MDS PREP
Band and loop space maintainer is a
1) Passive appliance
2) Active appliance
3) Both of the above
4) None of the above
Pedodontics
Answer: 1
A band and loop space maintainer is a passive appliance used in pediatric dentistry to maintain space for a permanent tooth when a primary tooth is lost prematurely. It does not exert any active forces on the teeth, hence categorized as a passive appliance.
If prematurity occurs in retruded contact position (RCP or Centric relation) on maxillary premolar, the surface of tooth involved is
1. Mesial of lingual cusp
2. Mesial of facial cusp
3. Distal of facial cusp
4. Distal of lingual cusp
Pedodontics
Answer: 1
If prematurity occurs in retruded contact position (RCP) on maxillary premolar, the surface of the tooth involved is the mesial of the lingual cusp.
In AIDS patients, occurrence of severe and acute periodontal disease is due to
1. Reduced number of T cells
2. Release of lymphokines
3. Cytotoxic reaction
4. All of the above
Pedodontics
Answer: 4
Severe and acute periodontal disease in AIDS patients is due to reduced number of T cells.
While sharpening curettes and sickles, the internal angle of ............... must be preserved between the face and lateral surface
1. 50-60
2. 60-70
3. 70-80
4. 80-90
Pedodontics
Answer: 3
While sharpening curettes and sickles, the internal angle of 70-80 degrees must be preserved between the face and lateral surface.
How many osseous walls are present in one-walled vertical defects?
1. One wall present
2. Two walls present
3. Three walls present
4. Four walls present
Pedodontics
Answer: 1
In one-walled vertical defects, one wall is present.
In a deep pocket of 6 mm, calculus is found only as a thin ring at apical third. It may be due to
1. Calculus formation occurs only at bottom of the pocket
2. Fracture and dislodgement of enamel part of calculus
3. Both A and B
4. None of the above
Pedodontics
Answer: 2
In a deep pocket of 6 mm, calculus found only as a thin ring at the apical third may be due to fracture and dislodgement of the enamel part of calculus.
Gingival clefts are caused by
1. Trauma from occlusion
2. Faulty brushing technique
3. Normal frenal pull
4. Improper use of floss
Pedodontics
Answer: 1
Gingival clefts are caused by trauma from occlusion.
Trauma from occlusion does not affect
1. Alveolar bone & enamel
2. Cementum & enamel
3. Gingiva & epithelial attachment
4. Periodontal ligament & cementum
Pedodontics
Answer: 3
Trauma from occlusion does not affect the gingiva and epithelial attachment.