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An oroantral fistula (OAF) is an epithelialized oroantral communication (OAC), which refers to an abnormal connection between the oral cavity and the antrum. [1] The creation of an OAC is most commonly due to the extraction of a maxillary tooth (typically a maxillary first molar) which is closely related to the antral floor.
Furthermore, the drainage orifice lies near the roof of the sinus, and so the maxillary sinus does not drain well, and infection develops more easily. The maxillary sinus may drain into the mouth via an abnormal opening, an oroantral fistula, a particular risk after tooth extraction.
The technique is named after Antonio Maria Valsalva, [2] [3] a 17th-century physician and anatomist from Bologna whose principal scientific interest was the human ear. He described the Eustachian tube and the maneuver to test its patency (openness).
Three teens face charges after a Marta bus driver, identified as Leroy Ramos, was killed, officials say. It was a dispute over a $2.50 bus fare. Now a bus driver is dead and 3 teens are charged.
Michael Brewer, one-half of Brewer & Shipley, has died. He was 80. On Tuesday, Dec. 17, his musical partner, Tom Shipley, confirmed the news of his death on Facebook
Intravenous sugar solution, also known as dextrose solution, is a mixture of dextrose (glucose) and water. [1] It is used to treat low blood sugar or water loss without electrolyte loss. [ 2 ] Water loss without electrolyte loss may occur in fever , hyperthyroidism , high blood calcium , or diabetes insipidus . [ 2 ]
Israeli Prime Minister Benjamin Netanyahu on Thursday accused Hamas of backing out of a cease-fire deal to release hostages and bring a pause to more than a year of fighting.
The second phase is a slow release of newly formed vesicles that are triggered regardless of the blood sugar level. Glucose enters the beta cells and goes through glycolysis to form ATP that eventually causes depolarization of the beta cell membrane (as explained in Insulin secretion section of this article). The depolarization process causes ...