OHIO EFDA BOARD EXAM WITH COMPLETE QUESTIONS
AND CORRECT VERIFIED ANSWERS 2025/2026
At the occlusal and incisal surface - (ANSWERS)In which area on the tooth
is the enamel thickest
Which tissue provides the defense and developmental functions of a tooth -
(ANSWERS)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........ - (ANSWERS)Marginal ridges
Name the surface at the base of a classi cavity preparation -
(ANSWERS)Pulpal floor
Which tooth has the longest root in the mouth? - (ANSWERS)Maxillary
cuspid/canine
If present, the cusp of Carabelli is located on, which molar -
(ANSWERS)ML cusp area of the maxillary, first molar
The fossa found in the central portion of a molar is named the
____________ fossa? - (ANSWERS)Central
Where is the cavosurface margin located? - (ANSWERS)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 - (ANSWERS)Reparative dentin
1/9
, OHIO EFDA BOARD EXAM WITH COMPLETE QUESTIONS
AND CORRECT VERIFIED ANSWERS 2025/2026
What is the correct classification of caries for a carious lesion that is located
on the proximal surface of tooth #8 - (ANSWERS)Class III
In which direction does the oblique bridge travel across the occlusal surface
of a maxillary molar? - (ANSWERS)Distobuccal to Mesiolingual DB/ML
What can cause pulpitis? - (ANSWERS)Deep cavities into the dentin
High occlusion
Effects of cutting burs
Desiccation
Condensation pressure
Chemical irritation from restorative materials
Temperature changes
Dimensional changes
Lack of marginal seal
What is the junction of three walls inside a cavity preparation identified as?
- (ANSWERS)Point angle
The anatomical crown of a tooth is described as extending from__________
- (ANSWERS)The CEJ to the occlusal surface or incisal edge
The majority of a tooth is compromised of what tissue? -
(ANSWERS)Dentin
What cell is responsible for the formation of enamel? -
2/9
AND CORRECT VERIFIED ANSWERS 2025/2026
At the occlusal and incisal surface - (ANSWERS)In which area on the tooth
is the enamel thickest
Which tissue provides the defense and developmental functions of a tooth -
(ANSWERS)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........ - (ANSWERS)Marginal ridges
Name the surface at the base of a classi cavity preparation -
(ANSWERS)Pulpal floor
Which tooth has the longest root in the mouth? - (ANSWERS)Maxillary
cuspid/canine
If present, the cusp of Carabelli is located on, which molar -
(ANSWERS)ML cusp area of the maxillary, first molar
The fossa found in the central portion of a molar is named the
____________ fossa? - (ANSWERS)Central
Where is the cavosurface margin located? - (ANSWERS)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 - (ANSWERS)Reparative dentin
1/9
, OHIO EFDA BOARD EXAM WITH COMPLETE QUESTIONS
AND CORRECT VERIFIED ANSWERS 2025/2026
What is the correct classification of caries for a carious lesion that is located
on the proximal surface of tooth #8 - (ANSWERS)Class III
In which direction does the oblique bridge travel across the occlusal surface
of a maxillary molar? - (ANSWERS)Distobuccal to Mesiolingual DB/ML
What can cause pulpitis? - (ANSWERS)Deep cavities into the dentin
High occlusion
Effects of cutting burs
Desiccation
Condensation pressure
Chemical irritation from restorative materials
Temperature changes
Dimensional changes
Lack of marginal seal
What is the junction of three walls inside a cavity preparation identified as?
- (ANSWERS)Point angle
The anatomical crown of a tooth is described as extending from__________
- (ANSWERS)The CEJ to the occlusal surface or incisal edge
The majority of a tooth is compromised of what tissue? -
(ANSWERS)Dentin
What cell is responsible for the formation of enamel? -
2/9
