CN110974450A

CN110974450A - Dental crown extension boning ball drill

Info

Publication number: CN110974450A
Application number: CN201911327893.XA
Authority: CN
Inventors: 路瑞芳; 胡文杰; 王安琪; 刘建
Original assignee: Peking University School of Stomatology
Current assignee: Peking University School of Stomatology
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-04-10

Abstract

The utility model provides a dentistry crown extension ball drill that removes bone, sets up annular boss portion through the upper portion at spherical drill point to with the lower terminal surface and the up end of annular boss portion form different scale district height lines that are used for removing bone volume and judge, can be favorable to periodontal clinician's operation, avoid the accidental injury to the tooth body tissue, thereby serve periodontal surgery patient better.

Description

Dental crown extension boning ball drill

Technical Field

The invention relates to a dental crown lengthening surgical instrument, in particular to a dental crown lengthening boning ball drill, wherein an annular boss part is arranged at the upper part of a ball drill point, and different scale area height lines for boning amount judgment are formed by the lower end surface and the upper end surface of the annular boss part, so that the dental crown lengthening boning ball drill is beneficial to the surgical operation of a periodontal clinician, avoids accidental injury to tooth tissues, and better serves periodontal surgery patients.

Background

Crown lengthening is a conventional oral procedure, generally classified as periodontal, aimed at improving the patient's aesthetics (gummy smile) or in preparation for restorative treatment. Currently, instruments for osteotomy and osteoplasty in the crown lengthening operation are single, and generally only different types of ball drills (different types of ball drills refer to a series of ball drill rods with ball drill needle heads with different sizes) are used for removing bones and trimming physiological bone shapes. The amount of bone removed typically needs to be examined in an intraoperative manner with the aid of a periodontal probe. The clinician is therefore required to frequently change between the drill and the periodontal probe. The conventional William scale periodontal probe is missing at 4mm (i.e. the scale is 1mm, 2mm, 3mm, 5mm, 7mm, 8mm, 9mm, 10mm), while the inventor, as a crown lengthening operator, considers that 4mm is a key point for judging whether the bone removal reaches the standard, and if the estimation is carried out only by the doctor's own clinical experience, the requirement of the modern surgery on accurate and fine operation is not met. In addition, the ball drill stem most commonly used in surgery has a ball-shaped drill point head, which is a sphere-like shape, and can cut all hard tissues and extremely easily damage tooth body/root tissues if not noticed during bone removal or bone form modification. Some people with poor vision (e.g., the mesial surfaces of the teeth) or those with unskilled operation are prone to accidental injury to the roots of the teeth. Even a skilled operator leaves a thin layer of alveolar bone near the root surface, and then manually scrapes off the remaining alveolar bone and flattens the root surface. The inventor realizes that if the bone removal amount judgment scale is arranged on the neck of the ball drill and the annular boss part is arranged between the head of the ball drill needle and the neck of the ball drill, the operation of a periodontal clinician can be facilitated, the accidental injury to tooth tissues can be avoided, and a periodontal surgery patient can be better served. In view of the above, the present inventors have completed the present invention.

Disclosure of Invention

Aiming at the defects or shortcomings in the prior art, the invention provides the dental crown extension boning ball drill, the annular boss part is arranged at the upper part of the ball drill point, and different scale area height lines for boning amount judgment are formed by the lower end surface and the upper end surface of the annular boss part, so that the surgical operation of a periodontal clinician can be facilitated, the accidental injury to tooth tissues can be avoided, and a periodontal surgery patient can be better served.

The technical scheme of the invention is as follows:

the utility model provides a dentistry crown extension boning ball drill, a serial communication port, including the ball drill drilling rod, the ball drill drilling rod is from bottom up for spherical drill point, annular boss portion and ball drill neck in proper order, the first scale zone height line of terminal surface for being used for bone volume judgement under the boss of annular boss portion, the boss up end of annular boss portion is for being used for removing the second scale zone height line that bone volume judged, annular boss portion has the smooth global that is used for bone protection, the terminal surface is for encircleing under the boss terminal surface annular limit of spherical drill point, terminal surface annular limit is terminal surface bone portion under the boss.

The top end of the ball drill rod is provided with a rod machine connecting port.

The rod machine connecting port is connected with a handheld dental drill which is a high-speed turbine mobile phone.

The outer periphery of the annular boss part surrounds the outer periphery of the spherical drill point, and the diameter difference between the two parts is 0.18-0.3 mm.

