MDS PREP
Secondary occlusal trauma is seen when
1. Abnormal forces acting on normal periodontium
2. Normal forces acting on normal periodontium
3. Normal forces acting on diseased periodontium
4. All of the above
Pedodontics
Answer: 3
Secondary occlusal trauma is seen when normal forces act on diseased periodontium.
In which of the following, true pocket formation cannot occur
1. ANUG
2. Adult periodontitis
3. Rapidly progressing periodontitis
4. Juvenile periodontitis
Pedodontics
Answer: 1
True pocket formation cannot occur in ANUG.
Radiograph of a periodontal ligament of a tooth which has lost its antagonist shows
1. Widening of the PDL space
2. Narrowing of PDL space
3. Increased density
4. Sclerotic change
Pedodontics
Answer: 2
Radiographs of a periodontal ligament of a tooth that has lost its antagonist show narrowing of the PDL space.
Which of the following instruments has a two-point contact with the tooth
1. Hoe
2. Sickle
3. Currette
4. Cumin scaler
Pedodontics
Answer: 1
The hoe has a two-point contact with the tooth.
Which of the following bony defects cannot be classfied as infrabony?
1. Trough
2. Crater
3. Dehiscence
4. Hemiseptum
Pedodontics
Answer: 3
Dehiscence cannot be classified as an infrabony defect.
The existence of a 2 mm diastema between the fully erupted maxillary permanent central incisors of a 7 year old
child may be attributed to
1. a prominent anterior nasal spine
2 a broad nasal septum
3 failure of fusion of the premaxillae
4. the normal eruption pattern of these teeth
Pedodontics
Answer: 4
A diastema, or space between teeth, can be a normal finding in children, especially during the mixed dentition phase. The presence of a 2 mm diastema between the maxillary central incisors in a 7-year-old is often due to the normal eruption pattern of these teeth, as they may not yet be fully aligned or spaced appropriately.
Dental instrument used with a "push" motion is
1. Hoe
2. Chisel
3. Curette
4. Sickle scaler
Pedodontics
Answer: 2
A chisel is used with a "push" motion.
Technique that is best suited for preparing fine and curved canals
1. Step back
2. Step down
3. Crown down
4. Double flare technique
Pedodontics
Answer: 4
The double flare technique is best suited for preparing fine and curved canals.