Dental Anatomy - Introduction and Terminology

Flashcards covering dental anatomy terminology, tooth classifications, numbering systems, and periodontal structures based on the ORBG 5005 lecture notes.

Primary Dentition

Also known as deciduous teeth; consists of a total of $20$ teeth with $5$ teeth per quadrant. NO PREMOLARS

Mixed Dentition

The stage of dentition occurring approximately between the ages of $6$ and $12\text{ years}$.

6 year molars (1st molars) erupt first

Tuberosity Area

The anatomical area located behind the maxillary molars.

Retromolar Area

The anatomical area located behind the mandibular molars.

Succedaneous

A permanent tooth that replaces a primary tooth, specifically incisors, canines, and premolars.

Non-succedaneous

Permanent teeth that do not replace primary teeth, specifically the $1\text{st}$, $2\text{nd}$, and $3\text{rd}$ molars.

Palmer Notation

A system where each quadrant has a bracket indicating location followed by a number $1$ to $8$.

International System

A two-digit numbering system where the first number indicates the quadrant ($1$ to $4$) and the second number indicates the tooth ($1$ to $8$, starting from the central incisor).

Attached Gingiva

Gingiva that is bound to the underlying alveolar bone.

Free Gingiva

A collar of thin gingiva that surrounds each tooth.

Alveolus

The socket or cavity where the root of the tooth is held.

Periodontium

The collective tissues that anchor, support, and protect the teeth, including gingiva, cementum, alveolar bone, and PDL.

Cementum

The tooth tissue that covers the root surface.

Periodontal Ligament (PDL)

Fibers that connect the cementum on the tooth root to the alveolar bone, anchoring the tooth into the socket.

Anatomic Crown

The portion of the tooth covered by enamel.

Anatomic Root

The portion of the tooth covered by cementum.