After extraction of tooth 27 the dental surgeon suspected that the maxillary sinus was perforated. To clarify this provisional diagnosis the doctor desided to conduct an oronasal communication test (Valsalva maneuver). What manipulations are necessary for this test?

Answer options

1. Ask the patient to blow through the nose, while observing the socket of 27
2. Ask the patient to inhale through the nose, pinch the nostrils together, and exhale through the mouth
3. Ask the patient to blow through the mouth, while observing the socket of 27
4. Pinch the nostrils together to occlude the patient’s nose and ask the patient to blow through the nose, while observing the socket of 27
5. Pinch the nostrils together to occlude the patient’s nose and ask the patient to blow through the mouth, while observing the socket of 27