阅读说明：本技术 穿颧种植扩孔钻组 (Cheekbone-penetrating planting reaming drill set ) 是由 邹多宏 高振华 杨驰 陆海霞 张志愿 于 2020-05-06 设计创作，主要内容包括：本发明提供一种穿颧种植扩孔钻组,所述穿颧种植扩孔钻组至少包括一组穿颧种植扩孔钻,根据刃瓣的结构不同,所述一组穿颧种植扩孔钻至少包括大号钻、中号钻和小号钻；所述穿颧种植扩孔钻包括相连的钻体(1)与钻柄(2),所述钻体(1)上设有两个刃瓣(12)和两个螺旋槽(13),两个所述刃瓣(12)呈螺旋状沿所述钻体(1)的周圈设置,所述钻体(1)的钻尖(11)为无横刃的尖端；所述刃瓣(12)自钻尖端依次设置若干直径递增的阶梯段以形成带阶梯的侧向切削刃(14)。本申请中的穿颧种植扩孔钻组可以有效避免预备过深或不足的问题,有效预防种植并发症的发生,提高了种植修复的成功率。(The invention provides a cheekbone planting reaming drill group, which at least comprises a group of cheekbone planting reaming drills, wherein the group of cheekbone planting reaming drills at least comprises a large drill, a medium drill and a small drill according to different structures of blade lobes; the cheekbone planting reamer comprises a drill body (1) and a drill handle (2) which are connected, wherein the drill body (1) is provided with two blade lobes (12) and two spiral grooves (13), the two blade lobes (12) are spirally arranged along the periphery of the drill body (1), and a drill tip (11) of the drill body (1) is a tip without a chisel edge; the land (12) is provided with a plurality of stepped sections with increasing diameters in sequence from the drilling tip to form a stepped lateral cutting edge (14). The cheekbone-threading planting reaming drill set can effectively avoid the problem that preparation is too deep or insufficient, effectively prevents planting complications, and improves the success rate of planting restoration.)

1. The cheekbone planting reaming drill group is characterized by at least comprising a group of cheekbone planting reaming drills, wherein the group of cheekbone planting reaming drills at least comprises a large drill, a medium drill and a small drill according to different structures of blade lobes; the cheekbone planting reamer comprises a drill body (1) and a drill handle (2) which are connected, wherein the drill body (1) is provided with two blade lobes (12) and two spiral grooves (13), the two blade lobes (12) are spirally arranged along the periphery of the drill body (1), and a drill tip (11) of the drill body (1) is a tip without a chisel edge; the land (12) is provided with a plurality of stepped sections with increasing diameters in sequence from the drilling tip to form a stepped lateral cutting edge (14).

2. The cheekbone planting reaming group according to claim 1, characterized in that said large-size drill and said medium-size drill comprise, from the drill tip, a first step, a second step and a third step of increasing diameter in sequence; from the drill point, the small drill comprises a first step section, a second step section, a third step section and a fourth step section, wherein the diameters of the first step section, the second step section, the third step section and the fourth step section are sequentially increased.

3. The cheekbone planting reaming group according to claim 1, characterized in that said spiral groove (13) has a length comprised between 18 and 25 mm; and/or the drill body is a mark area (16) from the tail end of the blade to the end close to the drill handle, and the length of the mark area (16) is 25-60 mm; and/or the length of the drill handle (2) is 10-20 mm.

4. The cheekbone planting reamer set of claim 3, characterized in that said cheekbone planting reamer comprises at least a long drill set and/or a short drill set, depending on the length of said identification area (16); and/or a plurality of scale marks (17) are arranged on the mark area (16), and the scale marks (17) are used for marking the distance from one end of the drill tip (11) of the zygomatic planting reamer.

5. The cheekbone planting reaming group according to claim 4, characterized in that the length of the marking zone (16) of the longdrill group is 50-60 mm; and/or the length of the identification area (16) of the short drill group is 25-35 mm; and/or the scale marks (17) are mark lines and/or mark grooves with different colors; and a scale mark (17) is arranged on the mark area (16) at intervals of 5-10 mm.

