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WorksheetsParafunctional Habits in Periodontology: Questions 1-4
Total questions: 20
Worksheet time: 10mins
Which statement best defines parafunctional habits in the context of the masticatory system?
Normal, purposeful movements that support mastication and speech
Repetitive, non-functional activities involving oral structures
Movements restricted exclusively to phonation
Behavioral routines that directly enhance periodontal health
Identify the most common parafunctional habit that affects the periodontium.
Nail biting
Bruxism
Thumb sucking
Tongue thrusting
Nocturnal bruxism is primarily associated with which condition or classification?
Conscious, voluntary behavior
Sleep-related movement disorder
Dietary patterns with hard foods
Workplace stress as the sole factor
Over the long term, bruxism most commonly leads to which clinical finding on teeth?
Enamel hypoplasia
Attrition facets
Root caries
Enamel opacities
Parafunctional habits may lead to which type of occlusal trauma?
Only primary occlusal trauma
Only secondary occlusal trauma
Both primary and secondary occlusal trauma
Neither type
Primary occlusal trauma occurs when:
Normal forces act on a reduced periodontium
Excessive forces act on a healthy periodontium
Reduced forces act on a healthy periodontium
All forces act only during chewing
Secondary occlusal trauma occurs when:
Normal forces act on a weakened periodontium
Excessive forces act on healthy tissues
Excessive forces act on restored teeth
Forces are absent during sleep
Which clinical sign is commonly associated with bruxism?
Gingival bleeding
Fremitus
Halitosis
Pigmentation
Hyperactivity of which muscle is most linked to bruxism?
Buccinator
Temporalis
Masseter
Superior constrictor
Tooth mobility caused by parafunctional habits is:
Irreversible in all cases
Always associated with bone loss
Often reversible after removing occlusal stress
Indicative of advanced periodontal disease only
Gingival recession from parafunctional habits is mainly due to:
Plaque retention
Chronic mechanical trauma
Hormonal imbalance
Vitamin C deficiency
Which habit most commonly causes flaring of anterior teeth and an anterior open bite?
Bruxism
Thumb sucking
Nail biting
Lip biting
Tongue thrusting typically leads to:
Deep bite
Anterior open bite
Crowding
Midline diastema closure
Which habit can cause buccal mucosal keratosis?
Cheek biting
Bruxism
Mouth breathing
Thumb sucking
Parafunctional habits contribute to periodontal breakdown primarily by:
Increasing local inflammatory mediators
Enhancing plaque formation
Exerting excessive occlusal forces
Causing hormonal changes
In managing parafunctional habits, night guards are used chiefly to:
Treat gingival inflammation
Reduce tooth contact stresses
Improve salivary flow
Increase masticatory efficiency
Bruxism commonly produces wear on:
Only posterior teeth
Only anterior teeth
Teeth involved in guided occlusion
All teeth uniformly
Non-nutritive sucking habits are most harmful when they persist beyond:
1 year
3 years
5 years
12 years
Occlusal trauma from parafunctional habits initially affects the:
Gingiva
Cementum
Periodontal ligament
Pulp
A patient with suspected bruxism shows enlarged masseter muscles. This finding is termed:
Hypertrophy
Atrophy
Calcification
Fibrosis
