First of all never judge any one's work by watching in you tube or in social media.
Because you don't know what materials they are using and what are your dentist doing.
Why you did not ask this query to ur dentist when u was there?
Next Steps
if your restoration gets loosen or chip off or broke out thn only you can ask to ur dentist.
Health Tips
No need to worry. Wait and watch.If you feel any discomfort like above I said , go to ur dentist, tell him about this and get re treated.