliders are snap-fitted and slidably mounted in the transverse grooves.

[0009] Preferably, upper vertical grooves are opened at equal intervals above the transverse groove, and lower vertical grooves are opened at equal intervals below the transverse groove. The upper vertical grooves and the lower vertical grooves are correspondingly distributed up and down, and have the same length.

[0010] A drill bit for a dental implant guide plate includes the above-mentioned dental implant guide plate, the drill bit includes a telescopic drill bit assembly mounted in an inner positioning ring, a clamping strip is fixedly mounted on the outside of the telescopic drill bit assembly, and clamping slots are symmetrically provided in the inner positioning ring, and the clamping strip and the clamping slot are assembled in a limited manner; the telescopic drill bit assembly is installed on an implanter.

[0011] Preferably, the telescopic drill bit assembly includes a guide protection column fixedly connected to the bottom of the planting machine, a threaded rod is rotatably connected in the guide protection column, the threaded rod is interconnected with the output end of the driving motor in the planting machine, a guide slide rod is mounted on the outside of the threaded rod, the guide slide rod is slidably installed in the guide protection column, a rotating rod is rotatably connected below the guide slide rod, the rotating rod is movably connected in the guide protection column, and a planting drill bit is fixedly connected to the rotating rod.

[0012] Preferably, a slide groove is provided on the guide protection column, a guide slider is slidably mounted in the slide groove, and the guide slider is fixedly mounted on the outside of the guide slide rod.

[0013] Preferably, a square groove is provided in the threaded rod, a square rod is slidably mounted in the square groove, and the square rod is fixedly mounted on the planting drill bit.

[0014] Preferably, the outer wall of the guide protection column is provided with an external thread, the external thread of the guide protection column is equipped with a limit collar, the limit collar and the guide slider are correspondingly distributed up and down, and a distance sensor is embedded in the guide slider.

[0015] A method for applying a dental implant guide drill bit, comprising the above-mentioned drill bit for a dental implant guide plate, comprises the following steps:

[0016] S1. Adjust the drilling depth. Before assembly, adjust the drill depth of the telescopic drill assembly according to the actual situation of the patient's gums to ensure one-time accurate drilling and improve the accuracy and efficiency of dental implants.

[0017] S2. Install and position the drill bit and guide plate. First, install the implant positioning guide plate on the patient's teeth, and then snap-fit ​​the telescopic drill bit assembly into the inner positioning ring on the implant positioning guide plate to preliminarily define the position of the implant drilling hole.

[0018] S3. Finely adjust the drilling angle. According to the distribution of gums and nerves, adjust the drilling angle of the telescopic drill assembly through the inner positioning ring to improve the accuracy of dental implant drilling.

[0019] S4, drilling, driving the telescopic drill assembly through the implant machine, so that the telescopic drill assembly rotates into the patient's tooth socket at a set drilling depth to determine the position for placing the dental implant.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The implant positioning guide plate in the present invention is provided with a direction-changing positioning assembly for fine-adjusting the drilling direction and angle of the drill bit. The telescopic drill bit assembly is assembled with the inner positioning ring through the clamping strip and the clamping slot. After assembly, the direction and angle of the drill bit corresponding to the tooth socket are observed. If the accuracy of the corresponding direction and angle of the drill bit is slightly low, the direction and angle of the telescopic drill bit assembly can be fine-adjusted by the direction-changing positioning assembly, so that the telescopic drill bit assembly can complete the drilling operation more accurately. The direction-changing positioning assembly can reduce the precision of the preparation of the implant positioning guide plate, thereby improving the accuracy and efficiency of the dental implant surgery.

[0022] 2. The present invention is provided with an elastic positioning arc plate that can quickly locate the position of the implant positioning guide plate installed on the teeth. The implant positioning guide plate is clamped and installed on the patient's teeth according to the tooth-shaped positioning groove. The elastic positioning arc plate in the implant positioning guide plate is elastically squeezed on the outside of the teeth. The implant positioning guide plate can be quickly installed on the patient's teeth through the squeezing force. During the installation process, the patient does not need to bite the guide plate for positioning, which avoids the guide plate being deformed by a large bite force and affecting the accuracy of the drilling position.

