CN206714746U - A kind of device for detecting odentoschim - Google Patents
A kind of device for detecting odentoschim Download PDFInfo
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- CN206714746U CN206714746U CN201720002768.1U CN201720002768U CN206714746U CN 206714746 U CN206714746 U CN 206714746U CN 201720002768 U CN201720002768 U CN 201720002768U CN 206714746 U CN206714746 U CN 206714746U
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- laser
- light beam
- odentoschim
- photodetector
- laser light
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Abstract
The utility model belongs to oral cavity monitoring technical field, discloses a kind of device for detecting odentoschim, including：Laser, spectroscope, the first lens, adaptive laser interferometer, the first photodetector, the second photodetector, data collecting card, signal processing unit, display unit.The utility model is solved and can not intuitively detect odentoschim in the prior art, and patient can be made to produce the problem of keenly feeling.The utility model by laser by exposing to dental surface, ultrasonic wave is motivated by thermoelastic effect, using Ultrasonic Nondestructive, has reached can intuitively be diagnosed to be in tooth hidden and has split, contactless between detection device and tooth, the painless technique effect of detection process during whole diagnosis.
Description
Technical field
It the utility model is related to oral cavity monitoring technical field, more particularly to a kind of device for detecting odentoschim.
Background technology
Odentoschim also known as infull tooth splits or tooth fine fisssure, refers to the non-physiologic fine cracks of crown surfaces, is often not easy to be found.
The crackle of odentoschim is often deep into Dentin Structure, be toothache the reason for one of.The weak link of dental structure, cusp inclined-plane be big,
Traumatic force etc. is the cause of disease.
Odentoschim is generally available sharp pin check at present, splits unobvious Ru hidden, can be coated with the tincture of iodine, makes infiltration is hidden to split dye
Color and shown clear.Sometimes probe is placed at crack and pressurizes or firmly prize, there can be pain.Abraded along crack, can
See that crackle reaches dentine deep layer.Swab is placed on the cusp of suspicious tooth, advises patient to be engaged, of short duration tear sample such as occur
Pain, then may the tooth be existing hidden splits.Above-mentioned detection method can not intuitively measure odentoschim, and patient can be made to produce pain.
Utility model content
By providing a kind of device for detecting odentoschim, solving can not intuitively examine the embodiment of the present application in the prior art
The problem of measuring odentoschim, and patient can be made to produce pain.
The embodiment of the present application provides a kind of device for detecting odentoschim, and described device includes：
Laser, the laser send laser；
The laser is divided into first laser light beam and second laser light beam by spectroscope, the spectroscope；
First lens, first lens are focused to the first laser light beam, the first laser after focusing
Light beam exposes to the dental surface；
Adaptive laser interferometer, the adaptive laser interferometer receive the first laser light beam and expose to the tooth
Caused reflected signal after tooth；
First photodetector, first photodetector receive the light letter after the adaptive laser interferometer
Number, and be converted to the first electric signal；
Second photodetector, second photodetector receive the second laser light beam, and are converted to the second electricity
Signal；
Data collecting card, the data collecting card and first photodetector and the second photodetector phase
Even, the data collecting card receives first electric signal and second electric signal；
Signal processing unit, the signal processing unit are connected with the data collecting card, the signal processing unit pair
Signal in the data collecting card is handled；
Display unit, the display unit are connected with the signal processing unit, and the display unit shows odentoschim shape
Looks.
Preferably, described device also includes：
Attenuator, the attenuator receive the second laser light beam；
Second lens, second lens receive the second laser light beam after the attenuator, and to described
Second laser light beam is focused, and the second laser light beam after focusing exposes to second photodetector.
Preferably, the incident power densities of the laser are less than or equal to 100MW/cm2。
Preferably, the laser is Nd:YAG laser.
Preferably, the Nd:The wavelength for the laser that YAG laser is sent is 266nm, pulsewidth 7ns, single pulse energy are
2mJ, repetition rate 10Hz.
Preferably, the energy of the first laser light beam be the laser gross energy 90%-98%, the second laser
The energy of light beam is the 2%-10% of the laser gross energy.
Preferably, the energy of the first laser light beam is the 95% of the laser gross energy, the second laser light beam
Energy be the laser gross energy 5%.
