DNH 111 Final UPDATED ACTUAL Exam
Questions and CORRECT Answers
True/False
Exfoliation is the process by which the roots of a deciduous tooth are pushed together by the
calcification process. Resorption is the phenomenon where odontoblasts absorb teeth. -
CORRECT ANSWER✔✔- Both statements are false
A 10 year-old has which permanent teeth? - CORRECT ANSWER✔✔- All incisors
All canines
All 1st Molars
Mandibular 2nd premolars
When is calcification of primary teeth completed? - CORRECT ANSWER✔✔- 4th month in
utero
A lower root to crown ratio equals _____ resistance. - CORRECT ANSWER✔✔- less
What is the last permanent incisor to erupt? - CORRECT ANSWER✔✔- Maxillary lateral
incisors
What is the pulp cavity? - CORRECT ANSWER✔✔- ...
Which permanent tooth is LEAST likely to be congenitally missing? - CORRECT
ANSWER✔✔- Mandibular 2nd PREMOLAR
Gemination - CORRECT ANSWER✔✔- "Twinning"; when a single tooth germ attempts to
divide, resulting in the incomplete formation of two teeth; the tooth usually has a single root
and root canal
, Concrescence - CORRECT ANSWER✔✔- in dentistry, a condition in which two adjacent
teeth become united by cementum
Dilaceration - CORRECT ANSWER✔✔- Abnormal bend or curve in the root of a tooth.
True/False
Gemination occurs most frequently in the permanent dentition. It is the splitting of the tooth
into two crowns and separate roots. - CORRECT ANSWER✔✔- Both statements are FALSE
True/False
The distomolar is attached to the distal surface cementum of a maxillary molar. Maxillary
distomolars are the most common supernumerary teeth. - CORRECT ANSWER✔✔- Both
statements are FALSE
True/False
Enamel dysplasia is associated with dilaceration. - CORRECT ANSWER✔✔- FALSE
Orthodontic movement is possible due to: - CORRECT ANSWER✔✔- 1) Resorption
2) Apposition
3) PDL _______
All of the Above
True/False
Interdental papilla is classified as attached gingiva. - CORRECT ANSWER✔✔- FALSE
True/False
Questions and CORRECT Answers
True/False
Exfoliation is the process by which the roots of a deciduous tooth are pushed together by the
calcification process. Resorption is the phenomenon where odontoblasts absorb teeth. -
CORRECT ANSWER✔✔- Both statements are false
A 10 year-old has which permanent teeth? - CORRECT ANSWER✔✔- All incisors
All canines
All 1st Molars
Mandibular 2nd premolars
When is calcification of primary teeth completed? - CORRECT ANSWER✔✔- 4th month in
utero
A lower root to crown ratio equals _____ resistance. - CORRECT ANSWER✔✔- less
What is the last permanent incisor to erupt? - CORRECT ANSWER✔✔- Maxillary lateral
incisors
What is the pulp cavity? - CORRECT ANSWER✔✔- ...
Which permanent tooth is LEAST likely to be congenitally missing? - CORRECT
ANSWER✔✔- Mandibular 2nd PREMOLAR
Gemination - CORRECT ANSWER✔✔- "Twinning"; when a single tooth germ attempts to
divide, resulting in the incomplete formation of two teeth; the tooth usually has a single root
and root canal
, Concrescence - CORRECT ANSWER✔✔- in dentistry, a condition in which two adjacent
teeth become united by cementum
Dilaceration - CORRECT ANSWER✔✔- Abnormal bend or curve in the root of a tooth.
True/False
Gemination occurs most frequently in the permanent dentition. It is the splitting of the tooth
into two crowns and separate roots. - CORRECT ANSWER✔✔- Both statements are FALSE
True/False
The distomolar is attached to the distal surface cementum of a maxillary molar. Maxillary
distomolars are the most common supernumerary teeth. - CORRECT ANSWER✔✔- Both
statements are FALSE
True/False
Enamel dysplasia is associated with dilaceration. - CORRECT ANSWER✔✔- FALSE
Orthodontic movement is possible due to: - CORRECT ANSWER✔✔- 1) Resorption
2) Apposition
3) PDL _______
All of the Above
True/False
Interdental papilla is classified as attached gingiva. - CORRECT ANSWER✔✔- FALSE
True/False
