Oral DNA Saliva Test

Here at Leeming Dental, we are the only clinic in WA that can test patients for the presence of 11 different types of pathogenic oral bacteria that cause periodontal disease – all via a simple saliva test!

How is an Oral DNA test beneficial to my health?

An Oral DNA test is invaluable diagnostic tool to help identify specific pathogenic oral bacteria present in your body. Pathogenic oral bacteria are the nasty kind. Once established in your oral cavity, they put you at a much greater risk for periodontal disease and chronic systemic inflammation (SI).

Additionally, these oral bacteria can migrate to and affect other parts of your body. Clinical research has shown that a number of pathogenic oral bacteria are linked to diabetes, heart disease, Alzheimer’s disease, cancer, rheumatoid arthritis, poor nutrition, pregnancy complications & strokes.

If an Oral DNA test is incorporated into a dental treatment plan, our dentists can identify and classify your specific risk factors for oral and systemic diseases. This ensures a more comprehensive oral health assessment and a more effective personalised treatment therapy.

How do I take the test?

All you need to do is a simple 30 second swish & gargle of an oral rinse which you spit out into a collection tube. Your sample is sent for analysis at OralDNA Labs®, the world leader in oral DNA salivary diagnostics.


Early warning for disease causing bacteria

The Oral DNA test identifies the following oral bacteria:

  • (Aa) Aggregatibacter actinomycetemcomitans
  • (Cr) Campylobacter rectus
  • (Cs) Capnocytophaga species (gingavalis, ochracea, sputigena)
  • (Ec) Eikenella corrodens
  • (En) Eubacterium nodatum
  • (Fn) Fusobacterium nucleatum/periodonticum
  • (Pg) Porphyromonas gingivalis
  • (Pi) Prevotella intermedia
  • (Pm) Peptostreptococcus (Micromonas) micros
  • (Tf) Tannerella forsythia
  • (Td) Treponema denticola

Image: (Pg) Porphyromonas gingivalis, (Td) Treponema denticola, and (Tf) Tannerella forsythia.

Test outcomes

The Oral DNA test lab report lists the harmful bacteria detected in your saliva, and indicates what course of antibiotic treatment you should take. This enables us to develop a much more powerful and effective treatment plan specifically for your mouth. We administer the appropriate antibiotic either below the gum line or via medication.

It’s that easy.

After your anti-biotic treatment, your dentist here will monitor your progress, be able to provide more effective follow-up treatment, and better manage your periodontal condition.

Take your oral DNA test at Leeming Dental

For more information or to schedule a consultation, call our friendly reception at Leeming Dental on 08 9310 3367.


Read more about the potential oral and general health consequences of harmful oral bacteria in our blog article:

Can oral bacteria cause Alzheimer’s disease? (3 min read)

Gum disease linked to faster cognitive decline in Alzheimer’s patients”(3 min read)

Official Oral DNA Labs patient brochure