Primary teeth Flashcards
Which dentition is less mineralized?
Primary dentition
Which dentition is more worn?
Primary dentition
What is the difference in space from the primary to permanent dentition?
2-4 mm
If you have mamelons that remain beyond the age of 10 what does that indicate?
Open bite
When is calcification of the primary roots complete?
3-4 yrs of age
What is the order of eruption?
Central, Lateral, 1st molar, canine, 2nd molars
T/F
Lowers usually erupt after uppers
False
Before uppers
What is the exception to the eruption of lowers before uppers?
The upper laterals
Where does the primate space develop in the maxillary primary dentition?
Between lateral and canine
Where does the mandibular primary primate space develop?
Between canine and 1st molar
What is the cause of primary spacing for the anterior teeth?
Growth of the dental arches
What is the direction of the primary enamel rods in the cervical third?
Occlusal direction
Primary molars have roots that are more or less divergent that permanent molars?
More divergent
What does a primary molar lack?
Identifiable root trunk
What is the root trunk?
From the CEJ to the furcation of the root
What tooth has smallest faciolingual crown dimension?
Mandibular Central Incisor
What tooth is the most bilaterally symmetrical tooth in the mouth?
Mandibular central incisor
If you have delayed resorption of primary incisors where will the permanent incisors erupt?
Lingually to primary incisors
What tooth exhibits a prominent cervical ridge on both the facial and lingual surfaces?
Primary maxillary central incisor
From the facial view of the primary canine which slope is longer?
Mesio-incisal
Where is the cusp tip of the primary canine offset?
Distally
What primary tooth has a crown that appear like a permanent premolar?
Primary Maxillary 1st molar
The primary maxillary 1st molar has roots that resemble what teeth?
Permanent maxillary molar
Where is the cervical ridge most prominent in the primary maxillary teeth?
Mesiofacial surface on the Maxillary 1st molar
What primary tooth generally has an oblique ridge?
Primary maxillary 2nd molar
What is the only primary tooth that has a transverse and oblique ridge with a DL groove?
Primary maxillary 2nd molar
What primary tooth exhibits the cusp of carabelli?
Primary maxillary 2nd molar
What is the last primary tooth to erupt?
Primary maxillary 2nd molar
What primary tooth has the most distinctly prominent facial cervical ridge?
Mandibular 1st molar
On the facial view of the primary mandibular 1st molar the CEJ is most apically positioned where?
Mesial 1/3
Which primary tooth exhibits a distal triangular fossa?
Mandibular 1st molar
What primary tooth has the most distinct transverse ridge?
Mandibular 1st molar
T/F
The primary mandibular 1st molar does not look like any permanent tooth.
True
What primary tooth differs most from permanent teeth?
Mandibular 1st molars
Where is the highest and sharpest cusp located on the primary mandibular first molar?
Mesiolingual cusp
