Minimally invasive tooth extraction guide plate device with precise positioning function

Abstract

The invention discloses a precise positioning minimally invasive tooth extraction guide plate device which comprises an alveolar bone, a plurality of teeth are uniformly arranged on the upper side of the alveolar bone, and a minimally invasive tooth extraction guide plate is arranged on the alveolar bone; the minimally invasive tooth extraction guide plate comprises a positioning plate arranged above teeth, the positioning plate comprises a first arc-shaped plate and a second arc-shaped plate, a positioning hole is formed between the first arc-shaped plate and the second arc-shaped plate, a connecting block is fixedly connected to the vertical side wall of the first arc-shaped plate, an arc-shaped top plate is fixedly connected to the lower end of the connecting block, and the arc-shaped top plate is fixedly connected to the lower end of the connecting block. The arc-shaped top plate is tightly attached to the alveolar bone, and the curvature of the arc-shaped top plate is the same as that of the alveolar bone. By arranging various different minimally invasive tooth extraction guide plates, the minimally invasive tooth extraction device can be suitable for teeth of different types, extracted teeth can be rapidly and accurately positioned in the minimally invasive tooth extraction process, the tooth extraction smoothness is effectively improved, and the tooth extraction operation quality is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of minimally invasive tooth extraction, and in particular to a precisely positioned minimally invasive tooth extraction guide plate device. Background Art

[0002] Teeth are found in many vertebrates and are the hardest organ in the human body. They are generally milky white and hard. They consist of three parts: the crown, the root, and the neck. Their various shapes accommodate various uses, including tearing and grinding food. Tooth extraction is a fundamental procedure in oral and maxillofacial surgery and one of the most commonly used treatment techniques. Removing the offending tooth is used to treat certain systemic or localized conditions. Because tooth extraction can damage local tissues, causing bleeding, swelling, pain, and fluctuations in blood pressure, temperature, and pulse, it must be approached with caution. Patients with cardiovascular and hematologic diseases should exercise particular caution, as failure to do so can have serious consequences. Tooth loss can cause alveolar bone atrophy, displacement or elongation of adjacent and opposing teeth, and result in chewing difficulties. Loss of anterior teeth directly impacts pronunciation and appearance. Premature loss of deciduous teeth in children can lead to dental and maxillofacial malformations. Therefore, the indications for tooth extraction must be strictly monitored and only considered when the tooth is adversely affecting health and cannot be effectively preserved. In recent years, improvements in tooth extraction instruments have led to significant improvements in tooth extraction procedures. A series of minimally invasive tooth extraction instruments have emerged, including minimally invasive dental elevators, minimally invasive dental burs, handpieces at various angles, and ultrasonic osteotome instruments. Tooth extraction procedures performed using minimally invasive instruments are considered minimally invasive. The advantages of minimally invasive tooth extraction include minimal trauma, mild postoperative side effects, minimal bone removal, and reduced risk of postoperative inferior alveolar nerve damage, lower lip numbness, and accidental mandibular fractures from percussion. This minimally invasive tooth extraction system utilizes anesthesia instruments and medications, resulting in minimal pain for the patient. Combined with specialized dental elevators, this system minimally invasively dissects the periodontal ligament of the affected tooth's periodontal membrane, completely separating the affected tooth from the surrounding alveolar socket without resistance. With a gentle pull, bone tissue can be removed, teeth can be segmented, and impacted wisdom teeth and other difficult-to-extract teeth can be removed virtually painlessly. This method minimizes damage to surrounding tissue and adjacent teeth, significantly alleviating patients' fear of traditional elevator and percussion extraction methods.

