CN109925085B - Vertical clearance measurement assembly for oral implantation - Google Patents
Vertical clearance measurement assembly for oral implantation Download PDFInfo
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- CN109925085B CN109925085B CN201910340109.2A CN201910340109A CN109925085B CN 109925085 B CN109925085 B CN 109925085B CN 201910340109 A CN201910340109 A CN 201910340109A CN 109925085 B CN109925085 B CN 109925085B
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- 238000005259 measurement Methods 0.000 title claims abstract description 28
- 238000002513 implantation Methods 0.000 title claims description 17
- 239000007943 implant Substances 0.000 claims abstract description 66
- 238000007906 compression Methods 0.000 claims abstract description 60
- 230000006835 compression Effects 0.000 claims abstract description 59
- 239000011159 matrix material Substances 0.000 claims abstract description 52
- 239000004053 dental implant Substances 0.000 claims abstract description 6
- 230000004323 axial length Effects 0.000 claims description 27
- 238000003825 pressing Methods 0.000 claims description 20
- 230000000149 penetrating effect Effects 0.000 claims description 12
- 230000008439 repair process Effects 0.000 abstract description 29
- 238000000034 method Methods 0.000 description 11
- 230000014759 maintenance of location Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000011282 treatment Methods 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 210000000214 mouth Anatomy 0.000 description 4
- 229910052573 porcelain Inorganic materials 0.000 description 4
- 238000007408 cone-beam computed tomography Methods 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000011269 treatment regimen Methods 0.000 description 2
- 206010041290 Soft tissue inflammation Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000011360 adjunctive therapy Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004763 bicuspid Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010883 osseointegration Methods 0.000 description 1
- 201000001245 periodontitis Diseases 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention discloses an oral planting vertical clearance measurement assembly, which comprises a cylindrical matrix, a positioning sleeve, a compression spring and a measurement column which are coaxially arranged; the bottom open end of the cylindrical matrix is communicated and fixed with the top open end of the positioning sleeve, and the positioning sleeve is used for being embedded into a cavity at the top of the implant; the compression spring is accommodated in a cavity formed by the cylindrical base body and the positioning sleeve; the bottom of the measuring column is contacted with the top end of the compression spring after the top open end of the cylindrical matrix stretches into the bottom end of the compression spring, the bottom end of the compression spring is contacted with the inner bottom of the positioning sleeve, and a first scale is axially arranged on the outer wall of the measuring column. After the dental implant is implanted in the operation, the vertical repair distance is conveniently measured, the structure is simple, the cost is low, the rapid and accurate measurement is convenient, and the later normal repair is guaranteed.
Description
Technical Field
The invention relates to the technical field of oral or dental hygiene devices, in particular to an oral implant vertical clearance measuring assembly.
Background
The implant is favored by the patients suffering from the missing teeth because of the characteristics of no damage to the natural teeth, high comfort, good beautiful effect and the like, and is also one of the important means for repairing the missing teeth at present. The most commonly used implant at present consists of two parts, including an implant located in the jawbone and an upper restoration located in the mouth. The teeth of the back teeth (premolars and molar teeth) in the oral cavity are frequently lost due to the development of periodontitis and decayed teeth, and in clinical practice, many patients cannot repair the lost teeth in time after the teeth are lost, so that the extension of the teeth of the jaw is caused, the vertical distance of the back teeth is reduced, and the scheme design of implantation repair is influenced. The vertical restoration distance is the distance between the implant and the jaw teeth after being implanted into a bone plane, and comprises the gingival penetration height, the abutment height and the thickness of the restoration dental crown. In order to ensure enough bonding strength, the height of the abutment is at least 4mm, meanwhile, the currently adopted implantation system generally has a gum penetrating height of at least 1mm, the thickness of the dental crown depends on the material of the dental crown, the porcelain crown is at least 2mm, and the full porcelain crown is at least 0.7mm. It is generally recommended that the vertical repair distance be 4+1+2=7 mm.
