Dental Test 2

Question 1

What is the name for the misalignment of dental arches?

Accepted Answer

Malocclusion

Answer

Malocclusion is the correct term for any deviation from a normal occlusion, meaning an improper alignment of the teeth and the way the upper and lower dental arches fit together. This condition can affect chewing, speech, and overall oral health. Options like gingiva (gums) or diastema (gap between teeth) describe specific oral features, not the general misalignment of arches.

Question 2

Which of these is not a part of the mouth?

Accepted Answer

Pharynx

Answer

The pharynx, commonly known as the throat, is a part of both the digestive and respiratory systems located behind the mouth and nasal cavity. While it connects to the mouth, it is anatomically considered a separate structure. The uvula and tongue, however, are integral components found directly within the oral cavity.

Question 3

Who among these pioneered the field?

Accepted Answer

Edward Angle

Answer

Edward Angle is widely recognized as the 'Father of Modern Orthodontics' due to his pioneering work in the field. He developed the first classification system for malocclusion, which is still used today, and designed many of the early orthodontic appliances. His contributions laid the scientific foundation for the specialty of orthodontics.

Question 4

How many major components does a bracket have?

Accepted Answer

4

Answer

A typical orthodontic bracket generally consists of four major components: the base, which adheres to the tooth; the archwire slot, through which the archwire passes; the tie-wings, used to secure the archwire; and often a hook, for attaching elastics. These parts work together to transmit forces for tooth movement.

Question 5

Which of these bracket components is spot welded to the orthodontic bands?

Accepted Answer

Bracket base

Answer

The bracket base is the component of an orthodontic bracket that is designed to be securely attached to the tooth surface or, in some cases, spot welded to an orthodontic band. When bands are used, typically on molars or premolars, the bracket base provides the strong, stable connection necessary for effective orthodontic force transmission.

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Dental Test 2