The Effects of Ultraviolet Light-Emitting Diodes with Different Wavelengths on Periodontopathic Bacteria<i>In Vitro</i>

Aung, Nay; Aoki, Akira; Takeuchi, Yasuo; Hiratsuka, Koichi; Katagiri, Seiji; Kong, Sophannary; Addin, Ammar Shujaa; Meinzer, Walter; Sumi, Yasunori; Izumi, Yuichi

doi:10.1089/photob.2018.4514

Cited by 11 publications

(11 citation statements)

References 36 publications

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“…On the other hand, partial growth suppression of bacterial cells was noted when a UV wavelength of 310 nm was administered. On the contrary, colony-forming units results were insignificant between UV wavelengths of 365 nm, 448 nm and control [ 34 ].…”

Section: Resultsmentioning

confidence: 99%

“…Regarding the effect of UV on the growth and gene expression of different bacteria species, Aung et al found that ultraviolet light-emitting diodes (LED-UV) could produce nonthermal devitalization of bacteria on CPT denture surfaces, and may not produce thermal damage to the surrounding periodontal tissues which could be considered as one of the advantages of using these UV diodes for bactericidal purposes [ 34 ]. This comes in contrast to the thermal devitalization caused by using relatively high power lasers, such as CO2, Nd: YAG, Diode, and Er: YAG lasers, resulting in thermal damage to host tissues and cells.…”

Section: Discussionmentioning

confidence: 99%

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Does Ultraviolet Radiation Exhibit Antimicrobial Effect against Oral Pathogens Attached on Various Dental Implant Surfaces? A Systematic Review

Abdullatif

Al‐Askar

2022

Dentistry Journal

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Background: Dental implant therapy is currently identified as the most effective treatment for edentulous patient. However, peri-implant inflammations were found to be one of the most common complications that leads to the loss and failure of dental implantation. Ultraviolet (UV) radiation has been proposed to enhance bone integration and reduce bacterial attachment. In this study, we aimed to systematically review the current evidence regarding the antimicrobial effect of UV on different dental implant surfaces. Methods: Five databases including PubMed, Scopus, Web of science, VHL, and Cochran Library were searched to retrieve relevant articles. All original reports that examined the effect of the application of UV radiation on dental implants were included in our study. Results: A total of 16 in vitro studies were included in this systematic review. Polymethyl methacrylate UV radiation has induced a significant decrease in bacterial survival in PMMA materials, with an increased effect by modification with 2.5% and 5% TiO2 nanotubes. UV-C showed a superior effect to UV-A in reducing bacterial attachment and accumulation. UV wavelength of 265 and 285 nm showed powerful bactericidal effects. UV of 365 nm for 24 h had the highest inhibition of bacterial growth in ZnO coated magnesium alloys. In UV-irradiated commercially pure titanium surfaces treated with plasma electrolytic oxidation, silver ion application, heat or alkali had shown significant higher bactericidal effect vs non-irradiated treated surfaces than the treatment with any of them alone. UVC and gamma-ray irradiation increased the hydrophilicity of zirconia surface, compared to the dry heat. Conclusion: UV radiation on Ti surfaces exhibited significant antibacterial effects demonstrated through the reduction in bacterial attachment and biofilm formation with suppression of bacterial cells growth. Combination of UV and treated surfaces with alkali, plasma electrolytic oxidation, silver ion application or heat enhance the overall photocatalytic antimicrobial effect.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Does Ultraviolet Radiation Exhibit Antimicrobial Effect against Oral Pathogens Attached on Various Dental Implant Surfaces? A Systematic Review

Abdullatif

Al‐Askar

2022

Dentistry Journal

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“…UVB irradiation at 310 nm can eradicate Porphyromonas gingivalis without introducing a damage to human oral epithelial cells 55) and gingival fibroblast. 56) UVB irradiation at 296 nm shows a more efficient inactivation on P. aeruginosa than the antibiotics (colistin and tobramycin) and conventional UVC irradiation. 57) These findings suggest that UVB irradiation based aPDI can be effective for oral infection treatment.…”

Section: Uv Based Antimicrobial Photodynamic Inactivation (Apdi)mentioning

confidence: 94%

Application of ultraviolet light sources for in vivo disinfection

Petersen

2021

Jpn. J. Appl. Phys.

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Development of antibiotic resistance is a major challenge for antibiotics as an effective treatment approach of infectious diseases and pathogenic microbes with resistance to antibiotics will become difficult to be treated. Therefore, a new therapy method, which is safe and can inactivate pathogenic microbes effectively without developing a resistance, is highly needed. Ultraviolet irradiation is well known for its ability of effective microbial inactivation and it is widely used in sterilization of inanimate objects based on conventional ultraviolet light sources. Meanwhile, applying ultraviolet irradiation in human disinfection application is an emerging and rapidly progressing field. This review focuses on recent studies in ultraviolet based disinfection methods including both animal and human studies. We will introduce different microbial inactivation mechanisms, which are associated with the ultraviolet irradiation wavelength. Relevant research work will be summarized with a focus on their microbial inactivation effect and safety issues.

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“…2 Herein, I discuss the current status and prospects of UV irradiation treatment being studied for gingival diseases that may be applicable for G tongue. [3][4] There are over 100 types of bacteria in the oral cavity, 5 and certain motile bacteria use flagellar motors to invade the tissues of the gingiva and tongue. 6 Thus, some periodontal bacteria, such as Porphyromonas gingivalis, are detected in the gingival tissues.…”

Section: Dear Editormentioning

confidence: 99%

“…UV light therapy has long been considered for dental caries and gingival inflammation. Recently, Aung et al 3 found that both 265-nm and 285-nm UV light may have strong bactericidal effects and has confirmed severe phototoxicity to fibroblasts, while 310-nm UV light may induce the partial killing or growth suppression of bacteria with much less fibroblast phototoxicity. Takada et al 4 showed that narrowband UVB-light-emitting diode irradiation has a weak bactericidal effect on oral bacteria and low level of toxicity to gingival epithelial cells.…”

Section: Dear Editormentioning

confidence: 99%

Geographic Tongue: Proposal for the Use of Ultraviolet A Phototherapy

Horiuchi¹

2022

International Journal of Dermatology and Venereology

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The Effects of Ultraviolet Light-Emitting Diodes with Different Wavelengths on Periodontopathic BacteriaIn Vitro

Cited by 11 publications

References 36 publications

Does Ultraviolet Radiation Exhibit Antimicrobial Effect against Oral Pathogens Attached on Various Dental Implant Surfaces? A Systematic Review

Does Ultraviolet Radiation Exhibit Antimicrobial Effect against Oral Pathogens Attached on Various Dental Implant Surfaces? A Systematic Review

Application of ultraviolet light sources for in vivo disinfection

Geographic Tongue: Proposal for the Use of Ultraviolet A Phototherapy

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