Diagnostic testing in dentistry is transforming patient care and empowerment
For nearly a century, the medical community has relied on diagnostic testing, from blood chemistry to bacteriology, to improve diagnosis and patient outcomes. Dentistry, traditionally slower to adopt these tools, is now entering an exciting era where diagnostic testing is poised to transform how we understand, prevent, and manage oral diseases.
With the completion of the Human Genome Project in 2003, healthcare entered a new chapter. The project opened the door to personalised medicine, where treatment is guided by genetics, environment, and lifestyle factors. Over the past decade, this movement has evolved into direct-to-consumer testing, giving patients more control over their health decisions than ever before.
The rise of patient-driven diagnostics
By 2019, more than 26 million consumers had taken at-home DNA tests, and the market for direct-to-consumer blood tests continues to grow rapidly. According to Zion Market Research, the sector is expected to rise by 60% between 2021 and 2028, with saliva-based diagnostics predicted to grow the fastest due to their convenience and non-invasive nature.
This trend signals a major shift: patients want empowerment, autonomy, and insight into their health beyond the traditional clinic visit. In many cases, people fear they are not receiving adequate care or want to better understand their health risks.
Opportunities and challenges of self-testing
While self-testing can provide valuable information and empower patients, concerns exist about its validity, reliability, and interpretation. Many private direct-to-consumer tests are not processed in UKAS-accredited labs, lack internationally agreed threshold values, and can yield conflicting results. Without a supervising clinician, patients may misinterpret results or struggle to take appropriate action.
This challenge highlights the need for a balanced approach where patients feel empowered but remain under professional guidance. Clinicians who embrace this trend can educate patients, improve health literacy, and guide them toward trustworthy solutions, instead of leaving them to rely on misleading online ads.
What dentistry can learn from medicine
Dentistry often follows medical trends, from artificial intelligence to diagnostic imaging. Now, diagnostic testing offers a powerful way to make dentistry more patient-centred. Tools such as saliva tests, microbiology slides, and even chairside blood tests can help patients understand their risk for periodontal disease, decay, or other conditions, even if they don’t immediately change the treatment plan.
For example, continuous glucose monitoring (CGM) is widely used in medicine to educate diabetic patients about how their diet affects blood sugar levels. A similar model could be applied to dentistry, helping patients understand how daily habits impact oral health. This educational approach can motivate patients to take charge of their oral care and improve long-term outcomes.
The promise of salivary diagnostics
Saliva is emerging as a key tool in the future of oral diagnostics. Research suggests saliva can reveal biomarkers for conditions such as Alzheimer’s disease, cardiovascular issues, and hormonal imbalances. In dentistry, saliva tests could help assess disease activity, predict risk levels, and monitor treatment response, all while offering a painless, non-invasive experience.
The 20th European Workshop on Periodontology emphasized the potential of combining salivary diagnostics with artificial intelligence to assess microbiology, genetics, medical history, and age, enabling remote prediction of disease risk.
The path forward
The future of diagnostic testing in dentistry lies in collaboration between private companies, researchers, and clinicians. Tests must be validated, reliable, and clinically meaningful to benefit both patients and dental professionals.
As demand for personalised healthcare continues to grow, dentistry has a unique opportunity to lead the way in patient empowerment, helping people understand their oral health, reduce disease risk, and take proactive steps toward a healthier future.
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