Dental Anatomy And Occlusion

Front 1

Does not resemble any other tooth, looks primitive

Back 1

Primary mandibular 1st molar

Front 2

Resembles permanent maxillary 1st molar

Back 2

Primary maxillary 2nd molar

Front 3

Teeth having no deciduous predecessors

Back 3

Accessional teeth (permanent molars)

Front 4

From how many lobe/s does a peg lateral develop

Back 4

1 lobe

Front 5

What do you call the sixth cusp in the permanent mandibular 1st molar?

Back 5

Tuberculum sextum

Front 6

What do you call the 6th cusp when located in the distal marginal ridge (between distal cusp and DL cusp)

Back 6

Tuberculim intermedium

Front 7

When do the deciduous teeth develop in utero?

Back 7

6 weeks

Front 8

When do the deciduous teeth develop in utero?

Back 8

6 weeks

Front 9

When do primary teeth begin to calcify

Back 9

4 mos in utero

Front 10

When do the deciduous teeth develop in utero?

Back 10

6 weeks

Front 11

When do primary teeth begin to calcify

Back 11

4 mos in utero

Front 12

Aspirin, valium and dilantin are teratogens which cause what defect in the baby?

Back 12

Cleft lip and palate

Front 13

Excess in vitamin D causes what in dentofacial devt

Back 13

Premature suture closure

Front 14

How many line angles do all posterior teeth have?

Back 14

8

Front 15

How many line angles do all posterior teeth have?

Back 15

8

Front 16

How many line angles are there in anteriors?

Back 16

6. There is no MI and DI line angle since they are rounded

Front 17

Oblique ridge is found only what group of teeth?

Back 17

Maxillary molars

Front 18

Oblique ridge is found only what group of teeth?

Back 18

Maxillary molars

Front 19

A ridge formed by the union of the lingual triangular ridge of a buccal cusp and a buccal triangular ridge of a lingual cusp

Back 19

Transverse ridge

Front 20

How many point angles do all teeth have?

Back 20

4

Front 21

Buccal cusp ridge is more pronounced in what tooth

Back 21

First premolars

Front 22

A ridge found on all primary teeth and only on permanent molars

Back 22

Cervical ridge

Front 23

Primary centers of calcification

Back 23

Lobes

Front 24

Primary centers of calcification

Back 24

Lobes

Front 25

Small pinpoint depressions found at the junction of developmental grooves or at terminals of these grooves

Back 25

Pit

Front 26

Primary centers of calcification

Back 26

Lobes

Front 27

Small pinpoint depressions found at the junction of developmental grooves or at terminals of these grooves

Back 27

Pit

Front 28

Narrow channel or crevice formed at the depth of a developmental groove

Back 28

Fissure

Front 29

Second premolars have how many lobes?

Back 29

3 buccal, 2 lingual

Front 30

Second premolars have how many lobes?

Back 30

3 buccal, 2 lingual

Front 31

Where is the largest embrasure located?

Back 31

Between max lateral and max canine

Front 32

Second premolars have how many lobes?

Back 32

3 buccal, 2 lingual

Front 33

Where is the largest embrasure located?

Back 33

Between max lateral and max canine

Front 34

Does an embrasure contribute to arch stability?

Back 34

No

Front 35

Part of the crown which is covered by enamel

Back 35

Anatomic crown

Front 36

Lobes are separated by developmental depressions in anterior teeth. What separated lobes for the posterior teeth?

Back 36

Developmental grooves

Front 37

The smallest primary tooth

Back 37

Primary mandibular central incisor

Front 38

Crowns of primary molars are SHORTER and more NARROW MESIODISTALLY at the CERVICAL THIRD than the permanent. True or false?

Back 38

True

Front 39

Enamel ends more abruptly on the permanent teeth rather than becoming thinner. True or false?

Back 39

False

Front 40

Primary tooth whith the most noticeable morphological deviation from permanent teeth

Back 40

Primary first molars

Front 41

First deciduous tooth to erupt

Back 41

Mand CI

Front 42

First deciduous tooth to erupt

Back 42

Mand CI

Front 43

First permanent tooth to erupt

Back 43

Mand 1st molar

Front 44

Anterior teeth with a cingulum located in the CENTER if the lingual surface

Back 44

Max 2 & 3
Mand 1

Front 45

Anterior teeth with a cingulum located in the CENTER if the lingual surface

Back 45

Max 2 & 3
Mand 1

Front 46

Anterior teeth with a cingulum located OFF CENTER to the DISTAL

Back 46

Mand 2 & 3
Max 1

Front 47

Longest and widest anterior tooth

Back 47

Max CI

Front 48

Greatest axial inclination on relation to the occlusal plane and the tooth least likely to have a divided pulp canal

Back 48

Max CI

Front 49

Complication in root planning in maxillary lateral incisor is because of

Back 49

Distolingual groove or palatogingival groove