Alveolar ridge trimming drill

Abstract

The utility model provides an alveolar ridge trimming drill which comprises a straight-rod-shaped handle part, the bottom end of the handle part is connected with a positioning rod part, and the positioning rod part is used for extending into the position in the implanting direction of an alveolar ridge positioning point; the end, connected with the handle part, of the positioning rod part is sleeved with a cutting part, the cutting part is provided with a conical table in the direction facing the other end of the positioning rod part, a cutting edge is arranged on the periphery of the conical table, and the two ends of the cutting edge are connected to the bottom and the top of the periphery of the conical table respectively. By the adoption of the technology, the deboning amount of alveolar bones in the mesial, distal, cheek and tongue directions of an implant implantation site is accurately controlled, a recess is formed in the periphery of an opening in the implantation direction of an alveolar ridge positioning point after finishing, a gradually-widened gum penetrating contour is formed, thicker vertical soft tissue is obtained, the soft tissue is shaped, and the implant implantation speed is increased. And a good aesthetic effect is obtained while bone tissues around the implant are preserved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooth implant equipment, in particular to an alveolar ridge trimming drill. Background Art

[0002] Dental implants can achieve a restorative effect that is very similar to the function, structure, and aesthetic effect of natural teeth, and have become the preferred restoration method for more and more patients with missing teeth. Dental implants refer to a method of restoring missing teeth that uses a lower structure implanted in bone tissue as a basis to support and retain the upper dental restoration; it is a medical method that uses pure titanium metal with high compatibility with human bone to be precisely designed and manufactured into a cylinder or other shape similar to a tooth root, and then implanted into the alveolar bone of the missing tooth area through a minor surgical procedure. 3-6 months after the implant is implanted, the base is installed according to the bone integration in the oral cavity, and then an all-ceramic or porcelain crown is made on the artificial tooth root, which completely completes the oral implant.

[0003] Prior art uses a large ball drill to trim the narrow end of the alveolar ridge before implant placement (see Figure 1 ), and then use a small ball drill to locate the implant site (see Figure 2 Then use the pilot drill to determine the implantation direction at the positioning point (see Figure 3 ), and finally the pilot drill to the final depth (see Figure 4 As shown in the figure, the alveolar bone shape of each person is different, and the implant placement site is different. When using a large ball drill to trim the narrow end of the alveolar ridge top, it is difficult to control the amount of bone removal at the implant site. The trimmed alveolar ridge top has an unsatisfactory shape, and the implant is difficult to position. As a result, when implanting an implant, the implant may be exposed in one direction, while the implant is located under the bone in another direction.

[0004] Referring to the patent number CN 214596033 U, a trimming drill for alveolar ridge top is disclosed, which discloses that a positioning drilling component coaxial with the handle is arranged at the center of the head of the trimming drill body, the positioning drill component is higher than the trimming drill body, and the positioning drill component is used to drill into the alveolar ridge to locate the position of the trimming drill body; the trimming drill body head is provided with a cutting part, and the cutting part is used to trim the alveolar ridge surface into a platform for convenient positioning and installation of implants. While positioning the opening, the cutting part can effectively trim the alveolar ridge surface into a platform for convenient positioning and installation of implants, repairing the problem of positioning difficulties caused by the uneven top of the alveolar ridge, and facilitating the positioning and installation of implants. However, it only trims the uneven part of the top of the alveolar ridge into a plane. When the repair space and soft tissue are insufficient, the future restoration will form a steep and wide gingival contour, causing the implant neck bone to be lost, affecting the stability of the implant, and ultimately may lead to the failure of implant restoration. Utility Model Content

[0005] Therefore, it is necessary to provide an alveolar ridge trimming drill so that the trimmed alveolar bone can provide more soft tissue growth space, form a gradually widening gingival contour, and solve the problem that the gingival contour of the restoration is steep and wide, which easily causes bone loss at the implant neck.

[0006] To achieve the above-mentioned purpose, the utility model provides an alveolar ridge trimming drill, which includes a straight rod-shaped handle, a positioning rod portion is connected to the bottom of the handle, and the positioning rod portion is used to extend into the position of the alveolar ridge positioning point in the implantation direction; a cutting portion is provided on the outer sleeve of one end of the positioning rod portion connected to the handle, and the cutting portion has a conical platform facing the other end of the positioning rod portion, and a blade is provided on the outer periphery of the conical platform, and the two ends of the blade are respectively connected to the bottom and top of the outer periphery of the conical platform.