6. The zygomatic implant reaming group of claim 2, wherein the diameter d of the first step of the large-size drill_{1 is large}2.5-3 mm; and/or diameter d of the second step of the large drill_{2 is large}3-3.5 mm; and/or diameter d of third step of large-size drill_{3 is large}4.0-4.5 mm; and/or the diameter d of the first step of the medium drill_{1 in}2.5-3 mm; and/or diameter d of the second step of the medium gauge drill_{In 2 (2)}2.8-3.2 mm; and/or diameter d of the third step of the pilot drill_{3 in}4.0-4.5 mm; and/or diameter d of the first step of the small drill_{1 is small}1.8-2.2 mm; and/or diameter d of the second step of the small drill_{2 small}2.2-2.8 mm; and/or diameter d of third step of small drill_{3 in}2.8-3.2 mm; and/or diameter d of the fourth step of the pilot drill_{4 small}4.0-4.5 mm, and/or the length L of the first step of the large-size drill_{1 is large}3-5 mm and/or the length L of the second step of the large-size drill_{2 is large}10-15 mm and/or the length L of the third step of the large-size drill_{3 is large}3-5 mm and/or the length L of the first step of the medium-sized drill_{1 in}6-10 mm and/or the length L of the second step of the medium-sized drill_{In 2 (2)}Is 6 to 10mm, and/or length L of the third step of the pilot drill_{3 in}3-5 mm and/or the length L of the first step of the small-size drill_{1 is small}2.5-5 mm and/or the length L of the second step of the small-size drill_{2 small}2.5-5 mm and/or the length L of the third step of the small-size drill_{3 small}6-10 mm and/or the length L of the fourth step of the small-size drill_{4 small}2.5-4.5 mm.

7. The cheekbone planting reaming group according to claim 1, characterized in that the length of said drill tip (11) is comprised between 0.2 and 0.8 mm.

8. The cheekbone planting reaming drill set according to claim 1, characterized in that the cutting land width of the drill body (1) is 0.5-7 mm; and/or two lands located at the same cross-section of the drill body are of the same width; and/or the land width gradually decreases in a step section in the direction close to the drill tip.

9. The cheekbone planting reaming set according to claim 2, characterized in that the width b of the first step land is 0.5-2 mm; and/or the width of the second stepped edge land is 1-5 mm; and/or the width of the third step edge land is 2-6 mm; and/or the width of the edge land of the fourth step section is 3-7 mm.

10. The cheekbone planting reaming set according to claim 1, characterized in that the slope β of the transition round table is 30-60 ° and/or the helix angle α of the drill body (1) is 30-60 °.

Technical Field

The invention relates to the field of dental implantation, in particular to a cheekbone-passing implantation reaming drill set.

Background

Patients with severe maxillary bone defects or bone atrophy with missing teeth in the edentulous jaw or posterior dental area due to various causes are clinically very difficult if implant repair is desired.

Although there are many attempts to overcome this difficulty, such as maxillary sinus fenestration bone grafting, massive autologous bone grafting, bone distraction osteogenesis, etc., there are problems in that the treatment period is long, and the generation of related complications causes uncertainty in the treatment effect, etc.

The cheekbone-passing implant is a dental implant implanted into cheekbones, and 2-4 conventional dental implants are implanted into an anterior dental area by means of a compact bone block of the cheekbones so as to jointly complete the repair of maxillary dentition.

The length of the zygomatic implant is generally 30.0-52.5 mm. Mainly used for patients with severe atrophy in the posterior dental area of the maxilla. Its main advantages are no need of bone grafting operation, short treating period, immediate load bearing and final repair within 3 months. The ultimate goal of the zygomatic implant is to achieve zygomatic retention, which utilizes dense zygomatic bones of the maxillofacial area to achieve initial implant stability and to reasonably distribute occlusal forces. In addition, in maxillofacial restoration after jaw resection, the zygomatic bone is used for implanting the implant, so that retention is provided for the maxillofacial prosthesis. However, the technique has high sensitivity, deeper position and compact cheekbones, and the requirement is difficult to achieve by a common conventional planting drill.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a zygomatic implantation reaming drill set for solving the above-mentioned problem of effective cavity preparation for zygomatic implantation in the prior art.

