COM COM Oral Habits & Behavior Modification 1 — Questions and Answers
Question 1: Which non-nutritive sucking habit is most strongly associated with an anterior open bite in children?
- Bruxism
- Thumb or finger sucking (Correct answer)
- Lip sucking
- Nail biting
Correct answer: Thumb or finger sucking
Prolonged thumb or finger sucking exerts continuous anterior pressure that prevents full eruption of the incisors, creating an anterior open bite.
Question 2: What is the recommended maximum age by which non-nutritive sucking habits should cease to minimize dental effects?
- 12 months
- 18 months
- 36 months (Correct answer)
- 5 years
Correct answer: 36 months
Most professional guidelines recommend elimination of non-nutritive sucking habits by 36 months to reduce the risk of lasting dental and skeletal effects.
Question 3: Which behavior modification technique uses a visual chart and rewards to reinforce a child's progress in habit elimination?
- Aversion therapy
- Positive reinforcement with a star chart (Correct answer)
- Cognitive behavioral therapy
- Systematic desensitization
Correct answer: Positive reinforcement with a star chart
A star chart paired with rewards provides positive reinforcement that motivates children to track and sustain habit elimination.
Question 4: A lip-sucking habit most commonly affects which teeth first?
- Upper and lower molars
- Upper incisors (labioversion) and lower incisors (linguoversion) (Correct answer)
- Lower canines
- Upper premolars
Correct answer: Upper incisors (labioversion) and lower incisors (linguoversion)
Lip sucking draws the lower lip inward, tipping upper incisors forward (labioversion) and lower incisors backward (linguoversion).
Question 5: Which oral appliance is sometimes used as a reminder device to discourage tongue thrusting and thumb sucking?
- Herbst appliance
- Palatal crib (Correct answer)
- Twin block appliance
- Lip bumper
Correct answer: Palatal crib
A palatal crib creates a physical barrier that prevents the tongue or thumb from contacting the anterior palate, interrupting the habit.
Question 6: In behavior modification for oral habits, what is the role of 'habit awareness' training?
- To punish the patient for performing the habit
- To help the patient recognize when and how often the habit occurs (Correct answer)
- To physically prevent the habit through appliance use
- To introduce an aversion stimulus
Correct answer: To help the patient recognize when and how often the habit occurs
Habit awareness training increases the patient's conscious recognition of unconscious habitual behaviors, which is the first step toward voluntary control.
COM COM Oral Habits & Behavior Modification 1
Which non-nutritive sucking habit is most strongly associated with an anterior open bite in children?