[0023] 3. The present invention is provided with a telescopic drill bit assembly. Before implanting a tooth, the depth of the tooth implant drilling hole is determined according to the evaluation content of the patient's intraoral environment, and the spacing between the limit clamp ring and the guide slider is adjusted. During the drilling process, the threaded rod is controlled to rotate by the implanter, and the threaded rod pushes the guide slider, the rotating rod and the implant drill bit to move linearly through the threaded transmission action, and the threaded rod controls the square rod, the rotating rod and the implant drill bit to rotate synchronously under the clamping action of the square groove and the square rod. Through this partial structure, the directional movement and rotational drilling of the implant drill bit can be controlled. The directional movement distance of the implant drill bit can be limited by adjusting the position of the limit clamp ring, thereby limiting the moving drilling depth of the implant drill bit. This partial structure can independently adjust and limit the drilling depth of the tooth implanter, and does not need to cooperate with other auxiliary parts to limit the drill bit movement distance. It is more convenient to use and convenient for doctors to observe and operate during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a dental implant guide and an implant positioning guide of a drill bit.

[0025] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of a sinking groove of a dental implant guide.

[0026] Figure 3 The present invention is a schematic diagram of the three-dimensional structure of a step groove of a dental implant guide.

[0027] Figure 4 The present invention is a schematic diagram of the three-dimensional structure of the tooth-shaped positioning groove of a dental implant guide.

[0028] Figure 5 The present invention is a schematic diagram of the cross-sectional structure of an implant positioning guide of a dental implant guide.

[0029] Figure 6 The present invention is a schematic diagram of the three-dimensional structure of an elastic positioning arc plate of a dental implant guide.

[0030] Figure 7 The present invention is a schematic diagram of the combined structure of an inner positioning ring and an outer positioning ring of a dental implant guide.

[0031] Figure 8 The present invention is a schematic diagram of the separation structure of the inner positioning ring and the outer positioning ring of a dental implant guide.

[0032] Fig. 9 The present invention is a schematic diagram of the three-dimensional structure of an outer positioning ring of a dental implant guide.

[0033] Fig.10 The present invention is a schematic diagram of the three-dimensional structure of an implantation machine for a dental implantation guide drill.

[0034] Fig.11 The present invention is a schematic diagram of the three-dimensional structure of a telescopic drill bit assembly for a dental implant guide drill bit.

[0035] Fig.12 The present invention is a schematic diagram of the three-dimensional structure of an implant drill bit used for a dental implant guide drill bit.

[0036] Fig.13 The present invention is a schematic diagram of the cross-sectional structure of a guide protection column for a dental implant guide drill bit.

[0037] Fig.14 The present invention is a schematic diagram of the cross-sectional structure of a guide slide rod of a dental implant guide drill bit.

[0038] Fig.15 The present invention is a schematic diagram of the cross-sectional structure of a threaded rod of a guide drill bit for dental implantation.

[0039] Fig.16 The present invention is a schematic diagram of the three-dimensional structure of a limiting clamp ring for a dental implant guide drill bit.

[0040] Fig.17 The present invention is a schematic diagram of the three-dimensional structure of a distance sensor for a dental implant guide drill.

[0041] The numbers in the figure are:

[0042] 1. Planting positioning guide plate; 11. Sinking groove; 12. Step groove; 13. Oblique groove; 2. Toothed positioning groove; 3. Elastic positioning arc plate; 31. Flexible covering layer; 4. Direction-changing positioning assembly; 41. External positioning ring; 411. Horizontal groove; 412. Upper vertical groove; 413. Lower vertical groove; 42. Internal positioning ring; 421. Positioning slide block; 422. Card slot; 5. Telescopic drill bit assembly; 51. Guide protection column; 511. External thread; 512. Limiting card ring; 513. Distance sensor; 52. Threaded rod; 521. Square groove; 522. Square rod; 53. Guide slide bar; 54. Rotating rod; 55. Planting drill bit; 56. Slide groove; 57. Guide slide block; 6. Planting machine; 7. Card strip. DETAILED DESCRIPTION