To achieve the above objects and other related objects, the present invention is achieved by the following technical solutions.

The application provides a cheekbone planting reaming drill group, which at least comprises a group of cheekbone planting reaming drills, wherein the group of cheekbone planting reaming drills at least comprises a large drill, a medium drill and a small drill according to different structures of blade lobes; the cheekbone planting reamer comprises a drill body and a drill handle which are connected, wherein the drill body is provided with two blade lobes and two spiral grooves, the two blade lobes are spirally arranged along the periphery of the drill body, and the drill point of the drill body is a tip without a chisel edge; the cutting land is provided with a plurality of stepped sections with gradually increased diameters from the drilling tip end in sequence so as to form a side cutting edge with steps.

According to the cheekbone planting reaming drill set, from the drill tip, the large drill and the medium drill comprise a first step section, a second step section and a third step section, wherein the diameters of the first step section, the second step section and the third step section are sequentially increased; from the drill point, the small drill comprises a first step section, a second step section, a third step section and a fourth step section, wherein the diameters of the first step section, the second step section, the third step section and the fourth step section are sequentially increased.

According to the zygomatic planting reaming drill set, the length of the spiral groove is 18-25 mm; and/or the drill body is a mark area from the tail end of the blade to the end close to the drill handle, and the length of the mark area is 25-60 mm; and/or the length of the drill handle is 10-20 mm.

According to the cheekbone planting reaming drill group, according to the difference of the lengths of the identification areas, the cheekbone planting reaming drill at least comprises a long drill group and/or a short drill group; and/or a plurality of scale marks are arranged on the mark area, and the scale marks are used for marking the distance from one end of the drill tip of the cheekbone-passing planting reamer.

According to the cheekbone planting reaming drill set, the length of the identification area of the long drill set is 50-60 mm; and/or the length of the identification area of the short drill group is 25-35 mm; and/or the scale marks are mark lines and/or mark grooves with different colors; and each mark area is provided with a scale mark at intervals of 5-10 mm.

According to the zygomatic planting reaming drill set, the diameter d of the first step of the large-size drill_{1 is large}2.5-3 mm.

According to the zygomatic planting reaming drill set, the diameter d of the second step section of the large-size drill_{2 is large}3-3.5 mm.

According to the cheekbone planting reaming drill set, the diameter d of the third step of the large drill_{3 is large}Is 4.0 to 4.5 mm.

According to the zygomatic planting reaming drill set, the diameter d of the first step of the medium drill_{1 in}2.5-3 mm.

According to the zygomatic planting reaming drill set, the diameter d of the second step section of the medium drill_{In 2 (2)}Is 2.8 to 3.2 mm.

According to the cheekbone planting reaming drill set, the diameter d of the third step of the medium drill_{3 in}Is 4.0 to 4.5 mm.

According to the zygomatic planting reaming drill set, the diameter d of the first step of the small-size drill_{1 is small}Is 1.8-2.2 mm.

According to the zygomatic planting reaming drill set, the diameter d of the second step section of the small-size drill_{2 small}2.2-2.8 mm.

According to the cheekbone planting reaming drill set, the diameter d of the third step of the small drill_{3 in}Is 2.8 to 3.2 mm.

According to the zygomatic planting reaming drill set, the diameter d of the fourth step section of the small-size drill_{4 small}Is 4.0 to 4.5 mm.

The length L of the first step of the large-size drill according to the zygomatic planting reaming drill set_{1 is large}Is 3-5 mm.

The length L of the second step of the large-size drill is the same as that of the zygomatic planting reaming drill set_{2 is large}10-15 mm.

The length L of the third step of the large-size drill is the same as that of the zygomatic planting reaming drill set_{3 is large}Is 3-5 mm.

The length L of the first step of the zygomatic implant reaming drill set, the medium drill, is according to the above_{1 in}6-10 mm.

The length L of the second step of the medium drill of the zygomatic implant reaming drill set described above_{In 2 (2)}6-10 mm.

