Question 242 · LDEK · Crowding and dental anomalies
Late (tertiary) crowding of lower anterior teeth:
- A. is the consequence of the loss of teeth 75 or 85 before 8th year of age.
- B. is the consequence of the loss of teeth 55 or 65 before 9th year of age.
- C. develops around 12 years of age due to space deficiency in dental arch.
- D. develops around 8 years of age due to insufficient space for erupting incisors.
- E. none of the above.
Hint
Recall the three types of crowding (primary, secondary, tertiary) and the age at which late lower incisor crowding typically appears.
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