Dental Anatomy Quizzes/FINAL EXAM

maxillary arch

the teeth in the upper jaw ( the upper jaw is the "maxilla")

occlusion

the contact of the maxillary and mandibular arch "the bite"

line angle

the junction of two tooth surfaces

curve of Spee

the curve formed the occlusion from anterior (front) to posterior (back)

mandibular arch

the teeth in the lower jaw ( the lower jaw is the "mandible")

primary dentition

the first set of 20 teeth (baby teeth)

permanent dentition

the secondary set of 32 teeth

embrasure

the triangle formed by the contact of two proximal teeth

Convex means

Curving (or bulging) outward

Choose below which groups of teeth are Anterior teeth:

• molars

• incisors

• canines

• premolars

Incisors and canines

Above is a diagram of a:

class II occlusion

class I occlusion

class II division 2 occlusion

class III occlusion

class III occlusion

The first permanent molars usually erupt_______________.

• At about age 6 (5-7)

• Distal to the primary molars

• All of the above

• Before the second permanent molars

All of the above

The cervical third of the crown and the root refers to:

• the middle 1/3 of the crown and root

• the occlusal edge of the crown

• the area where the crown and the root meet

• the apex of the root

the area where the crown and the root meet

Choose from below the permanent teeth that are succedaneous:

• central incisors

• premolars

• canines

• molars

central incisors, premolars, and canines are succedaneous

There are _______ teeth in the primary dentition.

20

The primary teeth do not have premolars, and the permanent premolars are succedaneous to the primary molars. True or False?

True

The mouth can be divided into 4 sections called:

• arches

• dentitions

• sextants

• quadrants

quadrants

The mixed dentition period begins with the eruption of the first permanent tooth. True or False?

True

Using this anatomical chart, what is the correct indication?:

• tooth #29 indicates a DO amalgam

• tooth # 16 indicates a OB amalgam

• tooth #1 indicates an OL amalgam

• tooth #21 indicates a DO amalgam

tooth #1 indicates an OB amalgam.

In ideal centric occlusion the maxillary permanent dentition should slightly overjet the mandibular permanent teeth. True or False?

True

Buccal surfaces face the  ___________;  and lingual surfaces face the____________.

• cheek; tongue

• tongue; labial

• lips; lingual

cheek; tongue

There are premolars in the primary dentition. True or False?

False

Using this geometric chart, determine the indication:

• the primary left 1st molar indicates an occlusal amalgam

• the permanent left 1st premolar indicates an occlusal amalgam

• the primary right central incisor indicates a MIL filling

• the primary left central incisor indicates a MI filling

the primary left 1st molar indicates an occlusal amalgam

cusp of Carabelli

a fifth cusp found lingual to the ML cusp of the permanent maxillary first molar

cingulum

raised, round area on the lingual surface, at the gingival third of anterior teeth

furcation

the area of the start of root divisions of teeth with 2 or more roots (mostly the molars-primary and permanent)

diastema

space between adjacent teeth (esp: the maxillary central incisors)

cusp

major elevation on the occlusal surfaces posterior teeth AND canines

mamelon

round enamel bumps on the incisal edge of newly erupted permanent incisors

morphology

the study of form and shape

fossa

wide, shallow depression on the lingual surface of anterior teeth (just incisal of the cingulum)

Choose from below the teeth that have a palatal root (three roots):

• maxillary 2nd premolar

• primary maxillary 2nd molars

• permanent maxillary 1st molars

• maxillary 2nd molars

• primary mandibular 1st molars

• mandibular 2nd molar

• maxillary 1st premolar

• permanent mandibular 1st molars

• primary maxillary 2nd molars

• permanent maxillary 1st molars

• maxillary 2nd molars

Choose from below the teeth that have a cingulum:

• maxillary incisors

• maxillary canines

• maxillary premolars

• mandibular premolars

• maxillary molars

• mandibular molars

• mandibular incisors

• mandibular canines

• maxillary incisors

• maxillary canines

• mandibular incisors

• mandibular canines

fossa

shallow depression on the lingual surfaces on anterior teeth

bifurcation

area at which two roots divide

apex

tip of the root of a tooth

mamelon

rounded extension of enamel on the incisal edge of newly erupted incisors

cusp

the prominent enamel extensions of the occlusal surfaces of posterior teeth (and canines)

this is a drawing of:

a maxillary 1st premolar

this is a drawing of:

a primary maxillary molar

this is a drawing of:

a mandibular molar

this is a drawing of:

a maxillary central incisor

The Cusp of Carabelli is a fifth cusp found on the mesial-lingual surface of:

• mandibular 2nd molar

• mandibular 1st molar

• maxillary 2nd molar

• maxillary 1st molar

maxillary 1st molar

hydroxyapatite (HAP)

material that forms the hard structure of bones and teeth

frenum

the tissue attachments that bind the oral mucosa to the dental arches

vermilion border

border of the lips to the facial skin (think 'lip liner')

histology

the study of human tissues at a microscopic level

mucogingival junction

the line between the attached gingiva and the alveolar mucosa

periodontium

structures that surround, support, and are attached to the teeth

embryology

the study of prenatal development

vestibule

space between the teeth and the inside of the cheeks and lips

The dorsal of the tongue contains the lingual frenum. True or False?

False

The pear-shaped bump between the maxillary incisors on the hard  palate is:

• the lingual frenum

• the incisive papilla

• the labial frenum

• the vermilion border

the incisive papilla

The filiform papillae are the bigger, redder papillae that cover the dorsal surface of the tongue and have the taste buds. True or False?

