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What is Anodontia? (3 Effective Treatments)


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Written by

Q.F. Nayibe Cubillos Morales


Medically Reviewed by

Dr. Gustavo Assatourians D.D.S

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What is Anodontia?

Anodontia refers to the absence of all permanent or primary teeth. It is a rare condition in which the teeth never form and therefore never emerge in the mouth. It is not to be confused with tooth loss, in which teeth form but are extracted or lost due to accidents, tooth decay, or gum disease.


What are the Causes of Anodontia?

Anodontia is caused by a genetic mutation, that is, a change in the formation of a particular gene. In the vast majority of cases, this mutation is the same one that gives rise to a condition called ectodermal dysplasia, where abnormal development occurs in the skin, hair, nails, sweat glands, and total absence of teeth.


Ectodermal dysplasia is inherited when both parents carry the defective gene, even though they do not necessarily have the disorder.
In very rare cases, only anodontia may occur without the other symptoms of ectodermal dysplasia. It is believed this is due to a mutation in a yet unknown gene.


How and when is Anodontia Detected? 

A patient can be suspected of having anodontia in two cases:

 When a baby is over one year old and has not developed any teeth.

 When a child is in pre-adolescence and has not started dental replacement, that is, when no permanent teeth have yet erupted.

In either of these two situations, during a consultation with a dentist, a physical examination and x-rays will be performed to verify whether the teeth have formed or not.


Why is it Important to have Teeth?

Teeth are small, solid organs that have several functions:

1. ChewingThe teeth grind food before it is swallowed. This process is essential for good digestion, since for the stomach and intestines to function properly, they must receive well-chewed food.

woman is chewing gum

2. PhonationThe teeth help in the correct pronunciation of words, regulate the passage of air, and serve as a support for the tongue when articulating different phonemes.

3. AestheticsThe teeth are responsible for the aesthetics of the smile. These are very important for the lower third of the face. A beautiful and healthy smile engenders self-esteem and helps develop interpersonal relationships. By contrast, the total absence of teeth can give the appearance of an aged face.


How can Anodontia Affect People’s Health?

The total absence of teeth could cause:

 Digestive problems due to not being able to chew food properly.

 Disadvantages in speech.

 Self-esteem problems, when aesthetics are affected.


What is the Treatment for Anodontia? 

showing anatomy of dental implant

In cases where the teeth have not formed, the dentist can offer several alternatives:

 Dental implants

 Full dentures supported on dental implants

 Total dentures supported on the gums

If you would like to learn more about dental implants, you can explore this related article.


Is there Partial Anodontia?

In some cases, some teeth will form, while others do not. Although some people may refer to this as “partial anodontia”, the correct term is “dental agenesis”. It indicates a condition in which some teeth do not form. Thus, depending on the number of missing teeth, dentists will mention:

Hypodontia: When between 1 and 5 teeth are not formed.

 Oligodontia: When 6 or more teeth are not formed.

While anodontia is defined as the absence of all teeth, there are cases where a condition that causes too many teeth to grow in your mouth exists, and it’s called hyperdontia. If you’re interested, you can check out this article.



Anodontia is a rare condition caused by a genetic mutation. It is generally part of a disorder called ectodermal dysplasia and occurs with other symptoms caused by failure to develop hair, nails, and skin, among other things. Because the presence of teeth in the mouth is very important for chewing, speaking, and aesthetics, various alternatives allow patients to chew, speak, and smile with peace of mind.



1. Wiener, C. R. (Abr 1, 2019). Hypodontia, Oligodontia and Anodontia in West Virginia Appalachia. Journal of Dental Hygiene.
2. Anodontia: Causes, Symptoms & Treatment. (Sep 15, 2022). Cleveland Clinic.
3. Bhat, V., Bhat, V. S., Vadakkan, J., Bhat, S. S., Shetty, S., & Hegde, S. K. (Jul, 2021). Prosthodontic Management of Congenital Hypothyroidism with Anodontia: A Case Report. International Journal of Clinical Pediatric Dentistry, 14(4), 586. Disponible en:
4. What Is Anodontia? (Feb 11, 2022). Verywell Health.
5. Muñoz, J. V. A., Báez, T. D. M., & Lancón, R. D. V. (Jan 7, 2021). Prosthetic rehabilitation in a pediatric patient with ectodermal dysplasia.Latin American Journal of Pediatric Dentistry, 11(2).
6. Castle , MA , Drager , MD , Maudet , A , & Leiva , A (Oct 12, 2022). Aesthetic and functional rehabilitation of a girl with Hypohidrotic Ectodermal Dysplasia. Report of a case. InXXI Latin American Congress of Pediatric Dentistry (Vol. 12, No. Supplement).

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