Orthodontics NEET MDS Practice Test

1

Orthodontics

The diameter of labial-bow of the maxillary plate
1) 0.5-0.6 mm
2) 0.6-0.8 mm
3) 0.7-0.8 mm
4) 0.8-1.0 mm

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

The labial bow is a component of the maxillary denture framework that helps in stabilizing the denture and providing support. The diameter of the labial bow is typically measured to ensure proper fit and function. The standard range for the diameter of the labial bow is generally accepted to be between 0.7 mm and 0.8 mm

2

Orthodontics

Which of the following is basically not a vestibular appliance
1) Oral screen
2) Activator
3) Lip bumper
4) Frankel appliance

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

Vestibular appliances are designed to influence the vestibular musculature and include oral screen, lip bumper, and Frankel appliance. The activator is an intraoral functional appliance, not vestibular.

3

Orthodontics

If the edgewise bracket is not pressed completely on to a tooth on the mesial side while bonding, the side effect would be
1. intrusion
2. extrusion
3. rotation
4. breakage of bracket

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

we are applying force distally only..force vector will rotate the tooth distally

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