MDS PREP
Which of the following teeth have natural tendency to drift mesially
1) Primary incisors
2) Primary canines
3) Permanent incisors
4) Permanent molars
Orthodontics
Answer: 4
When mixed dention changes to permanent dentition, incompetent lip may
1) Become more incompetent
2) Become hypertonic
3) Straighten the upper central incisors
4) Be held together of self consciousness
Orthodontics
Answer: 4
A girl of 10 years reports for examination immediately after exfoliation of second primary molar. She has full complement set of teeth in good occlusion. Line of treatment
1) No treatment, only observation
2) Place a lingual arch space maintainer
3) Place a distal shoe space after radiographic findings
4) Treatment depends upon the radiographic findings
Orthodontics
Answer: 4
Which of the following is not a procedure of preventive orthodontics
1) Topical fluoride applications
2) Serial extractions
3) Lip guard
4) Thumb sucking correction
Orthodontics
Answer: 2
Which of the following is the most important factor to be considered before attempting to close a midline diastema using a removable appliance?
1) The size of the teeth
2) Age of the patient
3) Vitality of the teeth
4) Amount of overjet
Orthodontics
Answer: 4
Mouth breathing with enlarged adenoids and tonsils may be best described as
1) Anatomic
2) Obstructive
3) Physiologic
4) Habitual
Orthodontics
Answer: 2
Studies show that individuals with untreated malocclusion are at greater risk for caries than those whose teeth have been straightened. Studies show that individuals with untreated malocclusion are at greater risk for periodontal disease than those whose teeth have been straightened.
- The first statement is true; the second is false.
- The first statement is false; the second is true.
- Both statements are true.
- Both statements are false.