Excited about elder sister's marriage

Hey, my elder sister is getting married on this June. It was totally unexpected and everything happened really fast. My parents were in search of a groom and a proposal came from our neighborhood. The engagement was held in the last week and my dad had to fix the marriage very soon.

My sister didn't get enough time to prepare for the marriage. She was really disappointed about her engagement and complains that she looks ugly in the pics. Her gummy smile showed up in the photographs.

Now, she is in a demand that she needs to get cosmetic dental services from Ajax before the marriage. Is it possible to have her smile fixed within two months?