CN102485163A - System for diagnosing dental calculus by using fluorescence spectrum - Google Patents
System for diagnosing dental calculus by using fluorescence spectrum Download PDFInfo
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- CN102485163A CN102485163A CN201010572919XA CN201010572919A CN102485163A CN 102485163 A CN102485163 A CN 102485163A CN 201010572919X A CN201010572919X A CN 201010572919XA CN 201010572919 A CN201010572919 A CN 201010572919A CN 102485163 A CN102485163 A CN 102485163A
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Abstract
The invention relates to a dental calculus fluorescence diagnosis system using an excitation light source, which comprises a stabilized voltage supply 1, a light-emitting diode 2, a lens 3, a fiber coupler 4, a fiber 5, a fiber fixer 6, a sample 7, a fiber 8, an interferometric filter 9, a fiber 10, a spectrometer 11 and a computer 12. The method for diagnosing a dental calculus comprises the following steps: acquiring a light spectrum of the measured sample by using the spectrometer; calculating area S1 under 625-635nm fluorescence curve and area S2 under 665-675nm fluorescence curve; calculating R=S2/S1; and enabling R=0.3 as a measurement threshold, R>0.3 as a dental calculus, R<0.3 as a normal dental tissue, and R to be proportional to dental calculus coverage area within illumination range. The invention has the advantages of simple structure, high diagnosis accuracy and the like.
Description
Technical field
The present invention relates to the system of the HONGGUANG induced fluorescence spectroscopic diagnostics dental calculus of a kind of 630nm of utilization, belong to the laser spectrum tech field.
Background technology
Dental calculus is the important paathogenic factor that causes periodontal disease, just must effectively remove dental calculus and bacterial plaque so will thoroughly treat periodontal disease.Successful scaling or scrape is controlled needs sensitive diagnostic means do guidance, thereby avoids damaging normal dental tissue.At present, serumal calculus mainly leans on doctor's clinical experience to diagnose, particularly the calculus of periodontal pocket depths some be penetrated in the cementum, the doctor is difficult to judge whether to proceed scaling with naked eyes and sensation.Because lack sensitive objectively diagnostic means, the treatment of periodontal disease has received and having had a strong impact on, and therefore is badly in need of developing the novel diagnostic techniques of efficient and sensible.Many advantages such as optical diagnostics has fast, sensitive, harmless.People just find that tooth has sent the light that very strong green fluorescence dental calculus has sent salmon pink under the exciting of blue light before 70 years, but early stage research mainly concentrates on the composition that utilizes the fluorescence analysis dental calculus.People just begin fluorescence diagnosis is used for the diagnosis of dental calculus up to date.Though fluorescence diagnosis is compared with traditional diagnostic method and is greatly improved; But present diagnosis mainly directly utilizes the size of reflected light or fluorescence intensity to diagnose dental calculus; Measured condition effect easily; And great majority research is in the laboratory research stage, lacks the special-purpose fluorescing system research that is suitable for the dental calculus diagnosis.
Summary of the invention
The object of the present invention is to provide a kind of system that utilizes fluorescence spectrum diagnosis dental calculus.
The technical scheme that adopts is:
A kind of system that utilizes fluorescence spectrum diagnosis dental calculus comprises regulated power supply, light emitting diode, lens, fiber coupler, optical fiber, fibre-optical fixator, sample, optical fiber, interferometric filter, optical fiber, spectrogrph and computer.Light emitting diode is supplied power by regulated power supply; The exciting light of 630 nm that light emitting diode sends to optical fiber, is transferred to testing sample surface through Transmission Fibers through Lens Coupling; The fluorescence that sample sends passes through fiber-optic transfer; Arrive the optical fiber of fiber spectrometer through a long wave pass filter; Computer is connected with spectrogrph, the data of spectrogrph is handled, and provided diagnostic result automatically; Device makes the Transmission Fibers of excitation source placed in the middle, around root fluorescence Transmission Fibers is evenly distributed on.
Detection method of the present invention: the spectrum that obtains testing sample through spectrogrph; Calculate the area S under 625nm ~ 635 nm fluorescence curves
1With the area S under 665 ~ 675 nm fluorescence curves
2Calculate R=S
2/ S
1In addition R=0.3 is as measurement threshold, R>0.3 be dental calculus,<0.3 is the normal teeth tissue to R, and R and dental calculus area coverage are directly proportional in illumination range.
Advantages such as that the present invention has is simple in structure, diagnosis is accurate.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
A kind of system that utilizes fluorescence spectrum diagnosis dental calculus comprises regulated power supply 1, light emitting diode 2, lens 3, fiber coupler 4, optical fiber 5, fibre-optical fixator 6, sample 7, optical fiber 8, interferometric filter 9, optical fiber 10, spectrogrph 11 and computer 12.Light emitting diode 2 is by regulated power supply 1 power supply; The exciting light of 630 nm that light emitting diode sends is coupled to optical fiber 3 through lens 2, is transferred to testing sample 7 surfaces through Transmission Fibers 3; The fluorescence that sample 7 sends is through optical fiber 8 transmission; Arrive the optical fiber 10 of fiber spectrometer 11 through a long wave pass filter 9; Computer 12 is connected with spectrogrph, can handle the data of spectrogrph, and provide diagnostic result automatically.
