Dental Anatomy Exam 1

Deciduous/primary teeth

What is another name for baby teeth?

Deciduous/primary and permanent

What are the two sets of teeth?

14 weeks old

When do primary teeth start forming?

Three years old

When are primary teeth completely formed?

Six months old

When do primary teeth appear in the mouth?

28 months old

When do the last primary teeth emerge?

Six years old

When do the deciduous teeth start falling out?

Midline

What is the median sagittal plane called in dentition?

Succedaneous

What are the teeth that succeed through lost teeth called?

Mixed dentition

What is it called when a person has both primary and permanent teeth still in their mouth

First, second and third molars

Which teeth are not succedaneous in the mouth?

Two years

How long does a permanent tooth take to form after the primary is lost

When the emergence of the first permanent molar is seen

When does permanent dentition begin?

Maxilla

What is the upper jaw called?

Maxillary teeth

What are the teeth of the upper jaw called?

Mandible

What is the lower jaw called?

Mandibular teeth

What are the teeth of the lower jaw called?

two incisors, one canine, and two molars

Which type/and how many teeth are on 1/2 of an arch in primary teeth

20 teeth

How many primary teeth are there on both arches?

10 teeth

How many primary teeth are there on one arch?

two incisors, one canine, two premolars, three molars

Which type, and how many permanent teeth are there on one half of an arch

32 teeth

How many permanent teeth are there on both arches?

16 teeth

How many permanent teeth are there on one arch?

I2/2 C1/1 M2/2 = 10

What is the primary tooth formula?

I2/2 C1/1 P2/2 M3/3 = 16

What is the permanent tooth formula

The universal method

Which method of the tooth numbering system starts in the right quadrant then drops down to the left and ends on the lower right

Permanent teeth use numbers (1-32) and primary teeth use letters (A-T)

What is the difference between the universal method of permanent and primary teeth?

FDI method

Which method of tooth numbering uses 5,6,7,8 quad for primary teeth?

primary max lateral incisor

What is the 62 tooth in the FDI numbering system

FDI system and Palmer system

Which tooth numbering systems counts from the midline outward in each quadrant?

FDI has the quadrant number in front of the tooth number (31,32,33 etc.)

What is the difference between the FDI and Palmer system?

5Q, 6Q, 7Q, 8Q

What are the primary quadrants in the FDI system ?

1Q, 2Q, 3Q, 4Q,

What are the permanent quadrants in the FDI system ?

Permanent uses numbers (1-8) and primary uses letters (A-E)

What is the difference between the primary and permanent teeth in the Palmer numbering method?

Crown and root

What are the two portions of the tooth?

Enamel

What substance covers the crown?

Cementum

What substance covers the root portion of the tooth

Cementoenamel junction

The junction where the cementum meets the enamel on the tooth

Cervical line

What is another word for the cementoenamel junction?

Dentin

What substance comprises the main bulk inside of the tooth

Pulp

What is the blood/nerve supply of the tooth called?

Pulp cavity

What is the entire space inside the tooth occupied by the dental pulp?

Pulp chamber

What is the part of the pulp cavity that is located in the crown?

Pulp canal

What is the part of the pulp cavity that is located in the root?

Enamel cementum and dentin

What are the three hard tissues of the crown and root?

pulp

What is the one soft tissue of the crown and root?

To protect the soft inside

What is the purpose of the hard tissue on the outside of the tooth?

Alveolar process

What is the bone support for the tooth?

alveolus (alveoli)

What is the bone socket for the tooth?

Eight and nine, 24 and 25

Which teeth is the midline between on both arches?

First premolar, second premolar, first molar, second molar and third molar

Which teeth are considered buccal teeth?

Canine, lateral incisor, medial incisor

Which teeth are considered labial teeth

Lingual

Which direction is on the side of the tongue on the bottom arch

Palatal

Which direction is on the side of the hard pallet on the top arch

Medial

Which direction on the tooth is closer to the midline?

Distal

Which direction on the tooth is farther from the midline?

Labial, lingual, medial, distal, incisal

What are the four surfaces and one ridge of the incisors/canines

Buccal, lingual, medial, distal, occlusal

What are the five surfaces of the pre-molars/molars

Proximal/proximate surfaces

What are the surfaces called that face toured adjoining teeth in the same arch? (Mesial and distal facing eachother/ the space between teeth)

Eight, nine, and 24, 25

Which four teeth have medial surfaces that contact each other

Contact area

What is the area where two mesial surfaces touch called?

Cusp

Elevation or mound on crown portion of tooth

Tubercle

Smaller elevation on some portion of crown produced by extra formation of enamel; a mini cusp

Cingulum

Lingual lobe of anterior teeth

Canines, premolars, molars

Which teeth have cusps?

Ridge

Linear elevation on tooth surface named according to location

Marginal ridge

Rounded borders on mesial/distal margins occlusal surfaces of premolars and molars as well as mesial/distal margins of lingual surfaces of incisors and canines

Triangular ridge

Descend from cusp tops of molars/ premolars toward central part of occlusal surfaces

Pyramid

What shape does a cusp represent?

Mesial, distal, buccal, and lingual cusp ridge

What are the four ridges of the cuspal pyramid

Lingual cusp ridge

Which cusp ridge is only on canines?

Cusp of Carabelli

What is the occasional additional cusp on the maxillary first molar?

transverse ridge

What is the joining of a buccal and lingual triangular ridge

Oblique ridge

What is the ridge crossing obliquely the occlusal surfaces of maxillary molars

Fossa

What is an irregular depression or concavity in the tooth

Lingual fossa

Which fossa is on the lingual surface of the incisors

Central fossa

Which fossa is on the occlusal surface of the molars

Occlusal surface

Which surface of the premolars/molars is the triangular fossa found on?

palatal surface

Which surface of the maxillary incisors is the triangular fossa found on?

Sulcus

The long depression surface of a tooth between ridges and cusps

Oblique ridge

What is the special type of transverse ridge on the maxillary molars that extends from mesiolingual cusp to distobuccal cusp

Mamelon

What is one of the three protrusions normally found on the incisal edge of permanent incisors

Developmental groove

The shallow groove or line between primary parts of a crown

Supplemental groove

The less distinct shallow linear depression on surface of a tooth

Pits

Small pinpoint depressions located at junction of developmental grooves or terminals of those grooves

Lobe

One of the primary sections of formation in the development of the crown

Occlusal table

Portion of a crown on a posterior tooth that is bounded by the cusp tips, crest of the marginal ridges, and crests of the cusp ridges

Apical, middle, cervical

What are the three divisions that the root is divided into?

Cervial, middle, Incisal/occlusal or buccal/labial-middle-lingual

What are the three devisions that the crown is divided into?

Line/point angles

What are the junctions of the crown surfaces known as

Number, shape, size, position, coloration, angulations

What are the six considerations that a dental practitioner looks for on the tooth?

Anatomical crown

The viewpoint of the crown that depends on the CEJ

Anatomical root

The viewpoint of the root that depends on the CEJ

Clinical root

The viewpoint, where one cannot see the route below the gingival margin

Clinical crown

The viewpoint where one can see the crown above the gingival margin, but cannot see the CEJ

Variability

'Normal' morphology and variability in a functional, aesthetics, and statistical sense; i'm various studies because different people have different tooth normalcies

Plaque and caries

What is an increased risk of shovel shaped incisors?

Peg lateral

What is a malformation that has a small lateral incisor

Third molars, max lateral incisors, and mandibular 2nd pre-molars

Which teeth are dental anomalies, most often seen in

Emergence

What is the process of postnatal development of the tooth?