Scratched Teeth After Cleaning?

Well, Dear for cleaning ultrasound is used which isn't strong enough to destroy enamel. Due to plaque formation you feel that your teeth are smooth but in reality your teeth anatomy is far from it. Once it was removed in the cleaning you find fracture lines, ridges and fossa.
But still if you want to clear your doubts you can see your dentist so that they can do some polishing.

It would be very uncommon for teeth to become visibly scratched during a routine hygiene visit. It is most likely that you have a little chip that you are now aware of because of your recent focus on your teeth after your dental visit. I suggest scheduling an appointment and letting the dentist know that you have a scratch that needs polishing.