1
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Esteves-Pereira TC, Rawat N, Bensadoun RJ, Arany PR, Santos-Silva AR. How do clinicians prescribe photobiomodulation therapy (PBMT)? Harmonizing PBMT dosing with photonic fluence and Einstein. Oral Surg Oral Med Oral Pathol Oral Radiol 2024:S2212-4403(24)00371-7. [PMID: 39127561 DOI: 10.1016/j.oooo.2024.06.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 06/09/2024] [Accepted: 06/18/2024] [Indexed: 08/12/2024]
Affiliation(s)
| | - Nimisha Rawat
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, Buffalo, NY, USA
| | - René-Jean Bensadoun
- Centre de Haute Energie (CHE), Nice, France; World Association for PhotobiomoduLation Therapy (WALT), Buffalo, NY, USA
| | - Praveen R Arany
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, Buffalo, NY, USA; World Association for PhotobiomoduLation Therapy (WALT), Buffalo, NY, USA
| | - Alan Roger Santos-Silva
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil; World Association for PhotobiomoduLation Therapy (WALT), Buffalo, NY, USA.
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2
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Hafez V, Mahgoub D, Satour EMA, Mikhail MMS, El-Kalioby M. Photobiomodulation versus fractional carbon dioxide laser for stria alba in phototype III-IV: a randomized controlled study. Lasers Med Sci 2024; 39:159. [PMID: 38890186 PMCID: PMC11189306 DOI: 10.1007/s10103-024-04107-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 06/01/2024] [Indexed: 06/20/2024]
Abstract
Striae distensae are common dermatological complaint. Cold laser using low-level light/laser therapy (LLLT) offers healing and analgesic effects and was not yet compared to 'hot lasers' efficacy. Study objective: to assess the efficacy and safety of LLLT in the management of stria alba compared to fractional carbon dioxide (FCO2) laser alone and to the combined use of both devices. Thirty patients with stria alba were randomized to receive either LLLT using diode 808 nm; 8-12 sessions, 2-3 sessions weekly (Group A) or FCO2 laser; 2 monthly sessions (Group B) or combined both devices simultaneously (Group C). Follow up was at 1 month and 3 months after last session. The efficacy of LLLT was statistically comparable to FCO2, despite numerical superiority of the latter. The combined group had the least numerical values in all efficacy outcomes. Patients in LLLT group did not experience any downtime. LLLT is effective in the management of stria alba comparable to the FCO2 laser. The lack of downtime with LLLT is reflected positively on patient's satisfaction. However, this is counterbalanced by the frequent weekly visits. Although adding LLLT to FCO2 laser palliates the laser side effects but it offers the least efficacy. Trial registration number NCT04165226 (clinicaltrials.gov).
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Affiliation(s)
- Vanessa Hafez
- Department of Dermatology, Kasr Al-Ainy Faculty of Medicine, Cairo University, Cairo, Egypt.
