• Most children stop sucking habits between the ages of two and four.
  • Dummy sucking is not a problem for oral health in the very early years, but can cause changes to the teeth and jaws if it continues.
  • Never put anything sweet on a dummy.

Sucking a dummy can help relax and settle babies but many parents are concerned about the effect of a dummy on their child’s teeth and mouth.

For many children, sucking a dummy, thumb or finger can cause changes to the teeth and jaws. The younger the age at which a child stops sucking a dummy, the more likely their teeth and jaws will correct the growth problems naturally. If a child is still sucking a dummy when their adult teeth come through, there is a much higher risk of permanent changes to the growth of the teeth and jaws.

Never put anything sweet on a dummy as this can cause severe tooth decay very quickly.

When making the decision to use a dummy, it is best to make sure breastfeeding is fully established first. 

Problems caused by dummies

Long-term dummy use may lead to:

  • incorrect positioning of teeth – upper teeth may be pushed further forward than is ideal, or the top and bottom front teeth may not touch. This can change the way the teeth meet when the child bites and can also affect speech development, especially s and z sounds
  • mouth breathing – your child may tend to breathe through their mouth rather than their nose.
  • speech and language problems – having a dummy in the mouth may delay children using sounds to communicate, and prevent them from exploring the full range of tongue movements required to make all the speech sounds
  • tooth decay (especially the front teeth) – if the dummy is dipped in sugary substances such as honey or jam.

Encourage your child to stop dummy use

Give your child the chance to stop their dummy habit when they are ready. Most children stop sucking habits between the ages of two and four, but you can start the process from around one year of age. If left too long the child becomes more attached and it may be harder to stop. Dummy use during play can also stop babbling which is important for speech development.

Avoid trying to stop dummy use suddenly, as it can lead to other oral habits such as thumb or finger sucking. 

You might start by limiting the use of the dummy, for example only using it at sleep times or at night time. Give plenty of encouragement and persist gently but firmly. It may take several attempts before the habit is completely broken. Try to be patient. The first few days without a dummy are likely to be the most difficult. 

If the habit continues into primary school years, seek advice from your oral health professional.

Dummy sucking versus thumb or finger sucking

Studies of children who suck their thumb or finger shows they have more difficulty breaking their habit than children who suck a dummy. One advantage of the dummy over finger sucking is that the dummy can be gently taken away when the child goes to sleep. This helps form the habit of sleeping without dummy sucking.

Keeping dummies safe

  • Never dip dummies in sweet things such as honey, jams or syrups; this can cause severe tooth decay very quickly.
  • Follow good hygiene procedures. Dummies may cause infection if they are shared with other children or picked up from the floor.
  • Check that dummies are in good condition and meet Australian safety approval ratings.

Where to get help


More information

Babies and toddlers (0-3)

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Babies and toddlers basics

Newborn babies

Feeding your baby

Growth and development

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This page has been produced in consultation with and approved by: Dental Health Services Victoria

Last updated: July 2019

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