<P> Antral lavage is a surgical procedure in which a cannula is inserted into the opening of the maxillary sinus via the inferior meatus to allow irrigation and drainage of the sinus . It is also called proof puncture as the presence of an infection can be proven during the procedure . Upon presence of infection , it can be considered as therapeutic puncture . </P>
the washing or irrigating of the sinuses of patients who are failing to respond to treatment
Antral lavage