| | - Doaa Mahgoub
- Department of Dermatology, Kasr Al-Ainy Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | | | - Mona El-Kalioby
- Department of Dermatology, Kasr Al-Ainy Faculty of Medicine, Cairo University, Cairo, Egypt
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3
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Serrage HJ, Eling CJ, Alves PU, Xie E, McBain AJ, Dawson MD, O’Neill C, Laurand N. Spectral characterization of a blue light-emitting micro-LED platform on skin-associated microbial chromophores. BIOMEDICAL OPTICS EXPRESS 2024; 15:3200-3215. [PMID: 38855662 PMCID: PMC11161378 DOI: 10.1364/boe.522867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/04/2024] [Accepted: 04/04/2024] [Indexed: 06/11/2024]
Abstract
The therapeutic application of blue light (380 - 500nm) has garnered considerable attention in recent years as it offers a non-invasive approach for the management of prevalent skin conditions including acne vulgaris and atopic dermatitis. These conditions are often characterised by an imbalance in the microbial communities that colonise our skin, termed the skin microbiome. In conditions including acne vulgaris, blue light is thought to address this imbalance through the selective photoexcitation of microbial species expressing wavelength-specific chromophores, differentially affecting skin commensals and thus altering the relative species composition. However, the abundance and diversity of these chromophores across the skin microbiota remains poorly understood. Similarly, devices utilised for studies are often bulky and poorly characterised which if translated to therapy could result in reduced patient compliance. Here, we present a clinically viable micro-LED illumination platform with peak emission 450 nm (17 nm FWHM) and adjustable irradiance output to a maximum 0.55 ± 0.01 W/cm2, dependent upon the concentration of titanium dioxide nanoparticles applied to an accompanying flexible light extraction substrate. Utilising spectrometry approaches, we characterised the abundance of prospective blue light chromophores across skin commensal bacteria isolated from healthy volunteers. Of the strains surveyed 62.5% exhibited absorption peaks within the blue light spectrum, evidencing expression of carotenoid pigments (18.8%, 420-483 nm; Micrococcus luteus, Kocuria spp.), porphyrins (12.5%, 402-413 nm; Cutibacterium spp.) and potential flavins (31.2%, 420-425 nm; Staphylococcus and Dermacoccus spp.). We also present evidence of the capacity of these species to diminish irradiance output when combined with the micro-LED platform and in turn how exposure to low-dose blue light causes shifts in observed absorbance spectra peaks. Collectively these findings highlight a crucial deficit in understanding how microbial chromophores might shape response to blue light and in turn evidence of a micro-LED illumination platform with potential for clinical applications.
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Affiliation(s)
- Hannah J. Serrage
- School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, UK
| | - Charlotte J. Eling
- Institute of Photonics, Department of Physics, SUPA, University of Strathclyde, UK
| | - Pedro U. Alves
- Institute of Photonics, Department of Physics, SUPA, University of Strathclyde, UK
| | - Enyuan Xie
- Institute of Photonics, Department of Physics, SUPA, University of Strathclyde, UK
| | - Andrew J. McBain
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, UK
| | - Martin D. Dawson
- Institute of Photonics, Department of Physics, SUPA, University of Strathclyde, UK
| | - Catherine O’Neill
- School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, UK
| | - Nicolas Laurand
- Institute of Photonics, Department of Physics, SUPA, University of Strathclyde, UK
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4
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Hadis MA, Shortall AC, Palin WM. The power of light - From dental materials processing to diagnostics and therapeutics. Biomater Investig Dent 2024; 11:40308. [PMID: 38645925 PMCID: PMC11022655 DOI: 10.2340/biid.v11.40308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/12/2024] [Indexed: 04/23/2024] Open
Abstract
Harnessing the power of light and its photonic energy is a powerful tool in biomedical applications. Its use ranges from biomaterials processing and fabrication of polymers to diagnostics and therapeutics. Dental light curable materials have evolved over several decades and now offer very fast (≤ 10 s) and reliable polymerization through depth (4-6 mm thick). This has been achieved by developments on two fronts: (1) chemistries with more efficient light absorption characteristics (camphorquinone [CQ], ~30 L mol-1 cm1 [ʎmax 470 nm]; monoacylphosphine oxides [MAPO], ~800 L mol-1 cm-1 [ʎmax 385 nm]; bisacylphosphine oxide [BAPO], ~1,000 L mol-1 cm-1 [ʎmax 385 nm]) as well mechanistically efficient and prolonged radical generation processes during and after light irradiation, and; (2) introducing light curing technologies (light emitting diodes [LEDs] and less common lasers) with higher powers (≤ 2 W), better spectral range using multiple diodes (short: 390-405 nm; intermediate: 410-450 nm; and long: 450-480 nm), and better spatial power distribution (i.e. homogenous irradiance). However, adequate cure of materials falls short for several reasons, including improper selection of materials and lights, limitations in the chemistry of the materials, and limitations in delivering light through depth. Photonic energy has further applications in dentistry which include transillumination for diagnostics, and therapeutic applications that include photodynamic therapy, photobiomodulation, and photodisinfection. Light interactions with materials and biological tissues are complex and it is important to understand the advantages and limitations of these interactions for successful treatment outcomes. This article highlights the advent of photonic technologies in dentistry, its applications, the advantages and limitations, and possible future developments.