[0003] During the existing minimally invasive tooth extraction surgery, the dentist needs to use his or her work experience to locate the tooth to be extracted. The accuracy of the positioning depends on the doctor's own experience and judgment, which makes the positioning of minimally invasive tooth extraction prone to errors, thereby affecting the positioning accuracy of minimally invasive tooth extraction, resulting in a decrease in the quality of minimally invasive tooth extraction surgery and affecting the smoothness of tooth extraction. Summary of the Invention

[0004] The purpose of the present invention is to provide a minimally invasive tooth extraction guide device with precise positioning to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides a precisely positioned minimally invasive tooth extraction guide device, comprising an alveolar bone, a plurality of teeth being evenly arranged on the upper side of the alveolar bone, and a minimally invasive tooth extraction guide being arranged on the alveolar bone;

[0007] The minimally invasive tooth extraction guide includes a positioning plate arranged above the tooth, the positioning plate includes a first curved plate and a second curved plate, a positioning hole is provided between the first curved plate and the second curved plate, the vertical side wall of the first curved plate is fixedly connected with a connecting block, the lower end of the connecting block is fixedly connected with a curved top plate, the curved top plate is tightly fitted with the alveolar bone, the curvature of the curved top plate is the same as the curvature of the alveolar bone, and the side of the curved top plate away from the alveolar bone is fixedly connected with an operating handle.

[0008] Furthermore, the minimally invasive tooth extraction guide also includes a wisdom tooth arranged on the upper side of the alveolar bone, the wisdom tooth is located on the outside of the alveolar bone, a connecting plate is provided above the tooth, the side of the connecting plate close to the tooth is fixedly connected to a vertical rod, the end of the vertical rod away from the connecting plate is fixedly connected to a connecting piece, the side of the connecting piece away from the vertical rod is fixedly connected to an arc-shaped positioning piece, and the wisdom tooth is located in the arc-shaped positioning piece.

[0009] Furthermore, the minimally invasive tooth extraction guide also includes a secondary tooth arranged on the upper side of the alveolar bone, the secondary tooth is located between two adjacent teeth, the inner wall of the alveolar bone is provided with an arc-shaped clamping plate, the arc-shaped clamping plate is tightly fitted with the vertical side wall of the alveolar bone, the curvature of the arc-shaped clamping plate close to the alveolar bone is the same as the curvature of the alveolar bone, the side wall on the upper side of the arc-shaped clamping plate is fixedly connected with a connecting pad, and the side of the connecting pad away from the arc-shaped clamping plate is symmetrically fixedly connected with two positioning splints, the secondary tooth is located between the two positioning splints, the upper side of the arc-shaped clamping plate is fixedly connected with a connecting rod, and the upper end of the connecting rod is fixedly connected with a holding plate.

[0010] Furthermore, the connecting plate includes a plate member arranged above the teeth, and a vertical side wall of the plate member is fixedly connected to an operating handle, and the operating handle is perpendicularly arranged on the plate member.

[0011] Furthermore, the positioning clamping plate includes a rectangular plate fixedly connected to the upper side of the connecting pad, and a triangular plate is fixedly connected to a side of the rectangular plate close to the secondary teeth.

[0012] Furthermore, the vertical side walls of the positioning plate are chamfered.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention provides a first embodiment, a second embodiment and a third embodiment. When the minimally invasive tooth extraction guide in the first embodiment is used, the sizes of the arc-shaped top plate and the positioning plate are determined by shaping the patient's oral cavity, so that the minimally invasive tooth extraction guide can be accurately customized according to the actual size of the patient's alveolar bone. The operating handle is clamped with a tool such as tweezers or pliers, and then the arc-shaped top plate is placed into the patient's oral cavity by controlling the operating handle so that the arc-shaped top plate is attached to the alveolar bone. The arc-shaped top plate drives the positioning plate to move above the tooth to be extracted, so that the tooth to be extracted is located in the positioning hole between the first arc-shaped plate and the second arc-shaped plate. The first arc-shaped plate and the second arc-shaped plate cooperate with each other to accurately position the tooth to be extracted, thereby facilitating accurate extraction of the tooth. When the second embodiment is used, the connecting plate is controlled, and the connecting plate drives the arc-shaped positioning piece to move, so that the arc-shaped positioning piece moves to the Above the wisdom tooth, the connecting plate is controlled to move downward, the connecting plate drives the vertical rod to move downward, the vertical rod drives the connecting piece to move downward, the connecting piece drives the arc-shaped positioning piece to move downward, so that the arc-shaped positioning piece is wrapped around the wisdom tooth, and the arc-shaped positioning piece can accurately position the wisdom tooth, which can facilitate the doctor to quickly and accurately position the patient's wisdom tooth, and is suitable for patients who have wisdom teeth extracted; when the third embodiment is used, the connecting rod is driven to move by the holding plate, and the connecting rod drives the arc-shaped clamping plate to move, and the arc-shaped clamping plate drives the two positioning splints to move into the gap on both sides of the secondary tooth. The two positioning splints set up can accurately position the secondary teeth, so that it can be suitable for the extraction of secondary teeth. This device can be suitable for different types of teeth by setting a variety of different minimally invasive tooth extraction guides. It can quickly and accurately position the extracted teeth during minimally invasive tooth extraction, effectively improving the smoothness of tooth extraction and effectively improving the quality of tooth extraction surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the overall structure of the first embodiment of the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of part A;

