KR20090106043A - Drill Tool for Lifting Sinus - Google Patents

Abstract

PURPOSE: A drill tool for lifting sinus graft is provided, which can prevent internal membrane of the sinus graft from being damaged in boring work. CONSTITUTION: A drill tool for lifting sinus graft includes a perforation drill(100) and a maxillary sinus internal membrane lifting drill. The perforation drill is equipped with a cutting body(110) in which an inner side cutting part is prepared in one side and an internal membrane contact body(130) prepared in the partial domain of the outer side surface. The maxillary sinus internal membrane lifting drill is equipped with a cutting body in which a residual cutting part is prepared in the partial domain of the outer side surface and an internal membrane lifting body which lifts the internal membrane in the direction of being separated from the alveolar bone.

Description

Drill tool for lifting maxillary sinus

The present invention relates to a drill tool for maxillary sinus elevation, and more particularly, not only can easily and quickly perform the perforation of the alveolar bone for the implant procedure, but also can perforate the maxillary sinus lining without damage. The present invention relates to a drill tool for maxillary sinus implantation in which sufficient bone graft material can be implanted in the secured space, thereby enabling a solid implant placement.

Implant (implant) refers to a substitute that is originally restored when human tissue is lost, but in the dentist refers to the implantation of artificial teeth. In order to replace the lost tooth root (tooth root), the tooth root made of titanium (titanium), etc., which is not rejected by the human body, is planted in the alveolar bone where the tooth falls out, and the artificial tooth is fixed to restore the function of the tooth.

In the case of general prosthetics or dentures, the surrounding teeth and bones are damaged over time, but the implants do not damage the surrounding dental tissues, and they have the advantage that they can be used semi-permanently because they have the same function or shape as natural teeth and do not cause tooth decay.

Implants also enhance the function of dentures and improve the esthetic aspects of dental prosthetic restorations, as well as in single brace restorations, and in partially degenerative and complete teethless patients. Furthermore, it disperses excessive stress on surrounding supportive bone tissue and helps stabilize teeth.

On the other hand, the implant success rate in the maxillary posterior part is known to be relatively low compared to the success rate in other parts, for example, the mandibular posterior part during the implantation procedure. This is because it is not easy to implant.

In other words, the maxillary sinus, which is located between the upper molar and, more precisely, the upper molar and the side of the nose, is a space surrounded by the mucous membrane and expands downward when the tooth is lost physiologically. As a result of the bone absorption, the amount of bone that can be implanted is insufficient due to the downward expansion, which makes it difficult to implant the implant into the maxillary posterior molar.

In this case, after forming a space by elevating the maxillary sinus lining, a bone graft material is implanted in the secured space, and implantation is implanted therein. Such methods include a vertical approach and a lateral approach.

First, the vertical approach is a method of securing a certain amount of residual bone in the implant site, and tapping the maxilla several times with a device called a chisel and hammer-shaped osteotomes to prevent damage to the maxillary sinus lining. Then, a little bit of bone graft material through the hole.

By the way, when using this vertical approach, because the maxillary sinus lining cannot be seen directly during the procedure, the procedure takes a long time because the procedure is performed very carefully while checking the process by X-rays.

In addition, the lateral approach is a method when the remaining bone of the implant site is very insufficient, forming a hole on the side of the maxillary sinus, elevating the lining of the maxillary sinus, and transplanting a bone graft material through the hole. By the way, this method has the advantage that the procedure can be faster than the vertical approach, there is a concern that the edema may occur in the treatment site as well as the operation itself is difficult.

Therefore, in order to solve these problems, recently, maxillary sinus elevation using a general implant drill has been studied, and furthermore, it is actually applied.

However, the maxillary sinus elevation using such a general implant drill may have the advantage that the maxillary perforation can be easily and quickly performed, but the cutter is formed at the tip of the implant drill, that is, to have the same direction as the direction of rotation of the drill. When the maxilla is drilled, the maxilla may not be cut precisely but rather irregularly cut. In addition, the tip of the implant may come into contact with the maxillary sinus lining, resulting in damage such as tearing of the maxillary sinus lining. There may be a problem in that it is not able to secure the space for implant placement because it is not accurately lifted.

Accordingly, it is an object of the present invention to provide a drill tool for maxillary sinus elevation that can not only easily and quickly perform the perforation of the alveolar bone for implantation, but also prevent the maxillary sinus lining from being damaged during the drilling operation.

In addition, another object of the present invention is to drill the maxillary sinus lining without damaging the perforation of the maxillary sinus and to implant sufficient bone graft material in the secured space, thereby allowing a solid implant placement to be performed To provide tools.

