The term hypodontia especially refers to one to six missing teeth. The most prevalent cause of hypodontia is hereditary, which means that the trait is passed down from biological parents to their children. Bridges, dentures, dental implants, and orthodontics are among the treatments available.

When teeth fail to grow, a patient is said to have hypodontia (sometimes termed tooth agenesis). As a result, the patient fails to develop teeth. When a patient lacks up to five permanent teeth—apart from the third molars—this condition is known as hypodontia. The maxilla is more impacted in the dentition, and the maxillary lateral incisor is often involved in the condition. Hypodontia is typically inherited and can potentially be linked to hereditary conditions.

What Does Hypodontia Entail?

Hypodontia, commonly known as tooth agenesis, is a congenital disorder in which an individual lacks teeth. A kid may experience articulation problems, malocclusion, inadequate bone development, difficulties eating, and instability in the adjacent teeth, depending on which teeth are missing. A child’s self-esteem may suffer if a lost tooth or teeth affects their smile.

Missing primary teeth might sometimes indicate a lack of permanent teeth, however hypodontia is often associated with adult teeth. The third molars, or wisdom teeth, are the most often lost teeth. Though over 20% of individuals are missing one or two teeth, congenitally missing teeth (CMT) are more common in females than in males.

Types of Hypodontia

There are serval types of hypodontia, ranging from one tooth not developing to none at all:

  • Congenitally Missing Teeth (CMT): Primary teeth that are lacking from birth are known as congenitally missing teeth, which is the most common kind of hypodontia.
  • Tooth Agenesis: This term refers to the absence of one or more teeth. It refers to any situation in which teeth fail to develop properly.
  • Oligodontia: When six or more teeth are missing, not including third molars or wisdom teeth, this condition is described. It indicates a more serious kind of tooth loss.
  • Anodontia: The patient experiences no tooth development at all.

Understanding the Causes of Hypodontia

Hypodontia can be caused by various factors, including both genetic composition and external environmental variables.

  • Genetic Factors: The most common cause of hypodontia is the genetic makeup. If your parents or grandparents have missing teeth, it’s more likely that you will as well.
  • Medical Disorders: Certain medical disorders or syndromes, such as ectodermal dysplasia, can cause missing teeth.
  • Environmental Factors: Disruptions such as infections or medication exposure during fetal development could cause problems with tooth formation.
  • Trauma: Sometimes injuries can restrict tooth development or stop teeth from developing completely, especially in young children.
  • Dental Problems: Conditions such as tumours, cysts, or excessive usage of baby teeth hinder permanent teeth from developing properly.

What are the Signs and Symptoms of Hypodontia?

The most frequent hypodontia symptom is being born with one to six missing teeth. Except for your wisdom teeth, missing teeth can develop anywhere in the mouth. Hypodontia can damage both primary and permanent teeth. Individuals who suffer from hypodontia may also have teeth that are smaller than average or have a peg-like form. Along with existing teeth, they could also have voids and gaps. Hypodontia could potentially indicate the presence of other hereditary conditions. Some hypodontia sufferers can also experience ectodermal dysplasia symptoms.

  • Nail abnormalities are a possible symptom of ectodermal dysplasia.
  • The hair is getting thinner.
  • Poor hearing ability.
  • Eyesight problems.
  • The absence of sweat glands.

Hypodontia Treatment Options

The course of treatment for hypodontia is determined by the individual conditions and how the extra teeth impact oral health. Possible course of treatment options include:

Orthodontic Treatment: To fill the gap left by a lost tooth or to further open it up for its replacement with a dental implant or resin-bonded bridge, braces or clear aligners can be advised.

Monitoring and Observation: The individual who has this ailment does not necessarily need to take any action because it is not causing any problems other than cosmetic ones.

Seeing a skilled dentist or orthodontist is crucial because they can assess each patient’s scenario of hypodontia and suggest the best course of action according to their needs.


To summarise, hypodontia is a teeth disorder defined by the lack of one or more teeth. Its development may be influenced by environmental and genetic factors. Hypodontia can result in cosmetic issues. There are three types of treatment options: orthodontics, prosthetic tooth replacement, or monitoring. For a proper diagnosis and treatment of hypodontia, contact a dentist with experience is essential.