KR101723967B1 - Dental drill - Google Patents

Abstract

A dental planarization drill is disclosed. A dental flattening drill according to an embodiment of the present invention includes a drill housing; And a planarizing drill unit coupled to the drill housing and rotated together with the drill housing, the planarizing drill unit having a planarizing operation blade for performing a planarization operation on an alignment position of the alveolar bone to be inserted with the fixture.

Description

Dental flattening drill {Dental drill}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental flattening drill, and more particularly, to a dental flattening drill capable of easily and efficiently proceeding to planarize the alveolar bone with respect to the position of fixture placement.

Implant refers to a replacement that restores when the original tissue is lost, but in dentists it refers to a series of procedures for implanting an artificial tooth.

In other words, the implant implants a root fixture made of titanium or the like, which does not have a rejection reaction to the body, so as to replace the lost root (roots), the teeth are inserted into the alveolar bone, It is a series of dental procedures that restore tooth function.

In general prostheses or dentures, the surrounding teeth and bones are damaged over time, but the implants do not injure the surrounding dental tissue, and they have the same function and shape as the natural teeth, but do not have cavities. Therefore, they can be used semi-permanently.

In the artificial tooth procedure (also referred to as an implant or an implant procedure), a screw hole is made in an alveolar bone at a position where a fixture is to be placed using a drill, and a fixture is placed in a screw hole, After making the artificial root, attach the abutment to the fixture, and then complete the abutment by applying a crown as an artificial tooth, which is the final restoration.

These implants improve the function of the dentures in single-tooth restorations, as well as in partial and total toothless patients, improve the esthetic aspects of dental prosthesis restoration, and distribute excessive stresses on the surrounding supporting bone tissue And helps to stabilize the dentition.

On the other hand, as described above, in order for the fixture to be placed, a screw hole should be made after perforating the alveolar bone using a drill.

A brief description of such drilling operations is given below. Of course, the drilling operation below is illustrative, and it goes without saying that there may be various types of drilling operations.

First, the placement position of the fixture is determined on the surface of the alveolar bone using a round drill as an initial drill.

Next, the end of the alveolar bone at the site where the tooth is lost is slightly opened, and a guide drill is attached to a predetermined mechanism to supply water to the alveolar bone, and holes having a predetermined depth are punctured.

Then, the hole is expanded while supplying water to the alveolar bone by replacing with the first drill, and then the pilot drill is replaced to extend the end of the hole while supplying water to the alveolar bone.

Subsequently, the lower end of the hole is expanded while supplying water to the alveolar bone by replacing with a final drill.

Subsequently, a tap drill is used to supply water to the alveolar bone, and a thread is formed in the hole, thereby completing a screw hole for placing the fixture.

On the other hand, the above-described drilling operation, that is, the drilling of the alveolar bone to make a screw hole can be generally applied to patients having a normal oral structure, particularly a normal ridge of an alveolar bone.

However, when the alveolar bone is not general, for example, when the alveolar bone is excessively narrow, that is, when the alveolar bone forms a thin ridge, it is difficult to apply the above method as it is.

In other words, since the end portion of the syringe is excessively narrow, the drilling operation must be performed on the slope. When the drilling operation is performed on the slope, the slipping occurs during the drilling operation. Therefore, the smooth drilling operation can not proceed, It is not easy to form a screw hole in the screw hole.

Therefore, in the case of a new ridge whose alveolar bone is not common, a planarization process for planarizing the surface of the fixture relative to the placement position should be preceded, and a planarization surface should be formed and the screw hole described above should be formed on the planarization surface.

In order to planarize the end portion of the new ridge, a suitable drill should be used. However, considering that the dental flattening drill is not yet used to facilitate the planarization of the new ridge easily and efficiently , And technology development is needed.

Korea Patent Office Application No. 10-2011-0095846

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a dental flattening drill which can easily and efficiently perform the planarization work of the alveolar bone with respect to the placement position of the fixture.

According to an aspect of the present invention, there is provided a drill housing comprising: a drill housing; And a planarizing drill unit coupled to the drill housing and rotated together with the drill housing, the planarizing drill unit having a planarizing operation blade for performing a planarization operation on an alignment position of the alveolar bone to be inserted with the fixture, Drills can be provided.

