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From Your Home to the Lab: Understanding At-Home Saliva Testing

A simple look at how saliva is collected, analyzed, and transformed into quantitative molecular information about selected oral microorganisms.

At-home testing is becoming increasingly familiar across many areas of healthcare and wellness.

For oral microbial testing, saliva offers an especially convenient sample because collection can be non-invasive and can be performed without a traditional blood draw.

How Does At-Home Saliva Testing Work?

From Your Home to the Lab: How At-Home Saliva Testing Works

A typical at-home saliva testing workflow is designed to make sample collection simple and convenient while maintaining appropriate handling from collection through laboratory analysis.

  1. Order Your Testing Kit

    Patients can order a testing kit online or obtain one through a participating dental professional. The collection kit is then shipped directly to the patient.

  2. Collect Your Saliva Sample

    Following the provided instructions, the patient collects a saliva sample using the supplied collection device.

  3. Preserve and Prepare the Sample

    The collected sample is transferred into the appropriate collection and preservation tube and prepared according to the provided shipping instructions.

  4. Return the Sample to the Laboratory

    The prepared sample is returned to the laboratory using the provided prepaid shipping materials, making the process convenient from home.

  5. Laboratory Molecular Testing

    Once received, the laboratory processes the sample using the specified molecular testing method. For targeted microbial testing, quantitative PCR (qPCR) can be used to detect and quantify selected bacterial targets.

  6. Receive Your Digital Report

    Once testing is complete, the results are provided electronically. Patients can share their report with their dentist or other qualified dental professional, who can consider the microbial findings alongside the patient's clinical examination, periodontal measurements, and overall oral health information.

From collection to results, the goal is simple: make saliva-based molecular testing convenient while providing quantitative information that can be considered as part of a broader oral health assessment.

Why Is Saliva Useful?

Saliva collection is relatively simple, non-invasive, and convenient. For oral microbial testing, saliva can contain DNA from microorganisms present in the oral environment, making it a practical sample for certain molecular applications. However, the sample represents a particular biological moment and collection method. Proper instructions and sample handling remain important.

What Should Patients Do Before Collection?

Patients should always follow the specific instructions provided with their testing kit.

Instructions may address factors such as:

  • Eating and drinking
  • Brushing teeth
  • Using mouthwash
  • Smoking or vaping
  • Timing of collection
  • Proper sample volume
  • Packaging and shipping

The exact requirements depend on the specific test and collection protocol.

What Does the Test Tell You?

A microbial test provides information about the targets included in that particular assay. For example, a targeted molecular panel may identify and quantify selected (key) periodontal microorganisms. It does not necessarily provide a complete picture of every microorganism in the mouth.

What Should You Do with the Results?

For a clinical test, patients should discuss results with an appropriately qualified dental professional.

A laboratory report is one source of information. It should be considered together with clinical findings and other relevant information.

The Goal of At-Home Testing

At-home testing can make sample collection more convenient and potentially make certain forms of testing easier to incorporate into people's routines. At Unique Biosciences, our goal is to combine convenient saliva collection with quantitative molecular testing and clear reporting so that microbial information can be considered within appropriate dental care.

References

  1. Javaid MA, Ahmed AS, Durand R, Tran SD. Saliva as a diagnostic tool for oral and systemic diseases. Journal of Oral Biology and Craniofacial Research. 2016;6(1):66–75. doi:10.1016/j.jobcr.2015.08.006. PubMed.
  2. Zhang Y, Sun J, Lin CC, et al. The emerging landscape of salivary diagnostics. Periodontology 2000. 2016;70(1):38–52. doi:10.1111/prd.12099.
  3. Wong DT. Salivaomics. Journal of the American Dental Association. 2012;143(10 Suppl):19S–24S. doi:10.14219/jada.archive.2012.0339.
  4. d’Amone L, Matzeu G, Omenetto FG. Stabilization of salivary biomarkers. ACS Biomaterials Science & Engineering. 2021;7(12):5451–5473. doi:10.1021/acsbiomaterials.1c01138. ACS Publications.
  5. Tasoulas J, Patsouris E, Giaginis C, Theocharis S. Salivaomics for oral diseases biomarkers detection. Expert Review of Molecular Diagnostics. 2016;16(3):285–295. doi:10.1586/14737159.2016.1133296.
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