KR20030047139A - Optical caries activity test - Google Patents
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- KR20030047139A KR20030047139A KR1020010077545A KR20010077545A KR20030047139A KR 20030047139 A KR20030047139 A KR 20030047139A KR 1020010077545 A KR1020010077545 A KR 1020010077545A KR 20010077545 A KR20010077545 A KR 20010077545A KR 20030047139 A KR20030047139 A KR 20030047139A
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- 208000002925 dental caries Diseases 0.000 title claims description 58
- 230000000694 effects Effects 0.000 title claims description 34
- 238000012360 testing method Methods 0.000 title abstract description 18
- 230000003287 optical effect Effects 0.000 title abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910052786 argon Inorganic materials 0.000 claims abstract description 18
- 238000010998 test method Methods 0.000 claims abstract description 12
- 210000003298 dental enamel Anatomy 0.000 claims abstract description 4
- 239000011521 glass Substances 0.000 claims abstract description 4
- 230000003902 lesion Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 abstract description 2
- 230000004913 activation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000001580 bacterial effect Effects 0.000 description 5
- 241000186660 Lactobacillus Species 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 206010027146 Melanoderma Diseases 0.000 description 2
- 230000037123 dental health Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 229940039696 lactobacillus Drugs 0.000 description 2
- 210000003296 saliva Anatomy 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012136 culture method Methods 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000005115 demineralization Methods 0.000 description 1
- 230000002328 demineralizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004334 fluoridation Methods 0.000 description 1
- 208000014617 hemorrhoid Diseases 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/48—Diagnostic techniques
- A61B6/485—Diagnostic techniques involving fluorescence X-ray imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/51—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for dentistry
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/90—Determination of colour characteristics
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- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
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- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
Description
본 발명은 치아우식활성검사법에 관한 것으로, 보다 구체적으로는 레이저 형광(螢光)을 이용한 광학적 치아우식활성검사법에 관한 것이다.The present invention relates to a dental caries activity test method, and more particularly to an optical dental caries activity test method using laser fluorescence.
치아우식 활성검사법이란 개개인의 치아에 발생하는 충치, 즉 치아우식의 발생가능성 정도를 추정하기 위해 사용하는 방법으로, 각 개인의 우식활성도를 측정하여 이를 자료화하고, 또한 치아우식증 발생 가능성이 높은 사람들만을 선별하여 집중적으로 치아우식증 예방 사업을 시행할 경우 그 사업의 효율성을 극대화할 수 있을 것이다.Dental caries activity test is a method used to estimate the degree of dental caries, or dental caries, that occur in individual teeth.It measures and documentes the caries activity of each individual, and also people who are highly likely to develop dental caries. Selecting bays and conducting intensive dental caries prevention program will maximize the efficiency of the project.
현재 국가에서는 국민들의 치아건강을 위해 치아우식증을 예방하는데 여러가지 사업을 추진하고 있으나 수돗물 불소화 사업등은 불특정 다수를 위한 치아우식예방사업이므로 치아우식활성이 낮거나 구강위생상태가 양호한 사람들, 즉 치아우식증 예방을 위한 프로그램이 필요없는 사람들에게도 무조건 불소를 공급하는 방식이므로 약물적 부작용 초래는 물론, 비용면에서도 그 효율성이 현저히 떨어질 수 밖에 없는 것이다.Currently, the country is promoting various projects to prevent dental caries for the public's dental health, but the tap water fluoridation project is a dental caries prevention project for the unspecified majority. Fluoride is supplied unconditionally to those who do not need a program for the drug, so the side effect of the drug, as well as the cost is inevitably reduced.
