serial 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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se·ri·al extraction (sîr-l)

n.

Selective extraction of certain teeth during the early years of dental development, usually with the eventual extraction of the first premolars to encourage autonomous adjustment of crowding of the anterior teeth.

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serial extraction,

a program of selective extraction of primary, and, sometimes, secondary teeth over a period of time, with the objective of relieving crowding and of facilitating the eruption of remaining teeth into improved positions. Close supervision of ensuing eruption is essential because the closing over of spaces is common. Comprehensive orthodontic treatment should almost always be initiated during or after eruption for space management, control of tipping induced by the procedure, and correction of other problems.

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extraction [ek-strak´shun]

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

2. the preparation of an extract.

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

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

menstrual extraction a form of induced abortion in which a flexible cannula is inserted through an undilated cervix for the purpose of removing the fertilized embryo and endometrium. The cannula is attached to a syringe, which is used to aspirate the uterine contents and induce the onset of the “missed period.” This technique is not always effective, and sometimes a second procedure is required. It should be done within two weeks of a missed menstrual period.

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

tooth extraction forcible removal of a tooth; called also odontectomy.

vacuum extraction removal of the uterine contents by application of a vacuum, done either for delivery of a viable fetus or for an abortion.

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serial extraction,

n a program of selective extraction of primary and sometimes permanent teeth over time, with the objective of relieving crowding and facilitating the eruption of remaining teeth into improved positions. Close supervision of ensuing eruption is essential, because overclosure of the spaces and other sequelae may be expected in a significant number of cases. Comprehensive orthodontic treatment should almost always be initiated in the course of or after eruption for space management, control of the autonomous tipping usually induced by the procedure, and other malrelationships that commonly accompany these conditions.