When the vertical repair distance of the implant site of the patient is insufficient, two general solutions exist at present: is matched with orthodontic auxiliary treatment and deep-buried implant. However, the current orthodontic auxiliary treatment has the conditions of required implantation of implant nail anchorage, high cost and long treatment period, and many patients are unwilling to accept the orthodontic auxiliary treatment. In clinical practice, the distance between a bone plane and the jaw teeth is measured through CBCT, and the situation that the distance is in a critical value of 6-8mm often exists, and although the measurement of CBCT is more accurate, a doctor is in the free hand implantation operation (without accurate guidance of an operation guide plate), the three-dimensional position of an implant after operation is not completely positioned at an assumed position, and the vertical repair distance is finally insufficient due to the deviation of the vertical direction, the near-far direction and the cheek-tongue direction. If the problem is ignored after operation, after entering a restoration procedure, the height of the normal pair of teeth is often required to be adjusted due to the defect of the vertical restoration distance, so that the normal tooth anatomical structure is lost, and the sensitivity to the teeth is possibly caused; or forced to cause the patient to receive orthodontic adjunctive therapy with high expense and long treatment period; a serious shortage of vertical repair distance will lead to failure of the planting repair.
Although CBCT is used for evaluating the vertical repair distance before operation, doctors are very necessary to actually measure the vertical repair distance after the implant is implanted in the operation, and the implant can be properly penetrated further by 2-3mm due to the insufficient vertical repair distance, or the doctor can communicate with a patient in time after operation with an orthodontic scheme, so that the success of implantation repair is further ensured. The measured vertical repair distance for implantation can be used to guide the retention pattern of the later prosthesis and the subsequent treatment regimen: (1) planting vertical repair distance >8mm: superstructure adhesive/screw retention; (2) the vertical repair distance for planting is 6-8 mm: the upper structure preferably selects screw retention; (3) planting vertical repair distance <6mm: the implant is not suitable for implant repair, deep implant implantation, orthodontic auxiliary treatment and even grinding of jaw teeth.
The implant osseointegration generally needs 3-6 months to reach a stable state, is suitable for healing a base station, a personalized base station, a temporary crown and other shaped gingival cuffs to reach better aesthetic requirements, and particularly has close correlation with aesthetic restoration in the gingival biology (thin gingival biology, medium and thick gingival biology) of an anterior tooth area; the method has the advantages that the method guides the selection of the implantation repair retention mode at the gum penetrating height, and in the case of large gum penetrating height, the direct intraoral bonding method is adopted to easily cause adhesive residues, so that soft tissue inflammation and bone absorption around an implant are caused; the measuring assembly can be used for measuring the thickness of gums and the height of passing gums, guiding doctors to select a proper retention mode (screw/direct bonding in the mouth/indirect bonding outside the mouth), and guiding the selection of subsequent abutment fittings with different heights of passing gums.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: in the prior art, after the dental implant is implanted in the operation, the vertical repair distance cannot be measured actually, the later repair difficulty is increased, and even the implant repair failure can be caused. The present invention provides an oral implant vertical clearance measurement assembly that solves the above-mentioned problems.
The invention is realized by the following technical scheme:
a vertical clearance measuring component for oral implantation comprises a cylindrical base body, a positioning sleeve, a compression spring and a measuring column which are coaxially arranged; the bottom open end of the cylindrical matrix is communicated and fixed with the top open end of the positioning sleeve, and the positioning sleeve is used for being embedded into a cavity at the top of the implant; the compression spring is accommodated in a cavity formed by the cylindrical base body and the positioning sleeve; the bottom of the measuring column is contacted with the top end of the compression spring after the top open end of the cylindrical matrix stretches into the bottom end of the compression spring, the bottom end of the compression spring is contacted with the inner bottom of the positioning sleeve, and a first scale is axially arranged on the outer wall of the measuring column.
The invention comprises a main body structure formed by four parts of a cylindrical matrix, a positioning sleeve, a compression spring and a measuring column, wherein the cylindrical matrix and the positioning sleeve are mainly used for installing the compression spring and the measuring column; the vertical restoration distance is the distance between the implant and the jaw teeth after being implanted into a bone plane and comprises a gum penetrating height, a height of a base station and a thickness of a restoration dental crown, so that the vertical restoration distance is measured by adopting the cylindrical matrix and the measuring column to be matched with each other, the axial length of the cylindrical matrix can be set according to the gum penetrating height and the height of the base station and used as a fixed length, the length of the measuring column extending out of the cylindrical matrix in the measuring process is used as a variable length, and the fixed length plus the current variable length is used as the actually measured vertical restoration distance; in addition, the positioning sleeve is also used for being embedded into a cavity at the top of the implant, and plays a role in positioning the whole measuring assembly.
