final primary teeth

Question 1

primary teeth have bulges in?

Answer 1

cervical third of labial and lingual surfaces; lingual bulge is seen as large cingulum that occupies 1/3 of cervicoincisal crown length AND labial bulge is seen as a prominent convex cervical ridge

Question 2

roots in proportion to crown length on primary teeth?

Answer 2

roots are long and narrow MD than on permanent teeth

Question 3

roots on primary Max and mand anterior teeth bend ________ in apical third?

Answer 3

10 degrees labially in apical third

*less so in mand canine

Question 4

roots primary max incisors bend lingually in? Mand?

Answer 4

cervical third to half

*Mand incisors are straighter in their cervical third

Question 5

what is VERY SPECIAL about primary maxillary central incisors?

Answer 5

primary maxillary central incisors are the ONLY type of primary or permanent incisors where the crown is WIDER MD than incisocervically

Question 6

compared to permanent teeth, primary incisor crowns are ______ relative to their root length?

Answer 6

shorter

Question 7

dimensions of primary canines?

Answer 7

Max= about as long MD as incisogingivally
mand= longer incisocervically and narrower MD

Question 8

**primary max canines and permanent mandibular 1st premolars are UNIQUE how?

Answer 8

mesial proximal contacts more cervical than distal

*all other primary and permanent teeth have the distal contact more cervical

Question 9

**primary mandibular canines have their distal cusp ridge _____ than their mesial cusp ridge? Same as what other teeth?

Answer 9

distal cusp ridge =longer

* permanent canines and premolars EXCEPT Max 1st premolars

Question 10

**primary maxillary canines have their mesial cusp ridge _____ than their distal cusp ridge? Same as what other teeth?

Answer 10

mesial cusp ridge =longer

** Max 1st premolars

Question 11

primary molar crowns are wider?

Answer 11

MD and shoerter cervico-occlusally (same as permanent molars)

Question 12

are primary 1st or 2nd molars smaller?

Answer 12

1st

Question 13

primary molar crowns have a narrow chewing surface (occlusal table) buccolingually compared to?

Answer 13

the entire tooth width buccolingually

Question 14

buccal cusps are not?

Answer 14

as sharp; they meet at wide obtuse angles

Question 15

buccal cervical ridges are prominent, especially mesial or distally?

Answer 15

mesially; so the cervical lines curve more apically in mesial half of buccal surface

Question 16

primary root furcations?

Answer 16

are nearer to the crown with little or no root trunk compared to permanent molars

Question 17

describe general primary roots characteristics?

Answer 17

thin, slender, widely spread

Question 18

***primary maxillary second molars RESEMBLE?

different how?

Answer 18

permanent maxillary first molars

• occlusal veiw mesial outline tapers toward lingual
• primary mesiobuccal and mesiolingual cusp are about equal in size BUT mesiolingual cusp is larger than mesiobuccal for pemanent teeth

Question 19

primary mandibular second molars RESEMBLE? different how?

Answer 19

permanent mandibular first molars

*the 3 buccal cusps are nearly equal in size (whereas for permanent teeth, the distal cusp is usually smaller)

Question 20

what are the 4 cusps to primary maxiallary first molars?

Answer 20

4 cusps

1) mesibuccal is widest and longest
2) mesiolingual cusp is smaller but sharper
3) distobuccal cusp is small
4) disolingual is inconspicuous and sometimes absent

Question 21

buccal groove on primary max 1st molar?

Answer 21

is located distal to center and divides the large mesiobuccal cusp fromthe indistinct distobuccal cusp

Question 22

both the max premolar and primary max 1st molar are wier?

Answer 22

FL than MD

Question 23

what are the 3 fossa on primary max 1st molars?

Answer 23

1) large mesial triangular fossa
2) medium central fossa
3) minute distal fossa

Question 24

the grooves on primary max 1st molar form?

Answer 24

an H pattern (somewhat similar to max premolar)

Question 25

what tooth does the primary mandibular first molar resemble?

Answer 25

NONE!

Question 26

the primary maxillary first molar somewhat resembles?

Answer 26

permanent maxillary premolar

Question 27

the primary mandibular first molar mesial marginal ridge is??

Answer 27

overdeveloped; almost resembles a cusp

Question 28

the primary mandibular first molar occlusal table is wider? similar to?

Answer 28

MD than BL (like 2nd mandibular molars)

Question 29

what primary tooth has an acute and prominent mesiobuccal angle of the occlusal table?

Answer 29

primary mandibular first molar= the mesial surface outline converges to the lingual with an acute and prominent mesiobuccal angle of the occlusal table

Question 30

what cusp is largest on primary mandibular first molar?

Answer 30

the mesiobuccal cusp is largest and longest; almost covers 2/3 of buccal surface but not as wide buccolingually

Question 31

what runs between the mesiobuccal and mesiolingual cusp on primary mandibular first molar?

Answer 31

a pronounced transverse ridge

Question 32

the occlusal table on primary mandibular first molar is larger?

Answer 32

distal to the transverse ridge with a larger distal fossa and a smaller mesial traiangular fossa
*no central fossa