Reviewed by Dr. Amir Davoody, board-certified orthodontist (ABO Diplomate).

Many parents wonder how pacifiers and thumb sucking affect a child’s teeth. It is a fair worry: while sucking is one of an infant’s natural reflexes, prolonged sucking can put real force on the teeth and jaws. Here Dr. Amir Davoody at Davoody & Hablinski Orthodontics explains what to watch for and when to seek early orthodontic care.

What problems can it cause?

If your child sucks a thumb, finger, pacifier, or lips for a long time, the teeth and jaw growth can be affected, and these changes can begin as early as 18 months. The most common issues include:

  • Protruding front teeth, which sit farther forward than normal
  • An open bite, where the upper and lower front teeth do not meet
  • A crossbite, where the upper teeth bite inside the lower teeth

If you notice prolonged thumb sucking or pacifier use, it is a good time to consult an orthodontist.

How an orthodontist can help

An orthodontist can identify any issues caused by an oral habit and offer early treatment options to help break the habit and correct what it caused. Orthodontists are specifically trained to guide jaws into better positions, and an early visit offers several benefits: correcting harmful oral habits, guiding jaw growth, lowering the risk of trauma to protruded front teeth, and guiding permanent teeth into better positions.

Frequently asked questions

At what age does thumb sucking become a problem? Lasting effects are more likely when the habit continues past about age 3 to 4, as permanent teeth approach.

Can the damage be corrected? Yes. Early treatment can address bite changes and help guide development, especially when caught young.

When should I see an orthodontist? If the habit is prolonged or you notice protruding front teeth, an open bite, or a crossbite, schedule an evaluation.

Help your child’s smile develop well

If you are concerned about thumb sucking or pacifier use, we can help. Contact our office to schedule an evaluation with Dr. Amir Davoody.

Davoody & Hablinski Orthodontics
5311 Kirby Dr Ste 209, Houston, TX 77005
Phone: (713) 521-2727