Pediatric Dentistry Flashcards
Natal teeth may cause trauma during ___________ due to their location
Nursing
T/F: natal teeth are present within the first 30 days of birth
False. Neonatal teeth are.
Natal teeth are present at birth
Where are natal teeth commonly present?
Mandibular incisor region
Describe the physiologic appearance of natal and neonatal teeth
Hypo calcified enamel matrix
What class of tooth is not present in the primary dentition?
Bicuspid
What is the rule of 4?
4 teeth every 4 months starting with 4 teeth at 7 months
What is the order of eruption for the primary dentition?
Max incisors, lateral incisors, first molars, canines, second molars
What is the eruption time for a primary max central incisor? What about exfoliation time?
Eruption: 8 to 12 months
Exfoliation: 6 to 7 years
What is the eruption time for a primary max lateral incisor? What about exfoliation time?
Eruption: 9 to 13 months
Exfoliation: 7 to 8 years
What is the eruption time for a primary max canine? What about exfoliation time?
Eruption: 16 to 21 months
Exfoliation: 10 to 12 years
What is the eruption time for a primary max first molar? What about exfoliation time?
Eruption: 13 to 19 months
Exfoliation: 9 to 11 years
What is the eruption time for a primary max second molar? What about exfoliation time?
Eruption: 25 to 33 months
Exfoliation: 10 to 12 years
What is the eruption time for a primary mand central incisor? What about exfoliation time?
Eruption: 6 to 10 months
Exfoliation: 6 to 7 years
What is the eruption time for a primary mand lateral incisor? What about exfoliation time?
Eruption: 10 to 16 months
Exfoliation: 7 to 8 years
What is the eruption time for a primary mand canine? What about exfoliation time?
Eruption: 17 to 23 months
Exfoliation: 9 to 12 years
What is the eruption time for a primary mand first molar? What about exfoliation time?
Eruption: 14 to 18 months
Exfoliation: 9 to 11 years
What is the eruption time for a primary mand second molar? What about exfoliation time?
Eruption: 23 to 31 months
Exfoliation: 10 to 12 years
Which of the following is not characteristic of primary teeth?
a) Uniform enamel thickness of 1 mm occlusally
b) Short crowns
c) Lack of buccal and lingual cervical ridges
d) Shallow anatomy
e) Prominent mesial cervical ridge
c) EXAGGERATED buccal and lingual cervical ridges
Does a primary mandibular first molar have a central fossa?
Nope
Which primary tooth is known to “resemble no other teeth”?
Primary mandibular first molar
Which of the following is not characteristic of a primary mandibular first molar?
a) Largest/longest = distal
b) Wide mesial distally with a pronounced cervical ridge
c) Mesial marginal ridge (MMR) = cusp
d) Big MB cervical ridge
e) Difficult class II preparation
a) Largest/longest = MESIAL
What is the eruption sequence for the permanent maxillary dentition?
1st molar -> CI -> LI -> 1st PM -> 2nd PM -> K9 -> 2nd M -> 3rd M
How to remember that K9 is later -> “MAX the K9 is always late”
What is the eruption sequence for the permanent mandibular dentition
1st molar -> CI -> LI -> K9 -> 1st PM -> 2nd PM -> 2nd M -> 3rd M
When a child is 11-12 years old, which teeth do you expect to erupt?
Max K9s
When a child is 6 - 7 years old, which teeth do you expect to erupt?
All first molars
Mn CIs
When a child is 7 to 8 years old, which teeth do you expect to erupt?
Mx CIs
Mn LI
When a child is 8 to 9 years old, which teeth do you expect to erupt?
Mx LIs
When do you expect all 2nd molars to erupt?
11 to 13 years old
When do you expect all 3rd molars to erupt?
17 to 21 years old
When do you expect the mandibular K9s to erupt?
9 to 10 years old
When do you expect all premolars to erupt?
10 to 12 years old
When do you expect the maxillary K9s to erupt?
11 to 12 years
What is class II malocclusion called?
Distocclusion