In the use process, after the implant is implanted to a position considered to be proper by a doctor, the measuring assembly is embedded into a cavity at the top of the implant through a positioning sleeve at the bottom, and at the moment, the axial direction of the measuring assembly is in the same direction as the axial direction of the implant; the patient is instructed to bite the top end of the measuring column lightly, the measuring column transmits the downward pressing action to the compression spring, the compression spring is compressed, and the measuring column part is pressed into the cylindrical base body; the top of the measuring column with the first graduated scale is contacted with the opposite jaw teeth, the reading of the first graduated scale on the measuring column is read, and the vertical restoration distance of the implant is obtained, namely the distance between the top of the implant and the opposite jaw teeth. If the reading is 6mm, the implant can be further advanced by about 1mm by using a torque wrench; if the reading is greater than or equal to 7mm, it indicates that the vertical repair distance is appropriate.
Further, the device also comprises a central screw, a threaded hole is formed in the bottom end face of the positioning sleeve, and a through hole penetrating along the axial direction is formed in the bottom end face of the measuring column; one end of the central screw rod penetrates through the threaded hole and the central through hole of the compression spring in sequence through threaded connection and then stretches into the through hole of the measuring column, and the other end of the central screw rod is used for stretching into the bottom in the cavity at the top of the implant.
According to the invention, the central screw rod is arranged, and sequentially penetrates through the bottom end surface of the positioning sleeve and the through hole on the measuring column after compressing the spring, and is mainly fixed on the positioning sleeve through threaded connection, so that the positioning effect on the whole measurement and installation of the measuring assembly, the guiding effect on the compressing spring and the guiding effect on the measuring column are achieved through the central screw rod; firstly, in the use process, as the cavity structures on the end faces of the top ends of different implants are different and are mostly of conical structures, the outer wall of the positioning sleeve cannot be in contact with the inner wall of the cavity, so that a stabilizing effect is achieved, or the measurement accuracy can be influenced due to the fact that the positioning sleeve is inclined and the like, the bottom end of the central screw rod can be completely inserted into the cavity of the top end of the implant when the device is used, the bottom end of the central screw rod can be in contact with the inner bottom of the cavity, and the positioning sleeve is further assisted to improve the accuracy and stability of the installation of the measuring assembly; so that the universal type planting vertical clearance measuring tool is suitable for most of the types of the planting bodies on the market at present. Secondly, the central screw rod penetrates through the central through hole of the compression spring along the axial direction of the compression spring to play a role of a guide post, so that the compression spring always performs compression or extension action along the axial direction of the central screw rod, and the compression spring is prevented from deforming; finally, the top end of the central screw rod stretches into the through hole of the measuring column, two fixing points in the axial direction of the central screw rod are formed at the threaded connection position and the through hole, so that the inner wall of the through hole plays a supporting role on the central screw rod, and conversely, when the measuring column stretches and contracts relative to the cylindrical matrix, the central screw rod can play a certain axial displacement guiding role.
Further, the device also comprises a compensation measuring shaft sleeve, wherein the axial length of the compensation measuring shaft sleeve is larger than that of the measuring column, the outer wall of the compensation measuring shaft sleeve is in threaded connection with the inner wall of the through hole, and the central screw rod extends into the through central through hole of the compensation measuring shaft sleeve; the side wall of the compensation measuring shaft sleeve is provided with a groove extending along an axial straight line, and a second graduated scale is arranged along the inner edge of the groove.
According to the invention, the compensation measuring shaft sleeve is additionally arranged in the original measuring structure so as to prolong the effective measuring length of the measuring column, and the compensation measuring shaft sleeve is screwed in the through hole of the measuring column by adopting the cylindrical structure, so that the structure is simple, the disassembly and assembly operation are convenient, and the axial positioning and the fixation of the compensation measuring shaft sleeve and the measuring column bracket are facilitated; the central screw rod extends into the central through hole of the compensation measuring shaft sleeve, so that the corresponding supporting and guiding functions are realized; the axial length of the compensation measuring shaft sleeve is greater than that of the measuring column, and after the whole effective measuring range of the compensation measuring shaft sleeve extends out of the measuring column, part of the shaft sleeve section is still positioned in the through hole to play a role in fixing.
Further, the outer wall of the central screw rod is in friction contact with the inner wall of the through hole or the central through hole of the compensation measuring shaft sleeve, and the rod section matched with the central screw rod and the through hole is in a gear structure on any radial section.
When the compensation measuring shaft sleeve is not arranged, the central screw rod directly stretches into the through hole of the measuring column, and at the moment, the outer wall of the central screw rod is in friction contact with the inner wall of the through hole; when the compensation measuring shaft sleeve is arranged, the central screw rod stretches into the central through hole of the compensation measuring shaft sleeve, and at the moment, the outer wall of the central screw rod is in friction contact with the inner wall of the central through hole of the compensation measuring shaft sleeve; the structure stability is improved, and the guiding effect is guaranteed; and through seting up the recess that extends along axial on the corresponding center screw rod pole section lateral wall, form radial cross-section and be the structure of gear shape, reduce friction area of contact, do benefit to the frictional resistance who reduces center screw outer wall and measuring post inner wall.
