Dental Anatomy: Wisdom Teeth

Overview

• The video is sponsored by bootcamp.com for INBDE prep
• Focus on wisdom teeth (third molars)
• Universal tooth numbering system:
  • Maxillary: 1, 16
  • Mandibular: 17, 32

Key Statistics

• Up to 35% of patients missing at least one wisdom tooth
  • Trend: Humans evolving to have fewer teeth
• Up to 90% of patients have at least one impacted wisdom tooth
  • Possible reasons: Smaller human jaws

Maxillary Third Molar

• Shortest crown (occluso-cervically) of all teeth
• Often has only 3 cusps (heart-shaped occlusal view)
  • 2 cusps on the facial, 1 on the lingual

Mandibular Third Molar

• Shortest root of all posterior teeth
• Most variable morphology of all teeth
  • Can have 3-5 roots
• Greatest distal root inclination
• Very tapered and convergent roots

Conclusion

• This was the last video on individual teeth
• Upcoming videos: Occlusion and practice questions

Additional Information

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