| D010825 |
Physics |
The study of those aspects of energy and matter in terms of elementary principles and laws. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) |
Physic |
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| D003776 |
Dental Porcelain |
A type of porcelain used in dental restorations, either jacket crowns or inlays, artificial teeth, or metal-ceramic crowns. It is essentially a mixture of particles of feldspar and quartz, the feldspar melting first and providing a glass matrix for the quartz. Dental porcelain is produced by mixing ceramic powder (a mixture of quartz, kaolin, pigments, opacifiers, a suitable flux, and other substances) with distilled water. (From Jablonski's Dictionary of Dentistry, 1992) |
Porcelain,Porcelain, Dental,Dental Porcelains,Porcelains,Porcelains, Dental |
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| D005461 |
Fluorine |
A nonmetallic, diatomic gas that is a trace element and member of the halogen family. It is used in dentistry as fluoride (FLUORIDES) to prevent dental caries. |
Fluorine-19,Fluorine 19 |
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| D005740 |
Gases |
The vapor state of matter; nonelastic fluids in which the molecules are in free movement and their mean positions far apart. Gases tend to expand indefinitely, to diffuse and mix readily with other gases, to have definite relations of volume, temperature, and pressure, and to condense or liquefy at low temperatures or under sufficient pressure. (Grant & Hackh's Chemical Dictionary, 5th ed) |
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| D006047 |
Gold Alloys |
Alloys that contain a high percentage of gold. They are used in restorative or prosthetic dentistry. |
Gold Alloy,Alloy, Gold,Alloys, Gold |
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| D006244 |
Hardness |
The mechanical property of material that determines its resistance to force. HARDNESS TESTS measure this property. |
Hardnesses |
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| D006358 |
Hot Temperature |
Presence of warmth or heat or a temperature notably higher than an accustomed norm. |
Heat,Hot Temperatures,Temperature, Hot,Temperatures, Hot |
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| D000143 |
Acids |
Chemical compounds which yield hydrogen ions or protons when dissolved in water, whose hydrogen can be replaced by metals or basic radicals, or which react with bases to form salts and water (neutralization). An extension of the term includes substances dissolved in media other than water. (Grant & Hackh's Chemical Dictionary, 5th ed) |
Acid |
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| D000388 |
Air |
The mixture of gases present in the earth's atmosphere consisting of oxygen, nitrogen, carbon dioxide, and small amounts of other gases. |
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| D000704 |
Analysis of Variance |
A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable. |
ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses |
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