DentistryLesson 2 of 2 in the course Endodontics and oral surgery

Wisdom Teeth: Development, Impaction, Assessment, and Treatment

5 flashcards · 5 quiz questions · 5 match pairs · 4 fill-in sentences · English

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Summary

This lesson introduces wisdom teeth, explains when and how they develop, and explores their anatomy and possible role in chewing.

A wisdom tooth, formally called a third molar or clinically an M3, is the most posterior of the three molars in each quadrant of the human dentition. Most adults have four, one in each quadrant, but some people have none, fewer than four, or additional teeth. Extra teeth are called supernumerary teeth.

All flashcards

What is a wisdom tooth?
It is a third molar, the most posterior molar in each quadrant of the human dentition.
What does supernumerary mean?
It describes an extra tooth beyond the usual number, including an additional wisdom tooth.
What is agenesis of wisdom teeth?
Agenesis is the congenital absence of one or more wisdom teeth.
What are common features of mandibular third molars?
They are the smallest permanent molars, often with a rounded rectangular crown, four or five cusps, and reduced, sometimes fused roots.
How might modern diets relate to impaction?
Softer foods require less chewing. Associated changes in jaw size and shape may leave less space for teeth to erupt normally.

Quiz questions

  1. What is meant by prophylactic removal of an impacted wisdom tooth?Answer: Removal while it is symptom-free and disease-free.
  2. Which factor can influence the risk of inferior alveolar nerve injury during lower wisdom tooth removal?Answer: The roots' proximity to the mandibular canal.
  3. What does an operculectomy involve?Answer: Removing excess gum tissue that covers a tooth.
  4. What do studies suggest about platelet-rich fibrin after lower wisdom tooth removal?Answer: It may reduce pain, swelling, and dry-socket risk.
  5. What is recommended when a disease-free, symptom-free impacted wisdom tooth is retained?Answer: Regular dental check-ups to monitor for emerging problems.

Based on the Wikipedia article Wisdom tooth, licensed CC BY-SA 4.0. Adapted into a summary, flashcards and quizzes.

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