EFDA OHIO BOARD PREP HOTTEL BOOK EXAM QUESTIONS AND ANSWERS ALREADY GRADED A+| 100%
VERIFIED SOLUTIONS………...
Core Domains
Dental Anatomy and Tooth Morphology
Occlusion and Articulation
Cavity Preparation Principles and Techniques
Restorative Materials and Instrumentation
Impression Materials and Techniques
Provisional Coverage and Temporization
Radiography and Image Interpretation
Pharmacology and Local Anesthesia
Infection Control and Safety Protocols
Ohio State Dental Board Rules and Jurisprudence
Introduction
,This comprehensive examination is designed to assess the knowledge and competencies required for the Expanded
Functions Dental Assistant (EFDA) Ohio Board Certification Exam, as administered by the Ohio State Dental Board.
The exam evaluates understanding of dental anatomy, occlusion, cavity preparation, restorative materials,
impression techniques, provisional coverage, radiography, pharmacology, infection control, and Ohio-specific
regulations. Questions are structured as multiple-choice and scenario-based items that require critical thinking,
application of clinical principles, and sound professional judgment. Emphasis is placed on real-world clinical
decision-making, patient safety, regulatory compliance, and the practical skills necessary for success as an EFDA in
Ohio.
SECTION ONE: QUESTIONS 1–100
Question 1
Which tooth is considered the largest of the permanent teeth?
A. Maxillary first molar
B. Mandibular first molar
C. Maxillary central incisor
D. Mandibular canine
🟢A
,🔴 RATIONALE: The maxillary first molar is the largest permanent tooth overall. It has a broad occlusal table and
typically has four cusps. The mandibular first molar (B) is large but slightly smaller; central incisors (C) and
canines (D) are not the largest.
Question 2
The primary groove that separates the mesial and distal marginal ridges from the central fossa of a maxillary
first molar is called the:
A. Central groove
B. Buccal groove
C. Lingual groove
D. Transverse groove
🟢A
🔴 RATIONALE: The central groove runs mesiodistally across the occlusal surface of the maxillary first molar,
separating the mesial and distal marginal ridges and connecting the central fossa. The buccal groove (B)
extends onto the buccal surface; the lingual groove (C) extends onto the lingual surface.
Question 3
In a Class I cavity preparation, the margin of the preparation is placed:
, A. On the occlusal surface only
B. On the proximal surfaces
C. On the gingival third of the tooth
D. On the incisal edge
🟢A
🔴 RATIONALE: A Class I cavity preparation involves the occlusal surface of posterior teeth (premolars and
molars) or the lingual surface of anterior teeth. The margin is placed on the occlusal surface, not on proximal
surfaces (B), gingival third (C), or incisal edge (D).
Question 4
What is the normal range for the angulation of the mandibular first molar roots?
A. Mesial convergence
B. Distal convergence
C. Straight alignment
D. Buccal convergence
🟢A
🔴 RATIONALE: The roots of the mandibular first molar typically converge mesially, meaning they angle toward
the mesial direction. This is an important consideration for endodontic access and extraction. Distal
convergence (B) is not typical for mandibular first molars.
VERIFIED SOLUTIONS………...
Core Domains
Dental Anatomy and Tooth Morphology
Occlusion and Articulation
Cavity Preparation Principles and Techniques
Restorative Materials and Instrumentation
Impression Materials and Techniques
Provisional Coverage and Temporization
Radiography and Image Interpretation
Pharmacology and Local Anesthesia
Infection Control and Safety Protocols
Ohio State Dental Board Rules and Jurisprudence
Introduction
,This comprehensive examination is designed to assess the knowledge and competencies required for the Expanded
Functions Dental Assistant (EFDA) Ohio Board Certification Exam, as administered by the Ohio State Dental Board.
The exam evaluates understanding of dental anatomy, occlusion, cavity preparation, restorative materials,
impression techniques, provisional coverage, radiography, pharmacology, infection control, and Ohio-specific
regulations. Questions are structured as multiple-choice and scenario-based items that require critical thinking,
application of clinical principles, and sound professional judgment. Emphasis is placed on real-world clinical
decision-making, patient safety, regulatory compliance, and the practical skills necessary for success as an EFDA in
Ohio.
SECTION ONE: QUESTIONS 1–100
Question 1
Which tooth is considered the largest of the permanent teeth?
A. Maxillary first molar
B. Mandibular first molar
C. Maxillary central incisor
D. Mandibular canine
🟢A
,🔴 RATIONALE: The maxillary first molar is the largest permanent tooth overall. It has a broad occlusal table and
typically has four cusps. The mandibular first molar (B) is large but slightly smaller; central incisors (C) and
canines (D) are not the largest.
Question 2
The primary groove that separates the mesial and distal marginal ridges from the central fossa of a maxillary
first molar is called the:
A. Central groove
B. Buccal groove
C. Lingual groove
D. Transverse groove
🟢A
🔴 RATIONALE: The central groove runs mesiodistally across the occlusal surface of the maxillary first molar,
separating the mesial and distal marginal ridges and connecting the central fossa. The buccal groove (B)
extends onto the buccal surface; the lingual groove (C) extends onto the lingual surface.
Question 3
In a Class I cavity preparation, the margin of the preparation is placed:
, A. On the occlusal surface only
B. On the proximal surfaces
C. On the gingival third of the tooth
D. On the incisal edge
🟢A
🔴 RATIONALE: A Class I cavity preparation involves the occlusal surface of posterior teeth (premolars and
molars) or the lingual surface of anterior teeth. The margin is placed on the occlusal surface, not on proximal
surfaces (B), gingival third (C), or incisal edge (D).
Question 4
What is the normal range for the angulation of the mandibular first molar roots?
A. Mesial convergence
B. Distal convergence
C. Straight alignment
D. Buccal convergence
🟢A
🔴 RATIONALE: The roots of the mandibular first molar typically converge mesially, meaning they angle toward
the mesial direction. This is an important consideration for endodontic access and extraction. Distal
convergence (B) is not typical for mandibular first molars.