[0043] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0044] See also Figure 1-Figure 7 As shown, a dental implant guide comprises an implant positioning guide 1 assembled on a tooth, the implant guide also comprises a tooth-shaped positioning groove 2 which is arranged on the inner top surface of the implant positioning guide 1 and conforms to the shape and size of the tooth, and an elastic positioning arc plate 3 which is fixedly connected to the inner wall of the implant positioning guide 1 and limits the implant positioning guide 1 to be assembled at the outer position of the tooth; the upper end of the elastic positioning arc plate 3 is fixedly connected to the inner side wall of the implant positioning guide 1, the lower end of the elastic positioning arc plate 3 is mutually fitted with the inner wall of the implant positioning guide 1, and the elastic positioning arc plate 3 is symmetrically distributed about the axis of the tooth-shaped positioning groove 2 Inside the implant positioning guide 1; a sinking groove 11 is opened on the implant positioning guide 1 corresponding to the position of the tooth to be implanted, a step groove 12 is opened below the sinking groove 11, and an inclined groove 13 is opened below the step groove 12, and a direction-changing positioning component 4 for precisely adjusting the tooth drilling angle is installed in the step groove 12; the three-dimensional data of multiple adjacent teeth before and after are scanned according to the position of the implanted tooth, and the tooth-shaped positioning groove 2 in the implant positioning guide 1 is prepared according to the scanning data of multiple adjacent teeth, so that the implant positioning guide 1 can be snap-fitted and installed on the patient's teeth.

[0045] The implant positioning guide 1 is installed above the tooth socket of the tooth to be implanted. The implant positioning guide 1 is clamped and installed on the healthy teeth around the tooth to be implanted through the tooth-shaped positioning groove 2 opened on the inner top surface. The symmetrically distributed elastic positioning arc plates 3 in the implant positioning guide 1 are elastically squeezed on the side positions of the healthy teeth. The implant positioning guide 1 can be quickly confined inside the patient's mouth through the elastic squeezing force. The patient does not need to bite to temporarily fix the implant positioning guide 1, so as to avoid the implant positioning guide 1 being deformed by a large bite force and affecting the accuracy of the drilling guide position.

[0046] The direction-changing positioning component 4 in the implant positioning guide plate 1 corresponds to the position above the tooth socket of the tooth to be implanted. The direction and angle of the drill bit corresponding to the drilling can be fine-tuned through the direction-changing positioning component 4, thereby improving the accuracy and efficiency of the tooth implant drilling process.

[0047] See also Figure 3-Figure 6 As shown, a flexible covering layer 31 in contact with the tooth surface is fixed on the surface of the elastic positioning arc plate 3 , and the cross-sectional size of the flexible covering layer 31 is the same as the cross-sectional size of the elastic positioning arc plate 3 .

[0048] The elastic positioning arc plate 3 is in a curved shape. When the implant positioning guide plate 1 is installed, the elastic positioning arc plate 3 is deformed and bent due to the squeezing force of the teeth. The flexible covering layer 31 on the surface of the elastic positioning arc plate 3 fits the surface of the teeth, and the contact with the teeth causes less damage to them, avoiding damage to other healthy teeth when fixing the implant positioning guide plate 1.

[0049] See also Figure 1 , Figure 2 , Figure 7-Figure 9 As shown, the direction-changing positioning assembly 4 includes an outer positioning ring 41 which is fixed in the step groove 12, and an inner positioning ring 42 is rotatably mounted in the outer positioning ring 41; transverse grooves 411 are symmetrically provided on both sides of the inner wall of the outer positioning ring 41; positioning sliders 421 are symmetrically fixed on both sides of the outer wall of the inner positioning ring 42, and the positioning sliders 421 are slidably mounted in the transverse grooves 411, and the outer wall of the inner positioning ring 42 and the inner wall of the outer positioning ring 41 are spherical arc structures.

[0050] The drill bit assembly is installed inside the inner positioning ring 42 in the direction-changing positioning assembly 4, and the drilling direction is adjusted according to the position of the drill bit corresponding to the tooth socket at this time. The inner positioning ring 42 is controlled by the drill bit to be engaged in the rotation inside the outer positioning ring 41, and the positioning slider 421 fixed on the outer wall of the inner positioning ring 42 is engaged in the transverse groove 411 opened on the inner wall of the outer positioning ring 41 and rotates in a circle. The corresponding direction of the drilling can be fine-tuned according to the rotation position of the positioning slider 421 to maintain the accuracy of the drilling operation.

[0051] See also Figure 8 and Fig. 9 As shown, upper vertical grooves 412 are opened at equal intervals above the transverse groove 411, and lower vertical grooves 413 are opened at equal intervals below the transverse groove 411. The upper vertical grooves 412 and the lower vertical grooves 413 are correspondingly distributed up and down, and the upper vertical grooves 412 and the lower vertical grooves 413 have the same length. The upper vertical grooves 412 and the lower vertical grooves 413 are distributed circumferentially on the inner wall of the outer positioning ring 41.