[0017] Figure 3 Based Figure 1 Schematic diagram of the structure of the minimally invasive tooth extraction guide;

[0018] Figure 4 Schematic diagram of the overall structure of the second embodiment of the present invention;

[0019] Figure 5 for Figure 1 Schematic diagram of the structure of part B;

[0020] Figure 6 Based Figure 4 Schematic diagram of the structure of the minimally invasive tooth extraction guide;

[0021] Figure 7 Schematic diagram of the overall structure of the third embodiment of the present invention;

[0022] Figure 8 for Figure 7 Schematic diagram of the structure of part C;

[0023] Figure 9 Based Figure 7 Schematic diagram of the structure of the minimally invasive tooth extraction guide.

[0024] In the figure: 1. alveolar bone; 2. tooth; 3. positioning plate; 4. first curved plate; 5. second curved plate; 6. positioning hole; 7. connecting block; 8. curved top plate; 9. operating handle; 10. wisdom tooth; 11. connecting plate; 12. vertical rod; 13. connecting piece; 14. curved positioning piece; 15. secondary tooth; 16. curved clamping plate; 17. connecting pad; 18. positioning splint; 19. plate; 20. operating handle; 21. rectangular plate; 22. triangular plate; 23. connecting rod; 24. holding plate. DETAILED DESCRIPTION

[0025] 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 creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-9 The present invention provides a precisely positioned minimally invasive tooth extraction guide device, comprising an alveolar bone 1, a plurality of teeth 2 being evenly arranged on the upper side of the alveolar bone 1, and a minimally invasive tooth extraction guide being arranged on the alveolar bone 1;

[0027] The first embodiment Figure 1 、 Figure 2 and Figure 3 As shown, the minimally invasive tooth extraction guide includes a positioning plate 3 arranged above the tooth 2, and the positioning plate 3 includes a first curved plate 4 and a second curved plate 5, a positioning hole 6 is provided between the first curved plate 4 and the second curved plate 5, the vertical side wall of the first curved plate 4 is fixedly connected with a connecting block 7, the lower end of the connecting block 7 is fixedly connected with a curved top plate 8, the curved top plate 8 is tightly fitted with the alveolar bone 1, the curvature of the curved top plate 8 is the same as the curvature of the alveolar bone 1, and the side of the curved top plate 8 away from the alveolar bone 1 is fixedly connected with an operating handle 9.

[0028] In the above embodiment, when in use, the sizes of the curved top plate 8 and the positioning plate 3 are determined by shaping the patient's mouth, so that the minimally invasive tooth extraction guide can be accurately customized according to the actual size of the patient's alveolar bone 1. The operating handle 9 is clamped with tools such as tweezers or pliers, and then the curved top plate 8 is placed into the patient's mouth by controlling the operating handle 9, so that the curved top plate 8 is attached to the alveolar bone 1. The curved top plate 8 drives the positioning plate 3 to move above the tooth 2 to be extracted, so that the tooth 2 to be extracted is located in the positioning hole 6 between the first curved plate 4 and the second curved plate 5. The first curved plate 4 and the second curved plate 5 cooperate with each other to accurately position the tooth 2 to be extracted, thereby facilitating the accurate extraction of the tooth 2.

