Quiz 4 Review Questions (Ch. 18 - Primary Dentition)

The crown of the primary mandibular central looks more like which tooth than its permanent successor?

Primary mandibular lateral incisor

Which primary tooth is unique because its crown does not resemble any other primary or permanent tooth?

Primary maxillary first molar

Which primary tooth has a longer and sharper cusp than its permanent successor?

Primary maxillary canine

For what purpose are the roots of primary molars flared beyond the crown outline?

To create more space for developing premolars

When does mineralization of the primary dentition begin during prenatal development?

13-16 weeks

When should the first dental appointment occur?

12 months of age or earlier (6 months after the eruption of the tooth but no later than 12 months of age)

By which weeks of prenatal development have all primary teeth begun mineralization?

18-20 weeks

Which primary tooth may retain if there is no permanent second premolar present?

Primary second molar

What is the name given to the tooth designated by O and P?

Primary mandibular central incisor

Prolonged nighttime use of a bottle with caries-causing beverage may cause this condition:

Early childhood caries (also known as ECC)

This type of primary tooth will have greater cervical constriction of the crown than the permanent successor:

Primary molar

The greater root spread of primary molars, along with their narrow shape, makes primary molars more susceptible to what?

Fracture during extraction

Which primary molar is most likely to have a cusp of carabelli?

Primary maxillary second molar

How long does the primary dentition function for a child?

5-12 years

The root of a primary tooth is completely formed how long after eruption of the tooth into the oral cavity?

1 year

If a pulpotomy is performed on a primary tooth, a possible complication would be:

Root perforation

The group of primary teeth closely resembles their permanent successors:

Primary incisors

This primary tooth closely resembles the form of the permanent mandibular first molar:

Primary mandibular second molar

This tooth is much smaller than its maxillary counterpart and has a much smoother lingual surface:

Primary mandibular canine

Dental imaging should be taken prior to extraction to confirm what?

A permanent replacement