False (this describes fungiform papillae)

The large, raised papillae on the posterior of the tongue are and arranged like a V are:

• filiform papilla

• foliate papillae

• vallate papillae

• fungiform papillae

vallate papillae

match the correct face feature to the appropriate numbers:

#5

#13

#12

#8

#1&2

#3

#5- tragus of the ear

#13- zygoma and zygomatic arch

#12- angle of the mandible

#8- the bridge of the nose

#1&2- outer and inner canthus of the eye

#3- ala of the nose

match the tooth parts with the appropriate corresponding numbers:

#2

#5

#3

#4

#6

#1

#2- unattached gingiva

#5- DEJ: dentinoenamel junction

#3- cementum

#4- CEJ: cementoenamel junction

#6- enamel

#1- PDL: periodontal ligament

match the numbers to the correct description in the soft palate

#3

#4

#2

#1

#3- posterior faucial pillar

#4- tonsils

#2- anterior faucial pillar

#1- uvula

match each number to the description of the gingiva

#4

#3(dotted line)

#1

#5

#2

#6

#4- attached gingiva

#3(dotted line)- mucogingival junction

#1- interdental papilla

#5- alveolar mucosa in the mandibular vestibule

#2- marginal gingiva

#6- a buccal frenum

___________ is the study prenatal development before birth and ___________is the study of tissue structure and function at a microscopic level.

embryology / histology

Place in chronological order the embryonic development stages of a human.

1st- preimplantation stage (zygote)

2nd- embryonic stage (embryo)

3rd- fetal stage (fetus)

Select the three embryonic layers: 

• mesoderm

• mucosalderm

• epiderm

• stomodeum

• endoderm

• ectoderm

• mesoderm

• endo derm

• ectoderm

The three stages of formation of the palate are formation of the primary palate, formation of the secondary palate, and fusion of the palate. True or False?

True

The process of deposit of bone is called resorption and

the process of bone loss or removal is called deposition. True or False

False

match the name of the cell to its function

• Odontoblasts

• Osteoblasts

• Ameloblasts

• Osteoclasts

• Cementoblasts

• Fibroblasts

• Odontoblasts- forms dentin

• Osteoblasts- forms bone

• Ameloblasts- forms enamel

• Osteoclasts- breaks down bone

• Cementoblasts- forms cementum

• Fibroblasts- forms PDLs (periodontal ligaments)

State the three periods of odontogenesis, the process of tooth formation:

Growth, Calcification, and Eruption

The Anatomic crown is the portion of the tooth that is covered with enamel.

The Clinical crown is the portion of the tooth that is visible in the mouth. True or False?

True

What are enamel rods?

They are very small units of tooth enamel that makes acid etch work and also help to resist fractures. 

A pit

is a deep hole in enamel from two developmental grooves cross each other.

A fissure

is a fault line along a developmental groove on the occlusal surface caused by incomplete joining of the lobes.

Match the dentin category to its description:

• Secondary dentin

• Primary dentin

• Tertiary dentin

• Secondary dentin- forms AFTER eruption

• Primary dentin- forms BEFORE eruption

• Tertiary dentin- forms as a response from irritation

Match the cementum category to its description:

• Secondary cementum

• Primary cementum

• Secondary cementum- forms after the tooth has erupted and in occlusion

• Primary cementum- forms as the root develops

match the oral mucosa type to its description

• specialized mucosa

• lining mucosa

• masticatory mucosa

• specialized mucosa- mucosa with papilla, dorsum side of the tongue

• lining mucosa- buccal, vestibule, underside of tongue

• masticatory mucosa- keritinized, attached gingiva, palatal mucosa

orbital region

area around the orbit or eyes

lacrimal bones

small facial bones that form the medial side of the orbit (surround the tear ducts)

alveolar process

a process of the maxilla and mandible that socket the teeth

a foramen

a hole in the bone that allows veins, arteries, and nerves to pass through

zygomatic process

the maxillary bone process that articulates with the zygoma

temporomandibular joint (TMJ)

the joint between the mandible (condyle) and the skull (temporal bone)

mental region

area inferior to the lower lip and superior to the chin (pout)

Match the region to the number indicated

#1

#2

#3

#4

#5

#1- Occipital region

#2- Oral region

#3- Frontal region

#4- Temporal region

#5- Orbital region

A hole in a bone is called a foramen. True or False?

True

A bony partition or a wall in a cavity is called a ridge.

False

The cranial bone that is the floor of the cranium is:

Ethmoid bone

The one bone that does not articulate with another is the:

hyoid bone

What are #s 11, 6, and 13?

#11- mandibular foramen

#6- coronoid process

#13- mental foramen

The scooped out part of the skull that articulates with the condyloid process is called: 

the glenoid fossa

What muscle is shaded in red?

Trapezius

Choose the muscles of the tongue:

• stylohyoid

• palatoglossus

• mylohyoid

• palatopharyngeus

• genioglossus

• hyoglossus

• palatoglossus

• genioglossus

• hyoglossus

The salivary gland that is in the cheek is the parotid gland and the saliva flows out of the Stenson duct. True or False?

True

The common artery brings blood to the external carotid artery to the maxillary and mandibular arteries. True or False?

True

The deep cervical lymph nodes run along the internal jugular vein and can be palpated along the sternocleidomastoid muscle.

True

Choose from below the cranial nerves that are motor nerves for the eye:

• abducans

• vestibulocochlear

• oculomotor

• hypoglossal

• trochlear

• abducans

• oculomotor

• trochlear

Name the Cranial nerve the has a sensory maxillary and mandibular division that is anesthetized with local anesthetic to make the teeth numb for dental work. 

Trigeminal nerve (V)