[0029] The second embodiment Figure 4 、 Figure 5 and Figure 6 As shown, the minimally invasive tooth extraction guide also includes a wisdom tooth 10 arranged on the upper side of the alveolar bone 1, and the wisdom tooth 10 is located on the outside of the alveolar bone 1. A connecting plate 11 is provided above the tooth 2, and the side of the connecting plate 11 close to the tooth 2 is fixedly connected to a vertical rod 12, and the end of the vertical rod 12 away from the connecting plate 11 is fixedly connected to a connecting member 13, and the side of the connecting member 13 away from the vertical rod 12 is fixedly connected to an arc-shaped positioning member 14, and the wisdom tooth 10 is located in the arc-shaped positioning member 14.

[0030] In the above embodiment, when in use, the connecting plate 11 is controlled, and the connecting plate 11 drives the arc-shaped positioning member 14 to move, so that the arc-shaped positioning member 14 moves to the top of the wisdom tooth 10, and the connecting plate 11 is controlled to move downward, and the connecting plate 11 drives the vertical rod 12 to move downward, and the vertical rod 12 drives the connecting member 13 to move downward, and the connecting member 13 drives the arc-shaped positioning member 14 to move downward, so that the arc-shaped positioning member 14 is wrapped around the wisdom tooth 10. The arc-shaped positioning member 14 can accurately position the wisdom tooth 10, which can facilitate the doctor to quickly and accurately position the patient's wisdom tooth 10, and is suitable for patients who have had their wisdom teeth 10 extracted.

[0031] The third embodiment Figure 7 、 Figure 8 and Figure 9As shown, the minimally invasive tooth extraction guide also includes a secondary tooth 15 arranged on the upper side of the alveolar bone 1, and the secondary tooth 15 is located between two adjacent teeth 2. The inner wall of the alveolar bone 1 is provided with an arc-shaped clamping plate 16, and the arc-shaped clamping plate 16 is tightly fitted with the vertical side wall of the alveolar bone 1. The curvature of the arc-shaped clamping plate 16 close to the alveolar bone 1 is the same as the curvature of the alveolar bone 1, and the side wall of the upper side of the arc-shaped clamping plate 16 is fixedly connected with a connecting pad 17, and the side of the connecting pad 17 away from the arc-shaped clamping plate 16 is symmetrically fixedly connected with two positioning splints 18, and the secondary tooth 15 is located between the two positioning splints 18, and the upper side of the arc-shaped clamping plate 16 is fixedly connected with a connecting rod 23, and the upper end of the connecting rod 23 is fixedly connected with a holding plate 24.

[0032] In the above embodiment, when in use, the connecting rod 23 is driven to move by the holding plate 24, the connecting rod 23 drives the arc-shaped clamping plate 16 to move, and the arc-shaped clamping plate 16 drives the two positioning splints 18 to move to the gap on both sides of the secondary tooth 15. The two positioning splints 18 provided can accurately position the secondary tooth 15, so that it can be suitable for the extraction of the secondary tooth 15. By providing a variety of different minimally invasive tooth extraction guides, this device can be suitable for different types of teeth 2, and can quickly and accurately position the extracted teeth 2 during the process of minimally invasive tooth extraction, effectively improving the smoothness of tooth extraction and effectively improving the quality of tooth extraction surgery.

[0033] The connecting plate 11 includes a plate 19 arranged above the tooth 2, and the vertical side wall of the plate 19 is fixedly connected to an operating handle 20. The operating handle 20 is vertically arranged on the plate 19. The plate 19 and the operating handle 20 are integrally formed, which can improve the convenience of processing the connecting plate 11 and can improve the structural strength of the connecting plate 11.