[0052] After the inner positioning ring 42 is controlled to rotate inside the outer positioning ring 41 along the direction of the transverse groove 411, the rotation angle of the inner positioning ring 42 is adjusted, and the positioning slider 421 on the outer wall of the inner positioning ring 42 is controlled to move to the corresponding upper vertical groove 412 and lower vertical groove 413 positions, and the positioning slider 421 is controlled to be correspondingly embedded in the upper vertical groove 412 or the lower vertical groove 413 to slide and move (two groups of positioning sliders 421 are fixedly arranged outside the inner positioning ring 42. When the inner positioning ring 42 is controlled to tilt and rotate, the two positioning sliders 421 correspond to the upper vertical groove 412 and the lower vertical groove 413 in the outer positioning ring 41 respectively The inner positioning ring 42 is inserted into the outer positioning ring 41 and rotates tiltedly, so that the drilling angle of the drill bit in the inner positioning ring 42 is adjusted so that the drill bit accurately corresponds to the hole opening position of the implant tooth socket, and the adjustment operation is convenient. When adjusting the hole opening direction of the drill bit, the sinking groove 11 and the inclined groove 13 provide space for the rotation adjustment of the drill bit, which is convenient for the steering adjustment of the drill bit. In addition, the adjustability of the implant drilling direction reduces the precision requirement for preparing the implant positioning guide 1, and the influence of the implant positioning guide 1 preparation precision on the implant surgery is also reduced, thereby improving the success rate of the dental implant surgery.

[0053] See also Figure 1 , Figure 10-Figure 17 As shown, a drill bit for a dental implant guide plate includes the above-mentioned dental implant guide plate, and the drill bit includes a telescopic drill bit assembly 5 that is clamped and installed in an inner positioning ring 42. A clamping strip 7 is fixedly installed on the outside of the telescopic drill bit assembly 5, and a clamping groove 422 is symmetrically opened in the inner positioning ring 42. The clamping strip 7 and the clamping groove 422 are clamped and limitedly assembled; the telescopic drill bit assembly 5 is installed on an implanter 6, and the implanter 6 provides drilling power for the telescopic drill bit assembly 5.

[0054] The telescopic drill bit assembly 5 is assembled in the inner positioning ring 42, and the clamping strip 7 fixed outside the guide protection column 51 in the telescopic drill bit assembly 5 is clamped and installed in the clamping groove 422 opened on the inner wall of the inner positioning ring 42. The telescopic drill bit assembly 5 and the implantation positioning guide plate 1 can be quickly combined with each other through the clamping structure to limit the drilling position of the telescopic drill bit assembly 5, so that the telescopic drill bit assembly 5 corresponds to the top of the tooth socket to be implanted. After fine-tuning of the micro-direction positioning assembly 4, the drilling processing position of the telescopic drill bit assembly 5 can be accurately corresponded.

[0055] See also Figure 11-Figure 15As shown, the telescopic drill bit assembly 5 includes a guide protection column 51 fixedly connected to the bottom of the planting machine 6, a threaded rod 52 is rotatably connected in the guide protection column 51, the threaded rod 52 is interconnected with the output end of the driving motor in the planting machine 6, a guide slide rod 53 is sleeved on the outside of the threaded rod 52, the guide slide rod 53 is slidably installed in the guide protection column 51, a rotating rod 54 is rotatably connected below the guide slide rod 53, the rotating rod 54 is movably connected in the guide protection column 51, and a planting drill bit 55 is fixedly connected to the rotating rod 54.

[0056] The threaded rod 52 is driven to rotate by providing power through the implanter 6. The threaded rod 52 is threadedly assembled with the guide slide rod 53, and the guide slide rod 53 is slidably assembled inside the guide protection column 51 under the limiting action of the guide slider 57. Under the action of the threaded transmission structure, the guide slide rod 53 can be pushed to be embedded in the guide protection column 51 for directional movement. The guide slide rod 53 drives the rotating rod 54 and the implant drill bit 55 installed below to move synchronously, so that the implant drill bit 55 moves toward the implant socket to realize the drilling operation.

[0057] See also Fig.13 , Fig.14 , Fig.16 and Fig.17 As shown, a slide groove 56 is provided on the guide protection column 51, and a guide slider 57 is slidably installed in the slide groove 56. The guide slider 57 is fixedly installed on the outside of the guide slide rod 53. Two groups of slide grooves 56 are provided on the outside of the guide protection column 51, and two groups of guide sliders 57 are fixedly set on the outside of the guide slide rod 53, and the two groups of guide sliders 57 are symmetrically distributed about the central axis of the guide protection column 51.

