| 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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| WPk | Ward's pack; wet pack |
|---|---|
| DDS | damaged disc syndrome; dendrodendritic synaptosome; dental distress syndrome; depressed DNA synthesi... |
| CR | calculation rate; calculus removed; calorie-restricted; cardiac rehabilitation; cardiac resuscitatio... |
| TOP | termination of pregnancy; topoisomerase |
| top | topical |
| BBTV | Banana bunchy top virus |
|---|---|
| BCTV | Beet curly top virus |
| TOP | termination of pregnancy |
| CSD | critical size defect |
| ES | Effect Size |
| top | 1. To cover on the top; to tip; to cap; chiefly used in the past participle. "Like moving mountains topped with snow." (Waller) "A mount Of alabaster, topped with golden spires." (Milton) 2. To rise above; to excel; to outgo; to surpass. "Topping all others in boasting." (Shak) "Edmund the base shall top the legitimate." (Shak) 3. To rise to the top of; to go over the top of. "But wind about till thou hast topped the hill." (Denham) 4. To take off the or upper part of; to crop. "Top your rose trees a little with your knife." (Evelyn) 5. To perform eminently, or better than before. "From endeavoring universally to top their parts, they will go universally beyond them." (Jeffrey) 6. To raise one end of, as a yard, so that that end becomes higher than the other. To top off, to complete by putting on, or finishing, the top or uppermost part of; as, to top off a stack of hay; hence, to complete; to finish; to adorn. 1. A child's toy, commonly in the form of a conoid or pear, made to spin on its point, usually by drawing off a string wound round its surface or stem, the motion being sometimes continued by means of a whip. 2. A plug, or conical block of wood, with longitudital grooves on its surface, in which the strands of the rope slide in the process of twisting. Origin: CF. OD. Dop, top, OHG, MNG, & dial. G. Topf; perhaps akin to G. Topf a pot. 1. The highest part of anything; the upper end, edge, or extremity; the upper side or surface; summit; apex; vertex; cover; lid; as, the top of a spire; the top of a house; the top of a mountain; the top of the ground. "The star that bids the shepherd fold, Now the top of heaven doth hold." (Milton) 2. The utmost degree; the acme; the summit. "The top of my ambition is to contribute to that work." (Pope) 3. The highest rank; the most honorable position; the utmost attainable place; as, to be at the top of one's class, or at the top of the school. "And wears upon hisbaby brow the round And top of sovereignty." (Shak) 4. The chief person; the most prominent one. "Other . . . Aspired to be the top of zealots." (Milton) 5. The crown of the head, or the hair upon it; the head. "From top to toe" "All the stored vengeance of Heaven fall On her ungrateful top !" (Shak) 6. The head, or upper part, of a plant. "The buds . . . Are called heads, or tops, as cabbageheads." (I. Watts) 7. A platform surrounding the head of the lower mast and projecting on all sudes. It serves to spead the topmast rigging, thus strengheningthe mast, and also furnishes a convenient standing place for the men aloft. 8. A bundle or ball of slivers of comkbed wool, from which the noils, or dust, have been taken out. 9. Eve; verge; point. "He was upon the top of his marriage with Magdaleine." 10. The part of a cut gem between the girdle, or circumference, and the table, or flat upper surface. Top is often used adjectively or as the first part of compound words, usually self-explaining; as, top stone, or topstone; top-boots, or top boots; top soil, or top-soil. Top and but, a phrase used to denote a method of working long tapering planks by bringing the but of one plank to the top of the other to make up a constant breadth in two layers. <zoology> Top minnow, a small viviparous fresh water fish (Gambusia patruelis) abundant in the Southern United States. Also applied to other similar species. Origin: AS. Top; akin to OFries. Top a tuft, D. Top top, OHG. Zopf end, tip, tuft of hair, G. Zopf tuft of hair, pigtail, top of a tree, Icel. Toppr a tuft of hair, crest, top, Dan. Top, Sw. Topp pinnacle, top; of uncertain origin. Cf. Tuft. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| top-shaped | <botany> Having the shape of a top; cone-shaped, with the apex downward; turbinate. Source: Websters Dictionary (01 Mar 1998) |
| top-shell | <zoology> Any one of numerous species of marine top_shaped shells of the genus Thochus, or family Trochidae. Source: Websters Dictionary (01 Mar 1998) |
| turban-top | <botany> A kind of fungus with an irregularly wrinkled, somewhat globular pileus (Helvella, or Gyromitra, esculenta). Source: Websters Dictionary (01 Mar 1998) |
| flat top waves | Activity in the electroencephalogram having a pattern suggesting a flat top; these wave's are often found in temporal lobe discharges. (05 Mar 2000) |
| blister pack | A package consisting of a clear plastic overlay affixed to a cardboard backing for protecting and displaying a product. (18 Nov 1997) |
