Tooth Morph

Question 1

What teeth usually have 2 cusps of similar height?

Answer 1

Maxillary 2nd premolars

Question 2

____________is the largest in newly erupted tooth and reducing in size throughout adulthood as_______________

Answer 2

pulp chamber, secondary dentine is laid down

Question 3

________are entrance of root canal ?

Answer 3

Orifices

Question 4

Canal shape is generally wider (buccolingually/mesialdistally) ?

Answer 4

buccolingually

Question 5

The (buccal or lingual) side of tooth 36 has 3 cusps ?

Answer 5

Buccal

Question 6

The oblique ridge of max. molar is found towards (buccal/palatal) side ?

Answer 6

Palatal

Question 7

Mand. second pre molar can have either 1 or 2 (lingual/buccal) cusps

Answer 7

lingual

Question 8

________is where root trunk divide into seperate roots ?

Answer 8

Furcation

Question 9

Weine’s classification is for____rooted teeth ?

Answer 9

single

Question 10

Most roots have a longitudinal root concavity (depression) that is usually deeper (mesially/distally)

Answer 10

distal

Question 10

What are the weine’s type for max. central & lateral incisors are usually ?

Answer 10

• almost always 1

Question 11

_________is the opening to root canals ?

Answer 11

Root orifice

Question 12

Orifices can be which 3 shapes ?

Answer 12

Circular, oval, c-shaped

Question 13

What are the weine’s type for Mand. INCISORS ?

Answer 13

• 56-70% type 1, 25-30% type 2, 5-15% type 3

Question 14

What is the weine’s type for Mand. canines ?

Answer 14

• 70% type 1, 20% type 2, 10% type 3

Question 15

What are the weine’s types for Max. canine ?

Answer 15

• almost always type 1

Question 16

• Max. 1st pre molar has how many roots ?
• What are the no. of canals PER ROOT for Max. 1st pre molar ?

Answer 16

• 1-3 roots, 95% have 2
• 1 canal PER ROOT (bucal + lingual)

Question 17

What are the weine’s types for Max. 2nd pre molar ?

Answer 17

• normally 1 root
• 53% type 1, 35% type 2 & 3, 11% 2 ROOTS w/ 2 or 3 canals in total

Question 18

• What are the weine’s types for Mand. pre molars

Answer 18

• normally 1
• 73% type 1, 27% w/ 2 canals and sometimes type 3

Question 19

Max. 1st molars have how many roots & canals ?

Answer 19

normally 3 roots w/ 4 canals in total

Question 20

Max. 2nd molars have how many roots & canals ?

Answer 20

normally 3 roots w/ 3-4 canals in total (62% has 3 canals, 38% has 4 canals)

Question 21

Which root of Max. 2nd molars can have 1 or 2 canals ?

Answer 21

Mesial

Question 22

Mand. 1st molars have how many roots & canals ?

Answer 22

2 roots w/ 3 or 4 canals in total (67% has 3 canals, 33% has 4 canals)

Question 23

Mand. 2nd molars have how many roots & canals ?

Answer 23

2 roots w/ 3 or 4 canals (90% has 3 canals)

Question 24

What is the biggest cusp on maxillary 1st molar ?

Answer 24

MesioPalatal

Question 25

The (mesio/distal) marginal ridge is more bulged in primary max. canines ?

Answer 25

Mesio

Question 26

The (mesio/distal) marginal ridge is more bulged in primary mand. canines ?

Answer 26

distal

Question 27

The (mesio/distal) marginal ridge is more straight in perm. canines

Answer 27

Mesio