Final - Anomalies

Question 1

three parts of tooth

Answer 1

enamel, dental papilla, dental sac

Question 2

dentin and pulp make up this

Answer 2

dental papilla

Question 3

cementum, periodontal ligament, alveolar bone mke up this

Answer 3

dental sac

Question 4

enamel is made of blank

Answer 4

ectoderm

Question 5

dental papilla and dental sac are made of blank

Answer 5

mesoderm

Question 6

stages of tooth growth

Answer 6

bud, cap, bell, crown

Question 7

The dental lamina differentiates and tooth buds appear on the dental lamina in approximate location of the 20 primary teeth.

Answer 7

bud stage

Question 8

round form of the tooth bud is altered. The basal portion invaginates and the structure thus takes on the form of a cap

Answer 8

cap stage

Question 9

deepening of the concavity of the cap formation. During this time most of the enamel and dentin is formed

Answer 9

bell stage

Question 10

twinning of a tooth. siamese tooth most common with incisor

Answer 10

gemination

Question 11

union of two different teeth

Answer 11

fusion

Question 12

The union, by way of the
cementum, of the roots of two or
more teeth

Answer 12

concrescence

Question 13

Results from infolding of the enamel organ whereby dentin and enamel become reversed inside the pulp chamber

looks like a tooth in a tooth

Answer 13

dens in dente

Question 14

Extra teeth that may occur in both the permanent and deciduous dentition

Answer 14

supernumerary teeth/accessory teeth

Question 15

A supernumerary tooth found at the midline of the palate between the maxillary central incisors

Answer 15

mesiodens

Question 16

Supernumary tooth found distal to the third molar

Answer 16

distodens

Question 17

A large number, or all of the teeth are absent (teeth not formed)

Answer 17

anodontia

Question 18

Large number of teeth that have not erupted, but have all formed (are impacted)

Answer 18

pseudoanadontia

Question 19

Teeth that do not erupt or partially erupt
Usually due to an obstacle in the way, preventing eruption (often other teeth)
Common with third molars

Answer 19

impacted teeth

Question 20

Teeth out of the normal position

Answer 20

transposition

Question 21

Deciduous teeth present at the time of birth

Answer 21

neonatal teeth

Question 22

all teeth are abnormally large (macrodontia due to pituitary gigantism) or small (due to pituitary dwarfism)

Answer 22

micro/macrodontia

Question 23

Incomplete crown formation

Most commonly seen with maxillary lateral incisors

Answer 23

peg teeth

Question 24

Extra enamel projection on a crown most often seen on the cingulum area

Answer 24

talon cusp

Question 25

Small spherical nodules of enamel

surrounding a dentin core

Answer 25

enamelomas

Question 26

bull teeth Caused by disorganization of calcified tissues, possibly with dentitions subjected to heavy use

Answer 26

taurodontia

Question 27

Both are distortions of tooth formation and are a result of traumatic injury or pressure on the developing tooth

Answer 27

dilaceration/flexion

Question 28

blank is a drug that can stain dentin

Answer 28

tetracycline

Question 29

Dysplasia of enamel due to a disturbance at the time of enamel formation

Answer 29

enamel hypoplasia

Question 30

Dysplasia of enamel with a hereditary basis

.. faulty amyloblasts

Answer 30

amelogenesis imperfecta

Question 31

Genetic disturbance of dentin formation resulting bluish brown unesthetic crowns

Answer 31

dentinogenesis imperfecta

Question 32

A genetic condition resulting in defective formation of ectodermal structures and causes premature aging

Answer 32

ectodermal dysplasia

Question 33

Defective Membrane Bone Formation:Clavicles, Skull & Mandible

Answer 33

cleidocraniodyostosis

Question 34

Benign tooth tumor which includes both ectodermal and mesodermal tissues
Results from infection or trauma disturbing the dental lamina

Answer 34

odontoma