Dentition

What is the general arrangement of teeth in the mouth called?

dentition

Provide two synonymous terms for 'Primary Dentition'.

deciduous teeth and baby teeth

How many total teeth are included in the primary dentition?

20

The state of the dentition when both permanent and primary teeth are present simultaneously is known as _____.

mixed dentition

Between what ages does the mixed dentition period typically occur?

6-13 years

Provide two synonymous terms for 'Secondary Dentition'.

adult dentition and permanent dentition

Define the 'Maxillary Arch'.

The upper arch of teeth

Define the 'Mandibular Arch'.

the lower arch of teeth

How many teeth are typically present in a single permanent arch?

16

How many teeth are typically present in a single primary (deciduous) arch?

10

In dental terminology, what is a 'Quadrant'?

the division of the dentition into fourths

In the quadrant naming system, which number is assigned to the Mandibular Left lower quadrant?

3

Which quadrant name is associated with the number 1?

maxillary right upper

Which quadrant name is associated with the number 4?

mandibular right lower

Which quadrant name is associated with the number 2?

maxillary left upper

The division of the teeth into sixths is referred to as a _____.

sextant

Which area is designated as Sextant 2?

maxillary anterior

Which area is designated as Sextant 5?

mandibular anterior

Which area is designated as Sextant 1?

maxillary right posterior

Which area is designated as Sextant 4?

mandibular left posterior

What is the imaginary line that divides the dentition into right and left halves?

midline

Which two specific types of teeth are categorized as 'Anterior Teeth'?

incisors and canines

Which two specific types of teeth are categorized as 'Posterior Teeth'?

premolars and molars

Define 'Succedaneous Teeth'.

permanent teeth that REPLACE primary teeth of the SAME TYPE

Which permanent teeth replace primary molars?

premolars

Define 'Nonsuccedaneous Teeth'.

permanent teeth that do not replace primary teeth

Which group of permanent teeth are categorized as nonsuccedaneous?

molars

What is the primary function of incisors?

primarily cutting (also for cosmetic, and speech)

How many total incisors (central and lateral) are found in each quadrant?

2

What are the three primary functions of canines?

holding, grasping, and piercing food

How many canines are present in each quadrant?

1

What are the functions of premolars?

holding and assisting with grinding

How many premolars are present in each quadrant?

2

What is the primary function of molar teeth?

grinding food

In dental anatomy, what is the 'Facial' surface?

the surface facing the lip or cheek

Which teeth possess a 'Labial' surface?

anterior teeth only

Define 'Labial' surface.

the surface adjacent to the lip

Which teeth possess a 'Buccal' surface?

posterior teeth only

Define 'Buccal' surface

the surface adjacent to the cheek

Define 'Lingual' surface.

the surface adjacent to the tongue

The surface of the maxillary teeth adjacent to the palate is called the _____ surface.

palatal

Define 'Occlusal' surface.

the chewing surface of the posterior teeth

What is the 'Incisal' surface (or Incisal Edge)?

the biting surface of the anterior teeth

Define 'Proximal' surfaces.

the surfaces in between the teeth

Which proximal surface is closest to the midline?

mesial

Which proximal surface is furthest from the midline?

distal

List the three horizontal thirds used in the 'Mesiodistal' division of facial and lingual surfaces.

distal, middle, and mesial thirds

List the three vertical thirds used in the 'Cervico-occlusal' division of facial and lingual surfaces.

cervical, middle, and incisal/occlusal thirds

Name the three horizontal thirds of a tooth's root.

apical third, middle, and cervical

List the three thirds used in the 'Faciolingual' division of proximal surfaces.

facial, middle, and lingual thirds

In dental anatomy, what is a 'Line Angle'?

the junction of two surfaces on a tooth

Give an example of an anterior line angle

labial and incisal

In dental anatomy, what is a 'Point Angle'?

the point on a tooth where the three surfaces meet

What anatomical feature serves as the center for development of all teeth?

lobes

How many facial and lingual lobes typically develop into incisors, canines, and premolars?

three facial lobes and one lingual lobe

Describe the lobe composition of the Maxillary First Molar

two facial lobes and three lingual lobes

Describe the lobe composition of the Mandibular First Molar.

three facial lobes and two lingual lobes

Define 'Ridge' in terms of tooth anatomy.

a linear elevation of enamel

List the four types of ridges found on teeth

marginal, transverse, triangular, and oblique

Define 'Cusp'.

a mound of extra enamel usually found on the occlusal surfaces

Which three types of teeth typically possess cusps?

canines, premolars, and molars

In tooth morphology, what is a 'Convexity'?

a bumped out area on a tooth

Define 'Fossa'.

a valley-like depression found on tooth surfaces

Where are fossae located on anterior teeth?

lingual surfaces

Where are fossae located on posterior teeth?

occlusal surfaces

Define 'Concavity' in relation to tooth morphology

a carved out or deep dipped area

What is the standard order when naming a tooth verbally?

dentition, arch, quadrant, tooth

What is the numeric range used to identify permanent teeth in the Universal System?

1-32

In the Universal System for primary teeth, what letter is assigned to the upper right tooth?

A

In the Universal System for primary teeth, what is the sequence of letters for the upper arch?

A (upper right) to J (upper left)

In the Universal System for primary teeth, what is the sequence of letters for the lower arch?

K (lower left) to T (lower right)

Which type of tooth root structure is defined by having two roots?

bifurcated

Which type of tooth root structure is defined by having three roots?

trifurcated

The area between adjacent teeth is known as the _____.

interproximal space

What is the term for the v-shaped valleys between teeth that spill food away from contact areas?

embrasures

What is the term for the boundary where the enamel of the crown meets the cementum of the root?

cervical line