| pack | 1. A bundle made up and prepared to be carried; especially, a bundle to be carried on the back; a load for an animal; a bale, as of goods. 2. [Cf. Peck] A number or quantity equal to the contents of a pack; hence, a multitude; a burden. "A pack of sorrows." "A pack of blessings." "In England, by a pack of meal is meant 280 lbs.; of wool, 240 lbs." 3. A number or quantity of connected or similar things; as: A full set of playing cards; also, the assortment used in a particular game; as, a euchre pack. A number of hounds or dogs, hunting or kept together. A number of persons associated or leagued in a bad design or practice; a gang; as, a pack of thieves or knaves. A shook of cask staves. A bundle of sheet-iron plates for rolling simultaneously. 4. A large area of floating pieces of ice driven together more or less closely. 5. An envelope, or wrapping, of sheets used in hydropathic practice, called dry pack, wet pack, cold pack, etc, according to the method of treatment. 6. [Prob. The same word; but cf. AS. Pcan to deceive] A loose, lewd, or worthless person. See Baggage. Pack animal, an animal, as a horse, mule, etc, employed in carrying packs. Pack cloth, a coarse cloth, often duck, used in covering packs or bales. Pack horse. See Pack animal (above). Pack ice. See def. 4, above. Pack moth, a troop of pack animals. Origin: Akin to D. Pak, G. Pack, Dan. Pakke, Sw. Packa, Icel. Pakki, Gael. & Ir. Pac, Arm. Pak. Cf. Packet. 1. To make a pack of; to arrange closely and securely in a pack; hence, to place and arrange compactly as in a pack; to press into close order or narrow compass; as to pack goods in a box; to pack fish. "Strange materials packed up with wonderful art." (Addison) "Where . . . The bones Of all my buried ancestors are packed." (Shak) 2. To fill in the manner of a pack, that is, compactly and securely, as for transportation; hence, to fill closely or to repletion; to stow away within; to cause to be full; to crowd into; as, to pack a trunk; the play, or the audience, packs the theater. 3. To sort and arrange (the cards) in a pack so as to secure the game unfairly. "And mighty dukes pack cards for half a crown." (Pope) 4. Hence: To bring together or make up unfairly and fraudulently, in order to secure a certain result; as, to pack a jury or a causes. "The expected council was dwindling into . . . A packed assembly of Italian bishops." (Atterbury) 5. To contrive unfairly or fraudulently; to plot. " He lost life . . . Upon a nice point subtilely devised and packed by his enemies." (Fuller) 6. To load with a pack; hence, to load; to encumber; as, to pack a horse. "Our thighs packed with wax, our mouths with honey." (Shack) 7. To cause to go; to send away with baggage or belongings; especially, to send away peremptorily or suddenly; sometimes with off; as, to pack a boy off to school. "He . . . Must not die" "Till George be packed with post horse up to heaven." (Shak) 8. To transport in a pack, or in the manner of a pack (i. E, on the backs of men or beasts). 9. To envelop in a wet or dry sheet, within numerous coverings. See Pack. 10. <mechanics> To render impervious, as by filling or surrounding with suitable material, or to fit or adjust so as to move without giving passage to air, water, or steam; as, to pack a joint; to pack the piston of a steam engine. Origin: Akin to D. Pakken, G. Packen, Dan. Pakke, Sw. Packa, Icel. Pakka. See Pack. Source: Websters Dictionary (01 Mar 1998) |
| cold pack | A pack of cloth or other material soaked in cold water or encasing ice. (05 Mar 2000) |
| wet pack | The usual form of pack using hot or cold moisture. (05 Mar 2000) |
| hot pack | A pack of cloth or other material soaked in hot water, or producing moist heat by another means. (05 Mar 2000) |
| dry pack | A pack enveloping one in dry, warmed blankets in order to induce profuse perspiration. (05 Mar 2000) |
| ice pack | A cold local application to limit or reduce swelling in recently traumatised tissues; usually in the form of a water-impervious container for ice. Improvised means for containing ice (plastic bags, towels, etc.) are often employed, as are chemical sacks that when struck allow the commingling of chemicals that react endothermically. (05 Mar 2000) |
| abnormal placental size | <radiology> TOO BIG (greater than5cm in sections obtained at right angles to the long axis), maternal disease, diabetic mothers (= villous oedema), intrauterine infections, anaemic mothers (= normal histology), foetal disease, erythroblatosis foetalis (= villous oedema and hyperplasia), umbilical vein obstruction, foetal high output failure, large chorioangioma, sacrococcygeal teratoma, arteriovenous fistula too small, preeclampsia (associated with placental infarcts in 33-60%) (12 Dec 1998) |
| aerodynamic size | In aerosols, the particle size with unit density that best represents the aerodynamic behaviour of a particle. (05 Mar 2000) |
| burst size | The number of phages produced by an infected cell. (05 Mar 2000) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|