According to the present invention, in the maxillary sinus elevation drill tool for raising the maxillary sinus lining to perforate the alveolar bone, at least one surface of the lining of the maxillary sinus is inserted into a hole of the alveolar bone perforated to an adjacent region of the maxillary sinus lining A drill for cutting an inner portion of the alveolar bone adjacent to the maxillary sinus lining until it is exposed, the drill for drilling comprising: a cutting body; And an inner film having a cross-sectional area smaller than that of the cutting body and protruding upward with respect to the upper surface of the cutting body, wherein an upper cutting portion for cutting the alveolar bone between the hole and the maxillary sinus lining is provided in at least one region of the outer surface. A maxillary sinus elevation drill tool comprising a contact body is achieved.

Here, the upper cutting portion may be an inverted cutter that is cut by the blade when the cutting body is retracted by the rotation.

In addition, the upper cutting portion may be provided by a groove formed on the outer surface of the inner film contact body.

At least one region of the outer surface of the cutting body is provided with an inner cutting portion for cutting at least one region of the inner wall of the alveolar bone forming the hole by rotation, and the inner cutting portion is formed on the outer surface of the cutting body. It may be provided by the groove to be formed.

In addition, at least one region of the outer surface of the cutting body is provided with an inner cutting portion for cutting at least one region of the inner wall of the alveolar bone forming the hole by rotation, the inner cutting portion, the cutting body is rotated It may be an inverted cutter which is cut by the blade at the time of retreat by.

The diameter of the lower end of the inner body contact body is preferably 50 to 80 percent of the diameter of the upper end of the cutting body.

The drilling drill further includes a connection body extending from a lower end of the cutting body and having a connection groove formed at an end thereof so as to be connectable with a handpiece for providing rotational force, wherein the cutting body, the inner membrane contact body, and the Inside the connecting body, in order to provide saline to the work site during the drilling operation of the alveolar bone, through holes communicating with each other along the axial direction may be formed.

It is preferable that the cutting body, the inner film contact body and the connecting body are integrally manufactured.

In addition, the other object, according to the present invention, in the maxillary sinus elevation drill tool for raising the maxillary sinus lining and perforation of the alveolar bone, at least one surface of the maxillary sinus lining is inserted into the hole of the maxillary sinus bone to expose And a coarse drill, wherein the maxillary sinus coarse drill comprises: a cutting body in which a residual cutting portion for cutting at least one region of the inner wall of the alveolar bone forming the hole by rotation is provided in at least one region of the outer surface; And an endothelial coarse body coupled to the upper end of the cutting body to protrude relative to the upper end of the cutting body so that the cutting body advances the inner portion of the alveolar bone and raises the maxillary sinus lining in a direction away from the alveolar bone during cutting. It is also achieved by a drill tool for maxillary sinus elevation.

Here, the residual cutting portion may be a reverse cutter that is cut by the blade when the cutting body is retracted by the rotation.

The remaining cutting portion may be provided by a groove formed on the outer surface of the cutting body.

The cutting body is provided in a hollow cylindrical shape, it is preferable that the outer upper end portion of the cutting body has a sawtooth shape in order to cut a portion protruding from the inner wall of the alveolar bone forming the hole.

The inner film giant body, the body coupling member is coupled to the upper region of the central through-hole formed in the axial direction of the cutting body; And is coupled to the upper end of the body coupling member so as to be relatively rotatable with respect to the cutting body when contacted with the maxillary sinus lining, and is coupled to the upper end of the body coupling member in the shape of a disc, the upper surface of the maxillary sinus lining It is preferable to include an inner membrane contact member in contact with the maxillary sinus lining.

The outer surface of the body coupling member is provided with a pin groove rail formed in a predetermined depth along the circumferential direction, when the body coupling member and the inner membrane contact member is coupled to the end of the pin of the pin groove rail is located in the cutting body The penetrating pin through hole may be formed.

The outer circumferential edge of the upper surface of the inner membrane contact member is preferably rounded to prevent damage to the upper lining of the maxillary sinus when the inner membrane contact member contacts one surface of the inner maxillary sinus.

The inner film contact member may be provided to protrude more than the upper end of the cutting body, the diameter of the inner film contact member may be provided smaller than the outer diameter of the cutting body.

The maxillary sinus lining coarse drill is formed extending from the lower end of the cutting body, and further comprises a connecting body provided with a connection groove at the end to be connected to the handpiece for providing rotational force, the connecting body and the endothelial coarse body Inward, through-holes communicating with each other along the axial direction may be formed in order to provide saline to the work site during drilling of the alveolar bone.

On the other hand, the above object and other objects, according to the present invention, the cutting body is provided in at least one region of the outer surface and the inner cutting portion for cutting at least one region of the inner wall of the alveolar bone forming a hole, the cutting body It has a cross-sectional area smaller than the cross-sectional area of the upper surface of the cutting body is provided to protrude upward and the upper cutting portion for cutting the alveolar bone between the hole and the maxillary sinus lining is provided with an inner film contact body provided in at least one region of the outer surface Drill for drilling; And a residual cutting portion which rotates and cuts at least one region of the inner wall of the alveolar bone, which is inserted into the hole of the alveolar bone where the maxillary sinus lining is exposed by the drilling drill, to at least one region of the outer surface. The cutting body is coupled to the upper end of the cutting body is provided so as to protrude compared to the upper end of the cutting body is the cutting body to advance the inner portion of the alveolar bone and during the cutting the maxillary sinus lining in the direction away from the alveolar bone It is also achieved by a maxillary sinus elevation drill tool comprising a maxillary sinus lining drill with an endothelial elevation body.

Here, after the bone graft material is introduced between the alveolar bone and the maxillary sinus lining formed by the elevation of the maxillary sinus lining of the maxillary sinus lining drill, the bone graft material is pressed between the alveolar bone and the maxillary sinus lining It may further include an implant pressing mechanism.

According to the present invention, not only can easily and quickly perform the perforation of the alveolar bone for the implant procedure, but also can prevent the maxillary sinus lining from being damaged during the perforation operation.

In addition, during drilling, the inner lining of the maxillary sinus can be elevated without damage, and sufficient bone graft material can be implanted in the secured space, thereby enabling solid implant placement.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

The maxillary sinus elevation drill tool according to an embodiment of the present invention is used after a hole is first formed in the alveolar bone 5 to be adjacent to the maxillary sinus lining 3 (see FIG. 4) by a hole forming drill (not shown). That is, by drilling a region of the alveolar bone 5 primarily from the maxillary sinus lining 3 to 1 to 2 millimeters (mm) by using a hole forming drill, the drilling drill 100 to be described later is the alveolar bone (5). It can be easily introduced into the hole 7 of the).

The drilling tool for maxillary sinus elevation according to an embodiment of the present invention, for drilling the inner portion of the alveolar bone (5) until it is introduced into the hole (7) formed by the hole-forming drill to contact the maxillary sinus lining (3) The maxillary sinus lining drill, which elevates the maxillary sinus lining 3 exposed by the drill 100 (see FIG. 1) and the drilling drill 100 and cuts the inner portion of the alveolar bone 5 adjacent to the maxillary sinus lining 3 ( 200, see Fig. 5), and bone graft material pressing mechanism for uniformly dispersing bone graft material after implanting bone graft material (not shown) in the space formed by the maxillary sinus lining (3) of the maxillary sinus lining drill (200) (Not shown). Here, although not shown, the hole forming drill is subsequently used by first drilling a region of the alveolar bone 5 in which an implant (not shown) is to be placed until it is 1 to 2 millimeters (mm) from the maxillary sinus lining 3. Drill 100 for drilling is to be easily introduced into the hole 7 of the alveolar bone (5).

1 is a front view of a drilling drill provided in the maxillary sinus elevation drill tool according to an embodiment of the present invention, Figure 2 is a plan view of Figure 1, Figure 3 is a vertical sectional view of Figure 1, Figure 4 is Figure 1 Figure 2 is a view showing the operation of cutting the inner portion of the alveolar bone until the drill drill shown in contact with the maxillary sinus lining.

As shown in these drawings, the drilling drill 100 of the maxillary sinus elevation drill tool according to an embodiment of the present invention, the cutting body 110 is formed with a reverse cutter 111 on the outer surface as a basic body And an inner membrane contact which protrudes from the upper surface of the cutting body 110 and cuts the alveolar bone 5 between the hole 7 and the maxillary sinus lining 3 until its outer surface is in contact with at least one surface of the maxillary sinus lining 3. Body 130 and the connecting body is formed extending from the lower end of the cutting body 110 and the connection groove 151 is detachably coupled to an external device for providing rotational force, that is, a handpiece (not shown) ( 150). Here, the inner film contact body 130 and the connection body 150 provided at the upper and lower portions of the cutting body 110 are provided integrally with the cutting body 110.

First, the cutting body 110, as shown in Figure 1, a predetermined section from the top to the lower direction is provided in a cylindrical shape and the lower portion is provided in a tapered shape, the cutting body 110 is provided in a cylindrical shape The inner side cutting portion 111, that is, the reverse cutter 111 of the present embodiment is formed regularly on the outer surface of the).

The cutting body 110 having such a structure is a hole 7 drilled to have an adjacent distance of about 1 to 2 millimeters (mm) from the maxillary sinus lining 3, for example, drilled a predetermined depth by the aforementioned hole forming drill. The inner part of the hole 7 of the alveolar bone 5 is cut until the inner membrane contact body 130 provided to protrude on the upper end of the cutting body 110 contacts the maxillary sinus lining 3.