이처럼 치아우식활성도를 측정하기 위한 검사법은 바람직한 국가시책의 시행을 위해서도 매우 중요한 방법이라 아니할 수 없으며, 상기 치아우식활성검사방법으로는 1940년대 스나이더(Snyder)가 고안한 스나이더검사법이 현재까지 사용되고 있으며, 근래에는 이 방법을 더욱 개선시킨 개량형 스나이더 검사법(Cariestat)을 주로 사용하고 있다.As such, the method for measuring dental caries activity is very important for the implementation of a desirable national policy. The dental caries activity test method has been used to date by the Snyder test devised by Snyder in the 1940s. Recently, the improved Snyder method (Cariestat), which is a further improvement of this method, is mainly used.
상기와 같은 검사법들은 구강내 우식증을 유발하는 주된 산 생성 세균이 락토바킬러스(Lactobacillus)라는 전제하게 고안된 것이나, 최근에는 초기 우식병소의 유발에는 무탄스 스트랩토코시(Mutance streptococci)이 역할이 더 크고,락토바킬러스는 우식병소의 진행에 더 관계한다는 사실이 밝혀지면서 무탄스 스트랩토코시만 선택적으로 배양하여 측정하는 우식활성검사법(Cariescreen SM)이 개발되어 소개되고 있다.Assay as described above are more primary acid generating bacteria Lactobacillus Bar Killers (Lactobacillus) premise that, in recent years, caused in this role no Tansu Strap Toko City (Mutance streptococci) in early caries lesions would Designed called to cause my caries, oral As it turns out that Lactobacillus is more related to the progression of caries lesions, Cariescreen SM has been developed and introduced to selectively measure mutans straptococci.
그러나 상기 기재된 방법은 모두 24시간 동안 구강내 세균을 배양하여야 하고 타액 채취 및 세균배양을 위한 기본적인 재료와 장비가 필요하며, 검사비용이 고가이고 검사과정이 매우 복잡한 단점을 갖는 것이다. 또한 검사결과의 판독이 검사 당일에 이루어 지지 못하고 상당한 시간을 필요로 한다는 단점을 갖는 것이다.However, all of the methods described above have the disadvantages of culturing oral bacteria for 24 hours, requiring basic materials and equipment for saliva collection and bacterial culture, and having high test cost and very complicated test process. In addition, there is a disadvantage that the reading of the test result is not made on the test day and requires a considerable time.
특히 위와 같은 기존의 우식활성검사법들이 갖는 가장 큰 단점은 오직 구강내에 존재하는 세균의 활성도만 측정하므로써 실제 치아우식에 관여하는 다른 요소들, 즉 개개 치아의 석회화(광화도), 타액의 성분 및 점주도 등을 배재한 상태이므로 검사의 신뢰도와 타당성에 이의가 제기될 수 있는 폐단을 갖는 것이다.In particular, the biggest disadvantage of the conventional caries activity test is that only by measuring the activity of bacteria present in the oral cavity, other factors involved in actual dental caries, namely calcification of individual teeth, saliva composition and storekeeper Excludes the province, etc., so it has a closure that can challenge the reliability and validity of the test.
본 발명은 종래의 치아우식활성검사방법이 갖는 폐단을 해결하기 위하여 고안된 것으로, 치아의 법랑질에 아르곤 레이저광선을 조사할 경우 발생하는 형광특성을 이용하되 치아표면의 변화를 색조(色調)의 차이로 변환하여 측정하므로써 각 개개인의 광화정도와 세균의 활성도라는 우식발생의 요인들이 복합적으로 작용하여 초래하는 최초의 치아표면의 변화를 포착하여 우식발생의 가능성을 추정할 수 있는 획기적인 치아우식활성검사법을 제공하기 위한 것이다.The present invention is designed to solve the lungs of the conventional dental caries activity test method, using the fluorescence characteristics generated when irradiated with argon laser light on the tooth enamel, the change in the surface of the teeth as a difference in color tone Provides a breakthrough dental caries activity test that can estimate the possibility of caries by capturing the initial changes in the tooth surface caused by the combination of carcinogenic factors such as mineralization and bacterial activity of each individual. It is to.
도 1 - 본 발명 치아우식활성검사를 위한 장치의 개략도.1-Schematic diagram of a device for testing dental caries activity of the present invention.
