Filling dream meaning is explained below using 2 different sources. Each interpretation is shown with its source.

Interpretation 1 — Dr. Mıchael Lennox

If a filling makes itself known to you after it has been put in your mouth, there is likely something wrong with it. As such, most dreams about fillings have to do with the idea of one becoming loose or otherwise compromised. In this way, such a dream is about a long-ago problem coming back to challenge you once again, especially a problem around insecurity and having a strong and powerful voice.
Source: Complete Dictionary of Dreams Author: Dr. Mıchael Lennox

Interpretation 2 — Zolar

lucky numbers: 12-17-19-25-29-45

bottles: happiness for the woman of the house.

gas station, at a: increase of income for little price.

handbag, a: wil receive a gift of jewelry.

hole, a: enjoy amusements too much of the time.

of: wil be involved in a secret transaction.

pockets: honor.

up: satisfaction breeds laziness.

Source: Zolar’s Book of Dreams Numbers and Lucky Days Author: Zolar