Primary dentition part 2

Question 1

What does the primary maxillary first molar resemble

Answer 1

a premolar

Question 2

how many roots does the primary maxillary first molar have

Answer 2

3, 2 buccal and 1 lingual

Question 3

how many cusps does the maxillary first molar have

Answer 3

3 or 4

Question 4

what shape is the occlusal surface of the maxillary first molar

Answer 4

triangular

Question 5

what is the longest cusp of the maxillary first molar

Answer 5

ML

Question 6

what is the largest root of the maxillary first molar

Answer 6

lingual

Question 7

what is the outstanding characteristic of the maxillary 1st molar

Answer 7

it has a convexity on the MB aspect

Question 8

describe the occlusal anatomy present on the maxillary first molar

Answer 8

-central fossa
-mesial and distal triangular fossa
-central, buccal, and distal developmental grooves
-mesial and central pit
- oblique ridge

Question 9

what does the maxillary 2nd molar resemble

Answer 9

permenent maxillary first molar

Question 10

what are the cusps of the maxillary second molar

Answer 10

ML,MB,DB,DL, and cusp of carabelli

Question 11

what is the shape of the maxillary 2nd molar

Answer 11

rhomboidal

Question 12

describe the occlusal of the maxillary 2nd molar

Answer 12

oblique ridge
-same fossae and grooves are permament 1st molar

Question 13

how many roots does the maxillary 2nd molar have

Answer 13

MB,DB, and L

Question 14

compare the primary maxillary 2nd molar to the permanent maxillary 2nd molar

Answer 14

-trifurcation very close to CEJ in primary
-cervix much narrower MD

Question 15

how many cusps are on the primary mandibular 1st molar

Answer 15

4-MB,ML,DB,DL

Question 16

describe the roots of the primary mandibular 1st molar

Answer 16

-2 roots mesial and distal
-short root trunk
-roots are slender and more splayed

Question 17

what is the interesting fact about the primary mandibular 1st molar

Answer 17

does not resemble any other tooth in primary or secondary dentition

Question 18

describe the buccal view of the primary mandibular 1st molar

Answer 18

-crown height on mesial is twice that of distal because CEJ dips apically
-mesial contour is straight
-distal is convex

Question 19

where is the ML cusp on the lingual view of the primary mandibular 1st molar

Answer 19

centered in the tooth, in line with the mesial root

Question 20

what is the largest cusp on the primary mandibular first molar

Answer 20

ML cusp

Question 21

describe the occlusal features of the primary mandibular first molar

Answer 21

-mesial and distal triangular ridges joined by central developmental groove
-triangular ridges of MB and ML cusps form a transverse ridge
-lingual and buccal developmental grooves
-mesial and central pit

Question 22

what tooth does the primary mandibular 2nd molar resemble

Answer 22

permanent mandibular 1st molar

Question 23

how many cusps are on the primary mandibular 2nd molar

Answer 23

5 cusps: 3 buccal and 2 lingual

Question 24

how many roots does the primary mandibular 2nd molar have

Answer 24

2 mesial and distal

Question 25

what are the differences between the primary mandibular 2nd molar and the permanent mandibular 1st molar

Answer 25

-bifurcation of root close to CEJ
- roots flared
- 3 buccal cusps more equal in size
-cervical constriction

Question 26

what is the primate space

Answer 26

space that exists mesial to the primary maxillary canine and distal to the primary mandibular canine in some deciduous dentitions

Question 27

what is the leeway space

Answer 27

the combined mesiodistal widths of permanent premolars and the permanent canine less than the combined mesiodistal widths of the primary molars and primary canine