MDS PREP
The midpalatal suture is most likely to open at which following age of expansion?
1) 18 years old
2) 13 years old
3) 25 years old
4) 28 years old
Orthodontics
Answer: 2
If a normal SNA = 82 degrees a patient has SNA = 90 degrees. This suggests
1) Maxillary teeth protrusion
2) Maxillary protrusion
3) Mandibular protrusion
4) Mandibular retrusion
Orthodontics
Answer: 2
Fishman"s index is used in relation with
1) Population
2) Hand-wrist radiographs
3) Cephalograms
4) Periodontal diseases
Orthodontics
Answer: 2
At what age child is expected to have 12 primary teeth and 12 erupted permanent teeth
1. 4.5 years
2. 6.5 years
3. 8.5 years
4. 11.5 years
Orthodontics
Answer: 3
"Torque" in orthodontics refers to
1) The change in mesiodistal inclination of teeth
2) The change in labiolingual inclination of teeth
3) The rotation of teeth
4) None of the above
Orthodontics
Answer: 2
You are examining a case with class III incisor relation. Which of the following contribute to poor prognosis
1) Reduced overbite
2) Crowding or lower arch
3) Deviated path of closure
4) Retroclined upper central incisors
Orthodontics
Answer: 1
Which is the most common type of malocclusion in children and youths?
- Anteroposterior problems
- Crowding/malalignment problems
- Transverse problems
- Vertical problems