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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.
Oral–antral communication [ edit ] A variant of the Valsalva maneuver is used to aid diagnosis of oral–antral communication, i.e., the existence of a connection between the oral cavity and the maxillary sinus .
Tilly's antral harpoon trocar: to create an artificial passage into the maxillary sinus through the nose; puncture medial wall of inferior meatuses Tilly's antral bur: to enlarge the artificial passage into the maxillary sinus through the nose made by the harpoon trochar; dilate and smoothen the antrostomy opening
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]
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 ...
[5] Dental maxillary sinusitis. [6] 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 ...
X-ray 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 ...
The approach is mainly from the anterior wall of the maxilla bone. It was introduced by George Caldwell (1893)and Henry Luc (1897). The maxillary sinus is entered from two separate openings, one in the canine fossa to gain access to the antrum and other in the naso antral wall for drainage. [1]