For example, when the protruding height of the inner membrane contact body 130 is 0.5 millimeters, the cutting body 110 is an inner portion of the alveolar bone 5 that is 0.5 millimeters from the maxillary sinus lining 3 using the reverse cutter 111 formed on the outer surface thereof. It will be cut until. However, the inner membrane contact body 130 of the present embodiment has been described as having a height of 0.5 millimeters, but may be provided as a protrusion height of any one of 1.0, 1.5 and 2.0 millimeters.

On the other hand, when cutting the inner portion of the alveolar bone 5 using the reverse cutter 111 of the cutting body 110, the alveolar bone 5 can be prevented from being excessively cut by the structure of the reverse cutter 111. have. That is, since the reverse cutter 111 of the cutting body 110 is provided so that the tip thereof has a direction opposite to the rotational direction of the cutting body 110, in other words, the reverse cutter 111 is formed by the cutting body 110. Since the cutting body 110 is arranged to be cut by the blade at the retreat, the cutting body 110 rotates in contact with the alveolar bone 5, and does not cut the inner portion of the alveolar bone 5 to be cut with a sharp blade rather than cutting it. As it can be cut through one side of the blade is gently provided.

Therefore, it is possible to prevent damage to the alveolar bone 5 or the maxillary sinus lining 3 due to excessive cutting that is generated when cutting with a sharp blade, and the alveolar bone 5 generated during cutting of the alveolar bone 5 is a reverse cutter 111. Filled between the) alveolar bone (5) there is an effect that can mitigate the impact generated during cutting. Thus, more sophisticated cutting operations can be performed.

The inner membrane contact body 130 is a portion protruding from the upper surface of the cutting body 110, and serves to cut the alveolar bone 5 between the bottom surface of the hole 7 formed by the hole forming drill and the maxillary sinus lining 3. In charge.

The intima contact body 130 performs a cutting operation on the inner portion 5 of the alveolar bone 5 until it contacts the maxillary sinus lining 3. To this end, the outer surface of the inner membrane contact body 130, the upper cutting portion 131 that performs a function substantially similar to the reverse cutter 111 of the above-described cutting body 110, that is, the reverse cutter 131 of the present embodiment Formed. The reverse cutter 131 of the inner membrane contact body 130 has a vane shape as viewed from the top, and the alveolar bone 5 when a gentle inclined surface that forms a blade of the reverse cutter 131 and a gentle inclined surface rotates. Run the cutting operation on. Therefore, even when the alveolar bone 5 is reliably cut, the outer surface of the intima contact body 130 forms a smooth surface, thereby preventing the maxillary sinus lining 3 from being damaged even when it is in contact with the maxillary sinus lining 3.

In addition, the inner membrane contact body 130 is provided with a semi-ellipse vertical cross section in the axial direction, thereby damaging the maxillary sinus inner membrane 3 even when the maxillary sinus inner membrane 3 and the outer surface of the inner membrane contact body 130 come into contact with each other. It does not occur. That is, instead of causing damage to the maxillary sinus lining 3, an effect of slightly raising the maxillary sinus lining 3 to correspond to the outer surface shape of the lining contact body 130 may be generated.

On the other hand, due to the shape of the inner membrane contact body 130, as shown in Figure 4, the portion (A) of the alveolar bone (5) adjacent to the maxillary sinus lining (3) remains uncut. This is because the diameter of the lower end of the inner membrane contact body 130 is provided to have a length of approximately 50 to 80 percent of the diameter of the upper end of the cutting body 110. The inner part of the alveolar bone 5 forming the hole 7 and the lower end of the hole 7 can be smoothly cut without interference. However, due to the curved shape of the inner membrane contact body 130, the inner portion (A) of the alveolar bone (5) located on both sides of the inner membrane contact body 130 is not cut, this portion (A) will be described later The inner portion forming the hole 7 of the alveolar bone 5 is cut by the maxillary sinus lining coarse drill 200 to form a uniform surface.

And, the connecting body 150, as shown in Figures 1 and 3, is formed to extend from the lower end of the cutting body 110 is a portion connected to the handpiece to provide a rotational force. The end of the connecting body 150 is provided with a connecting groove 151 to which the handpiece is detachably coupled.

On the other hand, the drilling drill 100, as shown in Figure 3, the through hole 160 is formed through the longitudinal direction of the central axis. Through hole 160, when drilling drill 100 rotates and drills a position where the implant is to be placed, it is possible to provide the saline solution from the outside into the alveolar bone (5), thereby drilling the alveolar bone (5) Work can be made more smoothly. However, many handpieces that cannot provide saline along the through-hole 160 of the drill 100 are used. In this case, the above-described drill holes 100 do not pass through the through-hole 160. Saline may be provided along the groove of the reverse cutter 111.