[0007] Furthermore, the bottom of the conical platform is located directly above the implantation direction of the alveolar ridge positioning point, and the bottom diameter of the conical platform is less than or equal to the implantation direction of the alveolar ridge positioning point.

[0008] Furthermore, the bottom of the conical platform is coplanar with the cross section of the positioning rod.

[0009] Furthermore, the positioning rod portion is coaxially arranged with the handle portion, and the diameter of the positioning rod portion and the alveolar ridge positioning point in the implantation direction are equal.

[0010] Furthermore, a plurality of blades are evenly distributed on the conical platform, and chip removal grooves are provided between the blades.

[0011] Furthermore, the blade is arc-shaped and protrudes outward.

[0012] Furthermore, the blades are distributed in a spiral.

[0013] Furthermore, the positioning rod portion, the handle portion and the cutting portion are integrally formed.

[0014] Furthermore, the diameter of the positioning rod is 1.5-3 mm, and the length is 2-7 mm; the diameter of the top of the conical platform is 4-9 mm, and the height is 2-5 mm.

[0015] Furthermore, the upper portion of the cutting portion of the cutting portion is cylindrical, and its diameter is equal to the diameter of the top of the conical platform.

[0016] Different from the existing technology, the above technical solution adopts a positioning rod portion extending into the position of the alveolar ridge positioning point in the implantation direction, and then the blade on the cutting portion trims the alveolar ridge surface of the alveolar bone, accurately controlling the amount of bone removal of the alveolar bone in the mesial, distal, buccal and lingual directions of the implant implantation site. After trimming, a depression is formed on the outer periphery of the opening in the implantation direction of the alveolar ridge positioning point, which is conducive to forming a gradually widening transgingival contour and obtaining thicker vertical soft tissue to shape the soft tissue, thereby preserving the bone tissue around the implant and obtaining a good aesthetic effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the large ball drill used in the background technology to trim the narrow end of the alveolar ridge top;

[0018] Figure 2 This is a schematic diagram of positioning the implantation site using a small ball drill as described in the background technology and specific implementation methods;

[0019] Figure 3 A schematic diagram of determining the implantation direction of the pilot drill at a positioning point as described in the background technology and the specific implementation mode;

[0020] Figure 4 A schematic diagram of the pilot drill as described in the background technology being drilled to the final depth;

[0021] Figure 5 A front view of an alveolar ridge trimming drill according to a specific implementation method;

[0022] Figure 6 A bottom view of an alveolar ridge trimming drill according to a specific implementation method;

[0023] Figure 7 This is a schematic diagram of the alveolar ridge trimming drill described in the specific implementation method trimming the alveolar ridge at the implantation direction of the positioning point;

[0024] Figure 8 This is a schematic diagram of the pilot drill drilling to the final depth according to the specific implementation method.

[0025] Description of reference numerals:

[0026] 1. Alveolar bone;

[0027] 11. Alveolar ridge;

[0028] 12. Alveolar ridge positioning point;

[0029] 13. Implantation direction;

[0030] 14. Final required depth;

[0031] 15. Depression;

[0032] 2. Gums;

[0033] 3. Small ball drill;

[0034] 4. Pioneer drill;

[0035] 5. Alveolar ridge trimming drill;

[0036] 51. handle;

[0037] 52. Cutting part;

[0038] 522, upper part of cutting part;

[0039] 53. Conical platform;

[0040] 54. Blade;

[0041] 55. Positioning rod;

[0042] 56. Chip groove. DETAILED DESCRIPTION

[0043] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0044] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0045] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0046] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in a logical relationship of "or".