Preferably, the first laser light beam is focused to wide 0.1-0.3mm, long 2-4mm linear light by first lens
Source.
Preferably, the first laser light beam is focused to wide 0.2mm, long 3mm line source by first lens.
Preferably, first photodetector, second photodetector select avalanche photodide or photoelectricity
Multiplier tube.
The one or more technical schemes provided in the embodiment of the present application, have at least the following technical effects or advantages：
In the embodiment of the present application, laser is sent by laser, laser is divided into first laser light beam and by spectroscope
Dual-laser light beam, the first lens are focused to first laser light beam, and the first laser light beam after focusing exposes to dental surface,
Adaptive laser interferometer receives first laser light beam and exposes to caused reflected signal after tooth, and the first photodetector receives
Optical signal after adaptive laser interferometer, and the first electric signal is converted to, the second photodetector receives second laser
Light beam, and the second electric signal is converted to, data collecting card receives the first electric signal and the second electric signal, signal processing unit logarithm
Handled according to the signal in capture card, display unit shows odentoschim pattern.Laser is radiated at tooth by the embodiment of the present application
Surface, ultrasonic wave is motivated by thermoelastic effect, using the principle of Ultrasonic Nondestructive, intuitively can be diagnosed to be in tooth
Hidden to split and contactless between detection device and tooth during whole diagnosis, detection process is painless.
Further, in the embodiment of the present application, because the collimation of laser, laser can flexibly move in dental surface,
By encouraging the change of point to change the incoming position and angle of ultrasonic wave, the comprehensive detection to hidden crackle in tooth can be achieved,
Improve detection efficiency.
Further, in the embodiment of the present application, by controlling the incident power densities of laser, ensure that laser can be in tooth
In nondestructively excitation ultrasound, so as to nondestructively be detected to tooth.
Brief description of the drawings
It is required in being described below to embodiment to use in order to illustrate more clearly of the technical scheme in the present embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are one embodiment of the present utility model, for this
For the those of ordinary skill of field, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other
Accompanying drawing.
Fig. 1 is a kind of structural representation of the device for detection odentoschim that the utility model embodiment 1 provides；
Fig. 2 is a kind of structural representation of the device for detection odentoschim that the utility model embodiment 2 provides.
Wherein, 1- lasers, 2- spectroscopes, 3- attenuators, the lens of 4- first, the photodetectors of 5- first, 6- data are adopted
Truck, 7- teeth, the adaptive laser interferometer of 8-, the lens of 9- second, the photodetectors of 10- second, 11- signal processing units,
12- display units.
Embodiment
By providing a kind of device for detecting odentoschim, solving can not intuitively survey the embodiment of the present application in the prior art
The problem of going out odentoschim, and patient can be made to produce pain.
The technical scheme of the embodiment of the present application is in order to solve the above technical problems, general thought is as follows：
A kind of device for detecting odentoschim, sends laser, laser is divided into first laser light beam by spectroscope by laser
With second laser light beam, the first lens are focused to first laser light beam, and the first laser light beam after focusing exposes to tooth
Surface, adaptive laser interferometer receive first laser light beam and expose to caused reflected signal after tooth, the first photodetection
Device receives optical signal after adaptive laser interferometer, and is converted to the first electric signal, and the second photodetector receives the
Dual-laser light beam, and the second electric signal is converted to, data collecting card receives the first electric signal and the second electric signal, signal transacting list
Member is handled the signal in data collecting card, and display unit shows odentoschim pattern.
That is, by the way that laser is radiated at into dental surface, ultrasonic wave is motivated by thermoelastic effect, utilizes the lossless inspection of ultrasonic wave
The principle of survey, be diagnosed to be in tooth hidden splits.
In order to be better understood from above-mentioned technical proposal, below in conjunction with Figure of description and specific embodiment to upper
Technical scheme is stated to be described in detail.
Embodiment 1：
Embodiment 1 provides a kind of device for detecting odentoschim, as shown in figure 1, described device includes：Laser 1, light splitting
Mirror 2, the first lens 4, tooth 7, adaptive laser interferometer 8, the first photodetector 5, the second photodetector 10, data are adopted
Truck 6, signal processing unit 11, display unit 12.
