How many teeth do adults have on top and bottom năm 2024

Milk teeth are the first teeth babies get. These teeth start developing before a baby is born and will normally start to come through when an infant is between 6 and 12 months old.

By the time a child reaches 3 years they can expect to have a full set of 20 milk teeth. They’ll keep this set for another few years. Keeping these teeth healthy and clean will help them to eat, talk and avoid problems when the adult teeth grow in.

When a child reaches between 5 and 6 years, their milk teeth should start to gradually fall out with adult teeth growing in shortly after.

Read more about caring for your baby’s first teeth and teething

Adult teeth

People can expect that between the ages of 12 and 14 a child will have lost all of their baby teeth. These will have been replaced by a full set of adult teeth.

A full set of adult teeth will amount to 32 teeth in total. This includes the wisdom teeth, which grow in at the back of the mouth. These normally grow in much later and can be expected between 17 and 21 years. For some people wisdom teeth don’t grow in at all. Your dentist will be able to offer advice on wisdom teeth and may be able to advise you, through X-rays, on the progress of your wisdom teeth.

On occasion some people have problems when their wisdom teeth start to come through. This can be down to positioning, space in the mouth or the direction they are growing in. Problems with the wisdom teeth can lead to pain and more serious problems and on occasion they will have to be removed.

Removal of wisdom teeth will depend on the positioning in the mouth. Sometimes removal can take place in your usual dental practice with only local anaesthetic, however some people may need to have them removed in hospital under general anaesthetic.

The different types of teeth

There are different types of teeth:

• incisors are used for chopping and cutting food into small chunks, these are your front teeth and you have 4 on the bottom and 4 on the top
• canine teeth help you to tear chewy food such as meat – you have 2 of these in the top jaw and 2 in the bottom jaw and they are positioned next to your incisors
• premolars are positioned next to your canine teeth – a full set of adult teeth will normally contain 8 premolars with 4 on the top and 4 on the bottom row of teeth, we rely on these teeth for grinding and crushing chunks of food and these teeth are bigger and wider with a flat surface area on the bottom unlike your narrow and sharp front teeth

Molars grow in at the back of your mouth and a full set of adult teeth should have 8 in total with 4 on the top and 4 on the bottom jaw. These teeth are your strongest and we rely on these teeth to grind our food so it’s safe to swallow.

All of you have been to school, right? So all of you would be knowing how many teeth do humans have? Well, you would have answered it perfectly right by saying 32 adult teeth.

Now, do you know how many teeth you have in your mouth, keeping in mind the ones that are removed, damaged, broken, fallen, etc.? If not, then do have a count as we would go ahead and explain the anatomy of a tooth.

A set of 32 teeth in a typical adult includes four incisors, two canine teeth, two premolars and three molars (including the wisdom teeth) in each row. But, the wisdom teeth may need to be removed if,

9. There is not enough room for them to erupt comfortably.

ii) They become infected.

iii) They impact nearby teeth, cause crowding or damage to neighbouring teeth.

Coming to teeth anatomy, every tooth is made up of 3 different layers, namely – Enamel, Dentin, and Pulp.

Enamel:

The outermost layer of the tooth is called enamel which is visible and white in colour. It is a protective layer of the teeth. The enamel is known to be the hardest tissue in the entire body.

Dentin:

The mid-layer of the tooth is called dentin which is just like bone and also serves the same purpose as it gives structure to the tooth. There are millions of tubes that connect to the tooth’s life source called the pulp.

Pulp:

This is the living source of the tooth known as the core, which means the innermost layer. It is made up of nerves and blood.

Apart from the main three layers of the teeth,

9. The part just above the gum line is called the crown, and the one below the gum line is called the roots, attached to the jawbone.

ii) A tissue covering the root’s surfaces is cementum. Its primary function is to fix and support the teeth in the jawbones.

How Many Teeth Do Adults Have?

Right from the age of 5, milk teeth, known as the baby teeth, start falling, and the permanent teeth start growing. As we all know, adults have 32 teeth which are gained by the time we reach our teenage years.

All the adults have four types of teeth – 32 in total, with 16 in the upper jaw and 16 in the lower jaw. Here are the total number, types of teeth, and their function in adults.

8 Incisors:

The front four teeth at the top and the bottom are called incisors which are sharp and thus let you hold, bite, or cut your food. They can sense the texture of the food as well.

4 Canines or Cuspids:

The corner pointed teeth on the top, and bottom corners (two in each row) are called canine teeth, or cuspids. They help in tearing or grabbing the food easily.

8 Premolars:

The teeth between the canines and molars are called premolars (also known as bicuspids). They help us with chewing and grinding our food.

12 molars:

There are 12 molars in total, with four on each row to grind and mush the food before finally being swallowed. The remaining four molars are the wisdom teeth that usually emerge between the ages of 17 – 24 (or even in your 30s).

Oral Hygiene – Take Care Of Your Teeth

Each of your teeth has its own designated function, which it performs during childhood and adulthood. Your responsibility here is to take good care of your teeth and keep your gums healthy in order to avoid cavities and other dental issues.

Even though you brush regularly, it is not the only way you can maintain your dental hygiene. In order to maintain a healthy and clean mouth, you must:

• Brush your teeth twice a day.
• Use a fluoride mouthwash.
• Floss your teeth at least once a day.
• And see your dentist for routine cleanup and exams.

A routine check-up and dental exam gives you a better idea of your teeth’s present condition. A dental check-up every six months can let your dentist know about the early symptoms of any oral disease. This way, you can get the best possible solutions to the problem without indulging in an invasive procedure.

You should also consider visiting the dentist if you experience any unusual symptoms, such as an infection, continuous bleeding, or inflammation.

How Can We Help?

Rouse Hill Smiles Dental Care strives to deliver the finest solutions to you regarding any dental problems. We offer affordable services, including emergency dental care and late-night assistance on Tuesdays and Thursdays, for your convenience.

Visit our website for more offers on various services or visit our clinic for consultations because we believe that you deserve a healthier and more confident smile.

Do we have 16 teeth on top and bottom?

By around 21 years of age, the average person has 32 adult teeth (which includes 4 wisdom teeth); 16 on the top and 16 on the bottom. Some people have less or even more than this number of teeth, which you can discuss with your oral health professional.

How many upper and lower teeth do adults have?

So, how many teeth do adults have? Adults have 32 teeth but 28 if the wisdom teeth are removed. A set consists of 16 teeth in the upper jaw and 16 in the lower jaw. These teeth are divided into four types: incisors, canines, premolars, and molars.

Is it normal to have 28 teeth?

Because many adults have had their wisdom teeth removed, it is common for many people to have only 28 teeth. Usually all adult teeth have formed and erupted into the mouth by the time a person is 21 years old (except for the wisdom teeth, which sometimes don't have space to erupt).

How many teeth does the average 60 year old have?

The average number of teeth present in adults is 24.1 in the population aged 55-59 years, 22.4 in those aged 60-64 years, 19.4 in those aged 65-69 years, 16.8 in those aged 70-74 years, 13.6 in those aged 75-79 years, and 11.3 in those aged 80-84 years. Thus, the number of existing teeth decreases with age [5] .