What Causes Crowding Teeth?

 

Dental crowding occurs when there is insufficient space in the jaw for teeth to align properly. Crowded teeth cause overlapping, twisting, or misaligned teeth. This problem is common in both children and adults and can affect your oral health and appearance. Crowding can also affect a person’s bite, making chewing less efficient, uncomfortable, and even painful. Finding the causes of crowded teeth might help avoid the problem altogether.

 

Primary causes for crowding teeth:

 

Jaw Size

 

  1. Genetics will determine whether you inherit a small, medium, or large jaw from one or both of your parents.
  2. A small or narrow jaw will cause less space available for proper tooth alignment, causing your teeth to overlap or grow in the incorrect place.

Tooth Size

 

  1. Genetics can also determine if you will inherit teeth that are too large, increasing the likelihood of crowding.
  2. A mismatch between large teeth and a small jaw most likely will result in overlapping.

Arch Shape

 

  1. The shape of the dental arch (U‑shaped vs. V‑shaped) influences the space available for your teeth to grow in the proper placement.
  2. A narrow arch tends to reduce room for the teeth and causes twisted, overlapping, or improperly placed teeth.

Developmental Factors:

Problems with Jaw Growth

 

  1. If the jaw growth is uneven or underdeveloped during childhood, this can reduce space for permanent teeth.
  2. Allergies or enlarged tonsils can cause mouth-breathing, and this can affect natural jaw development.

Eruption Patterns

 

  1. If teeth erupt at the wrong time, this may cause collisions between teeth.
  2. Permanent teeth that appear early may push into spaces that are meant for other teeth, and this can cause crowding.

Oral habits as a child and premature or delayed loss of baby teeth

 

Thumb-sucking or the use of a pacifier for too long will cause the front teeth to move forward and narrow the upper jaw. A forward-pushing tongue will alter the teeth’s positioning over time.

 

Baby teeth create natural spaces for incoming permanent teeth. Losing them too early (from decay, injury, or extraction) can allow nearby teeth to move and close the space needed for adult teeth. On the other hand, when baby teeth stay too long, they can block or redirect erupting permanent teeth. This will cause permanent teeth to erupt at odd angles and cause overcrowding.

 

Age‑Related Changes

 

As people get older, the lower front teeth naturally become more crowded, even after they have had orthodontic treatment. With age, the dental arch tends to become slightly smaller. This causes gradual teeth shifting. At times, erupting wisdom teeth can contribute to pressure, pain, and crowding.

 

Reach out for support

 

Consulting a dentist at the first sign of overcrowding will be beneficial. Even as a child, an orthodontist could guide the child’s arch for proper tooth fitting. As an adult, your dentist will refer you to an orthodontist to address the crowding issue. If you have any questions or concerns, we are here to help. Don’t hesitate to get in touch with our office for an appointment.

 

 

Related Article: How do you Treat Teeth Crowding?