When baby will start teething ?

Some are faster & some are slower depending on individual babies. My boy started to have 4 front incisor ( up & down ) when he was 3 months old. By the time he's 8 months, he already have 18 teeth. We started to brush his teeth since he have his first few teeth to protect from decaying. https://www.google.com.sg/search?q=teeth+chart&prmd=ivn&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj4yqWC-pnQAhUMNI8KHURZCKkQ_AUIBygB&biw=375&bih=559#tbm=isch&q=baby+teeth+chart&imgrc=bZQuANOYa6_6oM%3A