The composition of teeth

Dr. Waldman Dentistry Toronto will explain you the composition of teeth.

Teeth are composed of three parts:

Crown – the outer, visible part of the tooth

Root – the part of the tooth that is embedded in the jaw bone

Neck of the tooth – narrow part connecting the crown and root of the tooth

Although at first glance teeth look compact, they are built from multiple tissues and together they give the necessary resilience and strength.

Inside each tooth there is the dental pulp (wrongly known as “nerve” of the tooth) in which besides the nerves that make the tooth sensitive to hot / cold, pain and pressure contain blood vessels that feed the tooth, lymph vessels, defense cells and connective tissue. Along with other cellular components, blood vessels and nerve fulfill pupil chamber through the root canal which is connected with the surrounding tissue around the tips of the roots. Pulpits chamber are externally limited by the middle layer – dentin.

Dentin builds bulk of the tooth despite its hardness (which is greater than the strength of the bones) has a great ability to adapt.

At the root level, dentin is covered with cement – solid tissue that protects the tooth root and along with other tissues it links the tooth with the tooth cup – alveolus.


The dentin is covered by enamel – crystalline substance with the greatest resistance in the human body. Enamel is created before the tooth grows and its construction is definitive –it could not be re-created throughout life. It is therefore important to pay attention to proper nutrition of women during pregnancy and of children before the permanent growing of their teeth.

Pregnancy is a reference period of major changes in the body of the mother and the health of the teeth and mouth is directly related to this period. This relationship applies to the following factors:

A frequent treatment of diseased teeth is often needed during the pregnancy period

The pregnant woman notices tooth decay or any kind of teeth disease

Therefore, the knowledge of the various influences that occur in this period is significant – for the mother and the newborn child.

Most people have a false belief that every pregnancy costs the mother one tooth. The alleged explanation for this is the fact that the mother increases the need for calcium in the body and this leads to a decrease of calcium in the teeth. Calcium is a stable compound (hydroxyl apatite) which is being formed during the formation of teeth i.e. during the mineralization of teeth and the process is irreversible.

Unlike the calcium in teeth, the one located in the bones (the other mineralized tissue in the body) is in a form that satisfies the needs of the body and it is easier to pass into the bloodstream and from there to incorporate into your bones.

Accordingly, if the food does not contain enough calcium to cover the needs of the organism, that calcium would be extracted from the bones and not from the dental tissues.