*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1: 아르곤레이저장치(Argon laser beam generator)1: Argon laser beam generator
2: 광섬유(Optic fiber)2: optical fiber
3: 필터렌즈(filter lens)3: filter lens
A: 치아A: Tooth
상기 목적을 달성하기 위한 본 발명을 첨부한 도면에 의해 상세히 설명하면 다음과 같다.When described in detail by the accompanying drawings, the present invention for achieving the above object is as follows.
도 1은 본 발명 치아우식활성검사를 위한 장치의 개략적인 구성을 보이기 위한 것으로, 본 발명은 치아의 법랑질에 아르곤 레이저장치로 부터 발생한 아르곤 레이저광선을 조사하고, 상기 아르곤 레이저광선의 형광특성을 이용하여 해당치아의 표면에서 반사된 광선을 필터렌즈로 걸러 색조의 차이로 변환하여 치아우식정도를 측정하게 된다.Figure 1 is to show a schematic configuration of the device for the dental caries activity test of the present invention, the present invention is to irradiate the argon laser beam generated from the argon laser device to the enamel of the tooth, using the fluorescence characteristics of the argon laser beam The degree of tooth caries is measured by converting the light reflected from the surface of the tooth into the difference in color tone by filtering the filter lens.
이를 위해 본 발명에서는 치아에서 가장 효과적으로 형광을 유발하는 광원의 선택, 건전한 치질과 우식부위의 형광색조를 효과적으로 대비하여 구분해 내는 필터렌즈의 적절한 선택, 그리고 관찰된 우식치아의 수를 임상적으로 분류하여 기존의 세균배양법에 의한 우식활성도와 같은 진단학적 민간도와 타당도를 갖는 우식활성평가표의 작성 등이 본 발명에서 해결하고자 하는 매우 중요한 기술적 과제이다.To this end, the present invention clinically classifies the selection of a light source that most effectively induces fluorescence in the teeth, the appropriate selection of filter lenses to effectively distinguish between the fluorescence hue of healthy hemorrhoids and caries, and the number of observed caries teeth. Therefore, the preparation of a caries activity evaluation table having diagnostic folkness and validity such as caries activity by conventional bacterial culture method is a very important technical problem to be solved in the present invention.
따라서 본 발명자는 본 발명을 위한 광원으로 인체엔 무해하고 안정적인 광선의 조사가 가능한 450-500nm 가시광선 영역의 아르곤 레이저광선을 사용하였으며, 치아의 건전한 치질부위과 우식부위의 형광색조를 효과적으로 대비하여 구분하기 위한 필터렌즈로는 520nm 이상의 파장만을 통과시키는 유리필터를 사용하였다.Therefore, the present inventors used an argon laser beam of 450-500nm visible light region that is harmless to the human body as a light source for the present invention and can stably radiate light. For the filter lens for the glass filter that passes only a wavelength of 520nm or more was used.
따라서 치아에 조사된 후 반사된 아르곤 레이저광선이 상기 필터렌즈를 통과할 때 건전한 치질부위와 눈으로는 관찰할 수 없었던 미세한 치아의 표면 탈회가 초래된 초기 우식병소간의 광학적 특성이 드러나게 된다. 즉 아르곤 레이저광선의 형광현상의 차이로 인해 병소부위만 검은점으로 뚜렷히 관찰되어지는 것이다.Therefore, when the argon laser beam reflected on the tooth passes through the filter lens, the optical characteristics between the healthy hemorrhoidal site and the early caries lesion that caused surface demineralization of the fine tooth which could not be observed by the eye are revealed. In other words, due to the difference in fluorescence of the argon laser beam, only the lesion site is clearly observed as a black spot.
상기 본 발명 치아우식활성검사방법을 실시예에 의해 좀 더 상세히 설명하면 다음과 같다.The present invention is described in more detail by the dental caries activity test method as follows.