Hereinafter, the configuration of the maxillary sinus endometrial coarse drill 200 for raising the maxillary sinus lining 3 exposed by the drilling drill 100 to secure a space in which the bone graft material can be implanted will be described in detail.

FIG. 5 is a front view of the maxillary sinus lining drill of the maxillary sinus drill tool according to an embodiment of the present invention, FIG. 6 is a vertical sectional view of FIG. 5, and FIG. 7 is a maxillary sinus lining drill shown in FIG. 5. After the endothelial giant body is removed, it is a plan view viewed from above, and FIG. 8 is a view showing an operation of the maxillary sinus lining drill shown in FIG. 4 to lift the maxillary sinus lining.

As shown in these figures, the maxillary sinus lining drill 200 of the maxillary sinus elevation drill tool according to an embodiment of the present invention forms a basic body, the outer surface of the residual cutting portion 211, that is, the reverse cutter of the present embodiment An inner endometrial colossus, which is coupled to an upper portion of the cutting body 210 and a cutting body 210 having a 211 formed thereon, rotates the cutting body 210 and moves up the maxillary sinus lining 3 when advancing to the maxillary sinus lining 3. Body 230 and a connection body 250 extending from the lower end of the cutting body 210 and the connection body 250 is formed with an external device for providing rotational force, that is, a connection groove 251 detachably coupled to the handpiece. . Here, the connection body 250 provided below the cutting body 110 is provided integrally with the cutting body 210.

First, the cutting body 210, as shown in Figures 5 to 7, is provided in a cylindrical shape, the outer surface is a reverse cutter substantially similar to the reverse cutter 111 provided on the outer surface of the cutting body 110 described above (211) is formed. Therefore, the upper end of the cutting body 210 is provided with a sawtooth shape, but due to the structure of the reverse cutter 211 blades that are not cut by the shape of the drilling drill 100 (A, FIG. 4) gently provided Through one surface of the cutting to be substantially one surface with the inner surface of the other part, it can be further prevented damage to the maxillary sinus lining (3) by excessive cutting.

On the other hand, if the upper end of the cutting body 210 is in contact with the maxillary sinus lining (3) may damage to the maxillary sinus lining (3).

Therefore, in order to prevent the maxillary sinus lining 3 from being damaged by the cutting body 210, the lining giant body 230 is recessed along the axial direction of the cutting body 210 so as to protrude more than the upper end of the cutting body 210. Is disposed in the formed central through-hole 217 is detachably coupled to the cutting body 210, the upper end of the cutting body 210 by the protruding structure of the inner membrane giant body 230 that the maxillary sinus lining (3) You can stop it.

Referring to the structure of the inner film giant body 230 in more detail, the inner film giant body 230 of the present embodiment, as shown in Figure 5 and 6, the central through hole 217 of the cutting body 210 The body coupling member 231 introduced into the body, and the inner surface contact member of the disc shape is provided in the transverse direction at the top of the body coupling member 231 and maintains contact with the maxillary sinus lining 3 when the maxillary sinus lining 3 is elevated. 235).

The inner body giant body 230 should maintain a non-rotation state even if the cutting body 210 rotates, which is the upper surface of the inner body giant body 230 when the inner body giant body 230 rotates together with the cutting body 210. This is because damage such as tearing of the maxillary sinus lining 3 which is in contact with the skin may occur.

Therefore, the body coupling member 231 of the inner membrane giant body 230, as shown in Figure 6, the pin groove rail 233 is formed in the circumferential direction of the outer surface, the body coupling member 231 Pin through hole 213 is formed in the cutting body 210 corresponding to the position of the pin groove rail 233 of the pin through the pin 215 so that the end of the pin 215 is located in the pin groove rail 233 It is. That is, the pin 215 penetrating the cutting body 210 and positioned in the pin groove rail 233 not only prevents the endothelial giant body 230 from being released from the cutting body 210, but also prevents the endothelial giant body 230 from being engaged. When the upper body is in contact with the maxillary sinus lining 3, even if the cutting body 210 rotates, the intima giant body 230 may elevate the maxillary sinus lining 3 without rotating.

In addition, the disc-shaped inner membrane contact member 235 is a portion in direct contact with the maxillary sinus lining 3, and has an upper surface protruding from the upper end of the cutting body 210, and the diameter of the cutting body 210 is increased. It is provided smaller than the outer diameter. The outer periphery of the upper surface of the inner membrane contact member 235 is rounded, thereby preventing the maxillary sinus lining 3 from being damaged when the inner membrane contact member 235 contacts the maxillary sinus lining 3. On the other hand, since the inner membrane contact member 235 should be in contact with the maxillary sinus inner membrane 3 exposed by the aforementioned drill drill 100 (see FIG. 1), the diameter of the inner membrane contact member 235 is drilled for drilling. It is provided smaller than the lower diameter of the inner membrane contact body (130).

