Better Health Channel
betterhealth.vic.gov.au Department of Health
betterhealth.vic.gov.au Department of Health
  • Tooth decay is a common diet-related disease.
  • It is caused by the bacteria in your mouth turning sugar into energy and producing acid that damages the teeth.
  • Tooth decay can start as a white or dark spot on your tooth and develop into a hole or cavity.
  • The saliva in your mouth helps protect against tooth decay and can repair tooth decay in its early stages.
  • If you have less saliva or a dry mouth (because of dehydration, some medical conditions, or using certain medications or drugs) your risk of developing tooth decay is higher.
  • You can prevent tooth decay by eating a healthy diet, avoiding sugar sweetened drinks, drinking plenty of tap water, brushing your teeth twice a day using a fluoride toothpaste, and flossing once a day.
  • Regular professional care can help to identify and prevent decay and may avoid the need for a filling.

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Content on this website is provided for information purposes only. Information about a therapy, service, product or treatment does not in any way endorse or support such therapy, service, product or treatment and is not intended to replace advice from your doctor or other registered health professional. The information and materials contained on this website are not intended to constitute a comprehensive guide concerning all aspects of the therapy, product or treatment described on the website. All users are urged to always seek advice from a registered health care professional for diagnosis and answers to their medical questions and to ascertain whether the particular therapy, service, product or treatment described on the website is suitable in their circumstances. The State of Victoria and the Department of Health shall not bear any liability for reliance by any user on the materials contained on this website.

Reviewed on: 16-08-2023