Dental anatomy & terminology

Identify Deciduous and Permanent Teeth
   - Recognize proper names, functions, and arch positions.
   - Total number of teeth and arrangement per quadrant and arch.
   - Differentiate between anterior and posterior teeth.
   - Diagram dental structures and their relationships.
   - Distinguish eruption sequence of deciduous vs. permanent teeth.
Human Dentition Periods
   - Define three periods and their intervals in human dentition.
   - Identify surface names and thirds of tooth surfaces.
   - Apply line and point angles for tooth identification.
   - Summarize oral and dental anatomy landmarks.
   - Explain common tooth numbering systems: Universal, Palmer notation, FDI System.
Terminology Definitions
- Deciduous dentition, permanent dentition, mastication, occlusion
- Heterodont vs. homodont.

Role of Dental Assistant
   - Assist dentist during procedures.
   - Chart findings during examinations.
   - Learn "dental speak" for effective communication.
   - Example Scenario: Interaction with a patient during an exam.
     - Introduction to the dental assistant.
     - Examples of dental terminology used (e.g., crown, lesion).

Basic Concepts
   - Teeth grow in two arches: upper (maxilla) and lower (mandible).
   - Each arch bisects into left and right halves.
   - Upper Arch
     - Fixed position as part of the skull.
   - Lower Arch
     - Movable jaw enabling actions like talking, chewing, yawning.
Midsagittal Plane
   - Concept of dividing the mouth into quadrants.
   - Four distinct quadrants named:
     - Maxillary Upper Right (UR)
     - Maxillary Upper Left (UL)
     - Mandibular Lower Right (LR)
     - Mandibular Lower Left (LL)

Teeth Count in Quadrants
- Permanent Dentition: 8 teeth per quadrant (32 total).
- Primary Dentition: 5 teeth per quadrant (20 total).
Mastication and Occlusion
   - Importance of teeth positioning for effective biting and chewing.
   - Occlusion also relates to alignment between upper and lower jaws.
   - Misalignment can cause pain and trauma.

Types of Dentition
- Heterodont: Different shapes and sizes (humans).
- Homodont: Same shape/size (lower vertebrates).
Teeth Eruption Phases
- Deciduous Dentition: 20 primary teeth, emerge generally between birth and 2 years.
- Permanent Dentition: 32 adult teeth, emerges from approx. 6 to 18 years.
Eruption Timeline of Dentition
- Deciduous Tooth Types: Only incisors, cuspids, and molars.
- Permanent Tooth Types: Incisors, cuspids, premolars, and molars.

Tooth Types Based on Function
   1. Incisors
      - Function: Cut food.
   2. Cuspids (Canines)
      - Function: Tear food; act as cornerstone of dental arch.
   3. Premolars
      - Function: Chew food.
   4. Molars
      - Function: Grind food.
   - Deciduous Dentition: 20 teeth, three classifications (incisors, cuspids, molars).
   - Permanent Dentition: 32 teeth, all classifications present.

Primary Dentition Period
   - From 6 months to 6 years.
   - Eruption begins with tissue disintegration.
   - Shedding of primary teeth allows for permanent teeth development.
Mixed Dentition Period
- Both deciduous and permanent teeth from around 6-12 years.
- Last primary tooth to fall out is maxillary cuspid.
Permanent Dentition Period
- Only permanent teeth present by approx. 12 years onward.
- Succedaneous teeth replace primary teeth, except molars.

Deciduous Teeth
   - Erupted sequence from anterior to posterior.
   - Mandibular teeth erupt before Maxillary counterparts.
   - Table of eruption for each type of tooth by month (central incisor to second molar).
Permanent Teeth
- Erupted sequence generally leading with first molars (6-7 years).
- Third molars erupt later (17-21 years).

Purpose: Efficient identification and communication about teeth during exams.
Common Systems:
   1. Universal Numbering System: Used in the United States; digits 1-32 for permanent teeth and letters A-T for deciduous teeth.
   2. Palmer Notation Method: Digits 1-8 for permanent teeth; uses quadrant indicators.
   3. FDI System: Two-digit system; first digit indicates quadrant, second digit indicates tooth's position.

Anatomical Crown and Clinical Crown: Definitions and differences.
compositions:
   - Enamel: Hardest material, protective covering for dentin.
   - Dentin: Supports enamel; softer yet mineralized fluid with 30% organic substances.
   - Cementum: Connective tissue anchoring teeth to the bone.
   - Pulp: Houses nerves and blood vessels; vital for tooth vitality.
   - Pulp Cavity and Canal: Differentiate between structures within the tooth.

Teeth Classification: Anterior (incisors, cuspids) vs. Posterior (premolars, molars).
Describing Surfaces:
- Specific terms for anterior and posterior surfaces (i.e., buccal, lingual).
Line Angles and Points: Definitions based on the intersection of tooth surfaces.

Contact Areas: Definition and significance for tooth alignment.
Crown Features: Structures that include elevations (cusps, tubercles) and depressions (fossa, sulcus).

Fundamentals of Dental Practice: Understanding the anatomy, nomenclature, eruption sequences, and charting improves communication and patient care.
Practical Application: Aids in diagnosing dental issues effectively and efficiently.
Future Practice: Continuous application and practice in every aspect of the dental field as a foundation for successful patient interactions and treatments.