The connecting body 250 of the maxillary sinus lining drill 200 has a configuration substantially the same as the connecting body 150 of the above-described drilling drill 100. Description thereof will be omitted.

As described above, when cutting the inner portion forming the hole 7 of the alveolar bone 5 by the maxillary sinus lining drill 200, it is necessary to provide saline to the inside of the hole 7 where the cutting operation is performed. desirable. To this end, in the maxillary sinus lining coarse drill 200 of the present embodiment, as shown in Figure 6, the through-hole 260 is formed through the longitudinal direction of the central axis. However, many handpieces that cannot provide saline along the through-hole 160 of the maxillary sinus lining drill 200 are used in this case, and in this case, do not pass through the through-hole 260 of the maxillary sinus lining drill 200. The saline solution may be provided along the groove of the reverse cutter 211 described above.

As such, the maxillary sinus lining drill 200 of the present embodiment not only performs the cutting operation so that the inner portion of the alveolar bone 5 forming the hole 7 is substantially one surface, and simultaneously drills the drilling operation ( By elevating the maxillary sinus lining 3 exposed by 100), it is possible to secure a sufficient space for transplantation of bone graft material.

On the other hand, the bone graft material pressing mechanism, although not shown, after filling the bone graft material in the space formed by the maxillary sinus lining 3 of the maxillary sinus lining drill 200, the bone graft material is the maxillary sinus lining 3 and the alveolar bone (5) It is a mechanism to distribute uniformly and densely between). The bone graft material pressing mechanism is provided to have a smaller diameter than the inner diameter of the hole 7 so that the bone graft material can easily enter and exit the hole 7 of the alveolar bone 5, and the tip is provided with a flexible material so that the bone graft material can be implanted. It works flexibly and can pressurize bone graft material.

Hereinafter, the maxillary sinus elevation operation using the maxillary sinus elevation drill tool having such a configuration will be described.

First, a hole 7 is formed by using a hole-shaped drill in the alveolar bone 5 of the implant, for example, the maxillary posterior molar part. At this time, the hole 7 is drilled from the maxillary sinus lining 3 to a position adjacent to 1 to 2 millimeters.

Then, using the drill drill 100, as shown in Figure 3, the alveolar bone 5 forming a hole 7 until the upper surface of the inner membrane contact body 130 is in contact with the maxillary sinus lining 3 Cut the inner part of the. At this time, the inner portion of the alveolar bone 5 is prevented by excessive cutting by the reverse cutters 111 and 131 formed on the outer surface of the cutting body 110 and the inner film contact body 130 of the drill 100 for drilling. The upper surface of the intima contact body 130 may be cut to a certain degree, and the maxillary sinus lining 3 may be damaged even when the intima contact body 130 is in contact with the maxillary sinus lining 3. You can stop it.

Next, using the maxillary sinus lining drill 200, the maxillary sinus lining 3 is elevated. As described above, a sawtooth inverted cutter 211 is formed at the upper end of the cutting body 210 of the maxillary sinus lining coarse drill 200, that is, the portion which is not cut by the drilling drill 100, that is, the maxillary sinus lining 3. ) And the inner portion (A, FIG. 4) of the alveolar bone 5 adjacent to each other, and the bone graft material can be implanted by the endothelial giant body 230 elevating the maxillary sinus lining 3 at the same time as this cutting operation. Enough space can be secured.

Thereafter, the bone graft material is filled in the hole 7 of the alveolar bone 5. When filling the bone graft material, the bone graft material should be uniformly and densely distributed between the maxillary sinus lining (3) and the alveolar bone (5). .

Subsequently, the implant procedure is completed by placing the implant in the implantation position of the implant filled with bone graft material.

Thus, according to an embodiment of the present invention, using the drill 100, the maxillary sinus lining coarse drill 200, the implant is firmly placed in the alveolar bone 5, such as the bone bone lacking, such as the maxillary bone. Not only can the implant placement position be secured, but there is an effect of elevating the maxillary sinus lining 3 without damaging the maxillary sinus lining 3.

On the other hand, below, with reference to the accompanying drawings will be described a drill tool for maxillary sinus elevation according to another embodiment of the present invention. However, the same description as that described in the maxillary sinus elevation drill tool according to an embodiment of the present invention will be omitted.

