EFDA Review Practice Exam Questions And Verified Answers 2024/2025

EFDA Review Practice Exam Questions And Verified Answers 2024/2025 In the Federation Dentaire International System for numbering, the first number represents a _________, while the second number represents a _________. -ANS quadrant, tooth What is the visible portion of the anatomical crown known as? -ANS the clinical crown The area where the roots divide -ANS furcation The point or area where approximating teeth in the same arch touch or meet each other is referred to as the ________. -ANS contact area Where are the TWO purposes of contact areas? -ANS -to keep food from packing between the teeth -help stabilize the dental arches Coronal to the actual division into two or more roots is a concavity that extends to or nearly to the CEJ. This concavity is called -ANS the furrow What is the HARDEST tissue in the body? -ANS enamel What cells form enamel? -ANS ameloblasts The bulk of the tooth is made up of -ANS dentin In permanent teeth, the process of enamel formation is completed about ___ years before eruption. -ANS 3 What is the composition of enamel? -ANS 95% inorganic matter, 5% organic matter and water What is the SECOND hardest material in the body? -ANS dentin What is the composition of dentin? -ANS 70% inorganic, 20% organic, 10% water The three major types of dentin -ANS primary, secondary, reparative What type of dentin is a DEFENSE reaction to an area of injury? -ANS reparative dentin