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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.
The palatal lift however, is used when there is not enough palatal movement. It raises the palate and reduces the range of movement necessary to provide adequate closure to separate the nasal cavity from the oral cavity. Speech bulbs and palatal lifts aid in velopharyngeal closure and do not obturate a fistula. A speech bulb, yet another type ...
An OAC that is smaller than 2mm can heal spontaneously i.e. closure of the opening. [11] Those that are larger than 2mm have a higher chance of developing into oro-antral fistula (OAF). [11] The passage is only defined as an OAF if it is persistent and lined by epithelium. [11]
More evidence is needed to assess the use of antibiotics prior to treatment and the use of wound closure to prevent contamination of the bone, as the quality of evidence evaluated was low. [ 49 ] Patients may be advised to limit alcohol consumption, stop smoking, and practice good dental hygiene.
Xray showing a sinus lift in the left upper jaw Sinus lift surgery, 3D Illustration. Maxillary sinus floor augmentation [1] (also known as a sinus lift, sinus graft, sinus augmentation, or sinus procedure) is a surgical procedure that aims to increase the amount of bone in the posterior maxilla, in the area of the premolar and molar teeth by lifting the lower sinus membrane and placing a bone ...
If the membrane is perforated, however, it is a "sinus communication". These two conditions are treated differently. In the event of a sinus communication, the dentist may decide to let it heal on its own, or, may need to surgically obtain primary closure—depending on the size of the exposure and the likelihood of the patient to heal.
Prostheses are used for nonsurgical closure in a situation of velopharyngeal dysfunction. [ 2 ] [ 30 ] There are two types of prosthesis: the speech bulb and the palatal lift prosthesis . [ 2 ] The speech bulb is an acrylic body that can be placed in the velopharyngeal port and can achieve obstruction.
Oro-antral fistula if associated with sinusitis. [7] Acute Bacterial Rhinosinusitis. Though it is indicated only in severe cases not as a regular treatment. [8] It can be also used as diagnostic procedure for: Carrying out culture and sensitivity test if the returning fluid is mucopurulent or purulent in Chronic Sinusitis. [9]