The height of the spherical drill point is the height of the lower end face of the boss of the annular boss part, and the height of the lower end face of the boss of the annular boss part is 0.4-1.2 mm by taking the bottom end of the spherical drill point as an initial point.

The height of the lower end face of the boss of the annular boss part is 0.5mm or 1 mm.

The height of the upper end surface of the lug boss of the annular lug boss part is 1.5-4.5 mm by taking the bottom end of the spherical drill point as a starting point.

The height of the upper end face of the boss of the annular boss part is 2mm or 4 mm.

The neck of the ball drill takes the upper end face of the lug boss of the annular lug boss part as a starting point, scale areas are arranged at intervals of 1mm, and the heights of all the scale areas take the bottom end of the ball drill point as a starting point.

The height of the highest scale zone of the neck of the ball drill is not less than 4mm, and different scale zones have different color marks.

The invention has the following technical effects: the invention discloses a dental crown lengthening boning ball drill, which is a surgical instrument for crown lengthening boning, which is made by the inventor according to years of clinical experience of the inventor and problems encountered in the clinic, and is more beneficial to the fine operation of a clinician in the aspects of measurement of scales, protection of a tooth root surface and adjacent surface boning, thereby better serving a patient. The invention is characterized in that the annular boss part is usually a one-stage boss, and can also be arranged into a multi-stage boss, and the outer peripheral surface of each stage of boss forms an independent scale area.

The invention has the following characteristics: 1. the head of the instrument is provided with the protection device, so that the accidental injury to the tooth tissue can be avoided, and the bone can be conveniently removed on the root surface by adopting a vertical bone removal mode. 2. The invention designs a bright scale design on the neck of the instrument, can guide clinical bone removal and better complete the operation. 3. The clinical operation is better carried out. According to different conditions, the bone removal ball drill with different neck length scales is designed, different scale areas can be marked by different colors, and the marks of the colors are designed to provide guidance for bone removal of different gum thicknesses, so that the bone removal ball drill is better served for clinic.

Drawings

FIG. 1 is a schematic view showing a first example of a dental crown extension osteotomy button embodying the present invention. The dashed bottom line in fig. 1 is a height starting line or reference line, and the right side is three scale lines, which respectively indicate the height line of the spherical drill point 9 (which is also the height of the lower end face of the boss of the annular boss portion 7, i.e., the height of the first scale zone is 1mm), the height line P2 of the upper end face of the boss of the annular boss portion 7 (also referred to as the height of the land or the height of the step, i.e., the height of the second scale zone is 2mm), and the height H3 of the third scale zone is 3mm, and the height H4 of the fourth scale zone of the ball drill neck 6 is 4 mm. Different scale areas can be marked by different colors, and the marks of the colors are designed to provide guidance for the bone removal amount of different gum thicknesses. The 4mm height is the missing height of the existing periodontal probe.

Fig. 2 is a bottom view of the drill ball of fig. 1 (the bottom view of fig. 1). In fig. 2, the outer peripheral diameter of the annular boss part 7 is 2.2mm, and the outer peripheral diameter of the spherical drill point 9 is 2.0mm, namely 0.2mm, namely the width of the annular edge 8 on the lower end surface of the boss is 0.1 mm.

FIG. 3 is a schematic structural view of a dental crown extension osteotomy ball drill embodying the present invention. In fig. 3, the height of the spherical drill point is 0.5mm (the height of the first scale area), the height line P2 of the upper end surface of the boss is 2mm (the height of the second scale area), the height line H3 of the third scale area is 3mm, and the height line H4 of the fourth scale area is 4 mm.

FIG. 4 is a schematic structural view of a third example of a dental crown extension boning ball drill embodying the present invention. In fig. 4, the height of the spherical drill point is 0.5mm (the height of the first scale zone), the height line P3 of the upper end surface of the boss is 3mm (the height of the second scale zone), and the height line H4 of the third scale zone is 4 mm.

FIG. 5 is a schematic view of a fourth embodiment of a dental crown extension osteotomy button embodying the present invention. In fig. 5, the height of the spherical drill point is 0.5mm (the height of the first scale area), and the height line P4 of the upper end surface of the boss is 4mm (the height of the second scale area).

FIG. 6 is a schematic structural diagram of a dental crown extension boning ball drill according to a fifth embodiment of the present invention. In fig. 6, the height of the spherical drill point is 1mm (the height of the first scale zone), the height line P3 of the upper end surface of the boss is 3mm (the height of the second scale zone), and the height line H4 of the third scale zone is 4 mm.

