Eruption Patterns/Caries Classification

Question 1

eruption

Answer 1

movement of the tooth through surrounding tissues so that more of the tooth becomes visible in the mouth

Question 2

exfoliation

Answer 2

natural process by which roots of baby tooth are resorbed and dissolved until so little root remains that the baby tooth falls out

Question 3

extraction

Answer 3

purposeful treatment of tooth removal

Question 4

when does the mixed dentition period begin

Answer 4

when a child gets the first permanent tooth

Question 5

eruption patterns/sequences

Answer 5

mandibular teeth erupt before maxillary counterparts
teeth erupt anterior to posterior with 3 exceptions:
-primary canines after primary first molars
-permanent first molars erupt first in secondary dentition
-permanent maxillary canines erupt after second premolars

Question 6

permanent molars eruption times

Answer 6

first molars- age 6
second molars- age 12
third molars- age 17

Question 7

two systems of classification of dental caries and restorations

Answer 7

black’s classification system
complexity classification

Question 8

black’s classification system

Answer 8

categorizes carious lesions/restorations based on the type of tooth affects and its location
6 categories

Question 9

black’s classification systems class I

Answer 9

caries or restoration in the pits and fissures on the
-occlusal surfaces of molars and premolars
-buccal or lingual pits of molars
-lingual pits of maxillary incisors

Question 10

black’s classification systems class II

Answer 10

caries or restoration on the
-proximal (mesial and/or distal) surfaces of premolars and molars
-restoration would involve two (or more) surfaces

Question 11

black’s classification systems class III

Answer 11

caries or restoration on the proximal (mesial and/or distal) surfaces of incisors and canines
does NOT involve incisal surface

Question 12

black’s classification systems class IV

Answer 12

caries or restoration on the proximal (mesial and/or distal) surfaces of incisors and canines and also involves the incisal angle

Question 13

black’s classification systems class V

Answer 13

caries or restoration on the gingival or cervical third of the facial or lingual surfaces of any tooth

Question 14

black’s classification systems class VI

Answer 14

caries or restoration on the incisal edge of anterior teeth or the cusp tips of the posterior teeth

Question 15

complexity classification of caries and restorations

Answer 15

simple caries or restorations- involved one tooth surface
compound caries or restorations- involve two tooth surfaces
complex caries or restorations- involved more than two tooth surfaces

Question 16

nomenclature rules for caries, restorations

Answer 16

1. mesial and distal precede all other terms
2. labial/buccal and lingual follow mesial and distal and precede incisial and occlusal
3. the terms incisal and occlusal occur last in any combination, except when they combine two surfaces not connected
4. the final “al” is dropped and replaced by “o”
5. whenever dropping an “al” results in a double “o”, a hyphen is added
6. three-term combinations where two unconnected surfaces are connected by a third surface, the mesial or distal surface is first, followed by labial/buccal, lingual, incisal or occlusal then remaining surface
7. in three-term combinations where all surfaces are connected rules 1 through 3 apply