Question 1

sharks can regenerate teeth so why humans cannot?

Accepted Answer

Can't grow teeth: Sharks teeth are designed to be shed. They form on the inside and roll forward like a tractor tread. When one comes out another rolls forward. If you had teeth like a shark, the new ones would be pointed towards the inside of your mouth. Each species is adapted to it's diet.A.

Question 2

at what age do the roots of the human teeth turn "hard"?

Accepted Answer

Root development : Roots of teeth develope after the crown had developed. They grow in length down from the crown. As far as 'hardness', they  are fully developed once the end of the root narrows.

Question 3

how can sharks constantly have new teeth growing but humans can't?

Accepted Answer

That's normal: Why do elephants have tusks and human's don't?  Same idea.  That's the beauty of the variety of life on this planet.  Sharks need replaceable rows of pointy teeth because they damage them when feeding.  We need a variety of permanent teeth because they have different functions.  It's natural selection.

Question 4

can you tell me about the average size for human canine teeth?

Accepted Answer

Maybe: There was a study that showed the average mandibular (lower canine) was about 22.7-23.0 mm long.  This is from the tip of the tooth to the bottom of the root.  Each person has a different eruption pattern and some may show or less of the crown.

Question 5

please help! what happens to human jaws when all teeth are lost?

Accepted Answer

Atrophy: For the most part, the bone in the jaws atrophies over time without teeth. The lack of internal stimulation results in this loss. That's why older denture patients have so much difficulty with their removable teeth.. There's no bone to support the denture.

Question 6

how many baby teeth do humans normally have?

Accepted Answer

20: 20 teeth usually by the end of their 2nd to 3rd year.

Question 7

how many baby teeth are there in a normal human?

Accepted Answer

20 TEETH: There are 20 primary teeth. Most complete the teething process by 2-21/2 years of age.

Question 8

could use expert help with why are human teeth so fragile?

Accepted Answer

Human teeth: Human teeth are actually not fragile. The enamel covering is one of the hardest natural structures known to mankind. Perhaps compared to a steel girder you might consider it fragile. Humans who bathe their teeth in sugars and acids, don't brush and floss properly, ; don't see their dentist for routine check-ups, cleanings and treatment, suffer the ravages of dental caries due to their own neglect.

Question 9

can any doc tell me what's the average size for human canine teeth?

Accepted Answer

Size: The canine or cuspid is very long, a good anchor tooth. It is generally 25-30 mm long(1-1 1/2 in.).  The top or crown is about 10-12 mm tall and 8-10 mm wide. The point can be worn down over years of wear.

Question 10

i was just wondering how and why does dental plaque form on human teeth?

Accepted Answer

Instantaneously : Less than a second after you stop brushing an aquired  pellicle starts to form on your teeth.This is the nodus or seed of plaque formation.

Get Virtual Care

For Businesses

About Us

HealthTap Online Primary Care Doctors Accepting New Patients

Doctor answers about:

Human teeth how many

A member asked:

Sharks can regenerate teeth so why humans cannot?

A member asked:

At what age do the roots of the human teeth turn "hard"?

A member asked:

How can sharks constantly have new teeth growing but humans can't?

A member asked:

Can you tell me about the average size for human canine teeth?

A member asked:

Please help! what happens to human jaws when all teeth are lost?

A member asked:

How many baby teeth do humans normally have?

A member asked:

How many baby teeth are there in a normal human?

A member asked:

Could use expert help with why are human teeth so fragile?

A member asked:

Can any doc tell me what's the average size for human canine teeth?

A member asked:

I was just wondering how and why does dental plaque form on human teeth?

HealthTap Online Primary Care Doctors Accepting New Patients

Telemedicine

Primary Care

Manage Your Conditions

Women's Health

Children's Health

Men's Health

Senior Health

Wellness, Prevention & Lifestyle

Sexual Health

Mental & Behavioral Health

Travel Medicine

Urgent Care

Didn't find what you're looking for?

More of what we treat

Allergies

Antibiotics

Asthma

High Blood Pressure

Prescriptions

Type 2 Diabetes

For Businesses

Company

Health Content

Join Us

Download HealthTap

Questions?