Wherein the planarization drill unit comprises: a unit shaft having the planarizing working edge formed at one end thereof; And a locking boss provided at one side of the unit shaft and hooked to the drill housing.

The edge of the drill housing may be formed with a blade for positioning the alveolar bone to be positioned at the alveolar bone so that the flattening blade can be rotated at a predetermined position during the planarization.

The seat blade can be continuously formed along the circumferential direction of the distal end of the drill housing.

The planarizing working blade may be disposed inwardly of the drill housing rather than the positioning blade.

The drill housing may have an inner pipe shape to allow the planarizing drill unit to pass through.

An alveolar bone crushed powder storage space may be provided inside the drill housing to store alveolar crushed powder generated while the alveolar bone is broken.

Wherein the drill housing comprises: a housing body formed at the end portion of the positioning blade; And a housing flange coupled to the housing body and extending radially outwardly of the housing body.

The drill housing may further include a boss jaw provided at a boundary region between the housing body and the housing flange and to which a latching boss of the flattening drill unit is hooked.

The outer wall of the locking boss and the inner wall of the housing flange, which contact each other so that the flattening drill unit does not rotate arbitrarily in the drill housing, may have a non-circular shape.

The planarizing drill unit may further include a detachable coupling unit provided on the drill housing for detachably coupling the planarizing drill unit to the drill housing.

Wherein the detachable coupling unit comprises: a ball plunger provided at one of the planarizing drill unit and the drill housing; And a ball receiving portion provided on the other of the planarizing drill unit and the drill housing, and in which the ball plunger is received.

The ball plunger may protrude from one side of the outer wall of the planarizing drill unit, and the ball receiving part may be recessed into the inner wall of the drill housing.

A guide groove for guiding the ball plunger may be further formed on the inner wall of the drill housing in which the ball receiving portion is formed.

The ball receiving portion may be arranged in a plurality of regularly along the inner wall circumferential direction of the drill housing.

The alveolar bone can be a thin ridge whose end is relatively narrow.

According to the present invention, it is possible to easily and efficiently perform the planarization work of the alveolar bone with respect to the placement position of the fixture.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view of a renal alveolar bone.
Fig. 2 is a view showing a state in which the flattening operation is performed on the flange of Fig. 1. Fig.
3 is a view illustrating a process of performing a planarization process using a dental flattening drill according to an embodiment of the present invention.
Fig. 4 is an enlarged view of the dental flattening drill shown in Fig. 3;
Figures 5 and 6 are perspective views of the dental planarization drill, respectively, from a different angle.
Figs. 7 and 8 are perspective views showing the drill housing at different angles, respectively. Fig.
Figs. 9 and 10 are perspective views showing the planarizing drill unit at different angles, respectively.
Fig. 11 is a longitudinal sectional view of Fig. 4; Fig.
12 is a cross-sectional view of a dental flattening drill according to another embodiment of the present invention.
13 is a cross-sectional view of a dental flattening drill according to another embodiment of the present invention.

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

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

FIG. 2 is a plan view showing a state in which a planarization operation is performed on the flange of FIG. 1. FIG. 3 is a plan view showing a planarization operation of a dental planarization drill according to an embodiment of the present invention. FIG.

As described in detail above, in order to place a fixture on the alveolar bone for implant treatment, first the alveolar bone is drilled and a screw hole is formed in the drilled hole.

At this time, in the case of a general patient having a normal ridge at an end of the alveolar bone, a screw hole may be formed in the alveolar bone without preparation.

However, when the alveolar bone is not general, for example, as shown in Fig. 1, when the end of the alveolar bone is excessively narrow, that is, when the alveolar bone forms a thin ridge, it is difficult to apply the above method as it is.

In this case, as shown in FIG. 2, a flat surface is formed at the end of the new ridge by flattening the end portion of the new ridge, and then a drilling operation is performed through this to make a screw hole into which the fixture is to be inserted.

However, in the prior art, since a drill for flattening a new ridge has not been disclosed, the present embodiment discloses a dental flattening drill 100 having a structure as shown in Figs. 3 to 11.

The dental flattening drill 100 according to an embodiment of the present invention can be used to planarize the end of a sling after being disposed at the end of the sling as in Fig. 3, wherein the end of the sling is flattened A screw hole can be formed through the drilling operation on the flattening surface.

