CN103800083B - Miniature automatic dental-preparation cutting device in oral cavity - Google Patents
Miniature automatic dental-preparation cutting device in oral cavity Download PDFInfo
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- CN103800083B CN103800083B CN201310671482.9A CN201310671482A CN103800083B CN 103800083 B CN103800083 B CN 103800083B CN 201310671482 A CN201310671482 A CN 201310671482A CN 103800083 B CN103800083 B CN 103800083B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 210000000214 mouth Anatomy 0.000 title claims abstract description 18
- 238000005520 cutting process Methods 0.000 title abstract description 10
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 241000219739 Lens Species 0.000 description 29
- 210000000695 crystalline len Anatomy 0.000 description 29
- 210000003128 head Anatomy 0.000 description 6
- 210000001519 tissue Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 3
- 241001212149 Cathetus Species 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000003954 umbilical cord Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses a miniature automatic dental-preparation cutting device in an oral cavity. The device comprises a motor drive component, an optical path component and a monitor component, wherein an X galvanometer oscillating motor and a Y galvanometer oscillating motor in the motor drive component are arranged on an oscillating motor mounting seat; a linear motor is fixed on a linear motor mounting seat through a screw; the linear motor mounting seat is fixed on a mounting bottom plate; an X galvanometer plate in the optical path component is adhered to the X galvanometer oscillating motor, and a Y galvanometer plate is adhered to the Y galvanometer oscillating motor; a focusing lens is arranged on a lens mounting seat through a screw ring; a beam combiner is fixed on a beam combiner mounting seat through a screw; an industrial lens in the monitor component is connected to a CCD (charge coupled device) image sensor. The device can be used for cutting a tooth to shapes of various preparation bodies required in clinical application, and performing para-oral real-time monitor, so that the operation safety can be further guaranteed.
Description
Technical field
The present invention relates to operation on oral cavity technique with the apparatus field, more particularly to miniature automatic tooth preparation is cut in a kind of oral cavity
Turning device.
Background technology
At present, in dental oral treatment, it is sometimes desirable to quantitative cutting, turbo-driven tooth are carried out to hard tooth tissue
Section's mobile phone is widely used in the dentist's office in global range and medical laboratory, most of dental handpieces include handle portion,
The instrument of the adapter in handle portion one end and the carrying driving head in the other end, adapter provide mobile phone and various skies
The connection of gas and water, light and electricity suppl pipeline, these pipelines are typically combined in so-called umbilic cord (umbilical cord)；
Driving head accommodates instrument rotary part, and the instrument rotary part is generally by tool base or chuck and motor or turbines
It is rotatably installed in head for driving chuck into, the motor or turbine.
In prior art, cutting of the dental handpiece to tooth employs driving head with teeth contact to complete cutting
Work, due to the shake of staff, and in oral cavity working place narrow and small, tooth preparation (dental preparation) backteeth
The form accuracy of tooth depends on the clinical experience and technical merit of doctor, causes tooth preparation result uneven, and actual work
During work, operating theater instruments produce noise greatly, patient is also resulted in and does not accommodate intense strain, and Post operation every time, and apparatus will also
Carry out overall cleaning and disinfect.
The content of the invention
It is an object of the invention to provide in a kind of oral cavity miniature automatic tooth preparation topping machanism, the topping machanism passes through
Cut dental hard tissue, is cut using automatic digital, makes the precision of tooth preparation higher, reduces working doctor intensity；
The various prepared shape shaping by stock removal of clinical demand can be carried out simultaneously to tooth, and carry out the outer monitor in real time of mouth, further
Ensure operation safety.