[0058] When the threaded rod 52 rotates to push the guide slide bar 53 to move in a certain direction, the guide slide bar 57 fixed on the outside of the guide slide bar 53 is engaged in the slide groove 56 and moves in a certain direction. Through the limiting effect of the guide slide bar 57 and the slide groove 56, the guide slide bar 53 can be kept moving in a certain direction inside the guide protection column 51 under the action of threaded transmission.

[0059] See also Figure 13-Figure 15 As shown, a square groove 521 is opened in the threaded rod 52 , a square rod 522 is slidably mounted in the square groove 521 , and the square rod 522 is fixedly mounted on the planting drill bit 55 .

[0060] When the threaded rod 52 rotates under the driving action of the planting machine 6, the rotating rod 54 below it is embedded in the threaded rod 52 through the square rod 522 and the square groove 521. The rotation of the threaded rod 52 drives the square rod 522 and the rotating rod 54 to rotate synchronously. The rotating rod 54 is rotatably installed below the guide slide bar 53, so that when the threaded rod 52 rotates, the rotating rod 54 can move in a directional manner under the driving action of the guide slide bar 53, and at the same time, the rotating rod 54 rotates under the driving action of the square rod 522. The rotating rod 54 is fixedly assembled with the planting drill bit 55 to keep the planting drill bit 55 rotating synchronously during the directional movement, thereby realizing the function of the planting drill bit 55 moving and drilling. The planting drill bit 55 is telescopically corresponding to the bottom of the guide protection column 51, and the drilling depth can be limited according to its moving position.

[0061] See also Fig.16 and Fig.17 As shown, the outer wall of the guide protection column 51 is provided with an external thread 511, and the external thread of the guide protection column 51 is assembled with a limit clamping ring 512, the limit clamping ring 512 and the guide slider 57 are distributed correspondingly up and down, and a distance sensor 513 is embedded in the guide slider 57, and a thread groove is provided in the limit clamping ring 512 to be assembled with the external thread 511 on the outside of the guide protection column 51.

[0062] According to the depth of the drilling hole required for the patient's tooth implant, the spacing between the limit collar 512 and the guide protection column 51 is adjusted, and the limit collar 512 is rotated on the outside of the guide protection column 51 through threaded transmission to move the limit collar 512 to the corresponding position outside the guide protection column 51. The distance sensor 513 embedded in the guide slider 57 can measure the distance between the guide slider 57 and the limit collar 512 at this time, so as to more accurately limit the distance of the implant drill bit 55 moving to drill the hole. During the drilling operation, the guide slider 57 is engaged in the slide groove 56 and moves downward, and the distance between the guide slider 57 and the limit collar 512 gradually decreases. When the guide slider 57 is in full contact with the surface of the limit collar 512, the distance sensor 513 transmits the detected distance signal to the implanter 6, and the implanter 6 stops driving the telescopic drill head assembly 5, and the drilling operation is completed.

[0063] See also Figure 10-Figure 17 As shown, a method for applying a dental implant guide drill bit, including the above-mentioned drill bit for a dental implant guide, comprises the following steps:

[0064] S1. Adjust the drilling depth. Before assembly, adjust the drilling depth of the telescopic drill assembly 5 according to the actual situation of the patient's gums to ensure one-time accurate drilling and improve the accuracy and efficiency of dental implantation.

[0065] S2. The drill bit and the guide plate are installed and positioned. First, the implant positioning guide plate 1 is installed on the patient's teeth, and then the telescopic drill bit assembly 5 is snap-fitted and installed in the inner positioning ring 42 on the implant positioning guide plate 1 to preliminarily define the position of the implant drilling hole.

[0066] S3. Finely adjust the drilling angle. According to the distribution of the gums and nerves, the drilling angle of the telescopic drill assembly 5 is adjusted through the inner positioning ring 42 to improve the accuracy of the tooth implant drilling.

[0067] S4, drilling, the telescopic drill assembly 5 is driven by the implanter 6, so that the telescopic drill assembly 5 rotates into the patient's tooth socket at a set drilling depth to determine the position for placing the dental implant.

