Orthodontics

Question 1

What is the most common malocclusion

Answer 1

Class I malocclusion (70% of population)

Question 2

Father of Modern Orthodontics

Answer 2

Edward Angle

Question 3

Father of Modern Dentistry

Answer 3

Pierre Fauchard

Question 4

Normal eruption sequence of Maxillary and Mandibular teeth

Answer 4

Maxillary - 61245378
Mandibular - 61234578

Question 5

“Poor man’s Cephalometrics”

Answer 5

Facial Profile Analysis

Question 6

The point between Pogonion and Menton

Answer 6

Gnathion (Gn)

Question 7

Nasion to sella forms what plane

Answer 7

Sella-Nasion plane

Question 8

Menton to Gonion forms what plane

Answer 8

Mandibular plane

Question 9

Porion to orbitale forms what plane?

Answer 9

Frankfurt-Horizontal line

Question 10

Most stable landmark in cephalometric radiograph

Answer 10

Sella

Question 11

Designed to modify growth during mixed dentition both dental and skeletal effects

Answer 11

Functional Appliance

Question 12

Usually used in developing skeletal Class II to hold maxillary growth and to allow mandible to catch up

Answer 12

Headgears

Question 13

Most commonly used orthodontic appliance

Answer 13

Edgewise Appliance

Question 14

Abnormal labiolingual relationship between 1 or more maxillary and mandibular teeth

Answer 14

Anterior Crossbite

Question 15

A crossbite due to buccal displacement of a posterior teeth

Answer 15

Buccal Crossbite

Question 16

What is the initial treatment for a 3-year old patient with thumbsucking habit

Answer 16

Observe/ No treatment

Question 17

Appliance of choice for thumbsucking

Answer 17

Palatal Crib

Question 18

Prevents mesial drifting of permanent 1st molar

Answer 18

SPACE MAINTAINER

Question 19

Mandibular Space Maintainers:

Answer 19

Band and Loop
Lingual Holding Arch
Distal Shoe
Partial Dentures

Question 20

Maxillary Space Maintainers:

Answer 20

Band and Loop
Transpalatal Arch
Nance Appliance
Distal Shoe
Partial Dentures