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How Many Molar Teeth Are Found in the Mouth?

Published in Dental Anatomy 2 mins read

There are 12 molar teeth found in the mouth of an adult human.

The Molar Count: A Detailed Look

An adult human typically has twelve molars in total. These essential teeth are symmetrically distributed, with six molars in the upper jaw and six molars in the lower jaw. This count includes the four wisdom teeth, which are also classified as molars.

Understanding Your Molars

Molars are the largest and strongest teeth located at the back of the mouth. Their primary function is to grind and crush food into smaller, digestible pieces, facilitating proper digestion.

There are generally three types of molars on each side of both the upper and lower jaws:

  • First Molars (6-year molars): These usually erupt around the age of six.
  • Second Molars (12-year molars): These typically emerge around the age of twelve.
  • Third Molars (Wisdom Teeth): These are the last teeth to erupt, usually between the ages of 17 and 25.

Here's a breakdown of molar distribution:

Molar Type Upper Jaw (Left & Right) Lower Jaw (Left & Right) Total per Jaw Overall Total
First Molars 2 2 4 4
Second Molars 2 2 4 4
Third Molars 2 2 4 4
Total Molars 6 6 12 12

The Role of Wisdom Teeth

Often a topic of discussion, wisdom teeth are indeed the third set of molars. They are included in the total count of 12 molars. While they serve the same grinding function as other molars, their late eruption can sometimes lead to complications such as impaction, where they don't have enough space to emerge properly. Not everyone develops all four wisdom teeth, and some may have them removed due to dental issues, but when present, they contribute to the full set of 12 molars.

Molar Development and Importance

Molars play a crucial role in overall oral health and digestion. Their large, flat chewing surfaces are designed for powerful grinding. Maintaining good oral hygiene for your molars, including brushing and flossing, is vital to prevent cavities and gum disease, as their position at the back of the mouth can sometimes make them harder to clean effectively. Regular dental check-ups can help monitor the health and development of all your teeth, especially the molars. For more information on dental anatomy, you can refer to resources from reputable organizations like the American Dental Association.