How could a planet have zero surface caves?

What could cause a planet to naturally have zero caverns with surface openings apart from small impact hollows in the sides of craters and crevices carved in cliffs?

To be specific, zero large caverns and cave systems with openings on the surface.

(Subsurface caves could exist. BUT if anyone has an idea on how zero caves on the surface AND below the surface could be possible then please feel free explore that idea as well because the less caves the better)

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How could a planet have zero surface caves?

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