The laser 1 sends laser.
The laser is divided into first laser light beam and second laser light beam by the spectroscope 2.
First lens 4 are focused to the first laser light beam, the first laser light beam irradiation after focusing
To the surface of tooth 7.
The adaptive laser interferometer 8 receives the first laser light beam and exposes to caused reflection after the tooth 7
Signal.
First photodetector 5 receives the optical signal after the adaptive laser interferometer 8, and is converted to the
One electric signal.
Second photodetector 10 receives the second laser light beam, and is converted to the second electric signal.
The data collecting card 6 is connected with first photodetector 5 and second photodetector 10, the number
First electric signal and second electric signal are received according to capture card 6.
The signal processing unit 11 is connected with the data collecting card 6, and the signal processing unit 11 is to the data
Signal in capture card 6 is handled.
The display unit 12 is connected with the signal processing unit 11, and the display unit 12 shows odentoschim pattern.
Embodiment 1 motivates ultrasonic wave by the way that laser is radiated at into dental surface, by thermoelastic effect, using ultrasonic wave without
Damage the principle of detection, can intuitively be diagnosed to be in tooth it is hidden split, and during whole diagnosis between detection device and tooth without connecing
Touch, detection process is painless.Because the collimation of laser, laser can flexibly move in dental surface, by encouraging the change of point to change
Become the incoming position and angle of ultrasonic wave, the comprehensive detection to hidden crackle in tooth can be achieved, improve detection efficiency.
Embodiment 2：
Embodiment 2 provides a kind of device for detecting odentoschim, as shown in Fig. 2 described device includes：Laser 1, light splitting
Mirror 2, attenuator 3, the first lens 4, the first photodetector 5, data collecting card 6, tooth 7, adaptive laser interferometer 8,
Two lens 9, the second photodetector 10, signal processing unit 11, display unit 12.
The laser 1 sends laser.
The laser is divided into first laser light beam and second laser light beam by the spectroscope 2.
First lens 4 are focused to the first laser light beam, the first laser light beam irradiation after focusing
To the surface of tooth 7.
The adaptive laser interferometer 8 receives the first laser light beam and exposes to caused reflection after the tooth 7
Signal.
First photodetector 5 receives the optical signal after the adaptive laser interferometer 8, and is converted to the
One electric signal.
The attenuator 3 receives the second laser light beam.
Second lens 9 receive the second laser light beam after the attenuator 3, and to the second laser
Light beam is focused, and the second laser light beam after focusing exposes to second photodetector 10.
Second photodetector 10 receives the second laser light beam, and is converted to the second electric signal.
The data collecting card 6 is connected with first photodetector 5 and second photodetector 10, the number
First electric signal and second electric signal are received according to capture card 6.
The signal processing unit 11 is connected with the data collecting card 6, and the signal processing unit 11 is to the data
Signal in capture card 6 is handled.
The display unit 12 is connected with the signal processing unit 11, and the display unit 12 shows odentoschim pattern.
Wherein, the incident power densities of the laser are less than or equal to 100MW/cm2。
The laser 1 is Nd:YAG laser.
The Nd:The wavelength for the laser that YAG laser is sent is 266nm, pulsewidth 7ns, single pulse energy 2mJ, again
Complex frequency is 10Hz.
The energy of the first laser light beam is the 90%-98% of the laser gross energy, the second laser light beam
Energy is the 2%-10% of the laser gross energy.Preferably, the energy of the first laser light beam is the laser gross energy
95%, the energy of the second laser light beam is the 5% of the laser gross energy.
The first laser light beam is focused to wide 0.1-0.3mm, long 2-4mm line source by first lens 4.It is preferred that
, the first laser light beam is focused to wide 0.2mm, long 3mm line source by first lens 4.
First photodetector 5, second photodetector 10 select avalanche photodide or photomultiplier transit
Pipe.