The topping machanism of miniature automatic tooth preparation in a kind of oral cavity, described device include：Motor drive component, light path group
Part and monitor component, wherein：
X galvanometers oscillating motor and Y galvanometers oscillating motor in the motor drive component is arranged on oscillating motor mounting seat
On, linear electric motors are fixed by screws in linear electric motors mounting seat, and the linear electric motors mounting seat is fixed on mounting base；
The linear electric motors are connected with motor connection axle, and are fixed with lens link by nut；The lens link is by connecting
Spindle fixing nut is fixed on slide block with lens mounting seat, makes the slide block with described by the slide block and line slideway
Lens mounting seat makees smooth linear slide on the line slideway；The rear side of the lens mounting seat passes through screw and grating
Thin plate connection is installed, the grating installs the grating scale that linear grating sensor is posted on thin plate, the linear grating sensor
Be fixed on the mounting base by L-shaped seat, and with the grating scale keeping parallelism；
X galvanometer pieces in the optical path component are bonded on the X galvanometers oscillating motor, and Y galvanometer pieces are bonded in the Y and shake
On mirror oscillating motor, condenser lenses are arranged in the lens mounting seat by threaded collar, and light combination mirror is fixed by screws in conjunction
In beam mirror mounting seat, and before the light combination mirror mounting seat is fixed by screws in first on external part；
Second reflecting mirror is arranged in the second reflecting mirror mounting seat by screw, and the second reflecting mirror mounting seat passes through spiral shell
Nail is fixed on the mounting base, and second reflecting mirror is on same vertical curve with the center of the light combination mirror；First
Reflecting mirror is arranged in the first reflecting mirror mounting seat, and the bonnet by screw with first reflecting mirror is fixed on 45 degree of mirror peaces
On dress end, before one end and the 3rd of 45 degree of mirror installation ends, external part is threaded connection, and the other end is led to tooth positioner
Pin connection is crossed, external part is connected with external part before described first by screw thread before the described 3rd, so ensures that described first is anti-
Penetrate mirror, light combination mirror, condenser lenses and Y galvanometer pieces to be centrally located on same level straight line；
Industrial lens in the monitor component are threadedly attached on ccd image sensor, the ccd image sensing
Device is fixed by screws on CCD camera link, and the CCD camera link can be in the groove of CCD camera bracing frame
Inside freely up and down slide, the hole by screw by the hole of the CCD camera link with the CCD camera bracing frame is fixed
Together, and the hole of above-mentioned CCD camera bracing frame can be fixed on big operating board.
As seen from the above technical solution provided by the invention, the topping machanism provided by the embodiment of the present invention is by swashing
Light cuts dental hard tissue, is cut using automatic digital, makes the precision of tooth preparation higher, reduces working doctor intensity；Together
When the various prepared shape shaping by stock removal of clinical demand can be carried out to tooth, and carry out the outer monitor in real time of mouth, further protect
Card operation safety.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to using needed for embodiment description
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is illustrated by the overall structure that the embodiment of the present invention provides the topping machanism of miniature automatic tooth preparation in oral cavity
Figure；
Fig. 2 is the structural representation of oscillating motor in motor drive component described in the embodiment of the present invention；
Structural representations of the Fig. 3 for motor drive component cathetus motor described in the embodiment of the present invention；
Decomposition texture schematic diagrams of the Fig. 4 for optical path component described in the embodiment of the present invention；
A width structural representations of the Fig. 5 for monitor component described in the embodiment of the present invention；
Another width structural representations of the Fig. 6 for monitor component described in the embodiment of the present invention；
Fig. 7 is provided the working light path schematic diagram of topping machanism by the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground description, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based on this
Inventive embodiment, the every other enforcement obtained under the premise of creative work is not made by those of ordinary skill in the art
Example, belongs to protection scope of the present invention.
