CODT EFDA WRITTEN EXAM
QUESTIONS AND ANSWERS
In the FDI system for numbering, a permanent maxillary right first
molar is:
A. #16
B. #26
C. #14
D. #3 -
correct answer ✅A. #16
What tooth numbering system does not use letter when describing
the primary dentition?
A. Universal Numbering System
B. FDI Numbering System
C. Caries Classification System
D. Tooth Identification System -
correct answer ✅B. FDI Numbering System
On a tooth with extensive gingival recession below the
cementoenamel junction, which of the following would be visible?
,CODT EFDA WRITTEN EXAM
QUESTIONS AND ANSWERS
A. Anatomical Crown
B. Clinical Crown
C. Anatomical and Clinical Crown
D. Anatomical and Clinical Root -
correct answer ✅C. Anatomical and Clinical Crown
Which of the following statements most accurately described the
periodontium?
A. The oral hard and soft tissues that support the teeth
B. Enamel and cementum located on the exterior surfaces of the
crown and root of the tooth
C. Soft tissue that is loosely attached to the underlying bone
D. A cuff of tissue that is not attached to the tooth -
correct answer ✅A. The oral hard and soft tissues that support the
teeth
When looking into the oral cavity, one will most likely see the:
A. Anatomical Crown
B. Clinical Crown
,CODT EFDA WRITTEN EXAM
QUESTIONS AND ANSWERS
C. Cementoenamel Junction
D. Anatomical and Clinical Crowns -
correct answer ✅B. Clinical Crown
Proximal caries usually occur on the smooth surface area:
A. Above (occlusal to) the contact area
B. Below (gingival to) the contact area
C. At the contact area
D. Facial or lingual to the contact area -
correct answer ✅B. Below (gingival to) the contact area
What is the term that describes a space continuous with an
interproximal space, produced by curvatures of teeth in contact in
the same arch, that provides a channel or passage through which
food escapes from the occlusal surfaces of the teeth during
mastication?
A. Embrasure
B. Contact Area
C. Furactions
, CODT EFDA WRITTEN EXAM
QUESTIONS AND ANSWERS
D. Convexity -
correct answer ✅A. Embrasure
The embrasure located below the contact area is known as the
________ embrasure.
A. Facial
B. Lingual
C. Occlusal
D. Gingival -
correct answer ✅D. Gingival
When posterior teeth are viewed from the occlusal, the proximal
contacts are usually located:
A. More lingual in a buccal to lingual direction
B. More distal in a mesial to distal direction
C. More mesial in a mesial to distal direction
D. More buccal in a buccal to lingual direction -
correct answer ✅D. More buccal in a buccal to lingual direction
QUESTIONS AND ANSWERS
In the FDI system for numbering, a permanent maxillary right first
molar is:
A. #16
B. #26
C. #14
D. #3 -
correct answer ✅A. #16
What tooth numbering system does not use letter when describing
the primary dentition?
A. Universal Numbering System
B. FDI Numbering System
C. Caries Classification System
D. Tooth Identification System -
correct answer ✅B. FDI Numbering System
On a tooth with extensive gingival recession below the
cementoenamel junction, which of the following would be visible?
,CODT EFDA WRITTEN EXAM
QUESTIONS AND ANSWERS
A. Anatomical Crown
B. Clinical Crown
C. Anatomical and Clinical Crown
D. Anatomical and Clinical Root -
correct answer ✅C. Anatomical and Clinical Crown
Which of the following statements most accurately described the
periodontium?
A. The oral hard and soft tissues that support the teeth
B. Enamel and cementum located on the exterior surfaces of the
crown and root of the tooth
C. Soft tissue that is loosely attached to the underlying bone
D. A cuff of tissue that is not attached to the tooth -
correct answer ✅A. The oral hard and soft tissues that support the
teeth
When looking into the oral cavity, one will most likely see the:
A. Anatomical Crown
B. Clinical Crown
,CODT EFDA WRITTEN EXAM
QUESTIONS AND ANSWERS
C. Cementoenamel Junction
D. Anatomical and Clinical Crowns -
correct answer ✅B. Clinical Crown
Proximal caries usually occur on the smooth surface area:
A. Above (occlusal to) the contact area
B. Below (gingival to) the contact area
C. At the contact area
D. Facial or lingual to the contact area -
correct answer ✅B. Below (gingival to) the contact area
What is the term that describes a space continuous with an
interproximal space, produced by curvatures of teeth in contact in
the same arch, that provides a channel or passage through which
food escapes from the occlusal surfaces of the teeth during
mastication?
A. Embrasure
B. Contact Area
C. Furactions
, CODT EFDA WRITTEN EXAM
QUESTIONS AND ANSWERS
D. Convexity -
correct answer ✅A. Embrasure
The embrasure located below the contact area is known as the
________ embrasure.
A. Facial
B. Lingual
C. Occlusal
D. Gingival -
correct answer ✅D. Gingival
When posterior teeth are viewed from the occlusal, the proximal
contacts are usually located:
A. More lingual in a buccal to lingual direction
B. More distal in a mesial to distal direction
C. More mesial in a mesial to distal direction
D. More buccal in a buccal to lingual direction -
correct answer ✅D. More buccal in a buccal to lingual direction