Laser 1 described in embodiment 2 is Nd:YAG laser, the main laser for launching low-lying level, in the tooth
The surface actuator ultrasonic wave of tooth 7.Specifically, Nd:YAG laser inspire wavelength be 266nm, pulsewidth 7ns, single pulse energy be
2mJ, the laser that repetition rate is 10Hz are as ultrasonic excitation source, and wherein beam of laser (95% energy) is through spectroscope 2 and first
After lens 4 by Laser Focusing be wide 0.1mm, long 3mm line source, it is ensured that the incident power densities of laser are less than or equal to 100MW/
cm2, so that laser can in tooth nondestructively excitation ultrasound.
In an experiment, the shot point of initial time is located at the both sides of odentoschim with sensing point, and sensing point is fixed, and it is sat
Mark is still set to x=0mm.In scanning process, shot point is crossed crackle and moved to sensing point.Ultrasonic signal passes through the tooth 7
Afterwards, reflected signal is received by the adaptive laser interferometer 8, demodulated to be transferred to first photodetector 5 with electricity
Swaging formula exports, and is sent to the data collecting card 6, then after the signal processing unit 11, odentoschim pattern will be in institute
Real-time display on the screen of display unit 12 is stated to come out.Another beam of laser (5% energy) is after the attenuator 3 by described
Second lens 9 focus on, and are then received by second photodetector 10, are converted to electric signal and are sent into the data collecting card 6,
Trigger collection as ultrasonic signal.
Embodiment 2 motivates ultrasonic wave by the way that laser is radiated at into dental surface, by thermoelastic effect, using ultrasonic wave without
Damage the principle of detection, can intuitively be diagnosed to be in tooth it is hidden split, and during whole diagnosis between detection device and tooth without connecing
Touch, detection process is painless.Because the collimation of laser, laser can flexibly move in dental surface, by encouraging the change of point to change
Become the incoming position and angle of ultrasonic wave, the comprehensive detection to hidden crackle in tooth can be achieved, improve detection efficiency.This
Outside, by controlling the incident power densities of laser, ensure laser can in tooth nondestructively excitation ultrasound, so as to nondestructively to tooth
Tooth is detected.
A kind of device for detection odentoschim that the utility model embodiment provides comprises at least following technique effect：
1st, in the embodiment of the present application, laser is sent by laser, spectroscope by laser be divided into first laser light beam and
Second laser light beam, the first lens are focused to first laser light beam, and the first laser light beam after focusing exposes to tooth table
Face, adaptive laser interferometer receive first laser light beam and expose to caused reflected signal after tooth, the first photodetector
The optical signal after adaptive laser interferometer is received, and is converted to the first electric signal, the second photodetector receives second
Laser beam, and the second electric signal is converted to, data collecting card receives the first electric signal and the second electric signal, signal processing unit
Signal in data collecting card is handled, display unit shows odentoschim pattern.Laser is radiated at by the embodiment of the present application
Dental surface, ultrasonic wave is motivated by thermoelastic effect, using the principle of Ultrasonic Nondestructive, can intuitively be diagnosed to be tooth
In it is hidden split, and contactless between detection device and tooth during whole diagnosis, detection process is painless.
2nd, in the embodiment of the present application, because the collimation of laser, laser can flexibly move in dental surface, excitation is passed through
The change of point changes the incoming position and angle of ultrasonic wave, and the comprehensive detection to hidden crackle in tooth can be achieved, improve inspection
Survey efficiency.
3rd, in the embodiment of the present application, by controlling the incident power densities of laser, ensure that laser can be lossless in tooth
Ground excitation ultrasound, so as to nondestructively be detected to tooth.
It should be noted last that above embodiment is only illustrating the technical solution of the utility model rather than limit
System, although the utility model is described in detail with reference to example, it will be understood by those within the art that, can be right
The technical solution of the utility model is modified or equivalent substitution, without departing from the spirit and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (10)
1. a kind of device for detecting odentoschim, it is characterised in that described device includes：
Laser, the laser send laser；
The laser is divided into first laser light beam and second laser light beam by spectroscope, the spectroscope；
First lens, first lens are focused to the first laser light beam, the first laser light beam after focusing
Expose to the dental surface；
Adaptive laser interferometer, after the adaptive laser interferometer reception first laser light beam exposes to the tooth
Caused reflected signal；
First photodetector, first photodetector receive the optical signal after the adaptive laser interferometer,
And be converted to the first electric signal；
Second photodetector, second photodetector receives the second laser light beam, and is converted to the second electric signal；
Data collecting card, the data collecting card are connected with first photodetector and second photodetector, institute
State data collecting card and receive first electric signal and second electric signal；
Signal processing unit, the signal processing unit are connected with the data collecting card, and the signal processing unit is to described
Signal in data collecting card is handled；
Display unit, the display unit are connected with the signal processing unit, and the display unit shows odentoschim pattern.
