Bad teeth are the biggest turn-offs on people's dating profile, according to the Metro.
While it is no surprise that online dating can be a tad superficial, you are ultimately judged on your looks before people learn about your personality.
Research conducted by Plusnet also found cheesy bio lines are another big no for people.
47% of people also revealed they would not want to get to know someone who's profile picture is a topless photo.
With Valentine's Day just around the corner, don't forget to brush those pearly whites and show them off in pristine condition....