EFDA Ohio Board Final Exam Study Guide 2026
Complete Questions with Correct Detailed Answers ||
100% Guaranteed Pass <Recent Version>
Section 1: Dental Anatomy, Morphology, and Terminology (15 Questions)
1. The primary function of the premolars is:
a) Tearing food
b) Grinding and crushing food
c) Incising food
d) Esthetics
Answer: b) Grinding and crushing food. Premolars, or bicuspids, are transitional
teeth located between canines and molars, designed for grinding and crushing food
particles.
2. Which permanent tooth typically has a cusp of Carabelli?
a) Maxillary first premolar
b) Mandibular first molar
c) Maxillary first molar
d) Mandibular second premolar
Answer: c) Maxillary first molar. The cusp of Carabelli is a fifth, non-functional
cusp found on the mesiolingual surface of most maxillary first molars.
3. The "line angle" of a tooth is defined as the:
a) Junction of two surfaces on the same tooth
b) Junction of three surfaces on the same tooth
c) Area of greatest curvature on a tooth surface
d) Space between two adjacent teeth
Answer: a) Junction of two surfaces on the same tooth. For example, the
distolingual line angle is the junction of the distal and lingual surfaces.
4. The primary mandibular second molar resembles the permanent:
a) Mandibular first premolar
b) Mandibular first molar
c) Mandibular second molar
d) Maxillary first molar
,Answer: c) Mandibular second molar. It has a similar design with four cusps,
making it distinct from the primary first molar, which has an unusual "mulberry"
shape.
5. The curvature of the cementoenamel junction (CEJ) is greatest on which
surface of a tooth?
a) Facial
b) Lingual
c) Mesial
d) Distal
Answer: c) Mesial. The CEJ curves more apically on the mesial surface of a tooth
than on the distal surface.
6. Which tooth has the smallest faciolingual diameter in the permanent
dentition?
a) Mandibular central incisor
b) Maxillary lateral incisor
c) Mandibular lateral incisor
d) Maxillary central incisor
Answer: a) Mandibular central incisor. It is the smallest and most symmetric
tooth in the permanent dentition.
7. The term "succedaneous" refers to:
a) Teeth that are non-carious
b) Permanent teeth that replace primary teeth
c) Teeth with supernumerary roots
d) The molars in the permanent dentition
Answer: b) Permanent teeth that replace primary teeth. Incisors, canines, and
premolars are succedaneous. Permanent molars are non-succedaneous.
8. The widest mesiodistal crown dimension of any permanent tooth is found
on the:
a) Maxillary first molar
b) Mandibular first molar
c) Maxillary canine
d) Mandibular second molar
, Answer: b) Mandibular first molar. It is generally the largest tooth in the
mandibular arch.
9. The "triangular ridge" is a landform on a:
a) Molar
b) Premolar
c) Canine
d) All posterior teeth
Answer: d) All posterior teeth. It is a ridge that descends from the tip of a cusp
towards the central area of the occlusal surface.
10. The primary maxillary second molar resembles the permanent:
a) Maxillary first premolar
b) Maxillary first molar
c) Maxillary second molar
d) Mandibular first molar
Answer: b) Maxillary first molar. It has a similar cusp arrangement, including a
distinct cusp of Carabelli.
11. The height of contour on the facial surface of posterior teeth is located in
the:
a) Cervical third
b) Middle third
c) Occlusal third
d) It varies by tooth
Answer: a) Cervical third. This contour helps to deflect food away from the
gingiva and directs it over the gingival margin.
12. The "contact area" on the distal surface of a permanent maxillary first
molar that articulates with the mesial of the second molar is located in which
third?
a) Occlusal third
b) Middle third
c) Cervical third
d) Junction of occlusal and middle thirds
Answer: b) Middle third. Contact areas generally move cervically from anterior
to posterior teeth.
Complete Questions with Correct Detailed Answers ||
100% Guaranteed Pass <Recent Version>
Section 1: Dental Anatomy, Morphology, and Terminology (15 Questions)
1. The primary function of the premolars is:
a) Tearing food
b) Grinding and crushing food
c) Incising food
d) Esthetics
Answer: b) Grinding and crushing food. Premolars, or bicuspids, are transitional
teeth located between canines and molars, designed for grinding and crushing food
particles.
2. Which permanent tooth typically has a cusp of Carabelli?
a) Maxillary first premolar
b) Mandibular first molar
c) Maxillary first molar
d) Mandibular second premolar
Answer: c) Maxillary first molar. The cusp of Carabelli is a fifth, non-functional
cusp found on the mesiolingual surface of most maxillary first molars.
3. The "line angle" of a tooth is defined as the:
a) Junction of two surfaces on the same tooth
b) Junction of three surfaces on the same tooth
c) Area of greatest curvature on a tooth surface
d) Space between two adjacent teeth
Answer: a) Junction of two surfaces on the same tooth. For example, the
distolingual line angle is the junction of the distal and lingual surfaces.
4. The primary mandibular second molar resembles the permanent:
a) Mandibular first premolar
b) Mandibular first molar
c) Mandibular second molar
d) Maxillary first molar
,Answer: c) Mandibular second molar. It has a similar design with four cusps,
making it distinct from the primary first molar, which has an unusual "mulberry"
shape.
5. The curvature of the cementoenamel junction (CEJ) is greatest on which
surface of a tooth?
a) Facial
b) Lingual
c) Mesial
d) Distal
Answer: c) Mesial. The CEJ curves more apically on the mesial surface of a tooth
than on the distal surface.
6. Which tooth has the smallest faciolingual diameter in the permanent
dentition?
a) Mandibular central incisor
b) Maxillary lateral incisor
c) Mandibular lateral incisor
d) Maxillary central incisor
Answer: a) Mandibular central incisor. It is the smallest and most symmetric
tooth in the permanent dentition.
7. The term "succedaneous" refers to:
a) Teeth that are non-carious
b) Permanent teeth that replace primary teeth
c) Teeth with supernumerary roots
d) The molars in the permanent dentition
Answer: b) Permanent teeth that replace primary teeth. Incisors, canines, and
premolars are succedaneous. Permanent molars are non-succedaneous.
8. The widest mesiodistal crown dimension of any permanent tooth is found
on the:
a) Maxillary first molar
b) Mandibular first molar
c) Maxillary canine
d) Mandibular second molar
, Answer: b) Mandibular first molar. It is generally the largest tooth in the
mandibular arch.
9. The "triangular ridge" is a landform on a:
a) Molar
b) Premolar
c) Canine
d) All posterior teeth
Answer: d) All posterior teeth. It is a ridge that descends from the tip of a cusp
towards the central area of the occlusal surface.
10. The primary maxillary second molar resembles the permanent:
a) Maxillary first premolar
b) Maxillary first molar
c) Maxillary second molar
d) Mandibular first molar
Answer: b) Maxillary first molar. It has a similar cusp arrangement, including a
distinct cusp of Carabelli.
11. The height of contour on the facial surface of posterior teeth is located in
the:
a) Cervical third
b) Middle third
c) Occlusal third
d) It varies by tooth
Answer: a) Cervical third. This contour helps to deflect food away from the
gingiva and directs it over the gingival margin.
12. The "contact area" on the distal surface of a permanent maxillary first
molar that articulates with the mesial of the second molar is located in which
third?
a) Occlusal third
b) Middle third
c) Cervical third
d) Junction of occlusal and middle thirds
Answer: b) Middle third. Contact areas generally move cervically from anterior
to posterior teeth.
