For most infants, thumb sucking and pacifier use are natural habits that provide comfort, relaxation, and a sense of security. According to the American Academy of Pediatric Dentistry (AAPD), most children stop using pacifiers by age four. Thumb sucking can persist longer and may require intervention if it continues after the age of five, especially once permanent teeth begin to emerge.

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How Thumb Sucking and Pacifier Use Can Affect Teeth

Prolonged thumb sucking or pacifier use can lead to dental complications over time. Key risks include:

  • Jaw misalignment: Pacifiers and thumbs can guide developing jaws out of proper alignment.
  • Tooth decay: Dipping pacifiers in sugary substances can lead to enamel erosion and cavities.
  • Roof narrowing: Repeated sucking can mold the roof of the mouth, affecting tooth development.
  • Slanting teeth: Persistent sucking can cause teeth to slant or protrude, potentially increasing the need for orthodontic treatment.
  • Mouth sores: Aggressive sucking may lead to ulcers or sores in the mouth.

Choosing a Safe Pacifier

  • Select a one-piece pacifier to reduce choking risk.
  • Choose an “orthodontically correct” model.
  • Avoid dipping the pacifier in honey or sugary liquids.
  • Rinse pacifiers with water instead of using your mouth to clean them.

Helping Your Child Stop Thumb or Pacifier Sucking

Most children give up these habits naturally as they grow. If sucking persists past age five, gentle interventions can help:

  • Ask your pediatric dentist to discuss the habit with your child, often more effective than parental reminders.
  • Use an ADA-recommended dental appliance designed to discourage sucking.
  • Implement a reward system to positively reinforce non-sucking behavior.
  • Wrap thumbs in soft cloths or mittens at night.

If these strategies do not work, your pediatric dentist can provide additional guidance. Patience, encouragement, and consistency are key to breaking these habits safely.