A pacifier should be used in a proper manner to prevent potential oral health problems for your child. Consult with a child friendly dentist for advice on using a pacifier.
Key takeaways:

• Pacifiers used over a long period of time can affect the roof of the mouth, with the top and bottom rows of the teeth not meeting.
• Similar to a child who sucks their thumb, prolonged use of a pacifier can lead to misaligned teeth.
• Try to avoid dipping the pacifier in foods like honey to avoid increasing the risk of tooth decay.

“Unfortunately, children who experience teeth or jaw alignment issues from pacifier misuse will require orthodontic intervention in the future.”
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https://yourdentalhealthresource.com/how-does-a-pacifier-impact-your-childs-oral-health