Detection method of the present invention: the spectrum that obtains testing sample through spectrogrph; Under the exciting light of 630 nm, to compare with normal tooth, near the fluorescence peak of dental calculus 670 nm is far above normal tooth; For given material; The power of fluorescence is not only relevant with the test substance fluorescence efficiency; Also relevant with the measuring conditions such as intensity of measuring distance, light source; Therefore, only rely on fluorescence intensity to be difficult to provide the quantitative criterion of diagnosis dental calculus, the present invention adopts near 670 nm adnexa fluorescence intensities and 630 nm fluorescence intensity ratio as the standard of diagnosis dental calculus; In order to reduce noise, 630 nm adnexa fluorescence intensities are with the area S under 625nm ~ 635 nm fluorescence curves
1Representative, the area S under 665 ~ 675 nm fluorescence curves
2Calculate R=S
2/ S
1R=0.3 is as measurement threshold, R>0.3 be dental calculus,<0.3 is the normal teeth tissue to R, and R and dental calculus area coverage are directly proportional in illumination range.
Claims (1)
1. LIF dental calculus diagnostic system; Comprise regulated power supply, light emitting diode, lens, fiber coupler, optical fiber, fibre-optical fixator, sample, optical fiber, interferometric filter, optical fiber, spectrogrph and computer, it is characterized in that described light emitting diode is electrically connected with regulated power supply; The exciting light of 630 nm that light emitting diode sends to optical fiber, is transferred to testing sample surface through Transmission Fibers through Lens Coupling; The fluorescence that sample sends passes through fiber-optic transfer; Arrive the optical fiber of fiber spectrometer through a long wave pass filter; Computer is connected with spectrogrph.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010572919XA CN102485163A (en) | 2010-12-06 | 2010-12-06 | System for diagnosing dental calculus by using fluorescence spectrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010572919XA CN102485163A (en) | 2010-12-06 | 2010-12-06 | System for diagnosing dental calculus by using fluorescence spectrum |
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| CN102485163A true CN102485163A (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010572919XA Pending CN102485163A (en) | 2010-12-06 | 2010-12-06 | System for diagnosing dental calculus by using fluorescence spectrum |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105852790A (en) * | 2016-04-26 | 2016-08-17 | 郑洪� | Endoscopic device and endoscope |
| CN106264768A (en) * | 2016-08-27 | 2017-01-04 | 北京希澈科技有限公司 | A kind of dental calculus detector and detection method |
| CN106798542A (en) * | 2016-06-05 | 2017-06-06 | 郑洪� | Endoscopic diagnosis support device and endoscope |
| CN112438703A (en) * | 2019-08-30 | 2021-03-05 | 广达电脑股份有限公司 | Method and device for distinguishing dental plaque from dental calculus |
| CN113456281A (en) * | 2021-06-28 | 2021-10-01 | 深圳市妇幼保健院 | Tooth cleanliness detection method based on periodontal scaling device and related equipment |
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| US6384917B1 (en) * | 1997-03-12 | 2002-05-07 | Boris Fradkin | Tooth color measurement system |
| CN1498091A (en) * | 2001-03-21 | 2004-05-19 | System and method for detecting dental tartar | |
| CN101214141A (en) * | 2007-12-29 | 2008-07-09 | 哈尔滨工业大学 | Device for real time diagnosing dental calculus |
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2010
- 2010-12-06 CN CN201010572919XA patent/CN102485163A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6384917B1 (en) * | 1997-03-12 | 2002-05-07 | Boris Fradkin | Tooth color measurement system |
| CN1498091A (en) * | 2001-03-21 | 2004-05-19 | System and method for detecting dental tartar | |
| CN101214141A (en) * | 2007-12-29 | 2008-07-09 | 哈尔滨工业大学 | Device for real time diagnosing dental calculus |
Non-Patent Citations (1)
| Title |
|---|
| 秦艳利等: "利用高斯函数拟合荧光光谱诊断龈下结石的研究", 《光电子·激光》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105852790A (en) * | 2016-04-26 | 2016-08-17 | 郑洪� | Endoscopic device and endoscope |
| CN106798542A (en) * | 2016-06-05 | 2017-06-06 | 郑洪� | Endoscopic diagnosis support device and endoscope |
| CN106264768A (en) * | 2016-08-27 | 2017-01-04 | 北京希澈科技有限公司 | A kind of dental calculus detector and detection method |
| CN106264768B (en) * | 2016-08-27 | 2018-08-03 | 北京希澈科技有限公司 | A kind of calculus dentalis detector and detection method |
| CN112438703A (en) * | 2019-08-30 | 2021-03-05 | 广达电脑股份有限公司 | Method and device for distinguishing dental plaque from dental calculus |
| CN113456281A (en) * | 2021-06-28 | 2021-10-01 | 深圳市妇幼保健院 | Tooth cleanliness detection method based on periodontal scaling device and related equipment |
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Application publication date: 20120606 |