Ch. 5 - Developmental Disorders (Review Questions)

Front 1

Name three types of disorders.

Back 1

*Developmental

*Inherited

*Congenital

Front 2

The primitive oral cavity is called?

Back 2

Stomodeum

Front 3

The maxillary process forms what?

Back 3

*upper cheeks

*lateral upper lip

*portion of the palate

Front 4

The mandibular process forms what?

Back 4

*Lower cheeks

*Mandible

*Portion of the tongue

Front 5

Tooth development is called?

Back 5

Odontogenesis

Front 6

Name the three parts of the tooth germ.

Back 6

*Enamel organ (ameloblasts)

*Dental papilla (Odontoblasts)

*Dental sac or follicle (from mesenchyme)

Front 7

What proliferates to form the root?

Back 7

Hertwig's epithelial root sheath

Front 8

Fusion of the lingual frenum to the floor of the mouth.

Back 8

Ankloglossia

Front 9

Found in the corners of the mouth.

Back 9

Commissural lip pits

Front 10

Thyroid tissue found on the midline of the tongue.

Back 10

Lingual thyroid nodule

Front 11

Found around the crown of an unerupted tooth.

Back 11

Dentigerous (follicular cyst)

Front 12

Found around the crown of an erupting tooth.

Back 12

Eruption cyst

Front 13

Found in the place of a tooth.

Back 13

Primordial cyst

Front 14

Found in the mandibular cuspid-premolar soft tissue area.

Back 14

Gingival cyst

Front 15

Found between the maxillary central incisors and is heart shaped.

Back 15

Nasopalatine cyst

Front 16

Found between the maxillary lateral and cuspid and is pear shaped.

Back 16

Globulomaxillary cyst

Front 17

A soft tissue cyst located in the maxillary canine and floor of the nose area.

Back 17

Nasolabial cyst

Front 18

Located along the thyroglossal tract to the thyroid gland.

Back 18

Thyroglossal duct cyst

Front 19

A developmental depression in the mandible.

Back 19

Static (stafne) bone cyst

Front 20

Absence of the primary or permanent teeth.

Back 20

Anodontia

Front 21

Absence of one or more teeth.

Back 21

Hypodontia

Front 22

The most common supernumerary tooth.

Back 22

Mesiodens between the max. central incisors

Front 23

The most common microdontia teeth.

Back 23

*Peg laterals, max. lateral incisors,

*Max third molars

Front 24

A larger than normal tooth

Back 24

Macrodontia

Front 25

A single tooth with a bifrid crown.

Back 25

Gemination 1 to 2

Front 26

Union of two adjacent tooth germs

Back 26

Fusion 2 to 1

Front 27

Roots of adjacent teeth are connected by cementum.

Back 27

Concrescence

Front 28

An abnormal curve in a root.

Back 28

Dilaceration

Front 29

Short roots with abnormal large pulp chambers

Back 29

Taurodontism

Front 30

The enamel organ folds into the crown of the tooth (usually the maxillary lateral).

Back 30

Dens in dente

Front 31

The most common places for supernumerary roots.

Back 31

*Max. and Man. 3rd molar

*Man. premolars and cuspids

Front 32

Name six causes of enamel hypoplasia

Back 32

*Malnurisment

*Flouride

*Syphilus (congential)

*Illness

*Birth injury & premature birth

* Infection

Front 33

What causes the type of enamel hypoplasia that has tiny deep pits and stains?

Back 33

Illness or vitamin deficiency

Front 34

What causes the type of enamel hypoplasia that has a mottled discoloration ranging from chalky white to brown-black.

Back 34

Flouride ingestion

Front 35

What causes enamel hypocalcification?

Back 35

Trauma to enamel during maturation phase

Front 36

What antibiotic can cause endogenous staining of teeth?

Back 36

Tetracycline

Front 37

What are the most common teeth to be impacted?

Back 37

*Mand. 3rd molars

*Max cuspids

Front 38

When the primary tooth prevents the eruption of the permanent tooth this is called?

Back 38

Ankylosis