실시예Example
본 발명 치아우식활성검사를 위해 488nm연속파장을 갖는 아르곤레이저광선을 발생시키기 위한 아르곤레이저 발생장치와 상기 레이저 발생장치로 부터 얻어진 레이저광선을 치아에 조사하기 위한 광섬유로는 500μm 직경의 광섬유를 사용하였으며, 0.6W의 출력으로 치아 협면과 인접면에 레이저광선을 조사하였다.For the dental caries activity test, an argon laser generator for generating an argon laser beam having a 488 nm continuous wavelength and an optical fiber having a diameter of 500 μm were used as an optical fiber for irradiating a laser beam obtained from the laser generator. , Laser light was irradiated on the buccal and proximal surfaces with a power of 0.6 W.
이때 치아의 표면에서 반사되는 광선을 520-540nm의 빛만 투과시키는 주황색의 유리 렌즈(filter)를 사용하여 형광상의 검은점, 즉 초기 치아우식병소를 관찰하여 각 개인 당 초기우식병소가 관찰된 치아의 수를 집계한다.At this time, using the orange glass lens which transmits the light reflected from the surface of the tooth only 520-540nm light, the black spot of fluorescence, that is, the initial carious lesion, was observed. Count the numbers.
다음 상기 치아들의 우식활성도를 4단계로 나누고 관찰된 초기 우식병소의 치아수를 집계하여 2개까지 관찰된 경우를 "경도의 우식활성도"로, 3-5개가 관찰된 경우를 "중등도의 우식활성도"로, 6-9개가 관찰된 경우는 "심한 우식활성도", 그리고 10개 이상인 경우는 "매우 심한 우식활성도"로 구분한다.Next, the caries activity of the teeth is divided into four stages, and the number of teeth of the initial caries lesions observed is counted up to two cases of "hard caries activity" and 3-5 cases of "medium caries activity". ", 6-9 were observed as" severe caries activity "and more than 10 cases are classified as" very severe caries activity ".
이처럼 본 발명은 단순히 육안으로는 관찰되지 않은 치아의 초기우식병소의 갯수를 하나하나 관찰할 수 있으므로 전체적으로 치아우식이 발생될 확률의 높고낮음을 파악할 수 있게 되는 것이다.As such, the present invention can simply observe the number of initial caries lesions of the teeth, which are not observed with the naked eye, one by one, so that the overall probability of occurrence of dental caries is high and low.
즉 전체 치아의 갯수에 대한 초기 우식병소가 발견된 치아의 갯수의 비는 기존의 세균배양에 의한 우식활성도와 매우 높은 상관관계를 가지고 있으므로, 상기 우식병소가 발견된 치아의 갯수가 전체치아의 갯수에 비해 높을 수록 개개인의 치아우식활성도가 높은 것이고, 반대의 경우는 개개인의 치아우식활성도는 낮은 것으로 판단할 수 있게되는 것이다.That is, the ratio of the number of teeth in which the initial caries lesions were found to the total number of teeth had a high correlation with the caries activity by conventional bacterial culture, so that the number of teeth in which the caries lesions were found was the total number of teeth. The higher the relative caries activity of the individual, the higher the caries activity of the individual can be judged to be low.
이처럼 본 발명은 즉 전체 치아의 갯수에 대한 초기 우식병소가 발견된 치아의 갯수의 비를 비교하는 방식이므로 새로운 치아 우식활성검사법으로서의 신뢰도와 타당성이 매우 높은 것이며, 시약과 세균배양을 통해 각 개개인의 치아우식활성도를 측정하는 종래의 검사법에 비해 검사방법이 간단하고, 비용이 저렴하며, 안전하고, 시간이 많이 걸리지 않는다는 장점을 갖는 것이다.As such, the present invention is a method of comparing the ratio of the number of teeth found to the initial caries lesion to the total number of teeth, and thus the reliability and validity of the new dental caries activity test method are very high. Compared with the conventional test method for measuring dental caries activity, the test method is simple, inexpensive, safe, and does not take much time.
또한 본 발명은 각 개인의 치아우식증 발생가능성을 간단히 측정, 추정할 수 있는 새로운 진단학적 지표를 개발, 제시하므로써 향후 임상적으로도 물론, 국가적 차원의 국민치아건강예방사업을 효율적으로 운영할 수 있는 기본 자료를 제공할 수 있으며, 특히 치아우식증 발생확율이 높은 개인들을 선별해서 예방사업을 집중적으로 그리고 지속적으로 전개해 나가므로써 예산과 시간을 최대한 줄일 수 있게 될 것이다.In addition, the present invention by developing and presenting a new diagnostic indicator that can easily measure and estimate the likelihood of dental caries in each individual can effectively operate the national dental health prevention project at the clinical and national level in the future Basic data can be provided, and the budget and time will be saved as much as possible by intensively and continuously developing preventive projects by selecting individuals with a high probability of developing dental caries.
또 본 발명은 간단한 장치에 의해 치아우식활성검사가 이루어지므로 시약이나 세균 배양절차가 필요하지 않아 초기투자만 필요하고 지속적인 비용소요가 없어 경제적 가치가 높고, 이로인해 환자들의 비용부담을 줄일 수 있으며, 기존의 다른 방법에 비해 우수한 신뢰도를 주면서도 검사시간은 짧고 검사결과를 즉석에서 알 수 있는 효과를 갖는 매우 획기적인 발명인 것이다.In addition, since the dental caries activity test is performed by a simple device, no reagents or bacterial culture procedures are required, so only initial investment is required, and there is no continuous cost, and thus the economic value is high, thereby reducing the burden of patients. Compared with other conventional methods, the test time is short, and the test results are very innovative inventions with the effect of knowing the test results on the fly.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20210015208A (en) | 2019-08-01 | 2021-02-10 | 연세대학교 산학협력단 | Method of providing the information for predicting the effect of tooth whitening |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63315071A (en) * | 1987-06-18 | 1988-12-22 | Matsushita Electric Ind Co Ltd | Method and apparatus for preventing dental caries |
| JPH0871092A (en) * | 1994-09-09 | 1996-03-19 | Lion Corp | Initial dental caries detector |
| JPH0889478A (en) * | 1994-09-26 | 1996-04-09 | Life Tec Kenkyusho:Kk | Oral tissue observation apparatus |
| JPH1142242A (en) * | 1997-03-07 | 1999-02-16 | Kaltenbach & Voigt Gmbh & Co | Method and apparatus for examining tooth |
| JP2001299699A (en) * | 2000-03-17 | 2001-10-30 | Kaltenbach & Voigt Gmbh & Co | Device for identifying caries, plaque, bacterial infection, calculus, dental calculus, and other fluorescent material on tooth |
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2001
- 2001-12-08 KR KR1020010077545A patent/KR20030047139A/en not_active Application Discontinuation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63315071A (en) * | 1987-06-18 | 1988-12-22 | Matsushita Electric Ind Co Ltd | Method and apparatus for preventing dental caries |
| JPH0871092A (en) * | 1994-09-09 | 1996-03-19 | Lion Corp | Initial dental caries detector |
| JPH0889478A (en) * | 1994-09-26 | 1996-04-09 | Life Tec Kenkyusho:Kk | Oral tissue observation apparatus |
| JPH1142242A (en) * | 1997-03-07 | 1999-02-16 | Kaltenbach & Voigt Gmbh & Co | Method and apparatus for examining tooth |
| JP2001299699A (en) * | 2000-03-17 | 2001-10-30 | Kaltenbach & Voigt Gmbh & Co | Device for identifying caries, plaque, bacterial infection, calculus, dental calculus, and other fluorescent material on tooth |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210015208A (en) | 2019-08-01 | 2021-02-10 | 연세대학교 산학협력단 | Method of providing the information for predicting the effect of tooth whitening |
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