[0034] In the above embodiment, the provided operating handle 20 can facilitate the manipulation of the minimally invasive tooth extraction guide, thereby facilitating the placement of the minimally invasive tooth extraction guide into the patient's oral cavity, so that the minimally invasive tooth extraction guide can be placed at the wisdom tooth 10. The operating handle 20 is manipulated to move downward, and the operating handle 20 drives the plate 19 to move, and the plate 19 drives the vertical rod 12 to move downward, and the vertical rod 12 drives the connecting member 13 to move downward, and the connecting member 13 drives the arc-shaped positioning member 14 to move downward, so that the arc-shaped positioning member 14 is wrapped around the wisdom tooth 10. The arc-shaped positioning member 14 can accurately position the wisdom tooth 10, which can facilitate the doctor to quickly and accurately position the patient's wisdom tooth 10, and is suitable for patients who have their wisdom teeth 10 extracted.

[0035] The positioning clamping plate 18 includes a rectangular plate 21 fixedly connected to the upper side of the connecting pad 17 , and a triangular plate 22 is fixedly connected to a side of the rectangular plate 21 close to the secondary teeth 15 .

[0036] In this embodiment, the provided triangular plate 22 can be easily inserted into the gap between the tooth 2 and the secondary tooth 15, thereby facilitating the two positioning splints 18 to be inserted into the gaps on both sides of the secondary tooth 15, thereby enabling the secondary tooth 15 to be accurately positioned, effectively improving the convenience of positioning and guiding the secondary tooth 15.

[0037] The vertical side walls of the positioning plate 3 are chamfered to improve the safety of the positioning plate 3 and prevent the positioning plate 3 from causing damage to the teeth 2.

[0038] Working principle: When in use, the sizes of the curved top plate 8 and the positioning plate 3 are determined by shaping the patient's oral cavity, so that the minimally invasive tooth extraction guide can be accurately customized according to the actual size of the patient's alveolar bone 1. The operating handle 9 is clamped with tools such as tweezers or pliers, and then the curved top plate 8 is placed into the patient's oral cavity by controlling the operating handle 9 so that the curved top plate 8 is attached to the alveolar bone 1. The curved top plate 8 drives the positioning plate 3 to move above the tooth 2 to be extracted, so that the tooth 2 to be extracted is located in the positioning hole 6 between the first curved plate 4 and the second curved plate 5. The first curved plate 4 and the second curved plate 5 cooperate with each other to accurately position the tooth 2 to be extracted, thereby facilitating the accurate extraction of the tooth 2.

[0039] When in use, the connecting plate 11 is controlled, and the connecting plate 11 drives the arc-shaped positioning member 14 to move, so that the arc-shaped positioning member 14 moves to the top of the wisdom tooth 10, and the connecting plate 11 is controlled to move downward, and the connecting plate 11 drives the vertical rod 12 to move downward, and the vertical rod 12 drives the connecting member 13 to move downward, and the connecting member 13 drives the arc-shaped positioning member 14 to move downward, so that the arc-shaped positioning member 14 is wrapped around the wisdom tooth 10. The arc-shaped positioning member 14 can accurately position the wisdom tooth 10, which can facilitate the doctor to quickly and accurately position the patient's wisdom tooth 10, and is suitable for patients who have had their wisdom teeth 10 extracted;

[0040] When in use, the connecting rod 23 is driven to move by the holding plate 24, and the connecting rod 23 drives the arc-shaped clamping plate 16 to move, and the arc-shaped clamping plate 16 drives the two positioning clamping plates 18 to move into the gaps on both sides of the secondary tooth 15. The two positioning clamping plates 18 can accurately position the secondary tooth 15, so that it is suitable for extraction of the secondary tooth 15;

[0041] In summary, the present device can be adapted to different types of teeth 2 by providing a variety of different minimally invasive tooth extraction guides, and can quickly and accurately position the extracted teeth 2 during the minimally invasive tooth extraction process, effectively improving the smoothness of tooth extraction and the quality of the tooth extraction surgery. Different minimally invasive tooth extraction guides can be customized according to different types of tooth extraction needs, thereby accurately positioning and guiding different types of teeth 2. By customizing the shape and size of the alveolar bone of each tooth extraction patient, the teeth 2 to be extracted of different patients can be customized and guided, effectively improving the flexibility of use of the present device.