The topping machanism provided by the embodiment of the present invention realizes the excision of tooth pathology sclerous tissueses by laser cutting, swashs
The galvanometer module that the light path of light is driven using two oscillating motors, the lens that a linear electric motors drive, and two fixations are not
Dynamic reflecting mirror and a light combination mirror realize the change of Cutting trajectory and the monitor in real time of working angles.Below in conjunction with accompanying drawing
The embodiment of the present invention is described in further detail, is illustrated in figure 1 miniature automatic in the provided oral cavity of the embodiment of the present invention
The overall structure diagram of the topping machanism of tooth preparation, device described in Fig. 1 mainly include motor drive component, optical path component
With three parts of monitor component, wherein motor drive component mainly includes：X galvanometers oscillating motor 11, Y galvanometer oscillating motors
12, oscillating motor mounting seat 13, linear electric motors 14；Optical path component is mainly included：X galvanometers 15, Y galvanometers 16, condenser lenses 21,
Light combination mirror 22, the second reflecting mirror 23, the first reflecting mirror 24；Monitor component is mainly included：Ccd image sensor 31, industrial mirror
32, CCD camera bracing frame 33, CCD camera link 34 are described in detail to each several part component below：
X galvanometers oscillating motor 11 and Y galvanometers oscillating motor 12 in motor drive component is arranged on oscillating motor mounting seat
On 13, the structural representation of oscillating motor in motor drive component described in the embodiment of the present invention is illustrated in figure 2, in Fig. 2：X shakes
The face of cylinder 11A of mirror oscillating motor 11 is coordinated with the hole 11A-1 of oscillating motor mounting seat 13, is fixed by screw 13-1；Y galvanometers
The face of cylinder 12A of oscillating motor 12 is coordinated with the hole 12A-1 of oscillating motor mounting seat 13, is fixed by screw 13-2；Swing electricity
Machine mounting seat 13 is fixed on the face 1A-1 of mounting base 1A by three screws 15.
The structural representation of motor drive component cathetus motor described in the embodiment of the present invention is illustrated in figure 3, in Fig. 3：
Linear electric motors 14 are fixed by screws in linear electric motors mounting seat 14A, and linear electric motors mounting seat 14A is fixed on mounting base 1A
On.The linear electric motors 14 are connected with motor connection axle 14C, and are fixed with lens link 14D by nut；Lens link
14D is fixed on slide block 14F-1 by connecting shaft fixing nut 14E and lens mounting seat 21-A, by slide block 14F-1 and straight line
Guide rail 14F-2 makes slide block 14F-1 make smooth linear slide on line slideway 14F-2 with lens mounting seat 21-A；Lens
The rear side of mounting seat 21-A is fixedly connected by the face 14-B4 that screw installs thin plate 14B with grating, and grating is installed on thin plate 14B
The grating scale 14B-1 of linear grating sensor is posted, linear grating sensor is fixed on mounting base 1A by L-shaped seat, and
With the grating scale 14B-1 keeping parallelisms, grating scale 14B-1, the grating sensor head 14B- in above-mentioned grating installation thin plate 14B
2 and sensor installation seat 14B-3 are fixedly mounted by screw.
The decomposition texture schematic diagram of optical path component described in the embodiment of the present invention is illustrated in figure 4, in Fig. 4：In optical path component
X galvanometers 15 be bonded on X galvanometers oscillating motor 11, Y galvanometers 16 are bonded on Y galvanometers oscillating motor 12, condenser lenses 21 lead to
Threaded collar is crossed in lens mounting seat 21-A, and is threadably secured ring 21-B and fixed, lens mounting seat 21-A passes through spiral shell
Nail is fixed on slide block 14F-1 with lens link 14D.In addition, as described above, lens link 14D and 14 phase of linear electric motors
Even, so ensure that lens mounting seat 21-A is synchronous with the motion of linear electric motors 14, and condenser lenses 21 are fed back by grating 14B-1
Mobile distance.
