Crowded teeth in children: why space runs out
12 August 2026 · 4 min read
Crowding is rarely about teeth being too big. Usually the jaws simply did not develop wide enough.
A jaw-size problem
Permanent teeth are considerably larger than baby teeth, so the jaws must grow to accommodate them. When jaw development lags — often linked to mouth breathing, low tongue posture or early loss of baby teeth — the teeth overlap.
Why crowding matters beyond looks
Overlapping teeth trap plaque, which raises the risk of cavities and gum inflammation. Severe crowding can also block a permanent tooth from erupting, leading to impaction that is much harder to treat later.
How we create space
Options include arch expansion, holding space after early baby-tooth loss, guiding eruption, and in selected cases carefully planned extractions. Addressing tongue posture and nasal breathing helps keep the result stable.
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