What is the normal age to start teething in babies?

Varies: The first teeth to erupt are usually the 2 lower front teeth at around 6 months. It is possible for babies to be born with teeth or take as long as a year to erupt but the average is 6 months. Most children should have all 20 primary teeth fully erupted by age 2 or 2 and half years of age.

Early: About 4-5 months but of course it varies.

Usually around 6 mos: While teething can begin as early as 3 months, most likely you'll see the first tooth start pushing through your baby's gum line when your little one is between 4 and 7 months old.

4-8 months: Most infants start teething between 4-8 months of age. There is a very wide range of what is normal. I have seen several infants born with bottom front teeth already and many who didn't get their first tooth till 9-14 months old. In almost all cases it just works it own way out as the child grows.