9 is a view showing a part of the drilling drill provided in the maxillary sinus elevation drill tool according to another embodiment of the present invention, Figure 10 is a maxillary sinus elevation drill tool according to another embodiment of the present invention A part of a drill for drilling is shown.

As shown in these figures, drilling drills 100a and 100b according to other embodiments are provided in a substantially similar configuration to the drilling drill 100 of the above-described embodiment, the inner film contact body (130a, 130b) ) Is somewhat different in shape. That is, the endothelial contact body 130a of another embodiment has a larger protruding height than the protruding height of the endothelial contact body 130 of one embodiment, and the endothelial contact body 130b of another embodiment has an endothelial contact body of another embodiment ( It has a large protrusion height compared with the protrusion height of 130a).

This is because different drilling drills 100, 100a and 100b are applied according to the implantation position of the implant, the state of the alveolar bone 5 and the like. Therefore, before forming the hole 7 for implant placement, the state of the position where the implant is to be placed through X-ray imaging, etc., and the drilling drill (100, 100a, 100b having an appropriate protrusion height according to the state) It is preferable to select the treatment.

In the above-described embodiment, the inner contact body and the connecting body provided in the upper and lower portions of the cutting body, respectively, are described above as being integrally provided with the cutting body, but if the production is easy, they may be manufactured and combined, in particular to have different protrusion heights. After fabricating the inner membrane contact body, an appropriate inner membrane contact body may be detachably coupled to the cutting body as needed.

In addition, in the above-described embodiment, although the above-described reverse cutter is formed in the drill and the maxillary sinus lining drill, the grooves, etc., which are not the reverse cutter are formed, and the alveolar bone may be cut.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

1 is a front view of a drill for drilling provided in the maxillary sinus elevation drill tool according to an embodiment of the present invention.

2 is a plan view of FIG. 1.

3 is a vertical cross-sectional view of FIG. 1.

4 is a view showing an operation of cutting the inner portion of the alveolar bone until the drill drill shown in FIG. 1 contacts the maxillary sinus lining.

5 is a front view of the maxillary sinus lining coarse drill provided in the maxillary sinus elevation drill tool according to an embodiment of the present invention.

6 is a vertical cross-sectional view of FIG. 5.

7 is a plan view seen from the top after the endothelial giant body is removed from the maxillary sinus endocardium drill shown in FIG.

FIG. 8 is a view illustrating an operation of raising the maxillary sinus lining of the maxillary sinus lining drill shown in FIG. 4.

9 is a view showing a part of the drilling drill provided in the maxillary sinus elevation drill tool according to another embodiment of the present invention.

10 is a view showing a part of a drill for drilling provided in the maxillary sinus elevation drill tool according to another embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

100: drill drill 110: cutting body

130: inner body contact body 150: connecting body (for drilling drill)

200: maxillary sinus lining coarse drill 210: cutting body

230: inner body coarse body 231: body coupling member

235: inner member contact member 250: connecting body (of maxillary sinus inner lining drill)

Claims (19)