Further, an annular baffle plate is circumferentially arranged on the inner wall of the cylindrical base body close to the top open end, an annular buckle is circumferentially arranged on the outer wall of the measuring column close to the bottom end, and the inner diameter of the annular baffle plate is smaller than the outer diameter of the annular buckle; the outer wall of annular buckle and the inner wall contact of tube-shape base member, the inner wall and the outer wall contact of measuring column of annular baffle.
Through the annular baffle on tubular base member top and the annular buckle adaptation of measuring the post bottom, play axial spacing effect to measuring the post, prevent to measure the post and roll off from tubular base member roll-off, bring inconvenience for the measurement operation.
A first contact surface is formed between the outer wall of the annular buckle and the inner wall of the cylindrical matrix, a second contact surface is formed between the inner wall of the annular baffle and the outer wall of the measuring column, two supporting points are formed in the axial direction of the measuring column, the axial movement of the measuring column along the cylindrical matrix is guaranteed, the inclination of the measuring column is prevented, and the measuring effect is influenced.
Further, the oral planting vertical clearance measuring component is in a measuring state or a non-measuring state, and the compression spring is always in a compression state.
Especially when the distance between the vertical gaps of the dental implant in the non-measuring state or the measuring state exceeds the testable distance, the measuring column stretches out of the cylindrical matrix under the pushing force of the compression spring when the compression spring is in a proper compression state and is in a stable state, so that the relative movement can not occur; in addition, the first graduated scale on the measuring column can be guaranteed to be positioned outside the cylindrical base body, when the measuring column is detected, the measuring column can be compressed only when being subjected to downward pressure, and partial column sections are embedded into the positioning sleeve before the measuring column is not detected under the action of the weight of the measuring column, so that the measuring result is influenced.
Further, the outer diameter of the positioning sleeve is smaller than the outer diameter of the cylindrical matrix, and the outer diameter of the cylindrical matrix is larger than the inner diameter of the cavity of the implant.
The external diameter of the positioning sleeve is smaller than that of the cylindrical matrix, the external diameter of the cylindrical matrix is larger than the internal diameter of the cavity of the implant, and a step is formed at the joint of the cylindrical matrix and the positioning sleeve, so that the axial limiting effect on the cylindrical matrix is achieved, and the cylindrical matrix is prevented from being embedded into the cavity on the implant, so that the measurement accuracy is prevented from being influenced.
Further, a connecting plate is arranged on the outer wall of the top open end of the positioning sleeve in a circumferential ring mode, the upper plate surface of the connecting plate is in contact with the end face of the bottom open end of the cylindrical base body, and the connecting plate is penetrated through a bolt, then screwed and embedded into the end face of the bottom open end of the cylindrical base body.
The positioning sleeve and the cylindrical matrix are detachably connected through the bolts, so that the operation of dismounting, overhauling, replacing the spring and measuring the column is facilitated, and the positioning sleeve is convenient to replace and is convenient to adapt to different implant inner diameters.
Further, an annular upper pressing plate is arranged on the top end face of the compression spring, and an annular lower pressing plate is arranged on the bottom end face of the compression spring; the free end face of the upper pressing plate is fixed with the end face of the bottom end of the measuring column, and the free end face of the lower pressing plate is fixed with the inner bottom face of the positioning sleeve.
The upper pressing plate and the lower pressing plate are respectively arranged at the two ends of the compression spring, so that the contact area between the two ends of the compression spring and the measuring column and the positioning sleeve is increased; on the other hand, the upper pressing plate and the lower pressing plate are prevented from being fixed on the bottom end face of the measuring column and the inner bottom face of the positioning sleeve on the corresponding sides through gluing, welding or screw connection, a good radial limiting effect is achieved on the compression spring, the axial leads of the compression spring, the measuring column, the cylindrical matrix and the positioning sleeve are guaranteed to coincide, the compression spring is enabled to be uniformly stressed, and the measuring precision is improved.
Further, the axial length of the cylindrical matrix and the axial length of the measuring column extending out of the cylindrical matrix are used for measuring the height of the vertical gap for oral implantation; the top end of the measuring column is marked as a starting point of the measuring range of the first scale, and the reading value of the starting end is the axial length value of the cylindrical matrix; the measuring range end point reading of the first graduated scale is the sum of the axial length of the cylindrical matrix and the axial length of the measuring column extending out of the cylindrical matrix.
