| 영문 | enamel | 한글 | 사기질 |
|---|---|---|---|
| 설명 | 치아의 한 부분을 이르는 말이다. 치아관을 피복하는 회백색 반투명의 단단한 물질이다. 치아는 크게 치아관(crown)과 치근(root)으로 나눌 수가 있다. 치아관이란 구강내로 돌출하고 있는 치아의 부분이며, 치근이란 치아관 아래에 존재하는 치아의 부분을 말한다. 사기질은 치아관을 둘러싸고 있는 아주 단단한 조직으로 우리가 입안으로 직접 관찰할 수가 있는 흰색을 띠는 것이다. 전신에서 가장 단단한 부분으로 굳기 6~7° 이므로 석영과 거의 비슷하다. 사기질소주라고 하는 3~5μm 굵기의 사상체의 집합으로 한 개의 이에 수백만 개의 작은기둥이 있다. 사기질은 한번 마모되거나 녹아 버리면 다시 신생되지 않는다. 잇몸의 내부에 있는 치근부에서는 상아질 표면이 시멘트질로 덮여 있다. 사기질에는 신경이 없으므로 여기에 생긴 충치에는 치통이 없으나, 상아질까지 침범되었을 때 냉수가 스며들면 이가 시리고 치통이 시작된다. 소량의 플루오르화물을 섭취하면 이가 건강해진다고 하지만 과다하면 사기질을 상하게 한다. |
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| CEJ | cement-enamel junction |
|---|---|
| DEJ, dej | dentino-enamel junction; dermo-epidermal junction |
| ERS | enamel-renal syndrome; endoscopic retrograde sphincterectomy |
| IEE | inner enamel epithelium |
| OEE | osmotic erythrocyte enrichment; outer enamel epithelium |
| EMD | Enamel Matrix Derivative |
|---|---|
| LEH | Linear enamel hypoplasias |
| CEJ | cement enamel junction |
| DEJ | dentin enamel junction |
| EDJ | enamel dentine junction |
Epsteins pearl
| enamel pearl | A developmental anomaly in which there is a small nodule of enamel below the cementoenamel junction, usually at the bifurcation of molar teeth. Synonym: enamel drop, enamel nodule, enamel pearl. (05 Mar 2000) |
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| pearl | 1. <marine biology, zoology> A shelly concretion, usually rounded, and having a brilliant luster, with varying tints, found in the mantle, or between the mantle and shell, of certain bivalve mollusks, especially in the pearl oysters and river mussels, and sometimes in certain univalves. It is usually due to a secretion of shelly substance around some irritating foreign particle. Its substance is the same as nacre, or mother-of-pearl. Pearls which are round, or nearly round, and of fine luster, are highly esteemed as jewels, and compare in value with the precious stones. 2. Hence, figuratively, something resembling a pearl; something very precious. "I see thee compassed with thy kingdom's pearl." (Shak) "And those pearls of dew she wears." (Milton) 3. Nacre, or mother-of-pearl. 4. <marine biology> A fish allied to the turbot; the brill. 5. <ornithology> A light-coloured tern. 6. <zoology> One of the circle of tubercles which form the bur on a deer's antler. 7. A whitish speck or film on the eye. 8. A capsule of gelatin or similar substance containing some liquid for medicinal application, as ether. 9. A size of type, between agate and diamond. This line is printed in the type called pearl. Ground pearl. <zoology> A crystallized variety of dolomite, having a pearly luster. Pearl white. Basic bismuth nitrate, or bismuth subchloride; used chiefly as a cosmetic. A variety of white lead blued with indigo or Berlin blue. Origin: OE. Perle, F. Perle, LL. Perla, perula, probably fr. (assumed) L. Pirulo, dim. Of L. Pirum a pear. See Pear, and cf. Purl to mantle. (19 Mar 1998) |
|---|---|
| pearl-ash | <chemistry> A white amorphous or granular substance which consists principally of potassium carbonate, and has a strong alkaline reaction. The hydroxide of potassium hydrate, a hard white brittle substance, KOH, having strong caustic and alkaline properties; hence The impure potassium carbonate obtained by leaching wood ashes, and evaporating the lye, or as a white crystalline pearl-ash. It has previously been an important source of potassium compounds, and previously used in making soap, glass, etc. Synonym: caustic potash. Source: Websters Dictionary (01 Mar 1998) |
| pearl cyst | <ophthalmology> A mass of epithelial cells introduced into the interior of the eye by a perforating injury. (21 Jun 2000) |
| pearl moss | Synonym: cartilage. 2. The plant Chondrus crispus, Fucus crispus, or Gigartina mamillosa (family Gigartinaceae); a demulcent in chronic and intestinal disorders. Synonym: carrageen, carragheen, Irish moss, pearl moss. Origin: G. Chondros, gristle (05 Mar 2000) |
| pearl necklace gallbladder | <radiology> Associated with the generalised form of adenomyomatosis findings: tiny extraluminal extension of contrast on oral cholecystogram, enhanced after contraction (12 Dec 1998) |
| pearl tumour | An obsolete term for cholesteatoma. (05 Mar 2000) |
| pearl-worker's disease | Inflammatory hypertrophy of the bones affecting grinders of mother-of-pearl. (05 Mar 2000) |
| gouty pearl | A concretion of sodium urate on the cartilage of the ear, occurring in the gouty. (05 Mar 2000) |
| mother-of-pearl | <zoology> The hard pearly internal layer of several kinds of shells, especially. Of pearl oysters, river mussels, and the abalone shells; nacre. See Pearl. Source: Websters Dictionary (01 Mar 1998) |
| squamous pearl | A focus of central keratinization within concentric layers of abnormal squamous cells; seen in squamous cell carcinoma. Synonym: epithelial nest, epithelial pearl, squamous pearl. (05 Mar 2000) |
| epithelial pearl | A focus of central keratinization within concentric layers of abnormal squamous cells; seen in squamous cell carcinoma. Synonym: epithelial nest, epithelial pearl, squamous pearl. (05 Mar 2000) |
| keratin pearl | A focus of central keratinization within concentric layers of abnormal squamous cells; seen in squamous cell carcinoma. Synonym: epithelial nest, epithelial pearl, squamous pearl. (05 Mar 2000) |
| reduced enamel epithelium | The several layers of the enamel organ remaining on the enamel surface after formation of enamel is completed. Synonym: reduced enamel epithelium. (05 Mar 2000) |
| mottled enamel | Alterations in enamel structure due to excessive fluoride ingestion during tooth formation; varies in appearance from small white opacities to yellow and black spotting. Nanoid enamel, a condition of abnormal thinness of the enamel. Synonym: dwarfed enamel. Whorled enamel, enamel in which the rods assume a spiral or twisting course. (05 Mar 2000) |
| dental enamel | <dentistry> A hard thin translucent layer of calcified substance which envelops and protects the dentin of the crown of the tooth. It is the hardest substance in the body and is almost entirely composed of calcium salts. Under the microscope, it is composed of thin rods (enamel prisms) held together by cementing substance, and surrounded by an enamel sheath. (12 Dec 1998) |
| enamel pearls |
Small rounded globules of highly mineralized material seen near or attached to the enamel margin or furcation of the tooth roots. These are formed by aberrant ameloblasts and hypermineralization.
출처:
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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