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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).
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 ...
Doctors explain the safest and most effective way to blow your nose. Here, experts share how to remove mucus quickly and safely.
Here’s to the search for the next coach of the Dallas Cowboys.. Good luck, prospects. Mike McCarthy gave it a shot, but in five years couldn’t take the franchise any further in the quest for ...
Digital Imaging and Communications in Medicine (DICOM) is a technical standard for the digital storage and transmission of medical images and related information. [1] It includes a file format definition, which specifies the structure of a DICOM file , as well as a network communication protocol that uses TCP/IP to communicate between systems.
A Florida teen who police claim previously killed his father in self-defense is accused of murdering his mother after allegedly telling her, “I’m not a psychopath.”. Collin Griffith, 17, was ...