According to the invention, the cylindrical matrix and the measuring column are matched for use to measure the vertical gap of dental implant, the axial length of the cylindrical matrix can be set according to the gingival penetration height and the height of the abutment, the axial length is used as a fixed length, the length of the measuring column extending out of the cylindrical matrix in the measuring process is used as a variable length, and the fixed length plus the current variable length is used as the actually measured vertical restoration distance; the initial end reading value is the axial length value of the cylindrical matrix; the range termination point reading of the first graduated scale is the sum of the axial length of the cylindrical matrix and the axial length of the measuring column extending out of the cylindrical matrix, so that when the measuring is performed, the reading of the first graduated scale corresponding to the axial vertical intersection of the plane of the top end face of the cylindrical matrix and the axial direction of the measuring column is the distance value of the vertical gap of the dental implant, the scaling operation is not needed, and the measuring device is convenient and rapid.
The invention has the following advantages and beneficial effects:
the invention comprises a main body structure formed by four parts of a cylindrical matrix, a positioning sleeve, a compression spring and a measuring column, wherein the cylindrical matrix and the positioning sleeve are mainly used for installing the compression spring and the measuring column; the vertical restoration distance is the distance between the implant and the jaw teeth after being implanted into a bone plane and comprises a gum penetrating height, a height of a base station and a thickness of a restoration dental crown, so that the vertical restoration distance is measured by adopting the cylindrical matrix and the measuring column to be matched with each other, the axial length of the cylindrical matrix can be set according to the gum penetrating height and the height of the base station and used as a fixed length, the length of the measuring column extending out of the cylindrical matrix in the measuring process is used as a variable length, and the fixed length plus the current variable length is used as the actually measured vertical restoration distance; in addition, the positioning sleeve is also used for being embedded into a cavity at the top of the implant, and plays a role in positioning the whole measuring assembly.
In the use process, after the implant is implanted to a position considered to be proper by a doctor, the measuring assembly is embedded into a cavity at the top of the implant through a positioning sleeve at the bottom, and at the moment, the axial direction of the measuring assembly is in the same direction as the axial direction of the implant; the patient is instructed to bite the top end of the measuring column lightly, the measuring column transmits the downward pressing action to the compression spring, the compression spring is compressed, and the measuring column part is pressed into the cylindrical base body; the top of the measuring column with the first graduated scale is contacted with the opposite jaw teeth, the reading of the first graduated scale on the measuring column is read, and the vertical restoration distance of the implant is obtained, namely the distance between the top of the implant and the opposite jaw teeth. If the reading is 6mm, the implant can be further advanced by about 1mm by using a torque wrench; if the reading is greater than or equal to 7mm, it indicates that the vertical repair distance is appropriate.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:
FIG. 1 is a schematic view of a measuring assembly and implant fitting cross-section structure of the present invention;
FIG. 2 is a schematic overall axial cross-sectional structure of the present invention;
FIG. 3 is a schematic perspective view of a measuring assembly according to the present invention;
FIG. 4 is a schematic perspective view of a measuring body according to the present invention;
FIG. 5 is a schematic view of a compression spring structure of the present invention;
FIG. 6 is a schematic view of a partial structure of a center screw of the present invention;
FIG. 7 is a schematic axial cross-sectional view of an additional compensating measuring bushing of the present invention;
fig. 8 is a schematic diagram of the structure of the additional compensation measuring sleeve of the present invention, in a fully extended state.
In the drawings, the reference numerals and corresponding part names: the device comprises a 1-cylindrical base body, a 2-positioning sleeve, a 3-compression spring, a 4-measuring column, a 5-implant, a 6-annular baffle, a 7-annular buckle, an 8-central screw, a 81-threaded rod section, a 82-antifriction rod section, a 9-through hole, a 10-connecting plate, a 11-bolt, a 12-upper pressing plate, a 13-lower pressing plate, a 14-first graduated scale, a 15-guiding taper hole, a 16-compensating measuring column, a 17-groove, a 18-second first graduated scale and a 19-third first graduated scale.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Example 1
The embodiment provides an oral planting vertical clearance measurement assembly, which comprises a cylindrical base body 1, a positioning sleeve 2, a compression spring 3 and a measurement column 4 which are coaxially arranged, wherein the cylindrical base body 1 and the positioning sleeve 2 are of cylindrical structures, and the compression spring 3 is a cylindrical compression spring; the two ends of the axial direction of the cylindrical matrix 1 are open, the top end of the axial direction of the positioning sleeve 2 is open, and the bottom end of the axial direction is closed. The bottom open end of the cylindrical matrix 1 is communicated and fixed with the top open end of the positioning sleeve 2, and the positioning sleeve 2 is used for being embedded into a cavity at the top of the implant 5; the compression spring 3 is accommodated in a cavity formed by the cylindrical base body 1 and the positioning sleeve 2; the bottom of measuring column 4 stretches into the top of back and contacts with compression spring 3 by the open end in top of tubular base member 1, compression spring 3's bottom and the interior bottom contact in positioning sleeve 2, is equipped with first scale 14 along the axial on measuring column 4's the outer wall.
