COM Nasal Breathing & Airway Function 2

Question 1

During orofacial myofunctional assessment, the mirror fogging test (Glatzel mirror) is used to:

Accepted Answer

Detect airflow from each nostril during nasal breathing

Answer

Assess lip seal strength during rest

Answer

Evaluate tongue posture during quiet breathing

Answer

Measure palatal vault height

Question 2

Which craniofacial characteristic is most commonly associated with long-term habitual mouth breathing in children?

Accepted Answer

Elongated face with narrow upper arch and high palatal vault

Answer

Increased transverse palatal width

Answer

Reduced vertical facial dimension

Answer

Class III malocclusion with anterior crossbite

Question 3

An 'obligate mouth breather' in orofacial myofunctional practice is best defined as a patient who:

Accepted Answer

Cannot breathe nasally due to anatomical or structural obstruction

Answer

Chooses to breathe through the mouth out of habit

Answer

Breathes through the mouth only during physical exertion

Answer

Has been conditioned to prefer mouth breathing through environmental factors

Question 4

Gingival inflammation concentrated along the upper anterior teeth, in the absence of poor plaque control, most commonly suggests:

Accepted Answer

Habitual mouth breathing causing localized xerostomia

Answer

Vitamin C deficiency causing gingival fragility

Answer

Orthodontic bracket irritation from recent appliance placement

Answer

Aggressive brushing trauma

Question 5

Forward head posture observed during orofacial myofunctional assessment is most strongly associated with:

Accepted Answer

Habitual mouth breathing and low tongue posture

Answer

Temporomandibular joint dysfunction in isolation

Answer

Proper nasal breathing mechanics with strong neck extensors

Answer

Increased nasal airway volume

Question 6

The 'adenoid face' associated with chronic mouth breathing in children typically includes:

Accepted Answer

Narrow upper arch, increased anterior vertical dimension, and open mouth posture

Answer

Wide nasal passages, low palatal vault, and Class I occlusion

Answer

Prognathic mandible, deep bite, and wide palate

Answer

Flattened midface, Class III malocclusion, and wide nostrils

Question 7

When structural nasal obstruction is suspected during orofacial myofunctional evaluation, the most appropriate first step is to:

Accepted Answer

Refer the patient to an otolaryngologist (ENT) for evaluation and clearance

Answer

Begin nasal breathing exercises immediately to strengthen nasal airway patency

Answer

Recommend nasal strips as the primary intervention

Answer

Prescribe nasal saline rinses and reassess in six weeks before any referral