According to the third step of the cheekbone-passing planting reaming drill set and the medium drillLength of segment L_{3 in}Is 3-5 mm.

The length L of the first step of the small-size drill according to the zygomatic planting reaming drill set_{1 is small}Is 2.5-5 mm.

The length L of the second step of the small-size drill is the cheekbone planting reaming drill set_{2 small}Is 2.5-5 mm.

The length L of the third step of the small-size drill is the same as that of the zygomatic planting reaming drill set_{3 small}6-10 mm.

The length L of the fourth step of the small-size drill is the zygomatic planting reaming drill group_{4 small}2.5-4.5 mm.

According to the cheekbone planting reaming drill set, the length of the drill tip is 0.2-0.8 mm.

According to the cheekbone planting reaming drill set, the width of the cutting edge of the drill body is 0.5-7 mm.

According to the zygomatic planting reaming drill set, the two blade lands of the same cross section of the drill body are the same in width.

According to the zygomatic planting reaming drill set, the width of the blade is gradually reduced along the direction close to the drill tip in a step section.

According to the cheekbone planting reaming drill set, the width b of the cutting edge of the first step is 0.5-2 mm; the width of the second step section edge land is 1-5 mm, the width of the third step section edge land is 2-6 mm, and the width of the fourth step section edge land is 3-7 mm.

According to the zygomatic planting reaming drill set, the spiral angle α of the drill body is 30-60 degrees.

According to the cheekbone planting reaming drill set, the gradient β of the transition round table is 30-60 degrees.

As mentioned above, the zygomatic planting reaming drill set has the following beneficial effects:

the cheekbone-threading planting reaming drill set can effectively avoid the problem that preparation is too deep or insufficient, effectively prevents planting complications, and improves the success rate of planting restoration.

Drawings

FIG. 1 is a schematic view of the structure of the zygomatic planting reaming drill set of the present invention, wherein FIG. 1a) is a large drill in a long drill set, FIG. 1b) is a medium drill in the long drill set, FIG. 1c) is a small drill in the long drill set, FIG. 1d) is a large drill in a short drill set, FIG. 1e) is a medium drill in the short drill set, and FIG. 1f) is a small drill in the short drill set

FIG. 2 is a second schematic view of the zygomatic implantation reamer of the invention

FIG. 3 is a schematic view of a drill body of the zygomatic implant reamer of the invention

FIG. 4 is a third schematic view of the configuration of the zygomatic planting reamer of the invention, wherein FIG. 4a) is a small drill in the short drill group, FIG. 4b) is a medium drill in the short drill group, and FIG. 4c) is a large drill in the short drill group

FIG. 5 is a schematic view of a partial structure of the zygomatic implant reamer of the invention

FIG. 6 is a second schematic view of a partial structure of the zygomatic implantation reamer of the invention

FIG. 7 is a schematic view of a portion of the zygomatic implant reamer of the present invention

Description of reference numerals in fig. 1 to 7

1 drill body

11 drill point

12-edge land

13 helical groove

14 lateral cutting edge

15 transition round table

16 sign area

17 graduation mark

2 drill handle

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 7. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

As shown in fig. 1 and 7, the cheekbone planting reaming drill set provided in the embodiment of the present invention at least includes a set of cheekbone planting reaming drill, the cheekbone planting reaming drill includes a drill body 1 and a drill handle 2 connected to each other, the drill body 1 is provided with two blades 12 and two spiral grooves 13, the two blades 12 are spirally arranged along the circumference of the drill body 1, and a drill tip 11 of the drill body 1 is a tip without a chisel edge; the land 12 is provided with a plurality of stepped sections of increasing diameter in sequence from the drilling tip to form a stepped lateral cutting edge 14. In the present application, the drill body 1 refers to: and the working part of the reamer is planted on cheeks.

In this application, the drill handle 2 is a part of the zygomatic implanting reamer for clamping and is used for transmitting power required for drilling, such as torque and axial force.

In this application, a helical groove refers to a helical groove in the drill body 1.

In this application, the drill tip, which may also be referred to as the drill point, undertakes the primary cutting task.

