Flashcards in 300 Dental Anatomy Facts Deck (117)
Primary teeth are MORE or LESS mineralized that permanent teeth?
May appear more worn
What is the difference in space between the primary dentition and permanent dentition
Primary dentition is more square and squatty shaped
Mammelons that remain after age 10 indicate what?
An open bite
Typically the dention will fall into lateral excursion and wear off the mammelons by teeth occluding in a closed bite
When does calcification of primary dentition complete?
Age 3-4 years old
What is the order of eruption for primary dentition?
Front to back besides canines
Manibulars before maxillarys except _____
Maxillary PRIMATE space
Between the lateral and canine
Mandibular PRIMATE space
Between the canine and the 1st premolar (adults)
Between the canine and 1st molar (children)
What is the primate space?
Space created to accommodate the larger jaw and larger adult dentition
What is primary spacing?
And what is it caused by?
Spacing in the anterior teeth due to the growth of dental arches.
Making room for permanent dentition
Primary enamel rods are oriented in which direction in the cervical 1/3 of the crown?
Permanent enamel rods are oriented apically in the cervical 1/3
Primary molars roots differ from permanent molars roots because they are more _______
Primary molars lack or have a small root _____
The primary CENTRAL INCISOR has the smallest ___________ crown dimension
The primary and permanent MANDIBULAR CENTRAL INCISOR
Most bilaterally symmetrical tooth
Delayed resorption of primary incisors the permanent incisors erupt ?
The primary central incisor exhibits a prominent lingual and facial _______ ________
Cervical ridge (bulge)
PRIMARY canine mesioincisal edge is ______ than the distoincisal edge
The PRIMARY canine cusp tip is set off towards the _______
Gives the longer mesioincisal edge
The 1st PRIMARY MAXILLARY MOLAR crown resembles what permanent tooth?
The 1st PRIMARY MOLAR roots resembles what permanent tooth?
3 roots --> DB, MB, Palatal
** just more divergent**
The cervical ridge on the PRIMARY MAXILLARY 1st MOLAR is most prominent where?
Mesial Facial surface
It is NOT the most prominent cervical ridge
Which primary MAXILLARY tooth has the most prominent cervical ridge?
Where is it located?
Primary maxillary 1st molar
Located on the MF surface
Which tooth OVERALL has the most prominent cervical ridge?
MANDIBULAR first molar
located on the MF surface
Which primary tooth has an oblique ridge?
Primary 2nd MAXILLARY Molar -- it is the only primary tooth
Which primary tooth has a DL groove, transverse ridge, and an oblique ridge?
Primary 2nd MAXILLARY molar
Which primary tooth exhibits a cusp of carabelli?
Primary 2nd MAXILLARY molar
What permanent tooth does the primary 2nd MAXILLARY molar resemble?
Permanent 1st MAXILLARY molar
What is the LAST tooth to erupt in the primary dentition?
Maxillary 2nd molar