Scientific papers

Home-Applied Dual-Light Photodynamic Therapy in the Treatment of Stable Chronic Periodontitis (HOPE-CP)—Three-Month Interim Results

Adjunctive use of Lumoral dual-light antibacterial aPDT in non-surgical periodontal treatment (NSPT) results in improved treatment outcomes at three months post-therapy.

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Repeated Daily Use of Dual-Light Antibacterial Photodynamic Therapy in Periodontal Disease—A Case Report

Good oral hygiene at home is the foundation for optimal treatment response and long-term periodontal disease control. Antibacterial photodynamic therapy (aPDT) provides a potent adjunctive treatment for plaque control. However, literature regarding repeated aPDT use has been so far sparse. A new case study presents very positive results and clinical outcome of daily applied dual-light aPDT-technology treatment in conjunction with mechanical cleaning of a 78-year-old male patient with severe periodontal disease (Stage IV and Grade B).

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Repeated Home-Applied Dual-Light Antibacterial Photodynamic Therapy Can Reduce Plaque Burden, Inflammation, and aMMP-8 in Peri-Implant Disease—A Pilot Study

This pilot study tested the benefit of a commercially available Lumoral^® device designed for regular periodontal dual-light aPDT treatment at home. Seven patients with peri-implant disease applied dual-light aPDT daily in addition to their normal dental hygiene for four weeks. The results suggest a benefit of regular application of dual-light aPDT in peri-implantitis. Frequently repeated application can be a promising approach to diminishing the microbial burden and to lowering the tissue destructive proteolytic and inflammatory load around dental implants.

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Dual-light photodynamic therapy administered daily provides a sustained antibacterial effect on biofilm and prevents Streptococcus mutans adaptation

Antibacterial photodynamic therapy (aPDT) and antibacterial blue light (aBL) are emerging treatment methods auxiliary to mechanical debridement for periodontitis. In this study, we tested Streptococcus mutans biofilm sensitivity to either aPDT, aBL or their combination dual-light aPDT (simultaneous aPDT and aBL) exposure. In conclusion, when aPDT is administered repeatedly to S. mutans biofilm, a single wavelength-based aBL or aPDT leads to a significant biofilm adaptation and increased S. mutans viability. The combined use of aBL light in synchrony with aPDT arrests the adaptation and provides significantly improved and sustained antibacterial efficacy.

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La Terapia Fotodinámica Domiciliaria Como Medio De Prevención Para El Control Del Biofilm

A patient case study -  a patient with staining from chromogenic bacteria, gingival inflammation and pain had Lumoral protocol at home for 45 consecutive days as an adjunctive method for home care, together with an extra soft toothbrush. 

The 3-month check-up showed restitutio ad integrum and healthy gingival tissues, the absence of bleeding at the time of treatment and the absence of bleeding at the end of the treatment. healthy gingival tissues, the absence of bleeding on periodontal probing, good biofilm control and an improvement in oral hygiene techniques.

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Indocyanine Green-Assisted and LED-Light-Activated Antibacterial Photodynamic Therapy Reduces Dental Plaque

Antimicrobial photodynamic therapy (aPDT) has been introduced as an adjunct method for dental hygiene.
Although antibacterial and antiplaque effects resulting from aPDT have already been demonstrated in the literature, effects on bacterial flora diversity or early gingivitis biomarkers have not previously been established.

Antimicrobial photodynamic therapy resulted in a significant reduction of plaque formation. An analysis of the 16S rRNA sequencing found a reduction in the Streptococcus, Acinetobacterial, Capnocytophagal, and Rothia bacteria species and a gain in Neisseria and Hemophilus bacteria on the aPDT-treated side. The gain in the latter group of bacteria superseded the relative loss of the former in the plaque, while alpha diversity remained stable.
A reduction of the total amount of MMP-8 in the GCF was seen on the treated side, suggesting inhibition of early gingivitis.

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Daily Administered Dual-Light Photodynamic Therapy Provides a Sustained Antibacterial Effect on Staphylococcus aureus

New means to reduce excessive antibiotic use are urgently needed. This study tested dual-light aPDT against Staphylococcus aureus biofilm with different relative ratios of light energy with indocyanine green.

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Dual-Light Photodynamic Therapy Effectively Eliminates Streptococcus Oralis Biofilms

During cancer treatment, oral mucositis due to radiotherapy or chemotherapy often leads to disruption of the oral mucosa, enabling microbes to invade bloodstream. Viridans streptococcal species are part of the healthy oral microbiota but can be frequently isolated from the blood of neutropenic patients. We have previously shown the antibacterial efficacy of dual-light, the combination of antibacterial blue light (aBL) and indocyanine green photodynamic therapy (aPDT). 

The dual-light had a significant antibacterial effect in all the tested combinations. Dual-light can be used as an effective disinfectant against S. oralis biofilm.

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