The land in this application refers to the part of the outer rim of the drill body 1 where no helical groove is cut.

In a more specific embodiment, the helical groove of the outer surface of the drill body 1 is clockwise or counter-clockwise. When the spiral groove is clockwise, the zygomatic grafting reamer has cutting capability when rotating clockwise and has no cutting capability when rotating anticlockwise in the use process; when the spiral structure is anticlockwise, the zygomatic implanting reamer has cutting capacity when rotating anticlockwise and has no cutting capacity when rotating clockwise in the use process. Both fig. 1 and 2 are clockwise helical structures.

At present, the columnar drill body without the step section is clinically applied, the side cutting function is not realized, heat is generated greatly in the using process, the swinging is obvious, the control cavity is difficult to prepare accurately in the clinical operation, and the ideal initial stability of the tooth seed body is not favorably obtained. The point of drill of reaming planting reamer is for not having the chisel edge design in this application, and it assembles into the closed angle to have sharp point of drill structure, the drill body is diameter crescent echelonment, does benefit to the tooth and plants the nest reaming, gradually deepens of drill body when being equipped with the hole, can play the effect of stable drill body like this, and greatly reduced heat production effectively avoids osteonecrosis, provides the success rate that tooth was planted. Meanwhile, the alveolar bone on the side wall of the cavity can be effectively extruded by the structural design of the step section, so that the bone density is improved, and the ideal initial stability of the dental implant can be obtained. On the other hand, the cheekbone planting reamer in this application has side direction cutting edge 14, and the stability of boring when doing benefit to the reaming avoids planting the nest hole and takes place the skew. When using this cheekbone of wearing to plant reamer in this application to carry out reaming, be equipped with the hole, because sharp pointed end and ladder section structure do benefit to high-efficient completion nest hole reaming and prepare. In a word, when in use, the drill design can greatly improve the dental implantation efficiency, save the clinical operation time of an operator and improve the comfort level of a patient; the method can be used for the stepped extremely poor prepared holes for other conventional dental implants, and is beneficial to the initial stability of the dental implants, so that patients can obtain dental restoration as soon as possible.

In a preferred embodiment as shown in fig. 4, the length a of the spiral groove 13 is 18 to 25mm, preferably 18 to 22mm, such as 18mm, 19mm, 20mm, 21mm and 22 mm. In a more preferred embodiment, the length a of the helical groove is 20 mm.

In a preferred embodiment, the drill body is a mark zone 16 from the tail end of the blade to the end close to the drill handle, and the length of the mark zone 16 is 25-60 mm. Such as 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm and 60 mm.

According to the length of the identification area 16, the cheekbone planting reamer at least comprises a long drill group and/or a short drill group. In a preferred embodiment, the length of the marking zone 16 of the long drill group is 50 to 60 mm. In a preferred embodiment, the length of the marking zone 16 of the short drill group is 25 to 35 mm.

The long drill group is shown in fig. 1a), and the length of the identification area 16 in the long drill group is 55 mm.

The short drill group is shown in fig. 1b), and the length of the identification area 16 in the short drill group is 30 mm.

In a more preferred embodiment, the indication area 16 is provided with a plurality of scale marks 17, and the scale marks 17 are used for indicating the distance from one end of the drill tip 11 of the zygomatic planting reamer.

In a more preferred embodiment, the graduation marks 17 are marking lines and/or marking grooves of different colors. As shown in fig. 1, the scale mark 17 is a mark groove using mark lines coated with different colors. In a preferred embodiment, the mark area 16 is provided with a scale mark every 5 mm-10 mm.

