| 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... |
|---|---|
| AADE | American Association of Dental Editors; American Association of Dental Examiners |
| CDA | Canadian Dental Association; Certified Dental Assistant; chenodeoxycholic acid; ciliary dyskinesia a... |
| DP | data processing; deep pulse; definitive procedure; degradation product; degree of polymerization; de... |
| FDI | F?d?ration Dentaire Internationale = International Dental Association |
| ADA | American Dental Association |
|---|---|
| CDA | California Dental Association |
| CDS | Community Dental Service |
| CDAS | Corah Dental Anxiety Scale |
| DAI | Dental Aesthetic Index |
| dental engineering | <dentistry> Application of engineering principles to dentistry. (05 Mar 2000) |
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| gas engine | A piston engine that uses gaseous fuel rather than gasoline. Fuel and air are mixed before they enter cylinders; ignition occurs with a spark. (05 Dec 1998) |
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| steam engine | An engine moved by steam. In its most common forms its essential parts are a piston, a cylinder, and a valve gear. The piston works in the cylinder, to which steam is admitted by the action of the valve gear, and communicates motion to the machinery to be actuated. Steam engines are thus classified: 1. According to the wat the steam is used or applied, as condencing, noncondencing, compound, double-acting, single-acting, triple-expansion, etc. 2. According to the motion of the piston, as reciprocating, rotary, etc. 3. According to the motion imparted by the engine, as rotative and nonrotative. 4. According to the arrangement of the engine, as stationary, portable, and semiportable engines, beam engine, oscillating engine, direct-acting and back-acting engines, etc. 5. According to their uses, as portable, marine, locomotive, pumping, blowing, winding, and stationary engines. Locomotive and portable engines are usually high-pressure, noncondencing, rotative, and direct-acting. Marine engines are high or low pressure, rotative, and generally condencing, double-acting, and compound. Paddle engines are generally beam, sidelever, oscillating, or direct-acting. Screw engines are generally direct-acting, back-acting, or oscillating. Stationary engines belong to various classes, but are generally rotative. A horizontal or inclined stationary steam engine is called a left-hand or a right-hand engine when the crank shaft and driving pulley are on the left-hand side, or the right-hand side, respectively, or the engine, to a person looking at them from the cylinder, and is said to run forward or backward when the crank traverses the upward half, or lower half, respectively, of its path, while the piston rod makes its stroke outward from the cylinder. A marine engine, or the engine of a locomotive, is said to run forward when its motion is such as would propel the vessel or the locomotive forward. Steam engines are further classified as double-cylinder, disk, semicylinder, trunk engines, etc. Machines, such as cranes, hammers, etc, of which the steam engine forms a part, are called steam cranes, steam hammers, etc. Back-acting, or Back-action, steam engine, a steam engine in which the motion is transmitted backward from the crosshead to a crank which is between the crosshead and the cylinder, or beyond the cylinder. Portable steam engine, a steam engine combined with, and attached to, a boiler which is mounted on wheels so as to admit of easy transportation; used for driving machinery in the field, as trashing machines, draining pumps, etc. Semiportable steam engine, a steam engine combined with, and attached to, a steam boiler, but not mounted on wheels. Source: Websters Dictionary (01 Mar 1998) |
| diesel engine | A compression-ignition piston engine in which fuel is ignited by injecting it into air that has been heated (unlike a spark-ignition engine). (05 Dec 1998) |
| engine | 1. (Pronounced, in this sense,) Natural capacity; ability; skill. "A man hath sapiences three, Memory, engine, and intellect also." (Chaucer) 2. Anything used to effect a purpose; any device or contrivance; an agent. "You see the ways the fisherman doth take To catch the fish; what engines doth he make?" (Bunyan) "Their promises, enticements, oaths, tokens, and all these engines of lust." (Shak) 3. Any instrument by which any effect is produced; especially, an instrument or machine of war or torture. "Terrible engines of death." 4. <machinery> A compound machine by which any physical power is applied to produce a given physical effect. Engine driver, one who manages an engine; specifically, the engineer of a locomotive. Engine lathe. A method of ornamentation by means of a rose engine. The term engine is more commonly applied to massive machines, or to those giving power, or which produce some difficult result. Engines, as motors, are distinguished according to the source of power, as steam engine, air engine, electromagnetic engine; or the purpose on account of which the power is applied, as fire engine, pumping engine, locomotive engine; or some peculiarity of construction or operation, as single-acting or double-acting engine, high-pressure or low-pressure engine, condensing engine, etc. Origin: F. Engin skill, machine, engine, L. Ingenium natural capacity, invention; in in + the root of gignere to produce. See Genius, and cf. Ingenious, Gin a snare. Source: Websters Dictionary (01 Mar 1998) |
| engine reamer | An engine-mounted spirally-bladed instrument, used for enlarging the root canals of teeth. (05 Mar 2000) |
| 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) |
| acid etching, dental | Pretreatment of tooth surfaces with etching agents, usually phosphoric acid, to increase the adhesion of various resin systems. (12 Dec 1998) |
| american dental association | Professional society representing the field of dentistry. (12 Dec 1998) |
| anterior superior dental arteries | Origin, infraorbital artery within intraorbital canal; distribution, via anterior alveolar canals to upper incisors and canine teeth, mucus membrane of maxillary sinus. Synonym: arteriae alveolares superiores anteriores, anterior superior dental arteries. (05 Mar 2000) |
| apical dental foramen | The opening at the apex of the root of a tooth that gives passage to the nerve and blood vessels. Synonym: foramen apicis dentis, apical dental foramen, root foramen. (05 Mar 2000) |
| arrested dental caries | Carious lesions that have become inactive and stopped progressing; they may exhibit changes in colour and/or consistency. (05 Mar 2000) |
| biomedical and dental materials | Substances used in biomedicine or dentistry predominantly for their physical, as opposed to chemical, properties. (12 Dec 1998) |
| radiography, dental | Radiographic techniques used in dentistry. (12 Dec 1998) |
| radiography, dental, digital | A rapid, low-dose, digital imaging system using a small intraoral sensor instead of radiographic film, an intensifying screen, and a charge-coupled device. It presents the possibility of reduced patient exposure and minimal distortion, although resolution and latitude are inferior to standard dental radiography. A receiver is placed in the mouth, routing signals to a computer which images the signals on a screen or in print. It includes digitizing from X-ray film or any other detector. (12 Dec 1998) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|