[0047] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0048] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0049] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0050] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0051] Unless otherwise clearly specified or limited, in the description of the embodiments of the present application, the terms "install", "connect", "connect", "fix", "set" and the like used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a direct connection, or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0052] See also Figure 2 , Figure 3 as well as Figures 5 to 8The present embodiment provides an alveolar ridge trimming drill 5, which includes a straight rod-shaped handle 51, a positioning rod 55 and a cutting portion 52. The positioning rod 55 is inserted into the position of the alveolar ridge positioning point implantation direction 13 (it can be understood that in the embodiment, the position of the alveolar ridge positioning point implantation direction can be the cavity prepared by the pilot drill 4 at the positioning point of the alveolar ridge), and then the blade 54 on the cutting portion 52 trims the surface of the alveolar ridge 11 of the alveolar bone 1, and accurately controls the bone removal amount of the alveolar ridge 11 in the mesial, distal, buccal and lingual directions of the implantation site. After trimming, a depression 15 is formed on the outer periphery of the opening in the implantation direction 13 of the alveolar ridge positioning point, which is conducive to forming a gradually widened gingival contour and obtaining thicker vertical soft tissue, so as to shape the soft tissue and obtain a good aesthetic effect while preserving the bone tissue around the implant.

[0053] See also Figures 5 to 7 The specific implementation of this embodiment is that the bottom of the handle 51 is connected to a positioning rod 55, and the positioning rod 55 is used to extend into the position of the alveolar ridge positioning point implantation direction 13. The outer sleeve of the end of the positioning rod 55 connected to the handle 51 is provided with a cutting portion 52, and the cutting portion 52 has a conical platform 53 toward the other end of the positioning rod. The outer periphery of the conical platform 53 is provided with a blade 54, and the two ends of the blade 54 are respectively connected to the bottom of the outer periphery of the conical platform 53. and the top, that is, taking the depth of the alveolar ridge positioning point implantation direction 13 as a reference, the positioning rod portion 55 is extended into the alveolar ridge positioning point implantation direction 13, and the blade 54 of the conical table 53 cuts the depression 15 on the opening periphery of the positioning point implantation direction 13. The positioning rod portion 55 limits the depth of the depression 15, that is, the blade 54 of the conical table 53 cuts the opening periphery of the alveolar ridge positioning point implantation direction 13, so that a depression 15 is formed on the opening periphery, which is conducive to forming a gradually widening gingival contour.

[0054] In the embodiment, the bottom of the handle 51 is connected with the positioning rod 55, which means that the handle and the positioning rod are integrated in structure. This integrated structure can be made by cutting metal parts or by splicing multiple parts by plugging, welding or other processes. Similarly, in the embodiment, the outer sleeve of the end where the positioning rod is connected to the handle is provided with a cutting part. It can be understood that the positioning rod 55 and the handle 51 are coaxial in shape, and the cutting part 52 is also coaxial with the two and bulges from the central axis. Therefore, in shape, it can be regarded as being sleeved on the common central axis of the three. In the specific implementation structure, the positioning rod 55, the cutting part 52 and the handle 51 can be integrally formed, or the cutting part with a hole in the middle can be sleeved on the rod, or it can be formed by connecting two or three sections of parts by welding or other methods. Regardless of which specific method is used, it should be regarded as the outer sleeve of the end where the positioning rod is connected to the handle is provided with a cutting part. In the embodiment, the cutting portion has a conical platform toward the other end of the positioning rod, and a blade is provided on the outer periphery of the conical platform. The blade extends upward from the bottom of the conical platform. It can be understood that the shape of the cutting portion with the blade provided on the surface (it can also be understood as the shape of the arc platform) is an arc surface, that is, a curved surface, and the cross section of the curved surface is larger at the top and smaller at the bottom (in the form of Figure 5 , Figure 7 Direction example), the shape of the arc surface (curved surface) can be a part of the following types of curved surfaces: a sphere, an ellipsoid, a parabola or a hyperboloid, etc., and the bone surface cut by the corresponding cutting part also corresponds to the shape.