The number of the scale marks 21 can be determined according to the length of the mark area 16 and the use requirement. In a more specific embodiment as shown in fig. 1b), the marking zone 16 is relatively short, and six marking grooves coated with different colors are provided on the marking zone 16, in the direction away from the drill tip, in the following order: pink marking line 20mm from one end of the drill tip, white marking line 30mm from one end of the drill tip, yellow marking line 35mm from one end of the drill tip, red marking line 40mm from one end of the drill tip, blue marking line 45mm from one end of the drill tip, and green marking line 50mm from one end of the drill tip. In a more specific embodiment, as shown in fig. 1a), the marking zone 16 is relatively long, and eight graduated markings are provided on the marking zone 16, in the direction away from the drill tip, in the following order: pink marking line with the distance of 20mm from one end of the drill tip, white marking line with the distance of 30mm from one end of the drill tip, yellow marking line with the distance of 35mm from one end of the drill tip, red marking line with the distance of 40mm from one end of the drill tip, blue marking line with the distance of 45mm from one end of the drill tip, green marking line with the distance of 50mm from one end of the drill tip, black marking line with the distance of 55mm from one end of the drill tip and purple marking line with the distance of 60mm from one end of the drill tip. The scale mark design is beneficial to doctors and other users to well observe the depth of the drill when the drill is used for reaming in the process of zygomatic tooth implanting operation, so that the problem that the drill body damages other important anatomical structures and serious complications are caused due to too deep is avoided. In addition, according to the degree of depth that design tooth was planted before the art, when using this to bore, through observing scale identification area, can effectively observe and compare whether reach the design requirement before the art, this identification area plays the effect of a dipperstick.

In a preferred embodiment, the drill shank 2 has a length of 10 to 20mm, preferably 13 to 17mm, such as may be 13mm, 14mm, 15mm, 16mm and 17 mm. In this application the diameter that drillstock 3 is international unified standard is 2.2 ~ 2.5mm machine buckle structure. In a more specific embodiment as shown in fig. 1, the drill shank 2 is 14.5mm in length.

In a preferred embodiment, the set of zygomatic planting reamers comprises at least a large-sized drill, a medium-sized drill and a small-sized drill according to the structure of the cutting land, wherein the large-sized drill and the medium-sized drill have the same number of step sections; the number of the stepped sections of the small-size drill is more than that of the large-size drill and the medium-size drill.

In a more preferred embodiment, the number of the stepped sections of the large-size drill and the medium-size drill is 3, and the number of the stepped sections of the small-size drill is 4.

In a more preferred embodiment, the large size land comprises a first step, a second step and a third step of increasing diameter in sequence from the drill tip.

In a more preferred embodiment, the medium gauge drill tip comprises a first step, a second step and a third step of increasing diameter in that order from the drill tip.

In a more preferred embodiment, the small drill cutting edge lobe includes a first step, a second step, a third step and a fourth step of increasing diameter in order from the drill tip.

In a preferred embodiment as shown in fig. 4, the diameter d of the first step of the large drill_{1 is large}2.5-3 mm. In a more specific embodiment, d_{1 is large}Is 2.8 mm.

In a preferred embodiment as shown in fig. 4, the diameter d of the second step of the large drill_{2 is large}3-3.5 mm. In a more specific embodiment, d_{2 is large}Is 3.2 mm.

In a preferred embodiment as shown in fig. 4, the diameter d of the third step of the large drill_{3 is large}Is 4.0 to 4.5 mm. In a more specific embodiment, d_{3 is large}Is 4.2 mm.

In a preferred embodiment as shown in fig. 4, the diameter d of the first step of the medium drill_{1 in}2.5-3 mm. In a more specific embodiment, d_{1 in}Is 2.8 mm.

In a preferred embodiment as shown in fig. 4, the diameter d of the second step of the medium drill_{In 2 (2)}Is 2.8 to 3.2 mm. In a more specific embodiment, d_{In 2 (2)}Is 3.0 mm.

In a preferred embodiment as shown in fig. 4, the diameter d of the third step of the medium drill_{3 in}Is 4.0 to 4.5 mm. In a more specific embodiment, d_{3 in}Is 4.2 mm.

In a preferred embodiment as shown in fig. 4, the diameter d of the first step of the small gauge drill_{1 is small}Is 1.8-2.2 mm. In a more specific embodiment, d_{1 is small}Is 2.0 mm.

In a preferred embodiment as shown in fig. 4, the diameter d of the second step of the small drill_{2 small}2.2-2.8 mm. In a more specific embodiment, d_{2 small}Is 2.5 mm.