[0068] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A dental implant guide, comprising an implant positioning guide (1) mounted on a tooth, characterized in that: The implantation guide plate further comprises a tooth-shaped positioning groove (2) provided on the top surface of the implantation positioning guide plate (1) and conforming to the shape and size of the tooth, and an elastic positioning arc plate (3) fixedly connected to the inner wall of the implantation positioning guide plate (1) to limit the implantation positioning guide plate (1) to be assembled at a position outside the tooth; The upper end of the elastic positioning arc plate (3) is fixedly connected to the inner wall of the implantation positioning guide plate (1), the lower end of the elastic positioning arc plate (3) is in contact with the inner wall of the implantation positioning guide plate (1), and the elastic positioning arc plate (3) is symmetrically distributed inside the implantation positioning guide plate (1) about the axis of the toothed positioning groove (2); The implantation positioning guide plate (1) is provided with a sinking groove (11) corresponding to the position of the tooth to be implanted, a step groove (12) is provided below the sinking groove (11), an inclined groove (13) is provided below the step groove (12), and a direction-changing positioning component (4) for precisely adjusting the tooth drilling angle is installed in the step groove (12); The direction-changing positioning assembly (4) comprises an outer positioning ring (41) which is fixedly engaged in the step groove (12), and an inner positioning ring (42) is rotatably mounted in the outer positioning ring (41); The inner wall of the outer positioning ring (41) is symmetrically provided with transverse grooves (411); Positioning slide blocks (421) are symmetrically fixed on both sides of the outer wall of the inner positioning ring (42), and the positioning slide blocks (421) are slidably mounted in the transverse groove (411) in an engaging manner. The outer wall of the inner positioning ring (42) and the inner wall of the outer positioning ring (41) are spherical arc structures; Upper vertical grooves (412) are formed at equal intervals above the transverse groove (411), and lower vertical grooves (413) are formed at equal intervals below the transverse groove (411). The upper vertical grooves (412) and the lower vertical grooves (413) are correspondingly distributed up and down, and the upper vertical grooves (412) and the lower vertical grooves (413) have the same length. The upper vertical grooves (412) and the lower vertical grooves (413) are circumferentially distributed on the inner wall of the outer positioning ring (41).

2. A dental implant guide according to claim 1, characterized in that: A flexible covering layer (31) in contact with the tooth surface is fixed on the surface of the elastic positioning arc plate (3).

3. A drill bit for a dental implant guide, applied to a dental implant guide as claimed in any one of claims 1 to 2, characterized in that: The drill bit comprises a telescopic drill bit assembly (5) mounted in an inner positioning ring (42), a clamping strip (7) being fixedly mounted on the outside of the telescopic drill bit assembly (5), a clamping slot (422) being symmetrically formed in the inner positioning ring (42), and the clamping strip (7) and the clamping slot (422) being assembled in a position-limiting manner in a clamping manner; The telescopic drill bit assembly (5) is mounted on a planting machine (6).

4. A drill bit for a dental implant guide according to claim 3, characterized in that: The telescopic drill head assembly (5) comprises a guide protection column (51) fixedly connected to the bottom of the planting machine (6); a threaded rod (52) is rotatably connected to the guide protection column (51); the threaded rod (52) is connected to the output end of a driving motor in the planting machine (6); a guide slide rod (53) is sleeved and installed outside the threaded rod (52); the guide slide rod (53) is slidably mounted in the guide protection column (51); a rotating rod (54) is rotatably connected to the bottom of the guide slide rod (53); the rotating rod (54) is movably connected to the guide protection column (51); and a planting drill head (55) is fixedly connected to the rotating rod (54).

5. A drill bit for a dental implant guide according to claim 4, characterized in that: The guide protection column (51) is provided with a slide groove (56), in which a guide slider (57) is slidably mounted, and the guide slider (57) is fixedly mounted on the outside of the guide slide rod (53).

6. The drill bit for a dental implant guide according to claim 4, characterized in that: A square groove (521) is provided in the threaded rod (52), a square rod (522) is slidably mounted in the square groove (521), and the square rod (522) is fixedly mounted on the planting drill bit (55).

7. The drill bit for a dental implant guide according to claim 5, characterized in that: The outer wall of the guide protection column (51) is provided with an external thread (511), and the external thread of the guide protection column (51) is equipped with a limit clamping ring (512), the limit clamping ring (512) and the guide slider (57) are arranged correspondingly up and down, and a distance sensor (513) is embedded in the guide slider (57).

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