FIG. 7 is a schematic structural diagram of a dental crown extension osteotomy ball drill embodying the present invention. In fig. 7, the height of the spherical drill point is 1mm (the height of the first scale area), and the height line P4 of the upper end surface of the boss is 4mm (the height of the second scale area).

Fig. 8 is another bottom view of the ball drill. In fig. 8, the diameter of the outer periphery of the annular boss part 7 is 1.2mm, and the diameter of the outer periphery of the spherical drill point 9 is 1.0mm, namely 0.2mm, namely the width of the annular edge 8 on the lower end surface of the boss is 0.1 mm.

Fig. 9 is a first example of the operation of the present invention in a dental crown extension osteotomy procedure with a hand held dental drill 1 (e.g., a high speed turbine handpiece).

Fig. 10 is a second example of the operation of the present invention in a dental crown extension osteotomy procedure with a hand held dental drill 1 (e.g., a high speed turbine handpiece).

The reference numbers are listed below: 1-handheld dental drills (e.g. high speed turbine handpiece); 2-dental crown; 3-gingiva; 4-root surface of tooth; 5-ball drilling the drill rod; 6-the neck of the ball drill (a bone removal amount judgment scale area can be newly added on the upper end surface of the boss); 7-annular boss part (with boss lower end face deboning part, but smooth peripheral surface for deboning protection to avoid accidental injury of tooth root 12, improving operation accuracy and precision on tooth root surface 4); 8-the annular edge of the lower end face of the boss or the vertical bone removing part (or the bone removing part of the lower end face of the boss); 9-a spherical drill point; 10-rod machine connecting port; 11-alveolar bone; 12-the root of a tooth; p2-height line of upper end surface of boss with height of 2 mm; p3-height line of upper end surface of boss with height of 3 mm; p4-height line of upper end surface of boss with height of 4 mm; h3-height line of scale zone with height of 3 mm; h4-graduated zone height lines of 4mm height.

Detailed Description

The invention is described below with reference to the accompanying drawings (fig. 1-10).

Referring to fig. 1 to 10, a dental crown extension boning ball drill includes a ball drill rod 5, the ball drill rod 5 includes a ball drill 9, an annular boss portion 7 and a ball drill neck portion 6 from the bottom end to the top in sequence, a boss lower end face of the annular boss portion 7 is a first scale zone height line (e.g., 0.5mm, 1mm, etc.) for determining boning amount, a boss upper end face of the annular boss portion 7 is a second scale zone height line (e.g., a boss upper end face height line P2 of 2mm, a boss upper end face height line P3 of 3mm, a boss upper end face height line P4 of 4mm, etc.) for determining boning amount, the annular boss portion 7 has a smooth peripheral face for boning protection, the boss lower end face is a boss lower end face annular edge 8 surrounding the ball drill 9, and the boss lower end face annular edge 8 is a boss lower end face boning portion. The top end of the ball drill rod 5 is provided with a rod machine connecting port 10. The rod machine connecting port 10 is connected with a handheld dental drill which is a high-speed turbine mobile phone. The outer periphery of the annular boss part 7 surrounds the outer periphery of the spherical drill point 9, and the diameter difference between the two parts is 0.18-0.3 mm. The height of the spherical drill point 9 is the height of the lower end face of the boss of the annular boss part 7, and the height of the lower end face of the boss of the annular boss part 7 is 0.4-1.2 mm by taking the bottom end of the spherical drill point 9 as an initial point. The height of the lower end face of the boss of the annular boss part 7 is 0.5mm or 1 mm. The height of the upper end surface of the lug boss of the annular lug boss part 7 is 1.5 mm-4.5 mm by taking the bottom end of the spherical drill point 9 as a starting point. The height of the upper end surface of the lug boss of the annular lug boss part 7 is 2mm, 3mm or 4 mm. The ball drill neck portion 6 is provided with scale areas at intervals of 1mm with the upper end face of the boss of the annular boss portion 7 as a starting point, and the heights of all the scale areas (for example, a scale area height line H3 with a height of 3mm, a scale area height line H4 with a height of 4mm, etc.) are all from the bottom end of the ball drill point 9 as a starting point. The height of the highest scale zone of the neck part 6 of the ball drill is not less than 4mm, different scale zones have different color marks, and the marks of colors are designed to provide guidance for bone removal of different gum thicknesses.