In a preferred embodiment as shown in fig. 4, the diameter d of the third step of the small drill_{3 in}Is 2.8 to 3.2 mm. In a more toolIn an embodiment of the body, d_{3 small}Is 3.0 mm.

In a preferred embodiment as shown in FIG. 4, the diameter d of the fourth step of the small gauge drill_{4 small}Is 4.0 to 4.5 mm. In a more specific embodiment, d_{4 small}Is 4.2 mm.

In a preferred embodiment as shown in FIG. 4, the length L of the first step of the large drill_{1 is large}3 to 5mm in a more specific embodiment, L_{1 is large}Is 4 mm.

In a preferred embodiment as shown in FIG. 4, the length L of the second step of the large drill_{2 is large}10 to 15mm in a more specific embodiment, L_{2 is large}Is 12 mm.

In a preferred embodiment as shown in FIG. 4, the length L of the third step of the large drill_{3 is large}3 to 5mm in a more specific embodiment, L_{3 is large}Is 4 mm.

In a preferred embodiment as shown in FIG. 4, the length L of the first step of the medium drill_{1 in}6 to 10mm in a more specific embodiment, L_{1 in}Is 8 mm.

In a preferred embodiment as shown in FIG. 4, the length L of the second step of the medium drill_{In 2 (2)}6 to 10mm in a more specific embodiment, L_{In 2 (2)}Is 8 mm.

In a preferred embodiment as shown in FIG. 4, the length L of the third step of the medium drill_{3 in}3 to 5mm in a more specific embodiment, L_{3 in}Is 4 mm.

In a preferred embodiment as shown in FIG. 4, the length L of the first step of the small drill_{1 is small}2.5 to 5mm in a more specific embodiment, L_{1 is small}Is 4 mm.

In a preferred embodiment as shown in FIG. 4, the length L of the second step of the small drill_{2 small}2.5 to 5mm in a more specific embodiment, L_{2 small}Is 4 mm.

In a preferred embodiment as shown in FIG. 4, the length L of the third step of the small drill_{3 small}6 to 10mm in a more specific embodiment, L₃Is 8 mm.

In a preferred embodiment, as shown in FIG. 4, the length L of the fourth step of the small drill_{4 small}2.5 to 4.5mm in a more specific embodiment, L_{4 small}Is 3 mm.

The diameter and length of each step section are designed specifically according to the use in the cheekbone threading operation of a human oral cavity during the tooth implantation operation, the bone characteristics of the cheekbone position during the tooth implantation operation are met, the diameter increment of each step section and the length of each step section on the reamer drill body are designed according to the actual operation, too much or too little of the diameter increment and the length of each step section cannot bring comfort, the stability in the process of preparing holes is not high, the deviation of an implantation port is easy to occur, and various complications are caused.

In a preferred embodiment as shown in fig. 1, the drill tip 11 has a length of 0.2 to 0.8 mm. Such as 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm or 0.8 mm. In the particular embodiment of fig. 1, the drill tip 11 has a length of 0.5 mm.

In a preferred embodiment as shown in fig. 2 and 5, the land width b of the drill body 1 is 0.5 to 7 mm.

In this application, two lands located on the same cross-section of the drill body are of the same width.

In this application, the land width decreases in a step in a direction toward the drill tip.

In the present application, the land width means: the length between the land edge, i.e., the secondary cutting edge, and the land tail root edge, measured perpendicular to the land edge, i.e., the secondary cutting edge. The tail root edge refers to the intersecting edge line of the blade back and the spiral groove on the blade. In a more preferred embodiment, the first step land width b is 0.5 to 2 mm; the width of the second step section edge land is 1-5 mm, the width of the third step section edge land is 2-6 mm, and the width of the fourth step section edge land is 3-7 mm.

In a preferred embodiment, as shown in fig. 7, the helix angle α of the drill body 1 is 30-60 °.

In a preferred embodiment, a transition circular truncated cone 15 is arranged between two adjacent step sections, and the slope β of the transition circular truncated cone is 30-60 degrees based on the central axis of the drill body 1, and in the specific embodiment shown in fig. 1-4, the slope β of the transition circular truncated cone is 45 degrees.