5 is a perspective view of the dental planarization drill shown in Fig. 3, Figs. 5 and 6 are perspective views showing the dental planarization drill at a different angle, and Figs. 7 and 8, respectively, And FIGS. 9 and 10 are respectively perspective views showing the planarizing drill unit from another angle, and FIG. 11 is a longitudinal sectional view of FIG. 4.

Referring to these figures, the dental flattening drill 100 according to the present embodiment can easily and efficiently perform the planarization work of the alveolar bone with respect to the placement position of the fixture, , I.e., a drill housing 110 and a planarization drill unit 130.

The drill housing 110 and the planarizing drill unit 130 are disposed at the ends of the new ridge in a state where they are assembled together and can be planarized while being rotated by a separate drilling machine (not shown).

Referring to the detailed structure of the dental flattening drill 100 according to the present embodiment, the drill housing 110 first forms a place where the flattening drill unit 130 is assembled, i.e., engaged.

11, since the flattening drill unit 130 is coupled (assembled) to the drill housing 110 while being partially inserted into the drill housing 110, the drill housing 110 is fixed to the inside of the drill housing 110, May have an empty pipe shape.

The drill housing 110 includes a housing body 113 and a housing flange 114 connected to the housing body 113 and extending radially outwardly of the housing body 113 and a boss jaw 115 .

A positioning portion 111 is formed at the tip of the housing body 113, which is an empty pipe structure.

3, when the flattening operation blade 131 provided in the flattening drill unit 130 is rotated at a predetermined position to perform a planarization operation, That is, one side of the new bridge.

In other words, the positioning blade portion 111 serves to hold the flattening operation blade 131 provided in the flattening drill unit 130 so as not to be displaced. Of course, since the seat positioning blade portion 111 also takes the form of a drill bit, a certain amount of drilling operation for planarization can proceed.

The seat positioning blade portion 111 is formed continuously along the distal circumferential direction of the drill housing 110. Therefore, the flatness of the sliver due to the action of the flattening operation blade 131 is reduced, and the flattening operation can be stably performed.

The inside of the housing body 113 is provided with a alveolar bone crushed powder storage space 112 (see FIG. 11) in which alveolar bone crushed powder generated while the alveolar bone is broken is stored.

3, the alveolar bone crushing powder (or some lumps) generated at this time is transferred to the inner side of the housing body 113, to the inside of the housing body 113, to the planarization drill unit 130 Can be gathered in space. The alveolar crushed powder thus collected can be used for bone induction regeneration (GBR).

For reference, GBR refers to a procedure that uses a barrier to prevent bone formation (alveolar bone) when there is not a sufficient amount of bone around the fixture (alveolar bone) However, it is known that if you use your own things at this time, the procedure can be carried out more easily.

The housing flange 114 is connected to the housing body 113 and extends radially outward beyond the housing body 113.

The inner wall of the housing flange 114 is provided with a ball receiving portion 152, which is a constitution of the detachable coupling portion 150. This will be described later.

The boss stopper 115 is provided at a boundary region between the housing body 113 and the housing flange 114 and forms a place where the latching boss 133 of the flattening drill unit 130 is hooked.

When the flattening drill unit 130 is inserted into the drill housing 110 to engage the flattening drill unit 130 with the drill housing 110, the latching boss 133 of the flattening drill unit 130 is hooked The planarizing drill unit 130 can be inserted into the drill housing 110 only up to the boss stopper 115 and the planarizing drill unit 130 can be coupled to the drill housing 110 in this state.

Next, the planarization drill unit 130 is a structure that is coupled to the drill housing 110 and rotated together with the drill housing 110.

The planarization drill unit 130 includes a unit shaft 132 and a stop boss 133 which is provided on one side of the unit shaft 132 and is held by the boss stopper 115 of the drill housing 110 .

The unit shaft 132 is a long rod-type structure, and at one end thereof, a planarizing working edge 131 is provided.

The planarizing working edge 131 is a substantial drill blade for carrying out a planarizing operation with respect to the positioning position of the alveolar bone to which the fixture is to be placed.

As described above, when the positioning portion 111 of the drill housing 110 is positioned for planarization, the end of the flange can be flattened by the action of the planarizing blade 131 as shown in FIG.

