Dental Anatomy EFDA UPDATED ACTUAL Exam Questions and CORRECT Answers

Dental Anatomy EFDA UPDATED ACTUAL
Exam Questions and CORRECT Answers
Dental Morphology - CORRECT ANSWER - The study of the structure and form of the
teeth


Bud Stage - CORRECT ANSWER - 1st stage of odontogenesis (origin of the tooth)



Bud stage - CORRECT ANSWER - Initiation begins when tooth begins formation from
the dental lamina (begins in utero appr. 13-16 weeks


Bud Stage - CORRECT ANSWER - Epithelium thickens
-U shape
-eventually 20 localized thickenings correspond to future primary dentition


Bud Stage - CORRECT ANSWER - Successional lamina
-forms lingual
-permanent teeth
-slower growth


Cap Stage - CORRECT ANSWER - Bud of tooth grows and changes shape



Cap Stage - CORRECT ANSWER - Proliferation
-Ectoderm (crown, skin, hair, nails)


Cap Stage - CORRECT ANSWER - Primary embryonic Mesoderm layer develops into
connective tissue

, Cap Stage - CORRECT ANSWER - Forms the dental sac



Cap Stage - CORRECT ANSWER - Matures dentin, cementum and pulp of tooth



Bell Stage - CORRECT ANSWER - Histodifferation takes place
-Specialization of cells


Bell Stage - CORRECT ANSWER - Ameloblasts- Enamel forming cells
Dentoblasts- Forms Dentin
Cementoblasts- Forms cementum


Apposition - CORRECT ANSWER - Maturation stage
Odontogenesis reaches completion
Enamel, Dentin & Cementum are formed in layers and fuse together in the appropriate manner


Apposition - CORRECT ANSWER - Calcification occurs
-last development stage prior to eruption


Enamel Dysplasia - CORRECT ANSWER - Disturbance of apposition
- opaque spots
-rough enamel
- weakened tooth structure


Eruption - CORRECT ANSWER - Movement of teeth as it emerges through surrounding
tissue


Attrition - CORRECT ANSWER - Wearing away of the life cycle of the tooth on the
incisal or ccclusal surfaces during eruption