Example 2
The device is further improved on the basis of the embodiment 1, and further comprises a central screw rod 8, wherein a threaded hole is formed in the bottom end face of the positioning sleeve 2, and a through hole 9 penetrating along the axial direction is formed in the bottom end face of the measuring column 4; one end of the central screw rod 8 sequentially passes through the threaded hole through the threaded connection, penetrates through the central through hole of the compression spring 3 and then stretches into the through hole 9 of the measuring column 4, and the other end of the central screw rod 8 is used for stretching into the bottom of the cavity at the top of the implant 5. The outer wall of the central screw rod 8 is in friction contact with the inner wall of the through hole 9, and the rod section of the central screw rod 8 and the through hole 9 is of a gear structure on any radial section, as shown in fig. 6, the central screw rod 8 sequentially comprises a threaded rod section 81 and an antifriction rod section 82 along the axial direction, and the antifriction rod section 82 is of a gear structure on the radial section, so that the friction contact area with the inner wall of the through hole 9 is reduced.
Example 3
The device is further improved on the basis of the embodiment 1, and further comprises a compensation measuring shaft sleeve 16, wherein the axial length of the compensation measuring shaft sleeve 16 is larger than that of the measuring column 4, a through hole 9 penetrating along the axial direction is formed in the bottom end face of the measuring column 4, and the outer wall of the compensation measuring shaft sleeve 16 is in threaded connection with the inner wall of the through hole 9; the side wall of the compensation measuring shaft sleeve 6 is provided with a groove 17 extending along an axial straight line, and a second graduated scale 18 is arranged along the inner edge of the groove 17. The device further comprises a central screw rod 8, a threaded hole is formed in the bottom end face of the positioning sleeve 2, one end of the central screw rod 8 sequentially penetrates through the threaded hole through threaded screwing, penetrates through the central through hole of the compression spring 3 and then stretches into the central through hole of the compensation measuring shaft sleeve 16, and the other end of the central screw rod 8 is used for stretching into the bottom of the cavity at the top of the implant 5. The outer wall of the central screw rod 8 is in friction contact with the inner wall of the central through hole of the compensation measuring shaft sleeve 16, and the rod section of the central screw rod 8 matched with the through hole 9 is of a gear structure on any radial section, as shown in fig. 6, the central screw rod 8 sequentially comprises a threaded rod section 81 and an antifriction rod section 82 along the axial direction, and the radial section of the antifriction rod section 82 is of a gear structure, so that the friction contact area with the inner wall of the through hole 9 is reduced.
According to the test requirement, a third graduated scale 19 can be arranged on the outer wall of the positioning sleeve 2 in an extending way along the axial direction, so that the gingival penetration height can be conveniently observed.
Example 3
Further improvement on the basis of embodiment 2, the annular baffle 6 is circumferentially arranged on the cylindrical base body 1 and on the inner wall close to the top open end, the annular baffle 6 can be a continuous structure or a circular structure formed by a plurality of arc plates which are arranged at intervals, the annular buckle 7 is circumferentially arranged on the outer wall close to the bottom end of the measuring column 4, the annular buckle 7 can also be a circular structure formed by adopting a continuous structure or an interval arrangement, and the inner diameter of the annular baffle 6 is smaller than the outer diameter of the annular buckle 7. The outer wall of annular buckle 7 and the inner wall contact of tubular base member 1, the inner wall of annular baffle 6 and the outer wall contact of measuring post 4, the outer wall of measuring post 4 and the inner wall frictional contact of annular baffle 6. The oral implantation vertical clearance measuring component is in a measuring state or a non-measuring state, and the compression spring 3 is always in a compression state.
