- What is diastema?
A) Tooth discoloration
B) Space between two teeth
C) Overlapping of teeth
D) Misaligned bite
Answer: B - The most common site for diastema in the oral cavity is:
A) Mandibular central incisors
B) Maxillary central incisors
C) Maxillary molars
D) Mandibular molars
Answer: B - Which of the following conditions can cause diastema?
A) Enlarged labial frenum
B) Supernumerary teeth
C) Missing teeth
D) All of the above
Answer: D - Diastema is most commonly observed during:
A) Early mixed dentition phase
B) Late mixed dentition phase
C) Permanent dentition phase
D) Primary dentition phase
Answer: A - A diastema greater than ____ mm usually requires orthodontic treatment.
A) 0.5 mm
B) 1 mm
C) 2 mm
D) 3 mm
Answer: C - Which habit is strongly associated with causing diastema in children?
A) Nail-biting
B) Thumb-sucking
C) Bruxism
D) Mouth breathing
Answer: B - A midline diastema in adults is most commonly caused by:
A) Genetics
B) Tongue thrusting
C) Pathological migration
D) All of the above
Answer: D - What diagnostic tool is used to evaluate the role of frenum in diastema?
A) Radiograph
B) Clinical examination with frenum pull test
C) CBCT
D) Bitewing radiographs
Answer: B - Which syndrome is associated with diastema?
A) Turner syndrome
B) Down syndrome
C) Apert syndrome
D) Crouzon syndrome
Answer: B - What is the treatment of choice for diastema caused by an enlarged labial frenum?
A) Orthodontics alone
B) Frenectomy
C) Veneers
D) Extraction of adjacent teeth
Answer: B - The eruption of which teeth can help reduce physiological diastema in children?
A) Maxillary central incisors
B) Maxillary lateral incisors
C) Canines
D) First molars
Answer: C - A 5-year-old with a 2 mm midline diastema most likely has:
A) Pathological diastema
B) Developmental diastema
C) Habitual diastema
D) Spaced dentition
Answer: B - What is a characteristic sign of diastema caused by a mesiodens?
A) Inverted V-shaped space
B) Vertical displacement of teeth
C) Extra tooth in the midline
D) Loss of alveolar bone
Answer: C - The presence of diastema can lead to:
A) Periodontal issues
B) Speech problems
C) Cosmetic concerns
D) All of the above
Answer: D - Which orthodontic appliance is commonly used to close diastema?
A) Headgear
B) Hawley retainer
C) Fixed braces
D) Functional appliance
Answer: C - What is the first step in managing diastema in adults?
A) Frenectomy
B) Orthodontic referral
C) Identifying the etiology
D) Prosthodontic intervention
Answer: C - Diastema is more prevalent in:
A) Females
B) Males
C) Both equally
D) None of the above
Answer: C - Which restorative treatment is used to close small diastemas?
A) Dental crowns
B) Composite bonding
C) Partial dentures
D) Bridgework
Answer: B - Diastema caused by tongue thrusting can be treated by:
A) Myofunctional therapy
B) Orthodontic intervention
C) Both A and B
D) None of the above
Answer: C - Which of the following is not a contributing factor to diastema?
A) Genetic predisposition
B) Overjet
C) Missing teeth
D) Low frenum attachment
Answer: D