Tests for controlling the achievement of specific learning objectives
Parents of a 4 year-old child attended an orthodontist because of the absence of the contact of the frontal teeth. On examination: enlargement of the lower height third of the face, tension at meeting lips at rest and during swallowing. An orthodontist admitted a vestibular and oral plate for using at night and 1 hour at daytime.
How is the appliance characterized according to classification of orthodontic appliances?
A. Preventive, extra-oral, archwire, functional, stationary.
B. Preventive, vestibular -oral, plate, functional, removable.
C. Curative, unimaxillary, archwire, functional, stationary, removable.
D. Combined, bimaxillary, frame, intra-oral.
E. Preventive, plate, reciprocal, mechanical, fixed.
Parents of a 3 year-old child complain to slow chewing of meal. At anamnesis there was bottle-feeding, long-term usage of babys dummy, soft meal. On examination: the profile is convex, the height of the lower third of the face is decreased, and the mental fold is defined. All the teeth are deciduous, dental arches are semicircular; there is the crowding of the lower teeth. 82, 81, 71, 72 contact with the hard palate mucous. There is 5 mm overjet in the frontal segment. The distal surfaces of the lower second molars are more mesial than that of the upper.
What is the most convenient treatment method (methods) for this case?
A.The biological method.
B. The surgical method.
C. The appliance therapy.
D. The biological and surgical methods.
E. The prosthodontic treatment.
On examination of a 9 year-old girl an orthodontist put a preliminary diagnosis: the mesial occlusion. The father has a facial signs such as concave profile, prominent chin. Intra-orally: the protrusion of the lower teeth. It is determined Class III in relationship of the first permanent molars and canines.
What should the treatment be started with?
B. The prosthodontic therapy.
C. The extraction of the first lower premolars.
D. Correction of the tongue frenulum.
E. To eliminate growth of the mandible.
An 11 year-old patient was admitted to an orthodontist with complaint to the face appearance disturbance. The girl has got a convex profile, displacement of the chin forward, infantile swallowing. The form of the upper and lower arches is correct. The reverse sagittal space is 4 mm, the depth of a vertical overlap is to the whole height of the crowns, the upper canines occlude with the cusps of the lower premolars. At 4 probe of Ilyina-Marcosyan test the mandible is replaced from forward position to central occlusion.
What is the main goal of the treatment?
A.Correction of the form of the dental arches.
B. Stimulating of the maxilla growth.
C. Retard of the mandible growth.
D. Stimulating of the mandible growth and retarding of the maxilla growth.
E. Correction of the position of the mandible.
A 10 year-old child attended an orthodontist because of the improper position of the frontal teeth. On examination: the profile is convex due to retroposition of the chin; there is a tension at meeting lips at rest and during swallowing. The upper incisors are inclined forward; the lower incisors are inclined backward. The relationship of the first permanent molars is according to Class II by Angle. An orthodontist admitted a Frankel II appliance.
What is the mode of action of the functional appliance?
A. Using of active component such as spring and screw.
B. Moving of the teeth to the extraction spot.
C. Using forces generated by the masticator and facial musculature.
D. Everything is suitable.
E. No right answer.
Patient N aged 8 years. In history there was prolonged disturbance of the nasal breathing. On examination of the oral cavity an orthodontist revealed bilateral cross-bite because of narrowing of the upper arch. The removable mechanic appliance was made for the treatment of the child.
What should be the design of the appliance to treat the child?
A. Baseplate, retention clasps, screw, elastics.
B. Baseplate, retention clasps, screw.
C. Baseplate with a buccal capping, retention clasps, screw.
D. Framework with cheek shields and pilots.
E. Baseplate with a buccal capping, bands, screw, labial bow.
A 12 year-old boy visited an orthodontist complaining to the crowding of the upper teeth. On examination: the face is proportional, symmetric, the lips don't meet together at rest, breathing is mixed. All teeth are permanent. The midline between the upper and lower incisors coincides, but a bilateral crossbite is determined in the buccal segments. An upper fixed appliance with a screw (rapid maxilla expender) to widen the upper arch is used for the treatment of the patient.