No, baby teeth are generally smaller than permanent teeth.
Understanding the Size Difference
Multiple sources confirm that adult teeth are significantly larger than baby teeth. This size difference is crucial for several reasons:
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Jaw Growth: Baby teeth act as placeholders, guiding the growth and development of the jawbone. Larger permanent teeth require more space, which is why there's often spacing between baby teeth. https://thomasorthodontics.com/why-large-gaps-between-baby-teeth-are-nothing-to-worry-about/
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Chewing and Function: Adult teeth are stronger and larger, better equipped to handle the increased demands of chewing and biting associated with adult diets. https://www.sunshinesmilesfl.com/blog/baby-teeth-matter/ Baby teeth are perfectly suited for the needs of a growing child, but they aren't designed for the long-term demands of an adult's diet.
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Shape Differences: Besides size, baby teeth also differ in shape. They are often described as more square-shaped compared to the more rounded adult teeth. https://www.sedarosoralsurgery.com/blog/baby-teeth-vs-permanent-teeth/
While some might perceive primary molars as larger than permanent premolars, this is due to the necessary spacing to accommodate the incoming, larger permanent teeth. This is known as "leeway space". https://www.reddit.com/r/askdentists/comments/18gzfdr/baby_teeth_bigger_than_adult_teeth/ This apparent discrepancy doesn't change the overall fact that adult teeth are ultimately bigger.
The difference in size between baby and adult teeth is a natural part of development, ensuring proper jaw growth and optimal chewing function throughout life.