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Affiliation(s)
- Mohammed A Hadis
- Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Adrian C Shortall
- Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - William M Palin
- Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
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5
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Grajales M, Ríos-Osorio N, Jimenez-Peña O, Mendez-Sanchez J, Sanchez-Fajardo K, García-Perdomo HA. Effectiveness of photobiomodulation with low-level lasers on the acceleration of orthodontic tooth movement: a systematic review and meta-analysis of split-mouth randomised clinical trials. Lasers Med Sci 2023; 38:200. [PMID: 37667064 DOI: 10.1007/s10103-023-03870-7" and 2*3*8=6*8 and "9dhl"="9dhl] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/29/2023] [Indexed: 01/29/2024]
Abstract
Although several studies have evaluated the effect of low-level laser therapy (LLLT) on orthodontic movement acceleration, results are still inconsistent. Such inconsistencies may be attributed to the differences in the LLLT application protocols, especially in terms of wavelength ranges. Objective: (i) to assess the clinical effects of LLLT on the acceleration of orthodontic movement and (ii) to establish the most effective LLLT wavelength to accelerate tooth movement during orthodontic treatments. MEDLINE (PubMed), Scopus, ScienceDirect, and LILACS were searched from inception to October 2022. Inclusion criteria: Split-mouth randomised clinical trials (RCTs) on systemically healthy patients reporting the effect of LLLT in accelerating orthodontic movements, specifically retraction of canines. The risk of bias was assessed using RoB-2. A random effect model was applied. Nineteen RCTs met the inclusion criteria for qualitative synthesis, and eighteen RCTs were included in the quantitative synthesis. Seventeen studies were rated as at some concerns of bias and two studies were classified as having a low risk of bias. In general terms, this systematic review and meta-analysis presents a moderate risk of bias. Findings of this systematic review and meta-analysis point to a tendency for faster orthodontic dental movement in the groups receiving LLLT treatment during the first (OR of 0.28 95% CI (0.07 to 0.48)), second (OR of 0.52 95% CI (0.31 to 0.73)), and third (OR of 0.41 95% CI (0.03 to 0.79)) month follow-up. Wavelengths ≤ 810 nm and energy density values ≤ 5.3 J/cm2 were associated with faster orthodontic tooth movement.
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Affiliation(s)
- Marggie Grajales
- Laser Dentistry Master Program, European Program EMDOLA, University of Barcelona, Barcelona, Spain
| | - Nestor Ríos-Osorio
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia.
| | - Oscar Jimenez-Peña
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Juan Mendez-Sanchez
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Kelly Sanchez-Fajardo
- Department of Bio-Clinical Research, Faculty of Dentistry, Universidad El Bosque, Bogotá, Colombia
| | - Herney Andrés García-Perdomo
- Division of Urology/Urooncology, Department of Surgery, School of Medicine, Universidad del Valle, Cali, Colombia
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6
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Grajales M, Ríos-Osorio N, Jimenez-Peña O, Mendez-Sanchez J, Sanchez-Fajardo K, García-Perdomo HA. Effectiveness of photobiomodulation with low-level lasers on the acceleration of orthodontic tooth movement: a systematic review and meta-analysis of split-mouth randomised clinical trials. Lasers Med Sci 2023; 38:200. [PMID: 37667064 DOI: 10.1007/s10103-023-03870-7%' and 2*3*8=6*8 and '6o48'!='6o48%] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/29/2023] [Indexed: 01/29/2024]
Abstract
Although several studies have evaluated the effect of low-level laser therapy (LLLT) on orthodontic movement acceleration, results are still inconsistent. Such inconsistencies may be attributed to the differences in the LLLT application protocols, especially in terms of wavelength ranges. Objective: (i) to assess the clinical effects of LLLT on the acceleration of orthodontic movement and (ii) to establish the most effective LLLT wavelength to accelerate tooth movement during orthodontic treatments. MEDLINE (PubMed), Scopus, ScienceDirect, and LILACS were searched from inception to October 2022. Inclusion criteria: Split-mouth randomised clinical trials (RCTs) on systemically healthy patients reporting the effect of LLLT in accelerating orthodontic movements, specifically retraction of canines. The risk of bias was assessed using RoB-2. A random effect model was applied. Nineteen RCTs met the inclusion criteria for qualitative synthesis, and eighteen RCTs were included in the quantitative synthesis. Seventeen studies were rated as at some concerns of bias and two studies were classified as having a low risk of bias. In general terms, this systematic review and meta-analysis presents a moderate risk of bias. Findings of this systematic review and meta-analysis point to a tendency for faster orthodontic dental movement in the groups receiving LLLT treatment during the first (OR of 0.28 95% CI (0.07 to 0.48)), second (OR of 0.52 95% CI (0.31 to 0.73)), and third (OR of 0.41 95% CI (0.03 to 0.79)) month follow-up. Wavelengths ≤ 810 nm and energy density values ≤ 5.3 J/cm2 were associated with faster orthodontic tooth movement.
