Antimicrobial photodynamic therapy as an alternative to systemic antibiotics: results from a double-blind, randomized, placebo-controlled, clinical study on type 2 diabetics
(Journal of Clinical Periodontology; doi: 10.1111/jcpe.12498)
Umberto D Ramos, Lauro G Ayub, Danilo M Reino, Márcio F M Grisi, Mário Taba Jr, Sérgio L S Souza, Daniela B Palioto, Arthur B Novaes Jr
Photodynamic treatment uses a light-activated substance to target microbes. Researchers compared it with an antibiotic as an addition to professional gum cleaning in people with type 2 diabetes.
Thirty participants received cleaning below the gumline, followed by either repeated light-based treatment or doxycycline. Researchers measured gum health and HbA1c over three months. There was no group receiving cleaning alone.
Both groups improved in gum measurements and HbA1c, without a clear overall difference between them. Some moderately deep pockets around single-rooted teeth responded better to the light-based approach, but the advantage was not consistent across all sites. Other laboratory findings were mixed.
The study does not prove that the treatments are equivalent, or that either adds a benefit beyond cleaning alone. Fifteen people in each group and a short follow-up are not enough to establish a dependable treatment choice for everyone. A result for a particular pocket type should not be turned into a claim that light treatment is generally superior. If an additional procedure is proposed, ask which outcome it is expected to improve and how strong the evidence is for your situation.
The most useful comparison is the difference between the treatment groups, rather than improvement within just one group. Results also depend on who took part, the comparison care and how long people were followed. A statistically uncertain difference does not prove two approaches are identical. Equally, a clear difference in a measurement may not show a lasting benefit for tooth retention or general health. These findings need to be considered alongside other trials and your individual clinical needs when discussing treatment choices.
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Periodontitis is the 6th most prevalent condition globally
Periodontitis and diabetes are bidirectionally linked
Diabetic complications are increased if you have both diseases
Successful periodontal treatment can improve blood glucose control
Periodontitis is the 6th most prevalent condition globally
Periodontitis and diabetes are bidirectionally linked
Diabetic complications are increased if you have both diseases
Successful periodontal treatment can improve blood glucose control