[0042] The operating handle 20 is provided to facilitate manipulation of the minimally invasive tooth extraction guide, thereby facilitating placement of the minimally invasive tooth extraction guide into the patient's oral cavity, thereby enabling placement of the minimally invasive tooth extraction guide at the wisdom tooth 10, thereby facilitating accurate positioning of the wisdom tooth 10;

[0043] The provided triangular plate 22 can be easily inserted into the gap between the tooth 2 and the secondary tooth 15, so that the two positioning splints 18 can be easily inserted into the gaps on both sides of the secondary tooth 15, so that the secondary tooth 15 can be accurately positioned, effectively improving the convenience of positioning and guiding the secondary tooth 15.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A precisely positioned minimally invasive tooth extraction guide device, comprising an alveolar bone (1), characterized in that: A plurality of teeth (2) are evenly arranged on the upper side of the alveolar bone (1), and a minimally invasive tooth extraction guide is arranged on the alveolar bone (1); The minimally invasive tooth extraction guide plate includes a positioning plate (3) arranged above the tooth (2), the positioning plate (3) includes a first curved plate (4) and a second curved plate (5), a positioning hole (6) is provided between the first curved plate (4) and the second curved plate (5), the vertical side wall of the first curved plate (4) is fixedly connected to a connecting block (7), the lower end of the connecting block (7) is fixedly connected to an arc-shaped top plate (8), the arc-shaped top plate (8) is tightly fitted with the alveolar bone (1), the curvature of the arc-shaped top plate (8) is the same as the curvature of the alveolar bone (1), and the side of the arc-shaped top plate (8) away from the alveolar bone (1) is fixedly connected to an operating handle (9).

2. The precise positioning minimally invasive tooth extraction guide device according to claim 1, characterized in that: The minimally invasive tooth extraction guide also includes a wisdom tooth (10) arranged on the upper side of the alveolar bone (1), the wisdom tooth (10) is located on the outside of the alveolar bone (1), a connecting plate (11) is arranged above the tooth (2), a side of the connecting plate (11) close to the tooth (2) is fixedly connected to a vertical rod (12), an end of the vertical rod (12) away from the connecting plate (11) is fixedly connected to a connecting piece (13), a side of the connecting piece (13) away from the vertical rod (12) is fixedly connected to an arc-shaped positioning piece (14), and the wisdom tooth (10) is located in the arc-shaped positioning piece (14).

3. The precise positioning minimally invasive tooth extraction guide device according to claim 2, characterized in that: The minimally invasive tooth extraction guide also includes a secondary tooth (15) arranged on the upper side of the alveolar bone (1), the secondary tooth (15) is located between two adjacent teeth (2), the inner wall of the alveolar bone (1) is provided with an arc-shaped clamping plate (16), the arc-shaped clamping plate (16) is tightly fitted with the vertical side wall of the alveolar bone (1), the curvature of the arc-shaped clamping plate (16) close to the alveolar bone (1) is the same as the curvature of the alveolar bone (1), the side wall of the upper side of the arc-shaped clamping plate (16) is fixedly connected to a connecting pad (17), the side of the connecting pad (17) away from the arc-shaped clamping plate (16) is symmetrically fixedly connected to two positioning splints (18), the secondary tooth (15) is located between the two positioning splints (18), the upper side of the arc-shaped clamping plate (16) is fixedly connected to a connecting rod (23), and the upper end of the connecting rod (23) is fixedly connected to a holding plate (24).

4. The precise positioning minimally invasive tooth extraction guide device according to claim 3, characterized in that: The connecting plate (11) comprises a plate member (19) arranged above the teeth (2); a vertical side wall of the plate member (19) is fixedly connected to an operating handle (20); and the operating handle (20) is arranged vertically on the plate member (19).

5. The precise positioning minimally invasive tooth extraction guide device according to claim 4, characterized in that: The positioning clamping plate (18) comprises a rectangular plate (21) fixedly connected to the upper side of the connecting pad (17), and a triangular plate (22) is fixedly connected to the side of the rectangular plate (21) close to the secondary tooth (15).

6. The precise positioning minimally invasive tooth extraction guide device according to claim 5, characterized in that: The vertical side walls of the positioning plate (3) are chamfered.

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