CMT Oral Habits & Parafunctional Behaviors 2

Question 1

Which parafunctional habit is most strongly associated with temporomandibular joint (TMJ) disorders and myofascial pain?

Accepted Answer

Bruxism (teeth grinding/clenching)

Answer

Digit sucking

Answer

Tongue thrusting

Answer

Lip biting

Question 2

What is the primary orofacial development concern when pacifier use continues beyond age 2?

Accepted Answer

Malocclusion, particularly anterior open bite and posterior crossbite

Answer

Increased risk of dental caries

Answer

Delayed speech sound acquisition

Answer

Temporomandibular joint inflammation

Question 3

Habitual lower lip biting or sucking most commonly produces which dental finding?

Accepted Answer

Proclination of maxillary incisors and retroclination of mandibular incisors

Answer

Posterior crossbite

Answer

Class III skeletal tendency

Answer

Posterior open bite

Question 4

Which behavioral modification technique is most commonly recommended as first-line treatment for thumb sucking in cooperative children?

Accepted Answer

Positive reinforcement with reward charts

Answer

Fixed palatal habit reminder appliance

Answer

Aversive taste therapy (bitter nail coating)

Answer

Occlusal splint during sleep

Question 5

A palatal crib or 'hay rake' appliance is primarily designed to interrupt which oral parafunctional habit(s)?

Accepted Answer

Tongue thrusting and thumb/digit sucking

Answer

Bruxism

Answer

Lip biting

Answer

Cheek biting

Question 6

Chronic mouth breathing as a parafunctional resting pattern most commonly leads to which orofacial change?

Accepted Answer

Narrowing of the maxillary arch with a high-vaulted palate

Answer

Widening of the maxillary arch

Answer

Anterior mandibular prognathic growth

Answer

Decreased nasal airway resistance

Question 7

The term 'interdental tongue posture at rest' refers to which condition?

Accepted Answer

The tongue resting between the upper and lower anterior teeth

Answer

Tongue placement touching the upper posterior molars

Answer

The tongue pressed firmly against the entire hard palate

Answer

Posterior tongue elevation during phonation