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permanent tooth
noun
: any of the second set of teeth of a mammal that follow the milk teeth, typically persist into old age, and in humans are 32 in number
Examples of permanent tooth in a Sentence
Recent Examples on the Web
In fact, when 75 percent of their water contained at least 0.7 milligrams of fluoride per liter, there was a 30 percent reduction in the rate of decay in primary teeth and a 12 percent reduction in the rate of decay in their permanent teeth.
—Sam Walters, Discover Magazine, 18 Dec. 2024
This is done mainly for immature permanent teeth, allowing the root to develop.
—Laura Schober, Health, 1 Dec. 2024
Within a decade, cavities in 6-year-olds’ permanent teeth had dropped by 84%.
—Corinne Purtill, Los Angeles Times, 5 Nov. 2024
When a wisdom tooth or a permanent tooth in a child begins to grow in, a pocket of tissue forms over the tooth.
—Sarah Hudgens, Health, 4 Oct. 2024
Side effects are rare, though this therapy can cause tooth discoloration (fluorosis) in the developing permanent teeth of children under the age of six.
—Mark Gurarie, Health, 13 Sep. 2024
But when my permanent teeth grew in, they were spaced too far apart on top and crowded against each other on the bottom; my gums bled at humiliating moments.
—Bobi Conn, TIME, 23 May 2024
While there, Danielle learns that all five of them will need orthodontic treatment once their permanent teeth grow in.
—Julia Moore, Peoplemag, 3 May 2024
There would be no way to save the baby teeth or permanent teeth on the right side.
—Eric Adler, Kansas City Star, 4 Feb. 2024
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Word History
First Known Use
1799, in the meaning defined above
Dictionary Entries Near permanent tooth
Cite this Entry
“Permanent tooth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/permanent%20tooth. Accessed 30 Dec. 2024.
Kids Definition
permanent tooth
noun
: one of the second set of teeth of a mammal that follow the milk teeth, usually last into old age, and in human beings are 32 in number
Medical Definition
permanent tooth
noun
: one of the second set of teeth of a mammal that follow the milk teeth, typically persist into old age, and in humans are 32 in number including 4 incisors, 2 canines, and 10 premolars and molars in each jaw
More from Merriam-Webster on permanent tooth
Britannica.com: Encyclopedia article about permanent tooth
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