After that first tooth breaks through, more and more teeth begin to appear. Most kids have their first set of teeth by the time they are 3 years old. These are called the primary teeth, baby teeth, or milk teeth and there are 20 in all. When a child gets to age 5 or 6, these teeth start falling out, one by one. A primary tooth falls out because it is being pushed out of the way by the permanent tooth that is behind it.
http://kidshealth.org/en/kids/teeth.html
By about age 12 or 13, most kids have lost all of their baby teeth and have a full set of permanent teeth. There are 32 permanent teeth in all — 12 more than the original set of baby teeth. Most people have four teeth (called wisdom teeth) grow in at the back of the mouth when they're between 17 and 25 years old. These complete the adult set of 32 teeth.
http://kidshealth.org/en/kids/teeth.html
Tooth loss is a process in which one or more teeth come loose and fall out. Tooth loss is normal for deciduous teeth (baby teeth), when they are replaced by a person's adult teeth. Otherwise, losing teeth is undesirable and is the result of injury or disease, such as dental avulsion, tooth decay, and gum disease.
https://en.wikipedia.org/wiki/Tooth_loss
Each deciduous tooth root will generally be absorbed by the adult tooth, though there are instances where this does not properly occur. At three months, the incisors begin to fall out to make room for the new adult teeth. At the age of four months, the adult molars and adult canines are beginning to come in. Between the ages of six and seven months, the adult molars will come in. Finally, by seven to eight months, the full set of adult teeth should have come in.
http://www.dailypuppy.com/articles/stages-of-puppy-teeth_843.html
Baby teeth fall out on their own to be replaced with adult permanent teeth. However, adult teeth don’t fall out from natural causes. So that’s the good (and the bad) news. You don’t have to lose your teeth, but if you do, don’t blame nature, in most cases the cause can be found a little closer to home.
http://www.periodontal.co.uk/age-adults-start-losing-teeth/
As you can see, in all the reasons for adults losing their teeth mentioned above, not once have we mentioned old age. No matter your age, your teeth can be healthy. The flip side of that is, if you don’t look after them, you could lose your teeth at any age.
http://www.periodontal.co.uk/age-adults-start-losing-teeth/
So age is really does not a determining factor as to when we start to lose our teeth. Like so many things, lifestyle, diet and good health practices, in this case good oral health practices, are far more important in keeping teeth healthy and determining what age our teeth will start to fall out.
http://www.periodontal.co.uk/age-adults-start-losing-teeth/
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http://www.webmd.com/parenting/baby/primary-baby-teeth-eruption-sequence
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http://www.webmd.com/parenting/baby/primary-baby-teeth-eruption-sequence
Tooth loss typically begins around age six and continues until age twelve. The upper and lower central incisors are shed at age six to seven years. The upper and lower lateral incisors are shed at seven to eight years. The upper canines are shed at ten to twelve years.
https://en.wikipedia.org/wiki/Tooth_loss
what age do teeth fall out?
Teeth are fall out at the age of 5 or 6.