A cavity !
once a cavity is formed in the teeth the teeth doesn't have the capacity to repair itself .but we can fill the cavity artificially
if it is a big hole yes but if it is a small hole they will fill it in
A swallow hole, i hope that was a good help for you. :-)
Black hole tunnel is formed by strong electromagnetic waves moving in a rythmic way.
A hole is formed in the ozone by CFC's. It is not actually a hole but less concentration.
Drill?
A hole in space-time is formed by A dead star that collapses
See your dentist ASAP.
A hole saw works by rotating and cutting into materials using sharp teeth on its edge. The teeth create a clean and precise hole by removing material as the saw spins. The size and shape of the hole saw determine the size and shape of the hole it creates.
A black hole does not create a star. A black hole is formed when a star dies.
Ozone hole is formed in late winters and early spring. It is because of the low temperatures.
Dimple . I think that's what you meant.