What Is Macrodontia And Microdontia: Alteration of Tooth Size

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There are a lot of people who suffer from altered tooth size, these can be larger or smaller than normal. We will tell you what is the macrodontia and the microdontia, its characteristics and how to treat each of these anomalies.

What is the normal size of the teeth?

To achieve a perfect smile all the components of your mouth must be in balance and harmony. This includes the shape of the lips, the length of the gums, the alignment and size of the teeth. The measures of the teeth vary, therefore, there is no normal size of the teeth, but a range. In fact there are many theories and results found by experts in the area regarding the dimensions of different types of teeth. If the teeth go out excessively of the minimum and maximum parameters of the established size this will alter the aesthetics of your mouth and may present alterations such as macrodontia or microdontia. If you have doubts, you should see the dentist to confirm the diagnosis.

What is macrodontia and microdontia

People have teeth of different sizes and shapes, since these, in general, are proportional to the size of the jaw. But some individuals may develop larger or smaller pieces than normal. For a specialist to diagnose that there is a true anomaly in the size of the teeth, there must be a disproportion between them and the maxilla. From that you can talk about a macrodontia or microdontia. The macrodontia and microdontia are of hereditary character. Usually, it is this factor that determines the size of the teeth and jaw. Both elements can be inherited independently. That is, a person can have a large jaw and small teeth or vice versa.

Learn about microdontia

It is said that a patient presents microdontia when the size of their teeth is considerably smaller than the rest of the elements that make up the mouth. The roots of the teeth are of normal size. But crowns turn out to be much smaller than usual. This is known as root dwarfism.


There are three types of microdontia, these are:

Partial: It is the most common type. It occurs when only one or some of the dental pieces are smaller than the rest. This anomaly is mainly noticed in the upper lateral incisors, then in the third molars and in the premolars. In general, in this type of microdontia, teeth can have alterations in their shape. Generalized: Generalized microdontia is very rare. It occurs when all dental pieces where a size less than normal. In these cases, hereditary factors, such as dwarfism are those that affect the dental structure. Relative: When the patient has a large jaw that makes the teeth look smaller, it is said to have relative microdontia.

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