Example 4
Further improvement on the basis of the embodiment 3, the outer diameter of the positioning sleeve 2 is smaller than the outer diameter of the cylindrical base body 1, the outer diameter of the cylindrical base body 1 is larger than the inner diameter of the cavity of the implant 5, and the inner diameters of the cylindrical base body 1 and the positioning sleeve 2 are equal. The connecting plate 10 is arranged on the outer wall of the top open end of the positioning sleeve 2 in a circumferential ring, the upper plate surface of the connecting plate 10 is in contact with the bottom open end face of the cylindrical base body 1, the connecting plate 10 is penetrated through by the bolts 11, then the connecting plate 10 is screwed and embedded into the bottom open end face of the cylindrical base body 1, and the bolts 11 adopt countersunk bolts.
Example 5
Further improvement on the basis of the embodiment 4, an annular upper pressing plate 12 is arranged on the top end face of the compression spring 3, and an annular lower pressing plate 13 is arranged on the bottom end face of the compression spring 3; the free end plate surface of the upper pressing plate 12 is fixed with the end surface of the bottom end of the measuring column 4 by adhesive, and the free end plate surface of the lower pressing plate 13 is fixed with the inner bottom surface of the positioning sleeve 2 by adhesive. Further, the outer walls of the lower platen 13 and the upper platen 12 are clearance-fitted with the inner wall of the cylindrical base body 1 or the positioning sleeve 2.
Example 6
Further improvements on the basis of example 4, the axial length of the cylindrical base body 1 and the axial length of the measuring column 4 extending out of the cylindrical base body 1 are used for measuring the height of the vertical gap for oral implantation; the top end of the measuring column 4 is marked as a starting point of the measuring range of the first scale 14, and the reading value of the starting end is the axial length value of the cylindrical matrix 1; the end-of-range point reading of the first scale 14 is the sum of the axial length of the cylindrical substrate 1 and the axial length of the measuring column 4 extending out of the cylindrical substrate 1.
One specific application of the measurement assembly provided based on example 6 is as follows:
according to practical situations, the abutment height needs to be at least 4mm, meanwhile, the currently adopted planting system generally has a gum penetrating height of at least 1mm, the thickness of the dental crown depends on the material of the dental crown, the porcelain crown needs to be at least 2mm, and the full porcelain crown needs to be at least 0.7mm. It is generally recommended that the vertical repair distance be 4+1+2=7 mm. Therefore, the height of the cylindrical matrix is 4mm, the diameter is 3.3-7 mm, the diameter is different (the diameter which can be adapted to different models and specifications of the implant) and the diameter of the measuring column is smaller than the diameter of the cylindrical body, the length of the measuring column 4 extending out of the cylindrical body 1 is 4mm, therefore, the reading of the starting point of the first graduated scale 14 is 4mm, the degree of the ending point of the first graduated scale 14 is 8mm, and the reading obtained from the first graduated scale 14 on the measuring column 4 is reduced by the compression spring. In addition, the function of measuring the distance of more than 8mm can be realized through the compensation measuring shaft sleeve 16, the measuring range of the second graduated scale 19 on the compensation measuring shaft sleeve 16 can be set to be 4mm, and 4+4=12 mm is realized, so that the measuring range of the whole measuring assembly is 4-12mm in height.
In the use process, after the implant 5 is implanted to a position considered to be proper by a doctor, the measuring assembly is propped against the inner bottom surface of the cavity of the implant 5 through the central screw rod 8, the positioning sleeve 2 is embedded into the top port of the cavity, the patient is ordered to bite lightly, the jaw surface is contacted with the top surface of the measuring column 4, downward pressure is applied to the measuring column 4, and the compression spring 3 is compressed; the opposite teeth are completely engaged, at this time, the top surface of the measuring column 4 is contacted with the opposite teeth, and the reading on the first scale 5 is the vertical restoration distance of the implant (the distance between the top of the implant and the opposite teeth). The measured vertical repair distance for implantation can be used to guide the retention pattern of the later prosthesis and the subsequent treatment regimen: (1) planting vertical repair distance >8mm: superstructure adhesive/screw retention; (2) the vertical repair distance for planting is 6-8 mm: the upper structure preferably selects screw retention; (3) planting vertical repair distance <6mm: the implant is not suitable for being planted and repaired, and the implant is required to be deeply buried, the orthodontic auxiliary treatment and the grinding of the jaw teeth are required.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The vertical clearance measuring assembly for oral implantation is characterized by comprising a cylindrical base body (1), a positioning sleeve (2), a compression spring (3) and a measuring column (4) which are coaxially arranged; the bottom open end of the cylindrical matrix (1) is communicated and fixed with the top open end of the positioning sleeve (2), and the positioning sleeve (2) is used for being embedded into a cavity at the top of the implant (5); the compression spring (3) is accommodated in a cavity formed by the cylindrical base body (1) and the positioning sleeve (2); the bottom end of the measuring column (4) is contacted with the top end of the compression spring (3) after the top open end of the cylindrical base body (1) is stretched in, the bottom end of the compression spring (3) is contacted with the inner bottom of the positioning sleeve (2), and a first scale (14) is axially arranged on the outer wall of the measuring column (4);
the outer diameter of the positioning sleeve (2) is smaller than the outer diameter of the cylindrical matrix (1), and the outer diameter of the cylindrical matrix (1) is larger than the inner diameter of the cavity of the implant (5);
the axial length of the cylindrical matrix (1) and the axial length of the measuring column (4) extending out of the cylindrical matrix (1) are used for measuring the height of the vertical gap for oral implantation; the top end of the measuring column (4) is marked as a starting point of the measuring range of the first scale (14), and the reading value of the starting end is the axial length value of the cylindrical matrix (1); the measuring range end point of the first scale (14) reads as the sum of the axial length of the cylindrical matrix (1) and the axial length of the measuring column (4) extending out of the cylindrical matrix (1).