2. the device of detection odentoschim according to claim 1, it is characterised in that described device also includes：
Attenuator, the attenuator receive the second laser light beam；
Second lens, second lens receive the second laser light beam after the attenuator, and to described second
Laser beam is focused, and the second laser light beam after focusing exposes to second photodetector.
3. the device of detection odentoschim according to claim 1, it is characterised in that the incident power densities of the laser are small
In equal to 100MW/cm2。
4. the device of detection odentoschim according to claim 1, it is characterised in that the laser is Nd:YAG laser
Device.
5. the device of detection odentoschim according to claim 4, it is characterised in that the Nd:What YAG laser was sent swashs
The wavelength of light is 266nm, pulsewidth 7ns, single pulse energy 2mJ, repetition rate 10Hz.
6. the device of detection odentoschim according to claim 1, it is characterised in that the energy of the first laser light beam is
The 90%-98% of the laser gross energy, the energy of the second laser light beam are the 2%-10% of the laser gross energy.
7. the device of detection odentoschim according to claim 6, it is characterised in that the energy of the first laser light beam is
The 95% of the laser gross energy, the energy of the second laser light beam are the 5% of the laser gross energy.
8. the device of detection odentoschim according to claim 1, it is characterised in that first lens swash described first
Light light beam is focused to wide 0.1-0.3mm, long 2-4mm line source.
9. the device of detection odentoschim according to claim 8, it is characterised in that first lens swash described first
Light light beam is focused to wide 0.2mm, long 3mm line source.
10. the device of detection odentoschim according to claim 1, it is characterised in that first photodetector, described
Second photodetector selects avalanche photodide or photomultiplier.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720002768.1U CN206714746U (en) | 2017-01-03 | 2017-01-03 | A kind of device for detecting odentoschim |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720002768.1U CN206714746U (en) | 2017-01-03 | 2017-01-03 | A kind of device for detecting odentoschim |
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| CN206714746U true CN206714746U (en) | 2017-12-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562653A (en) * | 2018-07-16 | 2018-09-21 | 赵永生 | It is a kind of to lure the pillar porcelain insulator detection device and detection method shaken based on laser |
| CN111557686A (en) * | 2020-03-05 | 2020-08-21 | 天津医科大学口腔医院 | Method for vacuum-adding contrast agent to permeate cracks of cryptorrhoea teeth |
| CN112824844A (en) * | 2019-11-20 | 2021-05-21 | 哈尔滨工业大学 | Large-scale high-speed rotation equipment assembly clamping force measuring device based on laser ultrasound |
| CN113367829A (en) * | 2021-06-03 | 2021-09-10 | 苏州苏穗绿梦生物技术有限公司 | Tooth detection system and detection method based on ultrasonic waves |
-
2017
- 2017-01-03 CN CN201720002768.1U patent/CN206714746U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562653A (en) * | 2018-07-16 | 2018-09-21 | 赵永生 | It is a kind of to lure the pillar porcelain insulator detection device and detection method shaken based on laser |
| CN112824844A (en) * | 2019-11-20 | 2021-05-21 | 哈尔滨工业大学 | Large-scale high-speed rotation equipment assembly clamping force measuring device based on laser ultrasound |
| CN111557686A (en) * | 2020-03-05 | 2020-08-21 | 天津医科大学口腔医院 | Method for vacuum-adding contrast agent to permeate cracks of cryptorrhoea teeth |
| CN111557686B (en) * | 2020-03-05 | 2023-08-18 | 天津医科大学口腔医院 | Method for vacuum-adding contrast agent to penetrate cracks in hidden cracked teeth |
| CN113367829A (en) * | 2021-06-03 | 2021-09-10 | 苏州苏穗绿梦生物技术有限公司 | Tooth detection system and detection method based on ultrasonic waves |
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