How many roots in a molar


Teeth are designed to chew food, which improves digestive function. A tooth consists of several parts: the crown, the root, and the neck, which connects the outside and inside of the tooth.

The number of roots in human teeth

There can only be one tooth crown, but the number of roots in a tooth depends on its location and purpose. The number of roots is also affected by hereditary factors. To determine how many roots in the tooth can only be determined by X-ray. The inside of the tooth (root) makes up about 70% of the tooth.

Factors that affect the number of roots:

The location of the tooth.

Functionality (masticatory or frontal).

Genetic predisposition.

Age and race of the patient. The European race has a very different number of tooth roots than the Negro and Mongoloid races.

The tooth numbering system

A molar tooth has how many roots

Dentists have developed a system by which all teeth have their own ordinal number. The numbering system for the lower and upper teeth will not allow you to get “confused” about the teeth.

Under the first number go the incisors – the front teeth of the upper and lower row. There are two teeth on each side (left and right) #1 – central, #2 – lateral, behind which are canines, numbered #3. The small molars have #4 and #5.

All of the teeth listed have one cone-shaped root each.

Teeth #6, 7, 8 – large molars each have three roots, and tooth #6 of the lower row has one root, the exception is tooth #8, which may have 3 or even 4 roots.

How many canals are in the teeth

The number of canals in a tooth is not always the same as the number of roots. It is only possible to determine the number of canals with the help of an X-ray. Upper incisors usually have two or three canals. Some teeth have only one canal, which branches into two parts.

How many roots do large molars have

The number of canals in teeth:

Upper Lower Fourth – 1, rarely 2 canals;

Upper second – 1, rarely 2 or even 3 canals;

Lower fifth – one canal;

Upper first molar – 3, 4 canals;

Lower first molar – 3, rarely 2 canals;

Upper and lower seven – 3, 4 canals.

How many canals has a wisdom tooth

Tooth number 8 or the third molar has some differences between the upper and lower teeth. First, not all people can have an eighth, which is due to genetics. Secondly, the wisdom tooth can cause some dental diseases, so the eight is often removed.

What to do to avoid problems with tooth number 8?

Here everything is very simple – you just need to use a special toothbrush and visit the dentist 2 times a year. Experienced professionals will always be ready to help and conduct a complete dental care.

Why do teeth need a nerve?

A feature of the structure of the tooth is the presence of nerve endings in it. The number of nerve endings depends on the number of roots and canals.

Purpose of the dental nerve

The nerve affects the development and growth of the tooth.

The nerve makes the tooth sensitive to external stimuli.

The dental nerve turns the tooth from an organ for chewing into an independent living organism of the mouth.

Tooth Disease Prevention

To prevent dental disease, you should practice good oral hygiene:

Brush your teeth in the morning and evening

Rinse after each meal;

Make sure you visit your dentist once a year for a checkup.