Only if you created that restore point yourself so the answer will be: NO.

For future usage: use Déjà Dup.

Déjà Dup is a simple — yet powerful — backup tool included with Ubuntu. It offers the power of rsync with incremental backups, encryption, scheduling, and support for remote services.

With Déjà Dup, you can quickly revert files to previous versions or restore missing files from a file manager window. It’s a graphical frontend to Duplicity, which itself uses rsync. It offers the power of rsync with a simple interface.

And always make a backup when altering files unless you can remember what you did ;)