Would you friend your dentist on Facebook?

Could be risky. What if he or she saw pictures of you eating sugary treats or noticed a wall post confirming — despite your claims — that you don’t floss? According to a recent survey, dentists and orthodontists are struggling to adopt social media. Fifty percent of them have Facebook pages, the survey found. PR pro Jenn Riggle argues that social media is an ideal marketing tool for dentists and orthodontists. “Like hospitals, they’re trying to reach women (and moms), h…