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Hyperdontia - Causes, Types, Symptoms, Diagnosis, and Treatment

Published on Dec 01, 2020 and last reviewed on Apr 01, 2022   -  5 min read


Hyperdontia is a condition where people have more number of teeth in addition to the regular 32 teeth. Read the article to know about its causes, types, symptoms, diagnosis, and treatment.

Hyperdontia - Causes, Types, Symptoms, Diagnosis, and Treatment

What Is Hyperdontia?

Hyperdontia is a condition of too many teeth or the growth of extra teeth in the mouth additional to the regular number of teeth. They can be seen in various syndromes. There will be multiple supernumerary teeth, which are usually impacted. It will not be painful but can cause some complications. It is more commonly seen in permanent dentition than in deciduous dentition (milk teeth).

What Are the Causes of Hyperdontia?

Hyperdontia can be caused due to hereditary factors along with environmental factors. Single tooth hyperdontia are more common, and multiple teeth hyperdontia is less common. Extra teeth will not erupt sometimes but may delay the eruption of the permanent teeth. It can be due to disorders like:

What Are the Types of Hyperdontia?

Hyperdontia can be classified according to the shape and position of the teeth. According to the shape, they can be:

According to the position of the teeth, they can be:

What Are the Symptoms of Hyperdontia?

It can be either single or multiple, and it can occur on one or both sides of the jaws. There can be only one excess tooth, which can also be impacted in the jaw. Even if the extra teeth are not fully grown in the jaw, it can be seen with CT or x-rays. The symptoms include some pain or swelling according to the pattern of growth, and the people may experience some misaligned teeth, crowded teeth, or toothache. The additional teeth grow far from the dental arch or within the maxillary sinus, and they may also migrate from one place to another after the eruption. Supernumerary teeth may lead to the formation of any tumors or cyst. The extra molar teeth are rare, and it can be most commonly seen in the front tooth region (premaxilla).

What Are the Possible Complications of Hyperdontia?

Hyperdontia may cause a delayed eruption of the adjacent teeth or may cause overcrowding of teeth, which needs orthodontic treatment for correction. If it is retained or left untreated, it may lead to the development of tumors or cysts. The other complications of hyperdontia are:

What Are the Factors That Increase the Risk of Hyperdontia?

The common risk factors are genetic disorders, and even if there are no genetic disorders present, hyperdontia may be seen in many family members.

It is more common in permanent dentition than in deciduous dentition and twice more common in males than females. 98% of hyperdontia is commonly seen in the upper jaw than the lower jaw. Anterior teeth are more commonly affected than the posterior teeth or the molar teeth region.

How Is Hyperdontia Diagnosed?

The dentist diagnoses it by clinically examining the teeth. CT or x-ray can also be used to diagnose hyperdontia. Intraoral x-ray and a panoramic radiograph are the techniques of x-rays. X-rays should be taken from two different angles. These are all 2D x-rays and do not show the 3D view of the image.

How Is Hyperdontia Treated?

Usually, hyperdontia does not cause any symptoms, and the patient may also be unaware of having those extra teeth. It could be diagnosed only by the dentist when he asks to take an x-ray or CT. The teeth are often extracted due to aesthetic reasons, orthodontic reasons, the eruption of other teeth, and any pathology. The treatment depends on whether the hyperdontia cause any complications like:

When to Visit a Dentist for Hyperdontia?

The right time to see the dentist is when you have any:


The maxilla and the anterior segment are most commonly affected. The reason for orthodontic treatment is also the presence of supernumerary teeth. A regular check-up with the dentist can prevent any complications due to hyperdontia. For more information, consult a doctor online.


Frequently Asked Questions


Is Hyperdontia a Severe Condition?

Hyperdontia is characterized by the growth of extra teeth than the usual number of teeth. It is not a severe condition and is not painful; however, it pressurizes the jaws and gums of the individual and may cause swelling.


Can Hyperdontia Be Cured?

Extra or supernumerary teeth can be removed if it causes pain, discomfort while eating or chewing or produces complications to the individual. Nevertheless, it does not cause any problems; extraction of extra teeth may not be required.


Is Hyperdontia a Deadly Condition?

Hyperdontia by itself is not a life-threatening condition. However, cysts and tumors developing from hyperdontia can pose risks. Hyperdontia is associated with problems in biting, alignment of the teeth and jaws, periodontal diseases, dental caries, and dental infection. In severe cases, it exhibits facial deformities and speech difficulties.


How Can We Fix Hyperdontia?

Extraction of the supernumerary teeth is the initial treatment for hyperdontia, which a dental x-ray should precede to determine if the teeth to be extracted are erupted, partially erupted, or impacted. Depending on that, standard forceps extraction or surgical disimpaction is decided. Following extraction, orthodontic treatment might be required.


Do Hyperdontia Run In Families?

Along with the influence of environmental factors, genetic factors are also associated with the incidence of hyperdontia. It is also correlated to specific genetic syndromes like Gardner's syndrome, cleft palate, Ehler-Danlos syndrome, etc.


Can Hyperdontia Be Fixed With the Help of Braces?

In hyperdontia, the incidence of crooked teeth is high due to the extra teeth which push their adjacent regular teeth and cause malalignment. Therefore, orthodontic treatment with braces is essential in addition to the extraction of supernumerary teeth.


Is Hyperdontia Normal?

Hyperdontia is prevalent in about one to four percent of the total population and is particularly more common in males as compared to females. Of which, a single tooth hyperdontia is more common than multiple teeth hyperdontia, which is a rare condition.


Can We Remove Hyperdontia Teeth?

The supernumerary teeth in hyperdontia can be removed if it causes any problems. Else, it does not require extraction. Also, if the individual has an underlying genetic condition that might increase the chance of developing supernumerary teeth, then extraction is highly recommended.


How Is Hyperdontia in Children Manifested?

Hyperdontia in children is manifested clearly around the period when the milk teeth exfoliate, and the permanent teeth erupt into the oral cavity. They erupt anywhere in the oral cavity, like in between, behind, in front of the permanent teeth, or may sometimes be seen along the roof of the mouth.


Do Hyperdontia Cause Harm?

Crooked or misaligned teeth, periodontal diseases, gum and tooth infection, tooth decay, discomfort while chewing, etc., may be present with hyperdontia. In severe hyperdontia, cysts, tumors, facial deformities, and speech difficulties may be associated.


What Syndrome Is Associated With Hyperdontia?

Gardner's syndrome, cleidocranial dysplasia, cleft lip and cleft palate, Ehler-Danlos syndrome, and other genetic disorders may be linked with hyperdontia.


Is Extra Teeth Removal in Hyperdontia Painful?

Extracting the supernumerary teeth can be painful, but it is eliminated by administering local anesthesia during the procedure. After removal, post-extraction pain can be managed by over-the-counter or prescription pain-relieving medications suggested by the dentist.

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Last reviewed at:
01 Apr 2022  -  5 min read




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