11, the flattening operation blade 131 provided in the planarizing drill unit 130 is inserted into the drill housing 110 from the drill housing 110, Can be spaced apart.

A mechanism mounting portion 134 is provided at the other end of the unit shaft 132. The mechanism mounting portion 134 may be a place used when mounting the dental flattening drill 100 according to the present embodiment in a separate drill.

The latching boss 133 is a portion held by the boss latching jaw 115 of the drill housing 110. The flattening drill unit 130 can be inserted into the drill housing 110 only until the latching boss 133 is caught by the boss latching jaw 115 as described above.

At this time, the outer wall of the locking boss 133 and the inner wall of the housing flange 114, which are in contact with each other so that the flattening drill unit 130 does not rotate arbitrarily in the drill housing 110, may have a non-circular shape.

In this embodiment, the latching boss 133 is shaped like a hexagonal nut, and the inner wall of the housing flange 114 is made to have six faces corresponding to a hexagonal nut. Therefore, when the latching boss 133 is inserted into the inner wall of the housing flange 114, the latching boss 133 is not rotated arbitrarily.

Of course, since the latching boss 133 does not necessarily have the same hexagonal nut shape, the scope of the present invention need not be limited to the shape of the figure.

On the other hand, a detachable coupling portion 150 is further provided so that the flattening drill unit 130 can be detachably coupled to the drill housing 110.

In other words, the detachable coupling unit 150 is provided in the planarizing drill unit 130 and the drill housing 110 to detachably couple the planarizing drill unit 130 to the drill housing 110.

In this embodiment, the detachable coupling portion 150 is provided on the engagement boss 133 of the flattening drill unit 130 and the housing flange 114 of the drill housing 110. However, there is no relation even if it is provided at another position.

The detachable coupling portion 150 includes a ball plunger 151 provided on one of the engagement boss 133 of the planarization drill unit 130 and the housing flange 114 of the drill housing 110, And a ball receiving portion 152 which is provided on the other of the engagement boss 133 of the boss 133 and the housing flange 114 of the drill housing 110 and in which the ball plunger 151 is received.

The ball plunger 151 protrudes from the outer wall of the engagement boss 133 of the flattening drill unit 130 and the ball receiving portion 152 is formed on the inner wall of the housing flange 114 of the drill housing 110. [ As shown in FIG.

However, the opposite is also possible. The ball plunger 151 is provided so as to protrude from the inner wall of the housing flange 114 of the drill housing 110 and the ball receiving portion 152 is embedded in the outer wall of the engagement boss 133 of the planarizing drill unit 130 It is fully possible to be provided.

At this time, if only one ball plunger 151 and one ball receiving portion 152 are provided, that is enough.

However, in the present embodiment, a plurality of ball receiving portions 152 are regularly arranged along the inner wall circumferential direction of the housing flange 114 of the drill housing 110.

When the ball receiving portions 152 are provided in a number as shown in this embodiment, there is an advantage that the operation of assembling the flattening drill unit 130 and the drill housing 110 can be facilitated.

A guide groove 153 for guiding the ball plunger 151 is formed on the inner wall of the drill housing 110 where the ball receiving portion 152 is formed. When the flattening drill unit 130 and the drill housing 110 are engaged with each other, the ball plunger 151 may be guided along one of the guide grooves 153 and be received in the ball receiving portion 152.

3, when the drill housing 110 and the planarizing drill unit 130 are assembled together to form the dental flattening drill 100, the edge of the drill housing 110 for positioning the drill housing 110 The end of the thread ridge can be flattened by rotating the dental flattening drill 100 as shown in Fig. 2, and in this state, a screw hole .

According to the present embodiment having such a structure and function, it is possible to easily and efficiently perform the planarization work of the alveolar bone with respect to the placement position of the fixture.

12 is a cross-sectional view of a dental flattening drill according to another embodiment of the present invention.

Referring to this drawing, the dental planarizing drill 200 according to the present embodiment may also include a two-part, i.e., a drill housing 210 and a planarizing drill unit 130 capable of mutually disassembling and assembling. Most of the structure of the dental flattening drill 200 according to the present embodiment is the same as the above-described embodiment.

However, in the case of this embodiment, a protrusion 216 is further provided on the inner wall of the drill housing 210 of the drill housing 210.