In the maxillary sinus elevation drill tool for elevating the maxillary sinus lining, A drill for drilling into the hole of the alveolar bone perforated to an adjacent region of the maxillary sinus lining and cutting an inner portion of the alveolar bone adjacent to the maxillary sinus lining until at least one surface of the maxillary sinus lining is exposed, The drill for drilling, Cutting body; And An inner film contacting portion having a cross-sectional area smaller than that of the cutting body and protruding upward with respect to the upper surface of the cutting body, wherein an upper cutting portion for cutting the alveolar bone between the hole and the maxillary sinus lining is provided in at least one region of the outer surface. A maxillary sinus elevation drill tool comprising a body. The method of claim 1, The upper cutting portion is a tool for drilling a maxillary sinus, characterized in that the cutting body is a reverse cutter that is cut by the blade when the cutting body is retracted by the rotation. The method of claim 1, The upper cutting portion is a maxillary sinus elevation drill tool, characterized in that provided by a groove formed on the outer surface of the inner film contact body. The method of claim 1, At least one region of the outer surface of the cutting body, the inner cutting portion for cutting at least one region of the inner wall of the alveolar bone forming the hole by rotation, The inner cutting portion is a maxillary sinus elevation drill tool, characterized in that provided by a groove formed on the outer surface of the cutting body. The method of claim 1, At least one region of the outer surface of the cutting body, the inner cutting portion for cutting at least one region of the inner wall of the alveolar bone forming the hole by rotation, Wherein the inner cutting portion, the cutting tool for maxillary sinus, characterized in that the cutting body is inverted cutter (cutting) is cut by the blade when the cutting body is retracted by the rotation. The method of claim 2, The diameter of the lower end of the inner body contact body is a maxillary sinus elevation drill tool, characterized in that 50 to 80 percent of the diameter of the upper end of the cutting body. The method of claim 1, The drill for drilling, It is formed extending from the lower end of the cutting body, and further comprising a connection body provided with a connection groove at the end to be connected to the handpiece for providing a rotational force, Inside the cutting body, the inner membrane contact body and the connecting body, through holes communicating with each other along the axial direction are formed in order to provide saline to the work site during the drilling of the alveolar bone. Colossus drill tool. The method of claim 7, wherein The cutting body, the inner film contact body and the connecting body is a maxillary sinus elevation drill tool, characterized in that the production is integrated. In the maxillary sinus elevation drill tool for elevating the maxillary sinus lining, And a maxillary sinus lining drill which is inserted into a hole of the alveolar bone perforated to expose at least one surface of the maxillary sinus lining, The maxillary sinus elevation drill, A cutting body provided with at least one region of the outer surface a residual cutting portion for cutting at least one region of the inner wall of the alveolar bone forming the hole by rotation; And Is coupled to the upper end of the cutting body compared to the upper end of the cutting body is coupled to the cutting body advances the inner portion of the alveolar bone and during cutting the maxillary sinus lining in the direction away from the alveolar bone includes an inner body giant body A maxillary sinus elevation drill tool, characterized in that. The method of claim 9, The remaining cutting portion is a maxillary sinus elevation drill tool, characterized in that the cutting body is cut by the blade when the cutting body is retracted by the rotation. The method of claim 9, The residual cutting portion is a maxillary sinus elevation drill tool, characterized in that provided by a groove formed on the outer surface of the cutting body. The method according to claim 10 or 11, wherein The cutting body is provided in a hollow cylindrical shape, the upper upper end portion of the cutting body has a sawtooth drilling tool, characterized in that it has a sawtooth shape for cutting a portion protruding from the inner wall of the alveolar bone forming the hole . The method of claim 9, The inner membrane giant body, A body coupling member coupled to an upper region of the central through hole formed along the axial direction of the cutting body; And It is coupled to the upper end of the body coupling member so as to be relatively rotatable relative to the cutting body when in contact with the maxillary sinus lining, the disk shape is coupled to the upper end of the body coupling member in the transverse direction, the upper surface is the maxillary sinus A maxillary sinus elevation drill tool comprising an inner membrane contact member in contact with the inner membrane. The method of claim 11, The outer surface of the body coupling member is provided with a pin groove rail formed in a predetermined depth along the circumferential direction, And a pin through hole formed in the cutting body so that the pin passes through the pin groove rail so that the end portion of the pin groove rail is positioned when the body coupling member and the inner layer contact member are coupled to each other. The method of claim 13, The upper outer circumferential edge of the inner membrane contact member is rounded to prevent damage to the upper lining of the maxillary sinus when the inner membrane contact member is in contact with one surface of the maxillary sinus lining. The method of claim 13, The inner membrane contact member is provided to protrude from the upper end of the cutting body, the diameter of the inner membrane contact member is provided with a maxillary sinus elevation drill tool, characterized in that smaller than the outer diameter of the cutting body. The method of claim 13, The maxillary sinus lining coarse drill, It is formed extending from the lower end of the cutting body, further comprising a connection body provided with a connection groove at the end to be connected to the handpiece for providing rotational force, Inside the connecting body and the inner membrane body, the drilling tool for maxillary sinus, characterized in that each through hole is formed in communication with each other along the axial direction to provide saline to the work site during the drilling of the alveolar bone. . The cutting body is provided in at least one region of the outer surface and the inner cutting portion for cutting at least one area of the inner wall of the alveolar bone forming a hole, and has a cross-sectional area smaller than the cross-sectional area of the cutting body with respect to the upper surface of the cutting body A drill for drilling having an inner membrane contact body provided to protrude upward and having an upper cutting portion for cutting the alveolar bone between the hole and the maxillary sinus lining; And A residual cutting portion is formed in at least one region of the outer surface of the alveolar bone where the maxillary sinus lining is exposed by the drilling drill to cut at least one region of the inner wall of the alveolar bone by rotation to form the hole. The cutting body is coupled to the upper end of the cutting body to be protruded compared to the upper end of the cutting body is the cutting body advances the inner portion of the alveolar bone and during cutting the maxillary sinus lining in the direction away from the alveolar bone during cutting A maxillary sinus elevation drill tool comprising a maxillary sinus lining coarse drill having a coarse body. The method of claim 18, Pressing a bone graft material between the alveolar bone and the maxillary sinus lining formed by the elevation of the maxillary sinus lining of the maxillary sinus lining drill, and pressurizing the bone graft material between the alveolar bone and the maxillary sinus lining The maxillary sinus elevation drill tool further comprising a mechanism.

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