extraction

extraction /ex·trac·tion/ (eks-trak´shun)

1. the process or act of pulling or drawing out.

2. the preparation of an extract.

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breech extraction  extraction of an infant from the uterus in breech presentation.

flap extraction  extraction of a cataract by an incision which makes a flap of cornea.

serial extraction  the selective extraction of deciduous teeth during an extended period of time to allow autonomous adjustment.

testicular sperm extraction  (TESE) for men with obstructive azoospermia, extraction of spermatozoa directly from the testis through the skin.

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ex·trac·tion (k-strkshn)

n.

1. The act of extracting or the condition of being extracted.

2. Something obtained by extracting; an extract.

3. The removal by withdrawing or pulling out of a tooth from its socket.

4. Removal of a baby from the genital canal in assisted delivery.

5. The active portion of a drug.

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Extraction

The surgical removal of a tooth from its socket in the bone.

Mentioned in: Dental Trauma, Impacted Tooth, Root Canal Treatment

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extraction (ek·strakˑ·shn),

n method used to isolate essential oils and other products, such as absolutes, floral waters, resinoids, and tinctures, from plant material. Distillation, hydrodiffusion, expression, solvent extraction, carbon dioxide extraction, enfleurage, and maceration are commonly used extraction methods. See also distillation, hydrodiffusion, expression, enfleurage, and maceration.

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extraction,

n the removal of a tooth from the oral cavity by means of elevators and/or forceps.

extraction, serial,

n the extraction of selected primary teeth over a period of years (often ending with removal of the first premolar teeth) to relieve crowding of the dental arches during eruption of the lateral incisors, canines, and premolars.

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extraction

1. the process or act of pulling or drawing out.

2. the preparation of an extract.

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breech extraction

extraction of a fetus from the uterus in cases of breech presentation.

flap extraction

removal of a cataract by making a flap in the cornea.

extraction forceps

concave beaks to grasp teeth.

vacuum extraction

removal of the contents of a body cavity by application of a vacuum.

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extraction

Dentistry See Dental extraction Gynecology See Menstrual extraction.