May 27, 2025
Core question: How many teeth do humans have? Why does each tooth have a specific name?
Engaging hook: Like fingerprints, each tooth is unique with distinct functions
SEO keywords: "tooth names chart", "human teeth classification", "teeth functions explained"
Deciduous teeth (20) vs Permanent teeth (28-32)
Four functional groups:
Incisors (cutting)
Canines (tearing)
Premolars (crushing)
Molars (grinding)
Number | Scientific Name | Common Name | Key Features |
1-2 | Central/Lateral Incisor | Front teeth | Chisel-shaped edge |
3 | Canine | Eye tooth | Longest root |
4-5 | First/Second Premolar | Bicuspid | Two cusps |
6-8 | First/Second/Third Molar | - | Wisdom teeth often removed |
(Mirror table structure)
Includes: FDI Tooth Numbering System Diagram
FDI Two-Digit System:
First digit: Quadrant (1-4 permanent, 5-8 deciduous)
Second digit: Tooth position (1-8 from midline)
Example: #16 = Upper right first molar
Clinical Applications:
Medical records ("Caries on 26" = Upper left first molar)
Treatment planning
Insurance documentation
Wisdom teeth (Third molars): Evolutionary remnants
Supernumerary teeth: Extra teeth
Fused teeth: Two joined teeth
Impacted teeth: Failed eruption
Treatment complexity:
Molar root canals (3-4 canals)
Canine extractions (longest roots)
Restoration choices:
Incisors: Aesthetic focus (veneers)
Molars: Durability focus (crowns)
Crocodiles have 50 replaceable teet
Sharks replace teeth weekly
Human incisors withstand 20kg bite force
First numbering system by Greek physicians