2. The oral implant vertical clearance measurement assembly according to claim 1, further comprising a central screw (8), wherein a threaded hole is formed in the bottom end surface of the positioning sleeve (2), and a through hole (9) penetrating along the axial direction is formed in the bottom end surface of the measurement column (4); one end of the central screw rod (8) sequentially passes through the threaded hole through the threaded joint, penetrates through the central through hole of the compression spring (3) and then stretches into the through hole (9) of the measuring column (4), and the other end of the central screw rod (8) is used for stretching into the bottom of the cavity at the top of the implant (5).
3. The oral implant vertical clearance measurement assembly according to claim 2, further comprising a compensation measurement sleeve (16), the axial length of the compensation measurement sleeve (16) being greater than the axial length of the measurement post (4), the outer wall of the compensation measurement sleeve (16) being threadedly connected to the inner wall of the through hole (9), the central screw (8) extending into the through central through hole of the compensation measurement sleeve (16); a groove (17) extending along an axial straight line is formed in the side wall of the compensation measuring shaft sleeve (16), and a second graduated scale (18) is arranged along the inner edge of the groove (17).
4. A dental implant vertical clearance measuring assembly according to claim 2 or 3, characterized in that the outer wall of the central screw (8) is in frictional contact with the inner wall of the central through hole (9) or the compensating measuring bush (16), and that the shaft section of the central screw (8) which is adapted to the through hole (9) is in a gear structure in any radial section.
5. The oral implant vertical clearance measurement assembly according to claim 1, characterized in that an annular baffle (6) is circumferentially arranged on the cylindrical base body (1) and on the inner wall near the top open end, an annular buckle (7) is circumferentially arranged on the outer wall near the bottom end on the measurement column (4), and the inner diameter of the annular baffle (6) is smaller than the outer diameter of the annular buckle (7); the outer wall of the annular buckle (7) is contacted with the inner wall of the cylindrical base body (1), and the inner wall of the annular baffle (6) is contacted with the outer wall of the measuring column (4).
6. The oral implant vertical clearance measurement assembly according to claim 5, characterized in that the compression spring (3) is always in a compressed state in the measuring state or in the non-measuring state of the oral implant vertical clearance measurement assembly.
7. The oral implant vertical clearance measurement assembly according to claim 1, wherein a connecting plate (10) is circumferentially arranged on the outer wall of the top open end of the positioning sleeve (2), the upper plate surface of the connecting plate (10) is in contact with the bottom open end face of the cylindrical base body (1), and the connecting plate (10) is penetrated by a bolt (11) and then is screwed into the bottom open end face of the cylindrical base body (1).
8. The oral implant vertical clearance measurement assembly according to claim 1, wherein an annular upper pressing plate (12) is arranged on the top end surface of the compression spring (3), and an annular lower pressing plate (13) is arranged on the bottom end surface of the compression spring (3); the free end face of the upper pressing plate (12) is fixed with the end face of the bottom end of the measuring column (4), and the free end face of the lower pressing plate (13) is fixed with the inner bottom face of the positioning sleeve (2).
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| CN112773530A (en) * | 2021-01-15 | 2021-05-11 | 昆明市延安医院 | Implant balance reference device and use method thereof |
| KR102555871B1 (en) * | 2021-04-30 | 2023-07-14 | 오스템임플란트 주식회사 | Gauge for implant surgery |
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