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Eruption Age and Sequence
PCD test 1
54
Dentistry
Graduate
08/15/2013

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Cards

Term
List the permanent Mandibular eruption sequence
Definition
1-First Molar (1st permanent)
2-Central Incisor (1st succedaneous)
3-Lateral Incisor
4-Cuspid
5-First Premolar
6-Second Premolar
7-Second Molar
8-Third Molar
Term
When do the permanent mandibular central incisors erupt?
Definition
6-7 years
Term
When do the permanent mandibular lateral incisors erupt?
Definition
7-8 years
Term
When do the permanent mandibular cuspids erupt?
Definition
9-10 years
Term
When do the permanent mandibular first premolar erupt
Definition
10-12 years
Term
When do the permanent mandibular second premolar erupt
Definition
11-12 years
Term
When do the permanent mandibular first molar erupt
Definition
6-7 years
Term
when the permanent mandibular second molar erupt
Definition
11-13 years
Term
when the permanent mandibular third molar erupt
Definition
17-21 years
Term
When do the permanent maxillary central incisor erupt
Definition
7-8 years
Term
When do the permanent maxillary lateral incisor erupt
Definition
8-9 years
Term
When do the permanent maxillary cuspid erupt
Definition
11-12 years
Term
When do the permanent maxillary first premolar erupt
Definition
10-11 years
Term
When do the permanent maxillary second premolar erupt
Definition
10-12 years
Term
When do the permanent maxillary first molar erupt
Definition
6-7 years
Term
When do the permanent maxillary second molar erupt
Definition
12-15 years
Term
When do the permanent maxillary third molar erupt
Definition
17-21 years
Term
List the permanent maxillary eruption sequence
Definition
1-First Molar
2-Central Incisor
3-Lateral Incisor
4-First Premolar
5-Second Premolar
6-Cuspid
7-Second Molar
8-Third Molar
Term
List the deciduous mandibular eruption sequence
Definition
1-Central Incisor
2-Lateral Incisor
3-First Molar
4-Cuspid
5-Second Molar
Term
List the deciduous maxillary eruption sequence
Definition
1-Central Incisor
2-Lateral Incisor
3-First Molar
4-Cuspid
5-Second Molar
Term
When do the deciduous mandibular central incisor erupt
Definition
6 months
Term
When do the deciduous mandibular lateral incisor erupt
Definition
7 months
Term
When do the deciduous mandibular cuspid erupt
Definition
16 months
Term
When do the deciduous mandibular first molar erupt
Definition
12 months
Term
When do the deciduous mandibular second molar erupt
Definition
20 months
Term
When do the deciduous maxillary central incisor erupt
Definition
7.5 months
Term
When do the deciduous maxillary lateral incisor erupt
Definition
9 months
Term
When do the deciduous maxillary cuspid erupt
Definition
18-19 months
Term
When do the deciduous maxillary first molar erupt
Definition
14 months
Term
When do the deciduous maxillary second molar
Definition
24 months
Term
What is the eruption sequence for all 20 deciduous teeth?
Definition
1-mandibular central incisor
2-mandibular lateral incisor
3-maxillary central incisor
4-maxillary lateral incisor
5-mandibular first molar
6-maxillary first molar
7-mandibular cuspid
8-maxillary cuspid
9-mandibular second molar
10-maxillary second molar
Term
Eruptions dates of permanent teeth are considered equal to the age the deciduous tooth is _____
Definition
exfoliated
Term
Do mandibular or maxillary teeth erupt before their counterpart?
Definition
mandibular
Term
What is the first permanent tooth to erupt?
Definition
mandibular first molar
Term
What is the first succedaneous tooth to erupt?
Definition
mandibular central incisor
Term
The permanent anterior teeth develop just _____ to their deciduous counterparts
Definition
lingual
Term
The premolars develop within the ______ of primary molar roots
Definition
bifurcation
Term
What teeth are not succedaneous and what do they do for the arch?
Definition
The permanent molars are not succedaneous. They become the cornerstones of the arch helping maintain tooth placement and occlusion as primary teeth are exfoliated.
Term
What is a "dissolving away" of the root by osteoclastic activity?
Definition
resorption
Term
Why do primary teeth roots resorb?
Definition
possibly due to pressure of the permanent tooth; possibly due to a chemical or cell signaling by the developing permanent tooth
Term
When do resorption being?
Definition
Resorption begins at least a year prior to exfoliation.
Term
When do deciduous teeth form?
Definition
All deciduous teeth are forming before birth – around 4 to 6 months before birth
Term
When do first permanent molars being calcifying?
Definition
at birth
Term
How many teeth are present at 9 months?
Definition
3 or 4 erupted teeth
Term
When are all 20 deciduous teeth typically present
Definition
age 2
Term
When are all root formation of the deciduous teeth typically complete?
Definition
age 3
Term
When do permanent teeth begin calcification prior to eruption?
What begins calcification first?
Second molars?
Definition
5 to 6 years
cusp tips and incisal edges
10 years
Term
When do permanent crown formation complete prior to eruption?
Definition
3-5 years
Term
When does permanent root completion occur after eruption?
Definition
2-3 years
Term
What is active eruption
Definition
the tooth pushes through the mucous membrane cover of the alveolar process and into the oral cavity. The active eruption process is complete when the tooth contacts its opposing tooth or teeth (in the opposite arch).
Term
What is passive eruption
Definition
the continuing process of adaptation of a tooth to changing relationship with opposing teeth – after active eruption has ended. Examples – attrition; tooth loss; fracture of opposing teeth.
Term
What is supraeruption?
Definition
when a tooth has erupted beyond the normal occlusal plane
Term
What is the keratinous, membrane like cuticle enveloping the anatomical crown when a tooth erupts that is abraded away rather quickly
Definition
Nasmyth's membrane
Term
What are the four stages of human dentition?
Definition
1. Edentulous – no teeth (Birth to 6 months old)
2. Primary dentition (6 months to 6 years)
3. Mixed dentition (age 6 to 12)
4. Adult dentition (age 12 and over – (unless a deciduous tooth is retained – then this age would be higher as the person remains in mixed dentition until that primary tooth is lost))
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