Similar questions:
Orthodontic tooth movement is most efficient
when the root is within alveolar bone.NDEB released questions part 2 set 1
Closure of a 2mm maxillary midline diastema by orthodontic treatment is best accomplished
after complete eruption of the maxillary canines.NDEB released questions part 2 set 1
Among the following, which may be associated with root resorption?
1. Excessive orthodontic forces.
2. Periapical granuloma.
3. Cementoma.
4. Hypercementosis.
5. Traumatic injury.
(1) (2) (5)
NDEB released questions set 2
The best time to begin interceptive orthodontic treatment for a patient with a skeletal Class II malocclusion is
several months prior to the prepubertal growth spurt.NDEB released questions part 2 set 2
Crowding of the lower incisors following orthodontic alignment
cannot be predicted from characteristics of the original malocclusionNDEB released questions part 2 set 2
Frenectomy is indicated for orthodontic treatment of a diastema between two upper incisors, the frenectomy should be performed:
After the diastema has closedNDEB released questions 2012 online set 1
The high labial removable orthodontic appliance is most useful for
retracting labially tipped and spaced maxillary incisors.NDEB released questions part 2 set 2
Adult orthodontics is limited by the
health of the supporting structuresNDEB released questions part 2 set 2
During orthodontic therapy, the periodontal ligament (membrane) radiographically appears
increased in widthNDEB released questions part 2 set 3
Doubling the diameter of a round stainless steel orthodontic wire decreases its springiness how many times?
16NDEB released questions part 2 set 5
A 28 year old patient who has a high DMFS score wants orthodontic treatment to straighten teeth. Which of the following is the most appropriate initial step in management of this case?
Caries risk assessmentNDEB released questions part 2 set 5
When a mandibular second molar that has tipped mesially following extraction the adjacent first is uprighted by fixed orthodontic therapy (e.g. fixed appliance on 47, 45, 44 and 43) the following tooth movements usually occur:
1. extrusion of the second molar.
2. lingual tipping of the second molar.
3. intrusion of the anchor unit.
4. buccal tipping of the anchor unit.
All of the above
NDEB released questions part 2 set 9
Root resorption of permanent teeth may be associated with
1. excessive orthodontic forces.
2. chronic periradicular periodontitis.
3. traumatic injury.
4. periapical cemento-osseous dysplasia.
(1) (2) (3)
NDEB released questions part 2 set 10
The rate of orthodontic tooth movement is greater in adolescents compared with adults due to
differences in tissue bone reaction.NDEB released questions part 2 set 11
The yield strength of an orthodontic wire is
higher than the proportional limit.NDEB released questions part 2 set 11
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