CDC Dental Terminology & Anatomy 3

Question 1

What does the prefix 'peri-' mean in dental terminology?

Accepted Answer

Around or surrounding

Answer

The prefix 'peri-' means around or surrounding, as in periodontium (tissues surrounding the tooth).

Question 2

Which permanent teeth are most commonly congenitally missing (excluding third molars)?

Accepted Answer

Mandibular second premolars and maxillary lateral incisors

Answer

Mandibular second premolars and maxillary lateral incisors are the most frequently congenitally absent teeth, excluding third molars.

Question 3

What is 'furcation' in dental anatomy?

Accepted Answer

The area where two or more roots divide on a multi-rooted tooth

Answer

The furcation is the area where roots diverge on multi-rooted teeth; furcation involvement is a key periodontal finding.

Question 4

The term 'edentulous' means:

Accepted Answer

Missing all natural teeth

Answer

Edentulous means having no natural teeth remaining, whether in a single arch (partially edentulous) or entire mouth (completely edentulous).

Question 5

What is the 'apex' of a tooth?

Accepted Answer

The tip of the root

Answer

The apex is the very tip of the root, where the apical foramen allows nerves and blood vessels to enter the pulp.

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