| 영문 | dental caries | 한글 | 충치, 치아우식증 |
|---|---|---|---|
| 설명 | 치아의 조직이 세균에 의해 용해내지 파괴되어 점차 통증을 나타내다가 치아를 잃게 되는 하나의 세균성 병이라고 볼 수 있다. 우리나라에서는 영구치의 충치 이환율이 약 80%로, 한 사람이 2~3개의 충치를 갖고 있는 셈이며, 구강 보건상태는 도시, 농촌지역, 해안지역 순으로 좋다. 원인은 치태(dental plaque)로서, 이것은 점액이나 탈락한 잇몸의 세포들, 그리고 세균 등으로 이루어져 있으며, 점착성이 강하여 치아 표면에 잘 부착되어 양치질이나 칫솔질로는 쉽게 제거되지 않는다. 치태에는 그물모양의 구조내에 막대균과 알균이 섞여 있는데, 특히 내산성 사슬알균과 젖산균이 많다. 현재 가장 유력한 충치의 원인균으로 밝혀지고 있는 이 사슬알균은 설탕을 합성하는 능력을 가지고 있으며, 덱스트란(dextran)을 형성한다고 생각되는데, 이 덱스트란은 물에 녹지 않으며 끈적거리는 점착성이 있어 치태가 치아표면에 잘 붙어 있게 한다. 이 사슬알균은 설탕으로부터 유기산과 치태를 형성한다. 치태 중에는 사슬알균이 생산하는 산이 정체되어 있기 때문에, 이 산에 의해 치아 표면의 단단한 석회질을 녹인다. 대부분이 인산칼슘으로 구성되어 있는 치아의 표면은 산에 의해 칼슘이 분해되어 치아 표면이 거칠어지면서 충치가 진행된다. 이와 같이 세균과 이 세균이 생산하는 화학적 물질에 의해서 충치가 생긴다는 가설을 세균-화학설이라고 한다. 충치의 발생원인에는 이 세균-화학설 이외에도 미생물이 치아표면의 유기질 부위에 먼저 부착되어 산을 만들어 파괴시킨다는 단백용해설도 있으며, 또한 산에 의하지 않는 치아의 파괴, 음식물이 원인이 된다고 주장하는 학설도 있다. 설탕은 충치를 가장 잘 유발시키는 물질로, 섭취 빈도에 따라 충치가 증가한다는 것이 증명되고 있다. 비타민은 충치 요인에 그리 중요하지 않은 것으로 보이며 음식물 내에 존재하는 칼슘과 인 또한 중요하지 않다고 한다. 유전적 소인은 중요한 역할을 하리라 생각되지만 증명하기가 어렵다. |
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| APS | adenosine phosphosulfate; American Pain Society; American Pediatric Society; American Physiological ... |
|---|---|
| AES | acetone-extracted serum; American Electroencephalographic Society; American Encephalographic Society... |
| NRRL | Northern Regional Research Laboratory |
| QRB | Quality Review Bulletin |
| DDS | damaged disc syndrome; dendrodendritic synaptosome; dental distress syndrome; depressed DNA synthesi... |
| NT | Northern Territory |
|---|---|
| NFM | Northern fowl mites |
| DGH | District General Hospital |
| DHAs | District Health Authorities |
| D.C. | District of Columbia |
| American Cancer Society | <address, organisation> American Cancer Society, National Headquarters, 1599 Clifton Road, NE, Atlanta, GA 30329 USA. Tel: 00 1 404 320-3333 (05 Feb 1998) |
|---|---|
| public utility district | (PUD) A publicly owned energy producer or distributor. PUDs operate as special government districts under the authority of elected commissions. They are not regulated by public utility commissions. (05 Dec 1998) |
| hospitals, district | Government-controlled hospitals which represent the major health facility for a designated geographic area. (12 Dec 1998) |
| district | 1. The territory within which the lord has the power of coercing and punishing. 2. A division of territory; a defined portion of a state, town, or city, etc, made for administrative, electoral, or other purposes; as, a congressional district, judicial district, land district, school district, etc. "To exercise exclusive legislation . . . Over such district not exceeding ten miles square." (The Constitution of the United States) 3. Any portion of territory of undefined extent; a region; a country; a tract. "These districts which between the tropics lie." (Blackstone) Congressional district. See Congressional. District attorney, the prosecuting officer of a district or district court. District court, a subordinate municipal, state, or United States tribunal, having jurisdiction in certain cases within a judicial district. District judge, one who presides over a district court. District school, a public school for the children within a school district. Synonym: Division, circuit, quarter, province, tract, region, country. Origin: LL. Districtus district, fr. L. Districtus, p. P. Of distringere: cf. F. District. See Distrain. Source: Websters Dictionary (01 Mar 1998) |
| district heating or cooling | A system that involves the central production of hot water, steam, or chilled water and the distribution of these transfer media to heat or cool buildings. (05 Dec 1998) |
| district of columbia | A federal area located between maryland and virginia on the potomac river; it is coextensive with washington, d.c., which is the capital of the united states. (12 Dec 1998) |
| africa, northern | The geographical area of africa comprising algeria, egypt, libya, morocco, and tunisia. It includes also the vast deserts and oases of the sahara. It is often referred to as north africa, french-speaking africa, or the magreb. (12 Dec 1998) |
| blot, northern | A technique in molecular biology, used mainly to separate and identify pieces of RNA. Called a Northern blot only because it is similar to a Southern blot (which is named after its inventor, the British biologist M.E. Southern). (12 Dec 1998) |
| blotting, northern | Detection of RNA that has been electrophoretically separated and immobilised by blotting on nitrocellulose or other type of paper or nylon membrane. (12 Dec 1998) |
| northern | 1. Of or pertaining to the north; being in the north, or nearer to that point than to the east or west. 2. In a direction toward the north; as, to steer a northern course; coming from the north; as, a northern wind. Northern diver. <zoology> See Loon. Northern lights. See Aurora borealis, under Aurora. <botany> Northern spy, an excellent American apple, of a yellowish colour, marked with red. Origin: AS. Northerne. Source: Websters Dictionary (01 Mar 1998) |
| Northern blot | <molecular biology, procedure> An electroblotting method in which RNA is transferred to a filter and detected by hybridisation to (32)P labelled RNA or DNA. (18 Nov 1997) |
| Northern blot analysis | A procedure similar to the Southern blot analysis, used mostly to separate and identify RNA fragments; typically via transferring RNA fragments from an agarose gel to a nitrocellulose filter followed by detection with a suitable probe. Origin: coined to distinguish it from eponymic Southern blot a. (05 Mar 2000) |
| northern territory | A territory in north central Australia, east of the state of queensland. Its capital is darwin. Originally a part of new south wales, it was annexed to south Australia in 1863, entered the commonwealth as part of it in 190l, transferred to the commonwealth in 1911, divided in 1927, but was reestablished in 1931. It was granted self government within the commonwealth of Australia in 1978. (12 Dec 1998) |
| superior dental branches of superior dental plexus | Branches passing from the superior dental plexus to the roots of the teeth of the upper jaw. Synonym: rami dentales superiores plexus dentalis superioris. (05 Mar 2000) |
| inferior dental branches of inferior dental plexus | Branches passing from the inferior dental plexus to the roots of the teeth of the lower jaw. Synonym: rami dentales inferiores plexus dentalis inferioris. (05 Mar 2000) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|