What is periodontal disease?

Periodontal disease is a painful condition where the tissues around the teeth – including the gums, ligaments, and bone – become inflamed and damaged.

It often starts with food and bacteria getting trapped in the spaces between the teeth, known as diastema, leading to infection. This condition is particularly common in older horses.

Signs to watch for include:

  • Foul-smelling breath.
  • Red or swollen gums.
  • Food packing between teeth.
  • Dropping feed (quidding) or slow chewing.a
  • Weight loss.
  • Behavioural changes, such as head-shaking, or resistance to accepting a bit or bridle.

If left untreated, periodontal disease can cause loosening or even loss of teeth.

Prevention is key:

  • A natural, fibre-rich diet promotes healthy chewing and saliva flow.
  • Regular dental exams help detect food traps or early gum changes.
  • Prompt treatment (debridement, smoothing, or removing damaged teeth) stops progression and keeps horses comfortable.

Healthy gums are just as important as healthy teeth – early care makes all the difference.

The Happy Horse Foundation is a registered charity with the Australian Charities and Not-for-profit Commission

The Happy Horse Foundation is a registered charity with the Australian Charities and Not-for-profit Commission

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