Light combination mirror 22 is fixed by screws in light combination mirror mounting seat 22-A, and light combination mirror mounting seat 22-A is fixed by screw
On external part 45 before first；Second reflecting mirror 23 is arranged in the second reflecting mirror mounting seat 23-A by screw, the second reflection
Mirror mounting seat 23-A is fixed by screws on mounting base 1A, and the second reflecting mirror 23 is with 22 center of light combination mirror in same vertical
On line；Corresponding first reflecting mirror 24 is arranged in the first reflecting mirror mounting seat 24-A, and passes through screw and the first reflecting mirror 24
Bonnet be fixed on 45 degree of mirror installation ends 44, before one end of 45 degree of mirror installation ends 44 and the 3rd external part 43 by screw thread connect
Connect, the other end is connected by pin with tooth positioner, before the 3rd, external part 43 is connected with external part before first 45 by screw thread,
So ensure the center of the first reflecting mirror 24, light combination mirror 22, condenser lenses 21 and Y galvanometers 16 on same level straight line.In addition,
Above-mentioned tooth positioner can be used for meeting the common positioning use ground one's teeth in sleep in oral cavity.
A width structural representation of monitor component described in the embodiment of the present invention is illustrated in figure 5, is illustrated in figure 6 another
Width structural representation, with reference to Fig. 5 and 6：In monitor component, industrial lens 32 are threadedly attached in ccd image sensor 31
On, the face 31-D of ccd image sensor 31 is fixed by screws on the face 34-C of CCD camera link 34, CCD camera
The face 34-B of link 34 can freely up and down slide in the groove 33-B of CCD camera bracing frame 33, take the photograph CCD by screw
As the hole 34-A of head link 34 is fixed together with the hole 33-B of CCD camera bracing frame 33, above-mentioned CCD camera bracing frame
Hole 33-D can be fixed on big operating board, the center of the center of ccd image sensor 31 and the second reflecting mirror 23 exists
In same horizontal line.
In addition, as shown in figure 1, said apparatus also include housing unit, specifically including：First covering housing 41, second
Cover housing 42 and the 3rd and cover housing 46, above-mentioned each covering housing constitutes the casing part of described device, wherein：
The first covering housing 41 in housing unit is fixed on installed in the upper end of mounting base 1A, the 3rd covering housing 46
The rear end of mounting base 1A, ensures Y by the respective half slot cooperation of the first covering housing 41 and the 3rd covering housing 46
The back seat of galvanometer oscillating motor 12 is exposed at outside housing, it is ensured that motor radiating；
Before the front end and first of the first covering housing 41 and the 3rd covering housing 46, external part 45 is connected by screw, and second
The side that housing 42 is fixed by screws in mounting base 1A is covered, and is close in oscillating motor mounting seat 13, by first
Cover back seat of the respective half slot cooperation of housing 41 and the second covering housing 42 to ensure X galvanometers oscillating motor 11 and be exposed at shell
In vitro, it is ensured that motor radiating.
In actual applications, optical path component is fixed on same installation by what screw and screw thread coordinated with motor drive component
Above base plate, and can be with the relative position between adjusting part part by screw.
Part in above-mentioned motor drive component and optical path component is installed on same base plate, and golden using thin one layer
Category material is encapsulated.
Based on above-mentioned device, motor drive component drives optical path component motion, so that galvanometer and convex lenss motion, tool
Body includes：Two degree of freedom that galvanometer is controlled by oscillating motor are rotated and the movement of convex lenss one degree of freedom just can be realized swashing
Light focal beam spot has the movement of three degree of freedom relative to tooth is cut；Above-mentioned motor drive component adopts small linear voice coil loudspeaker voice coil
Motor drive slide block is moved on line slideway, and makees position feedback using small-sized high-precision linear grating sensor.
The working light path schematic diagram of the provided topping machanism of the embodiment of the present invention, with reference to Fig. 7, the device are provided
Specific work process be：
The laser projected from femtosecond laser generator is referred to as incident laser；Incident laser Jing X galvanometers pieces and Y galvanometer pieces
It is referred to as reflection laser afterwards；Laser is focused on after the reflection laser planoconvex lens referred to as；The focusing laser is anti-through light combination mirror and first
It is referred to as shoot laser after penetrating mirror, the shoot laser is acted on tooth, realizes Teeth-cutting.From the laser Jing of dental surface reflection
After crossing the reflection of the first reflecting mirror, light combination mirror and the second reflecting mirror, CCD charge-coupled image sensors are passed to as monitoring light, CCD by camera lens
Charge-coupled image sensor will monitor optical information processing, generate monitoring image on computers.
