Natal teeth are

teeth A tooth ( : teeth) is a hard, calcified structure found in the jaws (or mouths) of many vertebrates and used to break down food. Some animals, particularly carnivores and omnivores, also use teeth to help with capturing or wounding prey, t ...

that are present above the gumline (have already erupted) at

birth Birth is the act or process of bearing or bringing forth offspring, also referred to in technical contexts as parturition. In mammals, the process is initiated by hormones which cause the muscular walls of the uterus to contract, expelling the f ...

, and neonatal teeth are teeth that emerge through the

gingiva The gums or gingiva (plural: ''gingivae'') consist of the mucosal tissue that lies over the mandible and maxilla inside the mouth. Gum health and disease can have an effect on general health. Structure The gums are part of the soft tissue lin ...

during the first month of life (the

neonatal An infant or baby is the very young offspring of human beings. ''Infant'' (from the Latin word ''infans'', meaning 'unable to speak' or 'speechless') is a formal or specialised synonym for the common term ''baby''. The terms may also be used to ...

period). The incidence of neonatal teeth varies considerably, between 1:700 and 1:30,000 depending on the type of study; the highest prevalence is found in the only study that relies on personal examination of patients. Natal teeth, and neonatal teeth, can be the baby's normal deciduous teeth, sprouting prematurely. These should be preserved, if possible. Alternately, they could be supernumary teeth, extra teeth, not part of the normal allotment of teeth.

Signs and symptoms

Most often natal teeth are mandibular central incisors. They have little root structure and are attached to the end of the gum by soft tissue and are often mobile.

Causes

Most of the time, natal teeth are not related to a medical condition. However, sometimes they may be associated with: * Ellis–van Creveld syndrome *

Hallermann–Streiff syndrome Hallermann–Streiff syndrome is a congenital disorder that affects growth, cranial development, hair-growth, and dental development. There are fewer than 200 people with the syndrome worldwide. One notable organization that is supporting peopl ...

Pierre Robin syndrome Pierre Robin sequence (; abbreviated PRS) is a congenital defect observed in humans which is characterized by facial abnormalities. The three main features are micrognathia (abnormally small mandible), which causes glossoptosis (downwardly displa ...

Sotos syndrome Sotos syndrome is a rare genetic disorder characterized by excessive physical growth during the first years of life. Excessive growth often starts in infancy and continues into the early teen years. The disorder may be accompanied by autism, mild ...

Treatment

No intervention is usually recommended unless they are causing difficulty to the infant or mother. However some recommend that they be removed as the tooth can cut or amputate the tip of the tongue. They should be left in the mouth as long as possible to decrease the likelihood of removing permanent tooth buds with the natal tooth. They should also not be removed if the infant has

hypoprothrombinemia Hypoprothrombinemia is a rare blood disorder in which a deficiency in immunoreactive prothrombin (Factor II), produced in the liver, results in an impaired blood clotting reaction, leading to an increased physiological risk for spontaneous bleedin ...

. In case of complications when the natal teeth need to be removed, dental radiographs should be obtained whenever possible, and evaluated and followed up with pediatric dentists.

Notable cases

Napoleon Bonaparte Napoleon Bonaparte ; it, Napoleone Bonaparte, ; co, Napulione Buonaparte. (born Napoleone Buonaparte; 15 August 1769 – 5 May 1821), later known by his regnal name Napoleon I, was a French military commander and political leader wh ...

Louis XIV , house = Bourbon , father = Louis XIII , mother = Anne of Austria , birth_date = , birth_place = Château de Saint-Germain-en-Laye, Saint-Germain-en-Laye, France , death_date = , death_place = Palace of Ver ...

* Richard III * Ivan the Terrible *

Kate Mulgrew Katherine Kiernan Maria Mulgrew (born April 29, 1955) is an American actress and author. She is best known for her roles as Captain Kathryn Janeway on '' Star Trek: Voyager'' and Red on ''Orange Is the New Black''. She first came to attention ...

* Honoré Gabriel Riqueti, comte de Mirabeau *

Cardinal Mazarin Cardinal Jules Mazarin (, also , , ; 14 July 1602 – 9 March 1661), born Giulio Raimondo Mazzarino () or Mazarini, was an Italian cardinal, diplomat and politician who served as the chief minister to the Kings of France Louis XIII and Louis X ...

* Cardinal Richelieu *

Zoroaster Zoroaster,; fa, زرتشت, Zartosht, label= Modern Persian; ku, زەردەشت, Zerdeşt also known as Zarathustra,, . Also known as Zarathushtra Spitama, or Ashu Zarathushtra is regarded as the spiritual founder of Zoroastrianism. He is ...

* Hannibal

References

External links

{{oral pathology Neonatology Types of teeth Congenital disorders Human mouth anatomy