Dental Assistant Practice Exam

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Study for the Dental Assistant Exam. Prepare with flashcards and multiple choice questions. Each question includes hints and explanations to help you succeed. Get ready for your exam today!

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Which teeth are designated by the numbers 7-10 and 24-27?

Molars
Incisors
Cuspids
Premolars

The correct answer is: Incisors

The teeth designated by the numbers 7-10 and 24-27 correspond to the central and lateral incisors, as well as the canines in a standard tooth numbering system. Specifically, in the Universal Numbering System used in dentistry in the United States, the numbers represent: - 7: Maxillary left canine - 8: Maxillary left lateral incisor - 9: Maxillary left central incisor - 10: Maxillary right central incisor - 24: Mandibular right central incisor - 25: Mandibular right lateral incisor - 26: Mandibular right canine - 27: Mandibular left canine These teeth are primarily responsible for cutting and slicing food due to their flat, sharp edges. Because they play a significant role in the initial phase of chewing and are essential for proper alignment and esthetics of the smile, they are classified as incisors. Understanding this classification helps with recognizing dental anatomy and treatment planning, as each type of tooth has specific functions and characteristics in the oral cavity.