It is easier to get them to forget what they are dependent on NOW! Take his bottles away first, just do it one day, out of sight out of mind.
Later it will be a power struggle when they go into toddlerhood to try and get rid of them. Start by taking it away during the day and just save it for naps and bedtimes,then in a few months take away the nap ones, then the bedtime ones. He is still young, typically they say to take it away at the year mark but I wouldn't worry too much when he sleeps yet.
I have personally seen what the damage does to the roof of their mouth and front teeth from one of the boys I watch, but his parents took it away by 2 and everything went back into place in his mouth. They made a big deal out of it on his second bday to get big boy toys and throw the pacies out, he did just fine.
Just keep it out of his mouth during the day if you can, replace his need for comfort with a lovey or stuffed animal, that will make the night time transition easier when you decide to do it.