Category: L
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Low speed dental handpiece
A dental handpiece that operates at speeds about 6,000 to 10,000 rpm. Low-speed handpieces are used to polish and finish dental procedures.
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Lingual gyrus
A gyrus between the calcarine and collateral fissures.
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Law of grotthus draper
The inverse relationship between the amount of energy absorption and the depth of penetration of the energy. Energy that is absorbed by superficial layers is no longer available to deeper-lying tissues.
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Lacrimal groove
Two grooves, one on the posterior surface of the frontal process of the maxilla, and the other on the anterior surface of the posterior lacrimal crest of the lacrimal bone. These grooves lodge the lacrimal sac.
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Labiomental groove
The horizontal depression between the lower lip and the chin.
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Lipophagic granuloma
A granuloma in which the macrophages have phagocytosed the surrounding fat cells.
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Lipoid granuloma
A granuloma that contains fatty tissue or cholesterol.
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Lamellar graft
A very thin corneal graft used to replace the surface layer of opaque corneal tissue.
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Lead gout
Goutlike symptoms associated with lead poisoning.
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Lingual goiter
The abnormal finding of thyroid glandular tissue within the tongue.