[0055] The diameter of the positioning rod is 1.5-3mm, and the length is 2-7mm; the diameter of the top of the conical platform is 4-9mm, and the height is 2-5mm. For example, when the length of the positioning rod 55 is 5 mm, the pilot drill 4 prepares a 6 mm deep cavity in the implantation direction 13 of the alveolar ridge positioning point, and extends the positioning rod 55 into the 6 mm deep cavity, which can control the amount of bone removal at the implant implantation site to be 1 mm; the pilot drill 4 prepares a 7 mm deep cavity in the implantation direction 13 of the alveolar ridge positioning point, and extends the positioning rod 55 into the 7 mm deep cavity, which can control the amount of bone removal at the implant implantation site to be 2 mm; the pilot drill 4 prepares an 8 mm deep cavity in the implantation direction 13 of the alveolar ridge positioning point, and extends the positioning rod 55 into the 8 mm deep cavity, which can control the amount of bone removal at the implant implantation site to be 3 mm; and so on, the amount of bone removal of the alveolar ridge 11 in the mesial, distal, buccal and lingual directions of the implant implantation site is accurately controlled, and after trimming, a gradually widening depression 15 is formed on the periphery of the opening in the implantation direction 13 of the alveolar ridge positioning point. In the embodiment, the positioning rod portion 55 is a smooth cylindrical straight rod, and the end portion facing the alveolar ridge positioning point is not provided with a drill bit structure or a sharp structure, so that the hole drilled by the pilot drill in the alveolar bone can be protected, and the trimming of the alveolar ridge surface can be accurately controlled when the bottom of the hole is probed. The positioning rod portion 55 in the shape of a smooth cylindrical straight rod can also effectively reduce the scraping of the trimming drill with human tissue when rotating, protect human tissue, and avoid adhesion of objects, which is conducive to hygienic cleaning. The end portion of the positioning rod portion facing the alveolar ridge positioning point is a flat cylindrical end face or an edge with a chamfer / rounded corner, and the end portion can also be set as a curved surface to protect the patient's oral tissue.

[0056] See also Figures 5 to 7In the specific implementation of this embodiment, since the two ends of the blade 54 are respectively connected to the bottom and the top of the outer periphery of the conical platform 53, it is only necessary to satisfy that the bottom of the conical platform 53 is located directly above the implantation direction 13 of the alveolar ridge positioning point, and the bottom diameter of the conical platform 53 is less than or equal to the implantation direction 13 of the alveolar ridge positioning point, so as to ensure that the blade 54 starts to cut toward the periphery at the position of the implantation direction 13 of the alveolar ridge positioning point, trims the surface of the alveolar ridge 11 of the alveolar bone 1, and forms a depression 15 on the outer periphery of the opening in the implantation direction 13 of the alveolar ridge positioning point. It is preferred that the bottom of the conical platform 53 is set to be coplanar with the cross section of the positioning rod 55. As long as the positioning rod 55 can extend into the position of the alveolar ridge positioning point implantation direction 13, it can ensure that the blade 54 starts cutting toward the periphery at the position of the alveolar ridge positioning point implantation direction 13, trims the surface of the alveolar ridge 11 of the alveolar bone 1, and forms a depression 15 on the outer periphery of the opening in the alveolar ridge positioning point implantation direction 13. Of course, there is also a situation where the bottom of the conical platform 53 is not coplanar with the cross section of the positioning rod 55, that is, the bottom diameter of the conical platform 53 is larger than the positioning rod 55, and the diameter of the positioning rod 55 is smaller than the alveolar ridge positioning point implantation direction 13 (if the positioning rod 55 is equal to the alveolar ridge positioning point implantation direction 13, the bottom of the conical platform 53 contacts the outer periphery of the alveolar ridge positioning point implantation direction 13, and the depression 15 cannot be drilled downward), that is, the bottom diameter of the conical platform 53 is larger than the positioning rod 55. The alveolar ridge trimming drill 5 can drill the depression 15 when the diameter of the positioning rod 55 is smaller than the implantation direction 13 of the alveolar ridge positioning point. However, since the diameter of the positioning rod 55 is smaller than the implantation direction 13 of the alveolar ridge positioning point, it is easy to deviate from the axis during rotation, and it is impossible to ensure that the positioning rod 55 is coaxial with the implantation direction 13 of the alveolar ridge positioning point during cutting, resulting in the blade 54 cutting the outer periphery of the opening in the implantation direction 13 of the alveolar ridge positioning point to form an excessively large or eccentric contour of the depression 15. Preferably, the diameter of the positioning rod 55 is the same as the diameter of the implantation direction 13 of the alveolar ridge positioning point (the diameter of the implantation direction 13 of the alveolar ridge positioning point is the diameter of the pilot drill 4, that is, the diameter of the positioning rod 55 is equal to the diameter of the pilot drill 4), and the bottom of the conical table 53 is coplanar with the positioning rod 55, so as to solve the above problems and avoid inaccurate positioning during drilling, which leads to errors in the contour of the drilled depression 15. The cutting part may not be provided with any structure in the direction of one end of the positioning rod. Of course, the cutting part may be in any shape in the direction of one end of the positioning rod, as long as the shape is inscribed in the top of the cone. However, in order to facilitate the positioning of the drill, it is preferably cylindrical, and its diameter may be equal to the diameter of the top of the cone. Its height is 7-10mm, which is convenient for human eye observation and operation. For details, please refer to Figure 5 , Figure 7As shown, the lower part of the cutting part (close to the positioning rod) is an arc-shaped surface with a blade on the surface, and the upper part 522 of the cutting part is cylindrical. Such a cutting part shape is also easy to process, and at the same time, the rotary cutting of the trimming drill is more stable. The cylindrical upper part 522 of the cutting part also avoids the trimming drill from damaging the soft tissue above the alveolar ridge during rotation, and also avoids accidental damage to the surrounding tissues in the oral cavity during adjustment and movement of the trimming drill. The cylindrical upper part of the cutting part can also be used as a reference for doctors to evaluate the size of the treatment site or operation site in the oral cavity during operation, and to determine whether the cutting operation can be performed.

