Chapter Five Oral Pathology For Dental Hygienist

Front 1

What term refers to a defect present at birth?

Back 1

Congenital Defect

Front 2

What term refers to the origin and tissue formation of teeth?

Back 2

odontogenesis

Front 3

What term refers to the joining of teeth by cementum only?

Back 3

concrescence

Front 4

Which teeth are most often missing?

Back 4

Third Molars

Front 5

Which tooth is the most common supernumerary tooth?

Back 5

Mesiodens

Front 6

Which teeth most often appear smaller than normal?

Back 6

Maxillary lateral incisors

Front 7

Which term refers to the developmental anomaly that arises when a single tooth germ attempts to divide and results in the incomplete formation of two teeth?

Back 7

Gemination

Front 8

Which term refers to the developmental anomaly that arises from the union of two normally separated adjacent tooth germs?

Back 8

Fusion

Front 9

Which term refers to an abnormal angulation or curve in the root or crown of a tooth?

Back 9

Dilaceration

Front 10

Which term refers to the developmental anomaly in which teeth exhibit elongated large pulp chambers and short roots?

Back 10

Taurodontism

Front 11

Which developmental anomaly is often associated with a nonvital tooth and periapical lesions?

Back 11

Dens in dente

Front 12

Which teeth most often exhibit supernumerary roots?

Back 12

Maxillary third molars

Front 13

Which term describes the appearance of enamel hypoplasia resulting from a febrile illness or vitamin deficiency?

Back 13

Pitting defects

Front 14

Which term describes the appearance of enamel hypoplasia resulting from congenital syphilis?

Back 14

Hutchinson incisors

Front 15

Which term describes the appearance of enamel hypocalcification?

Back 15

Chalky white spots

Front 16

Which term describes a tooth that has not erupted because of the lack of eruptive force?

Back 16

Embedded

Front 17

Which teeth are often the most often impacted?

Back 17

Mandibular third molars

Front 18

What term describes a tooth in which bone has fused to cementum and dentin and prevents eruption of an underlying permanent tooth?

Back 18

Ankylosed

Front 19

What cyst is not an odontogenic cyst?

Back 19

Median palatal cyst

Front 20

The most common cause of the periapical cyst is:

Back 20

caries

Front 21

Which cyst is an odontogenic intraosseous cyst that forms around the crown of a developing tooth?

Back 21

Dentigerous cyst

Front 22

Which cyst develops in place of a tooth?

Back 22

Primordial cyst

Front 23

Which cyst is characterized by its unique histologic appearance and frequent recurrence?

Back 23

Odontogenic keratocyst

Front 24

The lateral periodontal cyst is defined by its location. In which area is the lateral periodontal cyst most commonly found?

Back 24

Between the mandibular cuspid and first premolar

Front 25

The teeth are vital with all of the following cysts except:
A. Nasopalatine canal cyst
B. Cyst of the palatine papilla
C. Dentigerous cyst
D. Periapical cyst

Back 25

Periapical cyst

Front 26

Which cyst is characteristically pear shaped?

Back 26

Globulomaxillary cyst

Front 27

Which cyst is a periapical cyst that was left behind after the extraction of the offending tooth?

Back 27

Residual cyst

Front 28

With which cyst may a patient complain of dysphagia?

Back 28

Thyroglossal tract cyst

Front 29

Which cyst is considered a psuedocyst?
A. Odontogenic keratocyst
B. Traumatic bone cyst (stafne)
C. Lymphoepithelial cyst
D. Primordial cyst

Back 29

Traumatic bone cyst (stafne)

Front 30

In addition to the odontogenic keratocyst which lesion would the hygienist suspect is a radiograph revealed a multilocular radiolucency?

Back 30

Aneurysmal bone cyst

Front 31

Which term refers to the adhesion of the tongue to the floor of the mouth?

Back 31

ankyloglossia

Front 32

Which location is the most common for lip pits?

Back 32

Commissure

Front 33

Which term refers to an ectopic mass of thyroid tissue located on the dorsal tongue?

Back 33

Lingual thyroid

Front 34

Which term refers to the total absence of teeth?

Back 34

Anodontia

Front 35

Which term refers to the lack of one of more teeth?

Back 35

Hypodontia

Front 36

Which tooth is the second most common supernumerary tooth?

Back 36

Distomolar

Front 37

Which term refers to abnormally small teeth?

Back 37

Microdontia

Front 38

Which term refers to abnormally large teeth?

Back 38

Macrodontia

Front 39

Which location is the most likely for an enamel pearl?

Back 39

Maxillary molars

Front 40

Which location is the most likely for a talon cusp?

Back 40

Incisors

Front 41

Which term refers to an accessory cusp located on the occlusal surface of a tooth?

Back 41

Dens evaginatus

Front 42

Which term refers to the enamel hypoplasia of a permanent tooth that results from infection of a deciduous tooth?

Back 42

Turner tooth

Front 43

Which term refers to the irregular areas of discoloration that result from fluoride ingestion?

Back 43

Mottling defect

Front 44

Which term refers to teeth that appear ghostlike on a dental radiograph?

Back 44

Regional odontodysplasia

Front 45

Which term refers to teeth that cannot erupt because of physical obstruction?

Back 45

Impacted