DEH 103: Dental Anatomy

Chapter 1: Introduction to Dental Anatomy

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Kelsie Orndorff

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Kelsie Orndorff

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This flashcard set delves into dental anatomy, covering topics suitable for university-level students. It explores the structure and function of teeth, including the anatomy of molars, premolars, canines, and incisors, as well as the differences between primary and permanent dentition. The flashcards discuss various aspects of tooth surfaces, such as the occlusal, facial, lingual, and proximal surfaces, and their roles in chewing and tearing food. Additionally, it covers the height of contour, the cementoenamel junction, and the pulp's functions. This set is beneficial for dental students and professionals who need a comprehensive understanding of dental anatomy to diagnose and treat dental issues effectively.

Cartes-fiches

Utilisateurs

Langue

Anglais

Catégorie

Médecine

Niveau

Université

Créé / Mis à jour

24.12.2013 / 28.01.2017

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This ridge is formed when 2 triangular ridges join between the buccal and lingual cusps.

Transverse ridge

This is a depression that runs from mesial to distal on the occlusal table.

Central groove

This is the grooves that branch off the central groove towards the line angles. Supplemental groves are shallow.

Triangular developmental grooves

These are vary narrow clefts and depressions at the depth of the grooes, usually caries will begin here.

Pits and fissures

This is shallow derpessions or concavitieis on the lingual of anterior teeth, that may end in a pit.

Fossa

These seperate the tooth lobes, named according to location. (central groove, lingual froove, buccal groove).

Developmental groove

This is the base of the root before dividing. It only occurs in multi-rooted teeth.

Root trunk

This is where the root trunk divides. It creates the _____ which is the space between the roots. (Multirooted teeth only)

Furcation
Furcation Region

This is a division of the root trunk into 2 branches. Seen in mandibular molars and maxillary 1st premolars.

Bifurcation

This is a division in the root trunk into 3 branches. Seen in maxillary molars.

Trifurcation

This is the tip or end of the root.

Apex

This is the division of the anatomical crown from the root.

Cervical Line (CEJ)

Where is the CEJ curveture greater?

Mesial
Distal
Anterior
Posterior

(Choose the two answeres that are correct)

Mesial

Distal

Posterior

Mesial

Distal

Posterior

Which direction does the CEJ curve in the interproximal surfaces?
Which direction does the CEJ curve on the facial and lingual surfaces?

Interproximal: occlusally/incisally
Facial/Lingual: apically

What is the purpose of the height of contour?

It deflects food and stimulates the gingiva.

What happens if the HOC is insufficient or excessive?

Insufficient contour: there is inadequte protection and too much stimulation
Excessive contour: there will be inadequate stimulation

Where is the HOC located on the anterior as compared to the posterior?

Anterior HOC is located more occlusally and will move more cervical as you move posterior

Dr. _____ was the first to describe ideal occlusion in the early 1900's.

Dr. Edward H. Angle

True/False:

The maxillary posterior teeth are slightly more buccal and distal to the corrosponding mandibular tooth.

True

The _____ is where the maxillary curve is convex and the mandibular cure is concave. It is also known as? Another name for the same description is?

Anterioposterior Curve
Curve of Spee
Mediolateral Curve (of Wilson)

What are 2 types of dentition?

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

Primary
Permanent

What is the primary dentition also known as?

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

Baby teeth
Milk teeth
Deciduous teeth

What is the permanent dentition also known as?

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

Secondary teeth
Adult teeth

How many teeth compose the primary dentition?

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

20 teeth

(10 in the maxilla and 10 in the mandible)

What are the 3 classess of teeth in the primary dentition?

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

Incisors (central and lateral)
Canine
Molars (1st and 2nd)

How many teeth make up the permanent dentition?

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

32 teeth

(16 in the maxilla and 16 in the mandible)

What are the 4 classifications of teet in the permanent dentitoin?

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

Incisors (centrals and laterals)
Canines
Premolars (1st and 2nd)
Molars (1st, 2nd, and 3rd)

What is the function of an incisor?

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

They are used to cut food r/t triangular proximal form

What is the function of a canine?

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

Pierce or tear food r/t tapered shape

What is the function of a premolar?

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

They assist the canines in tearing food (1st) and the molars in grinding food (2nd)

*They are only present in the permanent dentition*

What is the function of molars?

They are used to grind food r/t the large occlusal tables and prominent cusps

What are 3 different numbering systems?

Universal Numbering System (1-32) (a-t)
Palmer Notation System (brackets 8-1 and 1-8) (brackets a-e and e-a)
World Dentition (International) Federation (UR #, UL #, LR #, LL #)

What is mixed dentition?

