Is dental covered by any warranty in nsw?

Long story short,my kid had to get a filling,went to a bupa dental clinic

24-30 hours later,the filling in it's entirety fell out,just a gaping hole now.

Is dental work covered by any sort of goods of quality work in australia,or will we have to fork out again for it.

Clarification,they didn't eat,or drink for 6 hours after..and was eating a sushi roll when it came out..so nothing hard

Was at bupa at castle hill,surely it's bad workmanship so they have to eat any costs right?

more a question of IS Dental protected by a goods warranty of work,not this place in particular a google didnt help me