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OHIO EFDA BOARD EXAM Questions and
Correct Answers
At the occlusal and incisal surface Ans: In which area on the
tooth is the enamel thickest
Which tissue provides the defense and developmental functions of
a tooth Ans: Pulp
Rounded borders of enamel which form the mesial and distal of
the occlusal surface on posterior teeth, or mesial and distal of the
lingual surface on interior teeth are named........ Ans: Marginal
ridges
Name the surface at the base of a classI cavity preparation Ans:
Pulpal floor
© 2025 All rights reserved
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Which tooth has the longest root in the mouth? Ans: Maxillary
cuspid/canine
If present, the cusp of Carabelli is located on, which molar Ans:
ML cusp area of the maxillary, first molar
The fossa found in the central portion of a molar is named the
____________ fossa? Ans: Central
Where is the cavosurface margin located? Ans: At the junction of
the cavity wall and the unprepared tooth structure
If the pulp receives an excessive stimulus, which type of dentin is
formed in response Ans: Reparative dentin
What is the correct classification of caries for a carious lesion that
is located on the proximal surface of tooth #8 Ans: Class III
In which direction does the oblique bridge travel across the
occlusal surface of a maxillary molar? Ans: Distobuccal to
Mesiolingual DB/ML
© 2025 All rights reserved
OHIO EFDA BOARD EXAM Questions and
Correct Answers
At the occlusal and incisal surface Ans: In which area on the
tooth is the enamel thickest
Which tissue provides the defense and developmental functions of
a tooth Ans: Pulp
Rounded borders of enamel which form the mesial and distal of
the occlusal surface on posterior teeth, or mesial and distal of the
lingual surface on interior teeth are named........ Ans: Marginal
ridges
Name the surface at the base of a classI cavity preparation Ans:
Pulpal floor
© 2025 All rights reserved
, 2 | Page
Which tooth has the longest root in the mouth? Ans: Maxillary
cuspid/canine
If present, the cusp of Carabelli is located on, which molar Ans:
ML cusp area of the maxillary, first molar
The fossa found in the central portion of a molar is named the
____________ fossa? Ans: Central
Where is the cavosurface margin located? Ans: At the junction of
the cavity wall and the unprepared tooth structure
If the pulp receives an excessive stimulus, which type of dentin is
formed in response Ans: Reparative dentin
What is the correct classification of caries for a carious lesion that
is located on the proximal surface of tooth #8 Ans: Class III
In which direction does the oblique bridge travel across the
occlusal surface of a maxillary molar? Ans: Distobuccal to
Mesiolingual DB/ML
© 2025 All rights reserved