This is when both primary and permanent dentition is present at the same time in the mouth

When does mixed dentition occur?

6-12 years of age

REVIEW ERUPTION TABLES!!!!!!

REVIEW ERUPTION TABLES!!!!!!!

This is the tooth crown. It is made up of the hardest substance in the body.

Enamel

This is the portion of the tooth root, it is very thin.

Cementum

This underlyes the enamel and cementum. It is very soft and is the reason for sensetivity.

Dentin

This is also known as the cervical line or junction. It is where the cementum and enamel meets.

Cemento Enamel Junction (CEJ)

This is the soft tissue, nerves and blood vessels.

What are some other names for it?

Pulp

Pulp cavity, Pulp chamber, Pulp/Root canal

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Cartes-fiches

What are 2 types of dentition?

Primary
Permanent

What is the primary dentition also known as?

Baby teeth
Milk teeth
Deciduous teeth

What is the permanent dentition also known as?

Secondary teeth
Adult teeth

How many teeth compose the primary dentition?

20 teeth

(10 in the maxilla and 10 in the mandible)

What are the 3 classess of teeth in the primary dentition?

Incisors (central and lateral)
Canine
Molars (1st and 2nd)

How many teeth make up the permanent dentition?

32 teeth

(16 in the maxilla and 16 in the mandible)

What are the 4 classifications of teet in the permanent dentitoin?

Incisors (centrals and laterals)
Canines
Premolars (1st and 2nd)
Molars (1st, 2nd, and 3rd)

What is the function of an incisor?

They are used to cut food r/t triangular proximal form

What is the function of a canine?

Pierce or tear food r/t tapered shape

What is the function of a premolar?

They assist the canines in tearing food (1st) and the molars in grinding food (2nd)

*They are only present in the permanent dentition*

What is the function of molars?

They are used to grind food r/t the large occlusal tables and prominent cusps

What are 3 different numbering systems?

Universal Numbering System (1-32) (a-t)
Palmer Notation System (brackets 8-1 and 1-8) (brackets a-e and e-a)
World Dentition (International) Federation (UR #, UL #, LR #, LL #)

What is mixed dentition?

This is when both primary and permanent dentition is present at the same time in the mouth

When does mixed dentition occur?

6-12 years of age

REVIEW ERUPTION TABLES!!!!!!

REVIEW ERUPTION TABLES!!!!!!!

This is the tooth crown. It is made up of the hardest substance in the body.

Enamel

This is the portion of the tooth root, it is very thin.

Cementum

This underlyes the enamel and cementum. It is very soft and is the reason for sensetivity.

Dentin

This is also known as the cervical line or junction. It is where the cementum and enamel meets.

Cemento Enamel Junction (CEJ)

This is the soft tissue, nerves and blood vessels.

What are some other names for it?

Pulp

Pulp cavity, Pulp chamber, Pulp/Root canal

What are the 4 functions of the pulp?

Formative (dentin)
Nutritive
Sensory
Protective (reparative dentin)

This is the visible part of the crown above the gum line.

Clinical crown

This is the portion of the tooth that is covered by enamel.

Anatomical crown

This is the triangle of tissue where teeth meet. This is the portion between the teeth.

Interdental papilla

This is the space that the interdental papilla fills.

Embrasure space

This is the cutting edge of the incisors.

Incisal edge

This is the portion of the tooth nearest to the tongue.

Lingual surface

This is the chewing surface of the posterior teeth.

Occlusal surface

This is the surface of teeth that is locatednearest to the face.

Facial surface

The lingual surface is also known as?

The facial surface is also known as?

Maxilla: palatal
Mandible: lingual

Anterior: Facial / Labial
Posterior: Facial / Buccal

This is the surface that is next to an adjacent tooth.

Proximal surface

This is the surface of the tooth that is closest to the midline.

Mesial

This is the surface of the tooth that is farther away from the mildine.

Distal

This is where the mesials and distals (except central incisors mesial to mesial) meet.

Contact area

This is formed by the junction of two surfaces. Named by 2 surfaces that join.

Line angle

This is the junction that is formed by 3 surfaces that meet.

Point angle

How is the crown to root ratio determined?

Root length is divided by crown length

How many lobes does an anterior tooth form from?

4 total (3 facial and 1 lingual)

How many lobes does a premolar form from?

4 total (3 facial and 1 lingual)

How mnay lobes does a molar form from?

4 or 5 lobes tota (1 for each major cusp)

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DEH 103: Dental Anatomy

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