apicostomy


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trephination

 [tref€´€ĭ-na´shun]
use of the trephine for creating an opening in the skull or in the sclera.
dental trephination surgical creation of a fistula by puncturing the soft tissue and bone overlying the root apex to provide drainage. Called also apicostomy.

ap·i·cos·to·my

(ap'i-kos'tō-mē),
An operation in which the labial or buccal alveolar plate is perforated with a trocar and cannula; done to reach the root apex and to take bacterial cultures from this area.
[apico- + G. stoma, mouth]

apicostomy

(āp″ĭ-kos′tŏ-mē) [ apex + -stomy]
Surgical removal of the mucoperiosteum and bone to expose the apex of the root of a tooth.

ap·i·cos·to·my

(ap'i-kos'tō-mē)
An operation in which the labial or buccal alveolar plate is perforated with a trocar and cannula; performed to reach the root apex and to take bacterial cultures from this area.
[apico- + G. stoma, mouth]