[0057] See also Figure 5 and Figure 6 In the specific implementation of this embodiment, the outer periphery of the conical platform 53 is provided with a plurality of blades 54, and the plurality of blades 54 are evenly distributed on the conical platform 53. The plurality of blades 54 cut the outer periphery of the opening in the implantation direction 13 of the alveolar ridge positioning point. During trimming, the plurality of blades 54 are arranged on the outer periphery. Compared with one blade, the contact area between the outer periphery of the opening in the implantation direction 13 of the alveolar ridge positioning point and the blades 54 increases. The rotation of the alveolar ridge trimming drill 5 cuts the outer periphery of the opening in the implantation direction 13 of the alveolar ridge positioning point at a faster speed, and the depression 15 can be formed faster in the outer periphery of the opening, thereby reducing the duration of the operation. A chip removal groove 56 is formed between the blades 54 to increase the chip removal capacity of the cutting portion 52, which is more conducive to the continuous cutting of the outer periphery of the opening in the implantation direction 13 of the alveolar ridge positioning point.

[0058] In a specific implementation manner of this embodiment, the shape of the blade 54 can be a straight line, and the outer periphery of the opening in the implantation direction 13 of the alveolar ridge positioning point is trimmed to form a cone-like depression 15; of course, it can also be an arc-shaped protrusion outward, so that the outer periphery of the opening in the implantation direction 13 of the alveolar ridge positioning point forms a gradually widening arc-shaped depression 15, which is more conducive to forming a gradually widening transgingival contour and obtaining thicker vertical soft tissue, so as to shape the soft tissue and obtain a good aesthetic effect while preserving the bone tissue around the implant. Of course, it is better to prefer the blade 54 in a spiral distribution shape, which is not only conducive to forming a gradually widening transgingival contour, but also more conducive to cutting, and the cutting speed is fast and stable, and the depression 15 can be formed faster on the outer periphery of the opening, reducing the trimming time of the alveolar ridge 11. This embodiment takes the spiral distribution as an example, please refer to Figure 5 and Figure 6 The spirally distributed blade has a variety of shapes, which can be S-shaped, arc-shaped, or satisfy any curve of the spiral distribution. This embodiment takes the arc shape as an example.

[0059] See also Figure 5 and Figure 6In the specific implementation of this embodiment, the positioning rod 55 can be coaxially arranged with the handle 51, and the positioning rod 55, the handle 51 and the cutting part 52 are integrally formed. Integral forming can reduce the assembly process and is more conducive to production. In some embodiments, it may not be integrally formed. When it is not integrally formed, the positioning rod 55, the handle 51 and the cutting part 52 are respectively processed into one part, and then combined to form the utility model. When combined, a welding combination or a threaded connection combination can be used. The positioning rod 55 can be coaxial with the handle 51, so that the angular velocity of the rotation of the dental implant machine is consistent with the alveolar ridge trimming drill 5, which is conducive to speeding up the cutting speed, and can form a depression 15 faster on the outer periphery of the opening, reducing the operation time. The positioning rod 55 preferably does not have a blade. The depth of the positioning point implantation direction 13 is controlled by using a pilot drill under direct vision, and the depth of the drilled depression 15 can be controlled, and the bone removal amount of the alveolar ridge 11 in the mesial, distal, buccal and lingual directions of the implant site can be accurately controlled.

