Exam 1

Question 1

tooth with longest crown

Answer 1

mandibular canine

Question 2

longest tooth overall

Answer 2

max canine

Question 3

widest tooth mesiodistally

Answer 3

mandibular 1st molar

Question 4

widest tooth buccolingually

Answer 4

maxillary 1st molar

Question 5

narrowest tooth mesiodistally

Answer 5

mandibular central incisors

Question 6

generally, teeth have a greater proximal cervical line curvature on the ________ than the _____

Answer 6

greater proximal cervical line curvature on MESIAL instead of DISTAL

Question 7

proximal cervical line curvatures are greatest on the mesial surface of?

Answer 7

central incisors (max)

Question 8

proximal cervical line curvatures get smaller moving what direction in the mouth?

Answer 8

posteriorly

Question 9

on many posterior teeth, the cervical line is in more _____ position on the lingual than on the facial?

Answer 9

occlusal

Question 10

facial crest of curvature for all teeth is?

Answer 10

cervical third

Question 11

lingual crest of curvature for all anterior teeth is?

Answer 11

cervical third on the cingulum

Question 12

lingual crest of curvature for all posterior teeth is?

Answer 12

middle third (slightly more occlusal in mandibular teeth due to lingual tilt)

Question 13

all incisor, all canines and two cusped premolars have how many lobes?

Answer 13

4

Question 14

3 cusped premolars have how many lobes?

Answer 14

5

Question 15

How do you determine number of lobes for molars? How many are there for 3 cusped, 4 cusped and 5 cusped molars?

Answer 15

Number of molar lobes= 1 per cusp
3 cusps= 3 lobes
4 cusps= 4 lobes
5 cusps= 5 lobes

Question 16

mesial root depression probability max and man incisors?

Answer 16

Max cent= not likely
max lat= variable
mand cent= yes
mand lat= yes

Question 17

distal root depression probability max and man incisors?

Answer 17

Max central and lateral= NO

mandible central and lateral= yes (and deeper than mesial)

Question 18

is the mesial cervical line curve greater or lesser than distal on both the central and lateral incisors?

Answer 18

mesial cervical is GREATER

Question 19

proximal contacts for mesial AND distal for mandibular centrals and laterals are where?

Answer 19

incisal third

Question 20

What incisor has the most cervical proximal contact? What side?

Answer 20

maxillary lateral incisors on middle third of distal surface

Question 21

proximal contacts for mesial AND distal for maxillary centrals and laterals are where?

Answer 21

incisal third for both for mesial surface
max central distal= incisal/middle third
max lateral distal= middle third

Question 22

the outline of maxillary lateral incisor compared to central is?

Answer 22

central= triangular
lateral= oval

Question 23

Diff between central and lateral incisor?

Answer 23

central shallow larger lingual fossa and less frequent pit, distally positioned cingulum. Lateral deep but small fossa with lingual pit; centered cingulum.

Question 24

facet

Answer 24

wear results in a shiny flat surface of enamel on incisal edge. In normal wear, labial for mandibular incisors and lingual wear on maxillary incisors

Question 25

mamelons

Answer 25

found on incisal teeth, if still present in an adult it indicates an open bite, 3 mamelons on incisal edge (1 per lobe)

Question 26

Parts of periodontium?

Answer 26

Gingiva
Cementum
Periodontal ligament
Supporting alveolar bone
Alveolar mucosa

Question 27

dental plaque verses calculus?

Answer 27

• Dental plaque =biofilm of microorganisms that adhere to teeth; contribute to development of diseases and decay
• Dental calculus =tartar, hard mass that forms on teeth due to calcification of dental plaque

Question 28

alveolar bone is seen on x-rays as?

Answer 28

lamina dura

Question 29

cementoenamel junction

Answer 29

It is the location where the enamel, which covers the anatomical crown of a tooth, and the cementum, which covers the anatomical root of a tooth, meet

Question 30

longest root?

Answer 30

maxillary canine

Question 31

Perikymata

Answer 31

numerous horizontal ridges on the enamel of newly erupted permanent teeth