Can ultrasonic teeth cleaning make holes in my teeth that werent there before i got the cleaning done?

Ultrasonic cleaning: Ultrasonic cleaning is done using vibration plus copious water spray. It does not make holes in teeth. However, it may feel like there are holes if there was heavy calculus (tarter) between the teeth to begin with. Once the calculus is removed, it opens up the spaces between the teeth that were filled with the calculus. This is especially noticeable between the lower front teeth.

No: Ultrasonic scalers used by dental hygienists are designed to "vibrate" off plaque and hardened deposits (tartar). Intact tooth structure will not be harmed.

No: Although there are ultrasonic instruments that are powerful enough to "drill" teeth, those are not the same ones used to clean your teeth. The ones used for tooth cleaning purposes are designed to just clean teeth. Properly used by a dental professional, there is minimal chance of any damage to teeth.

No: If you got your teeth cleaned and are noticing holes that weren't there before, it is probably due to plaque and calculus being removed from your teeth and exposing the already present cavities. It is not possible for a cleaning to make holes in your teeth.

No but...: If you have unhealthy enamel already (decalcification spots on your teeth), extensive, improper use of ultrasonic devices can cause cavitation (holes) that weren't there before. Now for this to happen, the teeth have to be pretty darn weak to begin with. So really, the answer to your question is no.