Toothache
Pain in the tooth or gum. The most common cause of a toothache is a cavity or an injury to a tooth that exposes the pulp, which is heavily supplied by nerves.
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- Tophaceous gout
A chronic form of gout. Nodular masses of uric acid crystals (tophi) are deposited in different soft tissue areas of the body. Even though tophi are most commonly found as hard nodules around the fingers, at the tips of the elbows, and around the big toe, tophi nodules can appear anywhere in the body. They […]
- Tophus
A nodular mass of uric acid crystals. Tophi are characteristically deposited in different soft tissue areas of the body in chronic (tophaceous) gout. Even though tophi are most commonly found as hard nodules around the fingers, at the tips of the elbows, and around the big toe, they can appear anywhere in the body. They […]
- Topical
Pertaining to a particular surface area. For example, a topical agent is applied to a certain area of the skin and is intended to affect only the area to which it is applied. Whether its effects are indeed limited to that area depends on whether the agent stays where it is put or is absorbed […]
- Topical chemotherapy
Treatment with an anticancer drug in a lotion, ointment or cream that is applied to the skin.
- Topoisomerase
A class of enzymes that alter the supercoiling of double-stranded DNA. (In supercoiling the DNA molecule coils up like a telephone cord, which shortens the molecule.) The topoisomerases act by transiently cutting one or both strands of the DNA. Topoisomerase type I cuts one strand whereas topoisomerase type II cuts both strands of the DNA […]