Orofacial W10 Anomolies

Question 1

Anomaly

Answer 1

Noticeable different

Question 2

Dental anomaly

Answer 2

Deviations of dental tissue origin derived from enamel cementum or dentin

Question 3

Dental anomalies can be caused by

Answer 3

A multitude of things or by just one small variation in the environment

Question 4

Intrinsic factor

Answer 4

Meaning internal
Ex hereditary, metabolic dysfunction or mutations

Question 5

Extrinsic factor

Answer 5

Meaning external, causes originating outside the body
Ex. Physical/chemical trauma, biologic agent, nutritional deficiency, stress, habits, environmental conditions

Question 6

If a condition occurs due to genetic makeup it is termed

Answer 6

Hereditary

Question 7

Congenital condition occurs at or before

Answer 7

Birth

Question 8

Developmental anomaly condition results during the

Answer 8

Formation and development of teeth

Question 9

2 classification of dental anomalies

Answer 9

Variation in size of teeth
Variation in number of teeth

Question 10

Macrodontia

Answer 10

Teeth are too large

Question 11

Microdontia

Answer 11

Teeth are too small

Question 12

Hyperdontia

Answer 12

Multiple or extra teeth
(Supernumerary)

Question 13

Anodontia

Answer 13

Too few teeth

Question 14

The most common malformed tooth is the ?
Shape of it?

Answer 14

Maxillary lateral incisor
Peg shaped

Question 15

Supernumerary teeth are most commonly located in where in the maxillae and where in mandible

Answer 15

Midline and molar regions (maxillae)
Premolar region (mandible)

Question 16

Maxillary supernumerary teeth outnumber mandibular

Answer 16

9 to 1

Question 17

Most common missing permanent teeth

Answer 17

Maxillary 3rd molars
Maxillary lateral incisors

Question 18

The least likely permanent teeth to be missing is

Answer 18

The canines

Question 19

Mesiodens refers to

Answer 19

Supernumerary teeth in midline of maxillae
(Peg shaped)

Question 20

Fourth molars are termed ?
Located where

Answer 20

Distomolars
Distal to 3rd molar

Question 21

Supernumerary tooth that is situated buccal or lingual into a molar is called

Answer 21

Paramolar

Question 22

If a supernumerary resembles a regular tooth it is termed

Answer 22

Supplemental

Question 23

Cone shaped supernumerary called

Answer 23

Conical

Question 24

If supernumerary is very small it is called

Answer 24

Tubercle

Question 25

Are supernumerary teeth more common in the permanent dentition or primary dentition

Answer 25

Permanent

Question 26

Odontoma is a

Answer 26

Tumerous anomaly of calcified dental tissue

Question 27

2 types of odontoma

Answer 27

Complex Compound

Question 28

Complex odontoma refers to a single mass of

Answer 28

Dentin, cementum and enamel in a large blob or unspecified shaoe

Question 29

Compound odontoma refers to several

Answer 29

Small masses that resemble small rudimentary teeth

Question 30

Dens in dente

Answer 30

Tooth within a tooth

Question 31

Most affected teeth in regard to dens en dente

Answer 31

Perm maxillary lateral incisors (12&22)

Question 32

A severe bend or distortion in the tooth root and crown of more than 40° is termed

Answer 32

Dilaceration

Question 33

A sharp curvature or twist of a tooth ROOT only is called

Answer 33

Flexion

Question 34

Dwarfed roots

Answer 34

teeth have extremely short roots in comparison of size of the crowns

Question 35

Germination is a

Answer 35

Developmental anomaly; when a tooth attempts to divide itself or partially twist itself by splitting its tooth germ

Question 36

Germination could result in twin teeth but in most cases germinated teeth are only

Answer 36

Partially split

Question 37

Germinated teeth typically have a single root and a common

Answer 37

Pulp canal

Question 38

A tooth split into 2 crowns with 2 root would be termed

Answer 38

Bifid tooth or bifurcated crown

Question 39

Form of germination called twinning occurs when

Answer 39

A single tooth germ splits, forming two nearly identical teeth but remaining fused as one

Question 40

Twinning is most commonly seen in the anterior area and more often in what dentition

Answer 40

Promary

Question 41

Fusion occurs when 2

Answer 41

Adjacent tooth germs jnite

Question 42

The fusion of teeth must be made at the

Answer 42

Dentin

Question 43

If the teeth are only connected by their cementum it is not fusion but ?

Answer 43

Concrescence occurred

Question 44

Concresence are originally separate teeth that fuse by their cementum and occurs as a result of

Answer 44

Trauma

Question 45

Hypercementosis

Answer 45

Deposition of excessive amounts of secondary cementum

Question 46

Hypercementosis usually occurs at the

Answer 46

Apex of a tooth

Question 47

Cementoma

Answer 47

Form of hypercementosis that is also associated with localized destruction of bone

Question 48

Enamel pearls are what? Where are they found ?

Answer 48

Small masses of excess enamel (misplaced group of ameloblasts) Found at bifurcation or trifucation

Question 49

Hutchinsons incisors

Answer 49

Notched incisors sometimes called screwdriver shape Formed as a result of prenatal syphilis

Question 50

2 types of enamel dysplasia

Answer 50

Enamel hypoplasia Enamel hypocalcification

Question 51

What causes enamel hypoplasia

Answer 51

Any condition that inhibits enamel formation (fever, inflammation, systemic disease) Results in small pits or grooves in crowns

Question 52

Enamel hypocalcification caused by a condition

Answer 52

That inhibits the calcification of enamel

Question 53

Most common form of enamel hypocalcification

Answer 53

Enamel fluorosis

Question 54

Enamel fluorosis is caused by

Answer 54

Excessive fluoride in the tooth structure

Question 55

Enamel fluorosis can range from small white flecks to large

Answer 55

Opaque areas to brownish spots

Question 56

Mottled enamel

Answer 56

Brownish in colour Severe cases of enamel fluorosis

Question 57

Amelogenesis imperfecta

Answer 57

When enamel is present, it’s thin, and stained with various shades of yellow and brown

Question 58

Hypocalcification of a single tooth, usually maxillary incisor

Answer 58

Turners tooth

Question 59

Turners tooth occurs if a developing permanent tooth is affected by a

Answer 59

Local infection or trauma

Question 60

Dentinogenisis imperfecta presents as

Answer 60

Dentin is gray brown or yellow and the tooth has a translucent hue

Question 61

The most striking feature of dentinogenesis imperfecta is that

Answer 61

Pulp chamber and root canal are completely filled with dentin

Question 62

Tetracycline staining presents as

Answer 62

Tooth discolouration: yellow to brown or greyish blue

Question 63

If expectant mother or young child with developing crown takes tetracycline antibiotics then what occurs

Answer 63

Tetracycline staining