Through the structure of above-mentioned transition round platform in this application embodiment for the smooth and smooth transition of ladder section has reduced the resistance of being equipped with the hole in-process location and has bored, has also avoided because complication such as osteonecrosis that a large amount of heats formation.

In accordance with the parameters of the specific embodiment described above, in a more specific embodiment as shown in fig. 1 and 2, the zygomatic implant reaming drill is divided into two groups, a 65mm short drill and a 90mm long drill.

When in use, the zygomatic implantation reaming drill set is placed in a tool box, such as a tool box used in V-II-V implantation surgery, and is disinfected for clinical use.

The clinical application instructions are as follows:

1) according to the cheekbone implantation needing routine anesthesia, implantation site determination, flap turning and maxillary sinus treatment, a cheekbone implantation detector finds the entrance site of the cheekbone base part, and a cheekbone implantation positioning drill is initially prepared and completes three-dimensional direction confirmation;

2) according to the height of the face of a patient, a long drill group or a short drill group is selected for preparing a zygomatic bone implantation channel: firstly, a small drill in a long drill group or a short drill group is selected, a maxillary sinus window or a bone groove is opened from an alveolar ridge planting site, and the zygomatic bone planting reamer is placed into a zygomatic bone base positioning pore canal according to the finished three-dimensional positioning direction. At the moment, after the three-dimensional position is further confirmed according to the preoperative design scheme, ZAGA classification relation and facial anatomical marks according to the indication direction angle of the zygomatic bone implanting reamer, the zygomatic bone implanting reamer is controlled, the drilling speed of 800 plus 1200 drills/min is lightly pressurized under the condition of sufficient water cooling and soft tissue protection, the preparation can be gradually carried out in the zygomatic bone body along the three-dimensional direction, when the preparation depth reaches the preoperative design depth of 2/3, the reamer can be withdrawn, after the three-dimensional direction is confirmed to be correct by probing again with a zygomatic implanting detector, the careful preparation can be carried out by using a small drill (800 plus 1200 drills with sufficient water cooling), when the preparation depth is close to the preoperative design length, under the condition that soft tissue is fully protected by an assistant and the visual field is exposed, the index finger belly of an operator is lightly pressed on the skin surface of a facial mark point, when the finger belly feels slight vibration, the index finger reaming drill is shown to break through the surface cortex of, and (4) obtaining the reaming depth according to the indication of the small drill identification area, carefully withdrawing the small drill, and confirming the implantation depth of the puncture site and the length of the implant by using the zygomatic puncture implantation detector again. According to the condition of the cheekbone bone, a middle-size drill and a large-size drill are used for completing the channel preparation in one step, if the cheekbone bone is softer, such as IV-class bone, the small-size drill completes the full-length preparation, and then the 4.2mm diameter cheekbone penetrating implant can be implanted; for example, for class III bones, according to the thickness of the surface skin texture of cheekbones, the implantation can be tried after the preparation of the small-sized drill in the full length, and the preparation of the middle-sized drill in the full length can be added under the condition that the cortical bone is difficult to implant, so that the implant implantation can be smoothly completed; if the II-class bone and the I-class bone need to be matched with a large-size drill to prepare 1/2 and 2/3 with the whole length, the implant can be smoothly implanted.

3. And (4) proposing: the drilling speed is 800-; pressurization is avoided; selecting a long group or a short group of drills according to the height of the view; small, medium and large reamers are used in sequence according to the bone condition, and the preparation depth is noted.

4. The subsequent treatment process is completed according to the planting routine.

After clinical use, the cleaning and disinfection kit is put in the tool box again for standby.

In conclusion, the zygomatic implantation reaming drill set provided by the invention has sharp drill points and lateral cutting edges, is beneficial to the stability of the drill during reaming, effectively avoids the deviation of the implantation cavity, can provide effective guarantee for the correct implantation of the final zygomatic implant, greatly improves the dental implantation efficiency, saves the clinical operation time of an operator, and improves the comfort of a patient. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.