TheoryDental Assistant DANB Practice Test Video
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Q1In the Universal Numbering System used in the United States, which tooth is designated number 1?
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✓ Correct answer: The maxillary right third molar
The Universal System numbers permanent teeth 1 through 32, beginning with the maxillary right third molar (#1) and proceeding clockwise to the mandibular right third molar (#32).
Q2Using the Universal Numbering System, which tooth is number 32?
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✓ Correct answer: The mandibular right third molar
Numbering ends at the mandibular right third molar (#32), the last tooth reached when moving from the upper right around to the lower right.
Q3How many teeth are present in the complete primary (deciduous) dentition?
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✓ Correct answer: 20
The primary dentition has 20 teeth: two incisors, one canine, and two molars per quadrant. There are no premolars in the primary set.
Q4How many teeth are present in the complete permanent dentition?
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✓ Correct answer: 32
The permanent dentition normally has 32 teeth, including third molars: two incisors, one canine, two premolars, and three molars per quadrant.
Q5Which tooth surface faces the tongue on mandibular teeth?
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✓ Correct answer: Lingual
The lingual surface faces the tongue. On maxillary teeth this surface is sometimes called palatal because it faces the palate.
Q6The surface of a posterior tooth that faces the cheek is called the:
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✓ Correct answer: Buccal surface
Buccal refers to the surface of premolars and molars adjacent to the cheek. The general term facial covers both buccal (posterior) and labial (anterior) surfaces.
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