The series of drill products shown in fig. 1 to 8 is a set of surgical bone removal devices for crown lengthening which is more suitable for clinical operation, and is convenient for a clinician to observe the bone removal amount while removing the bone, and select the devices with different scales according to different clinical situations. This remove neck design scale of bone apparatus has boss mark respectively in the distance work point department 2mm commonly used, 3mm and 4mm punishment, and the operator can observe the scale simultaneously when removing the bone, and the volume of bone is removed in the accurate judgement, the operation operating time that constantly changes the apparatus and increase in the reduction operation. The invention improves the bone removal ball drill head part, namely, the ball-shaped drill point head part is widened by 0.5mm (or the working tip of the head part is narrowed by 0.5mm) to the scale position, and is changed into a wheel-shaped bone removal (the periphery is smooth, and the bone removal is only carried out in a vertical direction), and the edge can also be provided with a protective ring-shaped head part. Therefore, the possibility of accidentally injuring the tooth root in the operation is greatly reduced, and the accuracy and precision of the operation are improved.

The design of the annular boss part enables the dental crown extension boning ball drill to be particularly suitable for serving as a boning instrument for the adjacent surface of the posterior tooth. The head of the instrument has a 0.5-2mm protruding design, and only the head has a cutting function in the same direction, so that the instrument is used for finely removing bones and avoiding damaging adjacent tissues. When the bone removing part on the lower end face of the lug boss of the annular lug boss part removes bones on the adjacent face of the back teeth, the structure is more favorable for protecting adjacent tissues at the position where the sight line is not easy to reach, and the difficulty in bone removing operation is solved.

The neck of the instrument has different scale designs at different depths, and the required bone removal amount can be achieved in one step according to different requirements, so that the operation of a clinician is guided well. For example, simply extending the clinical crown, a thick gum biotype with a boss at 3mm, a thin gum biotype with a boss at 2mm, etc. For the case where it is desired to expose the broken end: the distance between the working tip and the working tip is 3mm or 4mm, so that a clinician can conveniently select the dental prosthesis according to the shape of the broken end of the tooth body, the anatomical shapes of the bone, the root bifurcation and the like. The invention is characterized in that the annular boss part is usually a one-stage boss, and can also be arranged into a multi-stage boss, and the outer peripheral surface of each stage of boss forms an independent scale area. Different scale areas have different color marks, and the marks with colors are designed to provide guidance for bone removal amount of different gum thicknesses.

It is pointed out here that the above description is helpful for the person skilled in the art to understand the invention, but does not limit the scope of protection of the invention. Any such equivalents, modifications and/or omissions as may be made without departing from the spirit and scope of the invention may be resorted to.

Claims

1. The utility model provides a dentistry crown extension boning ball drill, a serial communication port, including the ball drill drilling rod, the ball drill drilling rod is from bottom up for spherical drill point, annular boss portion and ball drill neck in proper order, the first scale zone height line of terminal surface for being used for bone volume judgement under the boss of annular boss portion, the boss up end of annular boss portion is for being used for removing the second scale zone height line that bone volume judged, annular boss portion has the smooth global that is used for bone protection, the terminal surface is for encircleing under the boss terminal surface annular limit of spherical drill point, terminal surface annular limit is terminal surface bone portion under the boss.

2. The dental crown extension osteotomy ball drill of claim 1, wherein a top end of said ball drill stem has a stem machine interface.

3. The dental crown extension boney burr as recited in claim 2, wherein said stem machine interface is connected to a hand held dental drill, said hand held dental drill being a high speed turbine handpiece.

4. The dental crown extension deboning ball drill as recited in claim 1, wherein said annular land portion has an outer periphery that surrounds an outer periphery of said ball drill point with a diameter difference of 0.18mm to 0.3 mm.

5. The dental crown extension deboning ball drill according to claim 1, wherein the height of the ball drill is the boss lower end surface height of the annular boss part, and the boss lower end surface height of the annular boss part is 0.4-1.2 mm from the bottom end of the ball drill as a starting point.

6. The dental crown extension boning ball drill of claim 1, wherein the height of the boss lower end surface of the annular boss portion is 0.5mm or 1 mm.

7. The dental crown extension deboning ball drill according to claim 1, wherein the height of the boss upper end surface of the annular boss part is 1.5mm to 4.5mm from the bottom end of the ball drill point as a starting point.

8. The dental crown extension boning ball drill of claim 1, wherein the boss upper end surface height of the annular boss portion is 2mm or 4 mm.

9. The dental crown extension boning ball drill according to claim 1, wherein the ball drill neck has scale zones arranged at intervals of 1mm starting from the upper end surface of the boss of the annular boss portion, and the heights of all the scale zones start from the bottom end of the spherical drill point.

10. The dental crown extension osteotomy bulb drill of claim 9, wherein a highest graduated area of said bulb drill neck has a height of no less than 4mm, different graduated areas having different color designations.