| 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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| DDS | damaged disc syndrome; dendrodendritic synaptosome; dental distress syndrome; depressed DNA synthesi... |
|---|---|
| EBI | emetine bismuth iodide; erythroblastic island; estradiol binding index |
| is | in situ; island; islet; isolated |
| AADE | American Association of Dental Editors; American Association of Dental Examiners |
| CDA | Canadian Dental Association; Certified Dental Assistant; chenodeoxycholic acid; ciliary dyskinesia a... |
| RIR | Rhode Island Red |
|---|---|
| JAMA | Journal of the American Medical Association |
| NEJM | New England Journal of Medicine |
| CIMP | CpG island methylator phenotype |
| HPI | High-Pathogenicity Island |
| journal article | The predominant publication type for articles and other items indexed for nlm databases. (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) |
| bam island | <molecular biology> Areas of DNA which do not get transcribed, consisting of many repeats of the same sequence of nucleotide bases. (13 Nov 1997) |
| blood island | An aggregation of splanchnic mesodermal cells on the embryonic yolk sac, with the potentiality of forming vascular endothelium and primitive blood cells. Synonym: blood islet. (05 Mar 2000) |
| bone island | <radiology> Small, intramedullary island of compact bone, usually negative on bone scan, shaggy, slightly stellate border, Differential diagnosis: osteoid osteoma, multiple leading to osteopoikilosis (12 Dec 1998) |
| magnetic island | <physics> A magnetic topology near a rational surface where the flux surface is broken up into tubes which are not connected with each other poloidally. Islands may develop in non-ideal magnetohydrodynamic fluids, where electrical resistance becomes important and magnetic field lines are no longer frozen-in to the fluid. Then magnetic tearing and reconnection may allow field lines to link up and form islands with a local magnetic axis in a narrow region near a rational surface. (See also magnetohydrodynamic, frozen-in law). The development of islands may be caused by a small perturbation, whether internal or external, whether deliberate or accidental, and is usually associated with enhanced transport (i.e., reduced confinement). The centres of the islands are magnetic O-points, while the boundaries between islands are marked by X-points. (09 Oct 1997) |
| pitcairn island | An island in polynesia, in the south pacific ocean. It was discovered in 1767 by philip carteret, uninhabited until 1790 when settled by mutineers from the english ship, bounty. The settlement was discovered in 1808; the population was removed temporarily to tahiti in 1831 and to norfolk island (between new caledonia and new zealand) in 1856. Some later returned to pitcairn and their descendents constitute the present population of this british colony. The island is named for the midshipman who first sighted it from the ship. (12 Dec 1998) |
| CpG island | <molecular biology> Region of genomic DNA rich in the dinucleotide C G. Methylation of the C in the dinucleotide is maintained through cell divisions and profoundly affects the degree of transcription of the nearby genes and is important in developmental regulation of gene expression. (18 Nov 1997) |
| cpg-rich island | <molecular biology> Areas of DNA which consist mostly of the base pair sequence CGCGCGCG. (alternating cytosine and guanine nucleotide bases) that are usually found upstream of many genes and are thought to help regulate gene expression. They are often methylated (have methyl groups attached to the DNA segments). (28 May 1998) |
| prince edward island | An island in the gulf of st. Lawrence constituting a province of canada in the eastern part of the country. It is very irregular in shape with many deep inlets. Its capital is charlottetown. Discovered by the french in 1534 and originally named ile saint-jean, it was renamed in 1799 in honor of prince edward, fourth son of george III and future father of queen victoria. (12 Dec 1998) |
| island | 1. <geography> A tract of land surrounded by water, and smaller than a continent. Cf. Continent. 2. Anything regarded as resembling an island; as, an island of ice. Origin: OE. Iland, yland, AS. Igland, gland, glond; ig, g, island + land, lond, land. AS. Ig, g, is akin to AS. Ea water, river, OHG. Uwa, G. Au meadow, Icel. Ey island, Dan. & Sw. O, Goth. Ahwa a stream, water, L. Aqua water. The s is due to confusion with isle. Cf. Ait, Eyot, Ewer, Aquatic. Source: Websters Dictionary (01 Mar 1998) |
| island disease | See Typhus, scrub. (12 Dec 1998) |
| island fever | See Typhus, scrub. (12 Dec 1998) |
| island flap | A flap in which the pedicle consists solely of the supplying artery and vein(s), sometimes including a nerve. (05 Mar 2000) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|