SEARCH:

Permanent dentition stage normally begins with:

# The permanent dentition stage normally begins with which of the following?
A. Exfoliation of the primary mandibular central incisor
B. Exfoliation of the primary maxillary 2nd molar
C. Eruption of the permanent mandibular 1st molar
D. Eruption of the permanent maxillary 1st molar
E. Exfoliation of the primary mandibular 1st molar


The correct answer is B. Exfoliation of the primary maxillary 2nd molar. 

The permanent dentition stage does not
begin until the final primary tooth is
exfoliated.

The term "'mixed dentition" describes the
time between the eruption of the permanent 1st molars until the exfoliation of the last primary tooth.

Patients who retain primary teeth don't
leave the mixed dentition stage until the
primary teeth are lost.

Primary dentition: 6 months- 6 years
Mixed dentition: 6 years- 12 years
Permanent dentition: 12 years +

No comments:

Post a Comment

Add Your Comments or Feedback Here

See All Posts / Archives: