The Controversy Surrounding Laser Treatment for Periodontal Disease: Lack of Evidence and Potential Conflicts of Interest


In recent years, laser therapy, including Laser Assisted New Attachment Procedure (LANAP), has been marketed as an innovative and less invasive approach to treat periodontal disease. However, concerns have been raised regarding the lack of substantial scientific evidence supporting the efficacy of lasers in general, and LANAP in particular. Furthermore, some critics argue that financial associations between laser proponents and manufacturers may influence the promotion of these treatments. In this blog, we will delve into the controversy surrounding laser therapy for periodontal disease, shedding light on the limited evidence and potential conflicts of interest.

1. The Lack of Scientific Evidence

Despite the growing popularity of laser therapy, there is a scarcity of well-designed and controlled scientific studies supporting its effectiveness in treating periodontal disease. The available research is often limited in scope, with small sample sizes and short follow-up periods. Furthermore, many studies fail to demonstrate significant advantages of laser therapy over traditional periodontal treatments, such as scaling and root planing.

2. Limited Long-Term Data

Long-term data on the outcomes and stability of laser treatment for periodontal disease are particularly lacking. The success of any treatment modality for periodontal disease should be evaluated based on its ability to halt disease progression, promote tissue healing, and maintain periodontal health over an extended period. Without comprehensive and long-term studies, it becomes challenging to draw definitive conclusions regarding the effectiveness and durability of laser therapy.

3. Potential Conflicts of Interest

Critics of laser therapy highlight the potential conflicts of interest that may exist between laser proponents and the manufacturers of these devices. Financial associations, such as consulting fees, research funding, or ownership stakes, between clinicians or researchers and laser manufacturers, can raise concerns about biased promotion and marketing of laser treatments. It is crucial to critically evaluate the claims made by those with financial ties to laser manufacturers to ensure transparency and unbiased information.

4. Importance of Evidence-Based Dentistry

Evidence-based dentistry relies on robust scientific evidence to guide treatment decisions. It involves critically evaluating research studies, systematic reviews, and meta-analyses to determine the efficacy and safety of various treatment modalities. Currently, the body of evidence supporting laser therapy for periodontal disease falls short of meeting these standards. Therefore, practitioners and patients should prioritize treatments backed by strong scientific evidence and long-term clinical trials.

5. Consultation with a Periodontist

When seeking treatment for periodontal disease, it is essential to consult with a qualified periodontist who can provide an accurate diagnosis and recommend evidence-based treatment options. A periodontist can assess the severity of your condition, consider your overall oral health, and suggest the most appropriate and scientifically supported treatment plan tailored to your specific needs.


The use of lasers, including LANAP, in the treatment of periodontal disease remains a controversial topic due to the lack of robust scientific evidence supporting their effectiveness. Critics argue that financial associations between laser proponents and manufacturers may contribute to biased promotion and marketing of laser treatments. It is crucial for patients and practitioners to prioritize evidence-based dentistry and make treatment decisions based on well-established scientific research and long-term clinical trials. Consulting with a qualified periodontist is crucial for accurate diagnosis and the recommendation of appropriate and scientifically supported treatment options.

Disclaimer: This blog is for informational purposes only and should not be considered as dental or medical advice. Please consult with a qualified dental professional for personalized information and recommendations regarding your specific dental needs.

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