The protruding portion 216 may have a length not touching the unit shaft 132 of the planarization drill unit 130. The protruded portion 216 prevents the alveolar bone crushed powder stored in the alveolar bone crushed powder storage space 112 There is an advantage that it can be kept well without falling out.

13 is a cross-sectional view of a dental flattening drill according to another embodiment of the present invention.

Referring to this figure, the dental flattening drill 300 according to the present embodiment may also include a two-part, i.e., a drill housing 310 and a planarizing drill unit 130 capable of mutually disassembling and assembling. Most of the structure of the dental flattening drill 300 according to the present embodiment is the same as the above-described embodiment.

However, in the case of this embodiment, the drill housing 310 has the inner wall of the drill housing 310 further provided with the uneven pattern portion 310a.

Since the irregular pattern portion 310a has a surface roughness that is more uniform than the smooth surface, it may be advantageous for the alveolar bone crushed powder stored in the alveolar bone crushed powder storage space 112 to be well retained without being dislodged.

Even if the embodiment of FIGS. 12 and 13 is applied, the planarization work of the alveolar bone with respect to the placement position of the fixture can be easily and efficiently performed.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It is therefore intended that such modifications or alterations be within the scope of the claims appended hereto.

100: Dental flattening drill 110: Drill housing
111: Placement blade part 112: Alveolar bone crushed powder storage space part
113: housing body 114: housing flange
115: Boss jaw 130: Flattening drill unit
131: planarization working blade 132: unit shaft
133: latching boss 134:
150: detachable coupling portion 151: ball plunger
152: ball receiving portion 153: guide groove

Claims (16)

Drill housing; And
And a planarizing drill unit coupled to the drill housing and rotated together with the drill housing, the planarizing drill unit including a planarizing operation blade for performing a planarization operation on an alignment position of the alveolar bone to be inserted with the fixture,
The planarizing drill unit includes:
A unit shaft having the planarizing working edge formed at one end thereof; And
And a locking boss provided at one side of the unit shaft and hooked to the drill housing. delete The method according to claim 1,
Wherein the edge of the drill housing is formed with a blade for positioning on the alveolar bone so that the flattening blade can be rotated in a predetermined position during the flattening operation. The method of claim 3,
Wherein the positioning blade portion is continuously formed along the circumferential direction of the distal end of the drill housing. The method of claim 3,
Wherein the planarizing working blade is spaced apart from the seat-forming blade inwardly of the drill housing. The method according to claim 1,
Wherein the drill housing has an interior hollow pipe shape to allow the planarizing drill unit to pass therethrough. The method according to claim 1,
Wherein the alveolar bone crushing powder storing space is provided inside the drill housing to store the alveolar bone crushing powder generated by breaking the alveolar bone. The method of claim 3,
The drill housing includes:
A housing body in which the seatback blade is formed at an end thereof; And
And a housing flange coupled to the housing body and extending radially outwardly of the housing body. 9. The method of claim 8,
The drill housing includes:
Further comprising a bossing jaw provided at a boundary region between the housing body and the housing flange and having a latching boss of the flattening drill unit hooked thereto. 9. The method of claim 8,
Wherein the outer wall of the locking boss and the inner wall of the housing flange, which contact each other so that the planarizing drill unit does not rotate arbitrarily in the drill housing, have a non-circular shape. The method according to claim 1,
Further comprising: a planarizing drill unit; and a detachable coupling unit provided on the drill housing for detachably coupling the planarizing drill unit to the drill housing. 12. The method of claim 11,
Wherein the detachable-
A ball plunger provided on one of the planarizing drill unit and the drill housing; And
And a ball receiving portion provided on the other one of the planarizing drill unit and the drill housing, the ball receiving portion receiving the ball plunger. 13. The method of claim 12,
Wherein the ball plunger is provided to protrude from an outer wall of one side of the planarizing drill unit, and the ball receiving portion is formed to be recessed in the inner wall of the drill housing. 13. The method of claim 12,
And a guide groove for guiding the ball plunger is further formed on an inner wall of the drill housing in which the ball receiving portion is formed. 14. The method of claim 13,
And a plurality of the ball receiving portions are regularly arranged along the inner wall circumferential direction of the drill housing. The method according to claim 1,
Wherein the alveolar bone is a thin ridge whose end is relatively narrow.

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