In sum, device provided by the present invention is relative to traditional tooth preparation operating theater instruments, using ultrashort pulse
Cut dental hard tissue, noiseless in working angles, to tooth adjacent tissue injure it is little, after cutting dental surface it is smooth,
Microscopic feature is good；Using the digitized cutting of automatization, make the precision of tooth preparation higher, and the skill set requirements to doctor subtract
It is little, working doctor intensity is reduced, the spread for being easy to tooth preparation to perform the operation alleviates the too low present situation of doctor's Proportion of patients,
More patients are made to obtain medical treatment chance；The various prepared shape shaping by stock removal of clinical demand can be carried out simultaneously to tooth, and
The outer monitor in real time of mouth is carried out, operation safety is further ensured that.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
Should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (4)
1. in a kind of oral cavity miniature automatic tooth preparation topping machanism, described device includes motor drive component and light path group
Part, it is characterised in that described device also includes monitor component, wherein：
The first oscillating motor and the second oscillating motor in the motor drive component is arranged on the first motor cabinet, the 3rd straight line
Motor is arranged on the second motor cabinet, and second motor cabinet is fixed on positioning plate；3rd linear electric motors and motor
Guide rod connects, and is fixed with lens mount link by nut, and the lens mount link passes through screw and lens mount
It is fixed on slide block, makes the slide block with the lens mount on the line slideway using the slide block and line slideway
Make smooth linear slide；The rear side of the lens mount is connected with light gratings by screw, posts straight line in the smooth gratings
The grating scale of grating sensor, the linear grating sensor are fixed on the positioning plate by L-shaped seat, and with the light
Grid chi keeping parallelism；
X galvanometer pieces in the optical path component are bonded on first oscillating motor, and Y galvanometer pieces are bonded in described second and swing
On motor, condenser lenses are arranged on the lens mount by threaded collar, and two-phase Look mirror is fixed by screws in two-phase Look mirror
On bearing, and before the two-phase Look mirror bearing is fixed by screws in first on external part；
Second reflecting mirror is arranged in reflecting mirror mounting seat by screw, and the reflecting mirror mounting seat is fixed by screws in described
On positioning plate, second reflecting mirror is on same vertical curve with the center of the two-phase Look mirror；First reflecting mirror is installed
On 45 degree of mirror installation ends, and it is fixed on 45 degree of mirror installation ends by screw and the bonnet of first reflecting mirror, institute
Before stating one end and the 3rd of 45 degree of mirror installation ends, external part is threaded connection, and the other end is connected by pin with localizer, institute
Before stating the 3rd, external part is connected with external part before described first by screw thread, so ensure first reflecting mirror, two-phase Look mirror,
Condenser lenses and Y galvanometer pieces are centrally located on same level straight line；
Camera lens in the monitor component is threadedly attached on the imageing sensor of CCD charge-coupled image sensors, and the CCD is electric
Lotus coupled apparatus is fixed by screws in CCD mounting seats, and the CCD mounting seats are fixed by screws on CCD guide rail brackets, and
The center of the CCD charge-coupled image sensors is centrally located in same horizontal line with second reflecting mirror.
