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Exam (elaborations)

EFDA Practice Questions and Answers 100% Solved

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EFDA Practice Questions

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  • November 8, 2024
  • 15
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • EFDA
  • EFDA
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julianah420
EFDA Practice Questions

In the Federation Dentaria International System for numbering, the first number
represents a _________, while the second number represents a _________. - answer
quadrant, tooth

What is the visible portion of the anatomical crown known as? - answer the clinical
crown

The area where the roots divide - answer furcation

The point or area where approximating teeth in the same arch touch or meet each other
is referred to as the ________. - answer contact area

Where are the TWO purposes of contact areas? - answer-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 - answer the furrow

What is the HARDEST tissue in the body? - answer enamel

What cells form enamel? - answer ameloblasts

The bulk of the tooth is made up of - answer dentin

In permanent teeth, the process of enamel formation is completed about ___ years
before eruption. - answer3

What is the composition of enamel? - answer95% inorganic matter, 5% organic matter
and water

What is the SECOND hardest material in the body? - answer dentin

What is the composition of dentin? - answer70% inorganic, 20% organic, 10% water

The three major types of dentin - answerprimary, secondary, reparative

What type of dentin is a DEFENSE reaction to an area of injury? - answerreparative
dentin

, What has the HIGHEST fluoride content of all the materialized tissue? -
answercementum

The two types of cementum - answeracellular and cellular

What type of cementum ACTIVELY produces new layers of cementum throughout the
life of the tooth? - answercellular

What teeth have the cusp of Carabelli? - answermaxillary first molars

The ridge formed by the union of two triangular ridges - answertransverse ridge

The spillway provides an escape for food from the _______ surface during the
mastication (chewing) process. - answerocclusal

The uncut tooth structure adjacent to the cavity prep - answercavosurface

line angle - answertwo walls

point angle - answerthree walls

A thin soft tissue that is loosely attached to the underlying bone - answeralveolar
mucosa

T or F
Undue stress continually placed on the body can contribute to lower back pain,
circulatory problems, muscle aches, and tension - answerTrue

When seated, the thighs should be _______ to the floor - answerparallel

The chair is raised or lowered to achieve ____ to ____ inches distance between the
patient's face and the operator's face - answer12 to 14

The back of the patient chair is raised until its angle to the floor is ______ degrees -
answer25-45

The three basic parts of an instrument are - answerthe working end, shank, and handle

When seated, the lower legs should be _______ to the floor - answerperpendicular

If the operator needs to lean forward, it should be done by bending at the - answerhips
or neck

What will increase visibility to the lingual surfaces of the mandibular anterior teeth? -
answerhaving the patient tilt their chin down

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