MDS PREP
Fracture in a mesioocclusal cavity can be prevented by
1) Rounding axiopulpal line angle
2) Increasing pulpal depth
3) Buccolingually divergent walls
4) Providing retention in dentin only
Conservative Dentistry
Answer: 1
Working length of root canal is
1. 0.5 to 1mm short of radiographic apex
2. 1 to 2 mm short of apex
3. Exactly at apex
4. 1 to 2 mm apical to apex
Endodontics
Answer: 1
Radiation dose to patient can be reduced by all of the following except
1. Speed films
2. Filters
3. By increasing target-object distance
4. Decreasing kilovoltage potential
Radiation dose can be reduced by using speed films, filters, and increasing target-object distance.
With the increase in age keratinisation of gingiva
1) Increases
2) Decreases
3) Remains the same
4) Increases and then decreases
Periodontics
Answer: 2
According to Moss, growth of periosteal matrices brings about
1) Translation of microskeleton
2) Transformation of microskeleton
3) Translation of macroskeleton
4) Translation of microskeleton
Orthodontics
Answer: 2
Which of the following is the most frequent cause of anykylosis of the temperomandibular joint
1. Osteoarthritis
2. Traumatic injury
3. Congenital syphilis
4. Traumatic occulusion
Oral Pathology
Answer: 2
The colour of a nitrous oxide cyinder is
1. Red
2. Blue
3. White
4. Black
Oral Surgery
Answer: 2
X-rays were discovered in
1. Nov 1897
2. Oct 1985
3. Nov 1895
4. Nov 1890