[0060] The specific implementation steps of this embodiment are: cut the gums 2, connect the top of the small ball drill 3 to the dental implant machine to drive the small ball drill 3 to rotate, and the bottom of the small ball drill 3 locates the implantation site on the alveolar ridge 11 to form the alveolar ridge positioning point 12 (see Figure 2 , prior art), the top of the pilot drill 4 is connected to the dental implant machine to drive the pilot drill 4 to rotate, the bottom of the pilot drill 4 determines the implantation direction 13 at the alveolar ridge positioning point 12 (the implantation direction here refers to the pilot drill 4 drilling a certain depth into the alveolar bone 1 at the alveolar ridge positioning point 12), and then the alveolar ridge trimming drill 5 is connected to the dental implant machine to drive the alveolar ridge trimming drill 5 to rotate, that is, the top of the handle 51 is connected to the dental implant machine, and the depth of the alveolar ridge positioning point implantation direction 13 is used as a reference, the positioning rod 55 is extended into the implantation direction 13 of the alveolar ridge positioning point, and the blade 54 of the conical table 53 rotates to cut the opening periphery of the alveolar ridge positioning point implantation direction 13 to form a gradually widening depression 15 (please refer to Figure 7 ), and then use the top of the pilot drill 4 to connect with the dental implant machine to drive the pilot drill 4 to rotate, and the pilot drill 4 is inserted into the implantation direction 13 of the alveolar ridge positioning point to drill to the final required depth 14 (please refer to Figure 8 ), and then use reamer drills of different diameters to prepare holes step by step, and finally implant the implant.

[0061] It should be noted that although the above embodiments have been described in this article, this does not limit the scope of patent protection of the utility model. Therefore, based on the innovative concept of the utility model, changes and modifications to the embodiments described in this article, or equivalent structural or equivalent process changes made using the contents of the utility model specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the utility model patent.

Claims

1. An alveolar ridge trimming drill, characterized in that: It comprises a straight rod-shaped handle, a positioning rod connected to the bottom of the handle, the positioning rod is used to extend into the position of the alveolar ridge positioning point in the implantation direction; a cutting portion is provided on the outer sleeve of one end of the positioning rod connected to the handle, the cutting portion has a conical platform facing the other end of the positioning rod, a blade is provided on the outer periphery of the conical platform, and the two ends of the blade are respectively connected to the bottom and the top of the outer periphery of the conical platform.

2. The alveolar ridge trimming drill according to claim 1, characterized in that: The bottom of the conical platform is located directly above the implantation direction of the alveolar ridge positioning point, and the bottom diameter of the conical platform is less than or equal to the implantation direction of the alveolar ridge positioning point.

3. The alveolar ridge trimming drill according to claim 1, characterized in that: The bottom of the conical platform is coplanar with the cross section of the positioning rod.

4. The alveolar ridge trimming drill according to claim 3, characterized in that: The positioning rod is coaxially arranged with the handle, and the diameter of the positioning rod is equal to the diameter of the alveolar ridge positioning point in the implantation direction.

5. The alveolar ridge trimming drill according to claim 1, characterized in that: The conical platform has a plurality of blades evenly distributed thereon, and chip removal grooves are provided between the blades.

6. The alveolar ridge trimming drill according to claim 5, characterized in that: The blade is arc-shaped and protrudes outwards.

7. The alveolar ridge trimming drill according to claim 5, characterized in that: The blades are distributed in a spiral pattern.

8. The alveolar ridge trimming drill according to claim 1, characterized in that: The positioning rod portion, the handle portion and the cutting portion are integrally formed.

9. The alveolar ridge trimming drill according to claim 1, characterized in that: The diameter of the positioning rod is 1.5-3mm, and the length is 2-7mm; the diameter of the top of the conical platform is 4-9mm, and the height is 2-5mm.

10. The alveolar ridge trimming drill according to claim 1, characterized in that: The upper portion of the cutting portion of the cutting portion is cylindrical, and its diameter is equal to the diameter of the top of the conical stage.

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