Teeth Anatomy

Molars

Back teeth that grind food

Premolars

The teeth immediately behind the canines; used in chewing, grinding, and shearing food. The bicuspid teeth

Canine

pointed, dog-like teeth next to the incisors

Incisors

front teeth

Crown

Visible part of the tooth

Neck

where the crown and root meet

Root

anchors tooth firmly in jaw

Enamel

hard, outermost layer of a tooth

Dentin

Dense tissue forming the bulk of a tooth.

Pulp Cavity

soft tissue within a tooth, containing nerves and blood vessels

Root Canal

the pulp-filled cavity in the root of a tooth

Periodontal Ligament

attaches tooth to jaw

Cementum

material covering the tooth root

How many cusps does a incisor tooth have?

Just one cusp

What kind of cingulum do the incisor teeth have

a small cingulum

For the 4 maxillary (top) teeth, what are the sizes and names from left tor right?

lateral (smaller), central (larger), central (larger), lateral (smaller)

For the 4 mandibular (lower) teeth, what are the sizes from left to right?

They are the same size, being lateral, central, central, lateral.

How many incisors are there typically?

8

How many roots does an incisor typically have?

1

Do the sizes of the incisor differ from maxillary incisors to mandibular incisors?

Yes, they are sized differently, the top maxillary incisors vary while the mandibular incisors are the same size

How many cusps does a canine typically have and what shape is it?

1; sharp

How many cingulum do the canines typically have and what size is it?

1; large, making it look round

How many canines are there typically?

4

How many roots do the canines have?

1

What are the canines for?

to tear and rip food

What are the incisors for?

to bite food off into smaller sizes

What shape would the canines be viewed as?

Sharp

How many cusps do premolars have?

2

Typically, when the premolar has 2 roots, it is a

maxillary premolar

What are the premolars for?

aid in grinding and crushing food

How many premolars are there?

8 premolars

Does the amount of roots differ from the mandibular premolars and maxillary premolars?

Yes, mandibular premolars have 1 root while maxillary premolars typically have 2 roots

What is the dental term for premolars?

Bicuspid

How many roots do mandibular premolars have?

1

How many roots do maxillary premolars have?

Typically 2

Does the amount of cusps on the molars vary based on if they’re maxillary or mandibular?

Yes, maxillary molars have 4 cusps and the mandibulary molars have 5 cusps

Do molars have cingulum?

Yes

Name for cingulum on mandibular molars

Cingulid

What are the third molars called?

Wisdom teeth

What are molars for?

primary grinders and crushers of food

How many molars are there?

Typically 12, counting the wisdom teeth that sometimes don’t appear.

How many roots do the molars have?

Both maxillary molars and mandibular molars have 2 roots.

How many incisors are on the mandible and the maxilla?

4 on both.

How many canines are on the mandible and the maxilla?

2 on both

How many premolars are on the mandible and the maxilla?

4 on both.

How many molars are on the mandible and the maxilla? Include the (third molars) wisdom teeth.

6 on both.

Cavity (detal caries):

little holes where bacteria have started to erode the enamel.

Stress lines

when lines of growth are haltedd (indicating large stress events), they leave lines/grooves on the teeth.

Name one genetic variation

Carabelli’s Cusp on the molar: an extra cusp on the lingual side of the maxillary molar.

Define edentuious

the loss of all of the teeth