Lip tie?

Riki✌🏽️
My son is 10 months old and started cutting one of his top teeth. I was so excited I posted pictures on Facebook and now I've had several people tell me my son has a lip tie. I've honestly never heard of a lip tie until today. This is the best picture I can get. He's not breastfed due to the hospital giving him a bottle in the nursery even though I wanted to EBF. Friend's are saying this could also be another reason why he didn't take. 
Is this a lip tie?