2. according to claim 1 in oral cavity miniature automatic tooth preparation topping machanism, it is characterised in that described device is also
Including housing unit, wherein：
The first covering housing in the housing unit is arranged on the front end of the positioning plate, and the second covering housing is fixed on institute
The rear end of positioning plate is stated, and housing and second is covered by described first cover the respective half slot cooperation of housing to ensure
The back seat for stating the second oscillating motor is exposed at outside housing；
Before the front end and described first of the first covering housing and the second covering housing, external part is connected by screw, the
Four covering housings are fixed by screws in the rear end of the positioning plate, and are close on first motor cabinet, and the 3rd covers
Housing is fixed by screws in described first and covers on housing, and is close on first motor cabinet, covers by the described 3rd
The back seat that lid housing and the respective half slot of the 4th covering housing cooperate with ensureing first oscillating motor is exposed at outside housing.
3. according to claim 1 in oral cavity miniature automatic tooth preparation topping machanism, it is characterised in that
The optical path component is fixed on above same base plate with what screw thread coordinated by screw with the motor drive component, and is led to
The relative position crossed between screw adjusting part part.
4. according to claim 1 in oral cavity miniature automatic tooth preparation topping machanism, it is characterised in that
The optical path component is installed on same base plate with the part in the motor drive component, and golden using thin one layer
Category material is encapsulated.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310671482.9A CN103800083B (en) | 2013-12-11 | 2013-12-11 | Miniature automatic dental-preparation cutting device in oral cavity |
| CN201480047642.5A CN107205794A (en) | 2013-10-09 | 2014-07-23 | Digital control laser automates tooth preparation method and equipment and tooth positioner |
| US15/028,374 US10500017B2 (en) | 2013-10-09 | 2014-07-23 | Method and apparatus for tooth body automatic preparation by digital controlled laser light and tooth retainer |
| PCT/CN2014/082825 WO2015051661A1 (en) | 2013-10-09 | 2014-07-23 | Numerical control laser automatic tooth preparation method and device therefor, and tooth locator |
| US16/677,642 US10758317B2 (en) | 2013-10-09 | 2019-11-07 | Method and apparatus for tooth body automatic preparation by digital controlled laser light and tooth retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310671482.9A CN103800083B (en) | 2013-12-11 | 2013-12-11 | Miniature automatic dental-preparation cutting device in oral cavity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103800083A CN103800083A (en) | 2014-05-21 |
| CN103800083B true CN103800083B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310671482.9A Active - Reinstated CN103800083B (en) | 2013-10-09 | 2013-12-11 | Miniature automatic dental-preparation cutting device in oral cavity |
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| CN (1) | CN103800083B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3722043A4 (en) * | 2018-02-09 | 2021-04-07 | Beijing University School of Stomatology | Multi-degree of freedom laser processing device |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015051661A1 (en) * | 2013-10-09 | 2015-04-16 | 北京大学口腔医学院 | Numerical control laser automatic tooth preparation method and device therefor, and tooth locator |
| CN104921805B (en) * | 2015-05-20 | 2017-05-31 | 中卫祥光（北京）科技有限公司 | Visualization dot matrix laser therapeutic apparantus |
| CN107296659B (en) * | 2017-08-07 | 2019-11-05 | 鲁旭飞 | A kind of oral cavity grinding steering instrument |
| CN108420549B (en) * | 2018-02-02 | 2024-01-26 | 温州医科大学附属口腔医院 | Bone removing and tooth separating device for removing tooth blocking and generating |
| CN108338848B (en) * | 2018-03-27 | 2019-05-07 | 北京大学口腔医学院 | Stripping type laser tooth preparation method, apparatus, equipment and medium |
| CN108742889B (en) * | 2018-04-11 | 2020-10-23 | 电子科技大学 | Light spot track regulating and controlling device in laser tooth preparation robot |
| CN109820604B (en) * | 2019-04-08 | 2024-02-27 | 北京大学口腔医学院 | Built-in optical element and anti-pollution laser operation or processing equipment |
| CN114366369A (en) * | 2022-01-27 | 2022-04-19 | 北京大学口腔医学院 | Cutter for tissue inside oral cavity and cutting device |
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| Publication number | Publication date |
|---|---|
| CN103800083A (en) | 2014-05-21 |
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