The roof is formed by floor of the orbit.
Floor of antrum.
The medial wall of the antrum coincides with the lateral wall of the nasal cavity and is the most complex of the various walls of the sinus see figure 38 6.
It is traversed by infraorbital nerves and vessels.
The upper aspect corresponds to the middle meatus.
On the nasal aspect the lower section of the medial wall corresponds to the lower meatus and floor of the nasal fossa.
The antral roof and thus the orbital floor is the thinnest wall of the orbit and the most vulnerable to trauma.
The film is about a young boy and girl that enter a forest and dig a hole to hell.
It is obliquely crossed in its lateral one third by the infraorbital canal containing the infraorbital nerve.
Fractures of the maxillo facial skeleton.
Normal appearance of the antra on conventional radiographs an antrum appears radiographically as a radiolucent cavity in the maxilla with well defined dense corticated radiopaque margins or walls.
A cavity or chamber.
The roots of the upper premolars and molars and the floor of the maxillary antrum are closely related and share a common innervation.
The roof is the orbital floor.
A floor related to the apices of the upper posterior teeth.
An trum pl.
Once the flap.
The flap is raised unilaterally using a 0 degree nasal endoscope.
As one programmer observed of antrum you don t watch the film the film watches you.
Mastoid antrum an air space in the mastoid portion of the temporal bone communicating with the middle ear and the mastoid cells.
The posterior wall forms the anterior border of the pterygopalatine fossa.
Summary of the importance of the maxillary antrum to dental surgery.
Pyloric antrum.
Break in the continuity of one or more of the antral walls depending on the type of fracture opacity or fluid level within the antral cavity.
Break in the continuity of the floor characteristic features of acute or chronic sinusitis in the antrum.
As a result dental symptoms and antral symptoms can mimic each other.
An tra antrums l.
The medial aspect of the roof is the floor of one or more ethmoid cells.
Local flaps step 1.
In some cases the floor can be perforated by the apices of the teeth.
Raise the flap using blunt dissecting instruments such as a cottle elevator over a wide area.
Use a needle tip monopolar.
Projecting into the floor of the antrum are several conical processes corresponding to the roots of the first and second maxillary molar teeth.