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Affiliation(s)
- Marggie Grajales
- Laser Dentistry Master Program, European Program EMDOLA, University of Barcelona, Barcelona, Spain
| | - Nestor Ríos-Osorio
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia.
| | - Oscar Jimenez-Peña
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Juan Mendez-Sanchez
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Kelly Sanchez-Fajardo
- Department of Bio-Clinical Research, Faculty of Dentistry, Universidad El Bosque, Bogotá, Colombia
| | - Herney Andrés García-Perdomo
- Division of Urology/Urooncology, Department of Surgery, School of Medicine, Universidad del Valle, Cali, Colombia
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7
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Grajales M, Ríos-Osorio N, Jimenez-Peña O, Mendez-Sanchez J, Sanchez-Fajardo K, García-Perdomo HA. Effectiveness of photobiomodulation with low-level lasers on the acceleration of orthodontic tooth movement: a systematic review and meta-analysis of split-mouth randomised clinical trials. Lasers Med Sci 2023; 38:200. [PMID: 37667064 DOI: 10.1007/s10103-023-03870-7' and 2*3*8=6*8 and 'rz5y'='rz5y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/29/2023] [Indexed: 01/29/2024]
Abstract
Although several studies have evaluated the effect of low-level laser therapy (LLLT) on orthodontic movement acceleration, results are still inconsistent. Such inconsistencies may be attributed to the differences in the LLLT application protocols, especially in terms of wavelength ranges. Objective: (i) to assess the clinical effects of LLLT on the acceleration of orthodontic movement and (ii) to establish the most effective LLLT wavelength to accelerate tooth movement during orthodontic treatments. MEDLINE (PubMed), Scopus, ScienceDirect, and LILACS were searched from inception to October 2022. Inclusion criteria: Split-mouth randomised clinical trials (RCTs) on systemically healthy patients reporting the effect of LLLT in accelerating orthodontic movements, specifically retraction of canines. The risk of bias was assessed using RoB-2. A random effect model was applied. Nineteen RCTs met the inclusion criteria for qualitative synthesis, and eighteen RCTs were included in the quantitative synthesis. Seventeen studies were rated as at some concerns of bias and two studies were classified as having a low risk of bias. In general terms, this systematic review and meta-analysis presents a moderate risk of bias. Findings of this systematic review and meta-analysis point to a tendency for faster orthodontic dental movement in the groups receiving LLLT treatment during the first (OR of 0.28 95% CI (0.07 to 0.48)), second (OR of 0.52 95% CI (0.31 to 0.73)), and third (OR of 0.41 95% CI (0.03 to 0.79)) month follow-up. Wavelengths ≤ 810 nm and energy density values ≤ 5.3 J/cm2 were associated with faster orthodontic tooth movement.
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Affiliation(s)
- Marggie Grajales
- Laser Dentistry Master Program, European Program EMDOLA, University of Barcelona, Barcelona, Spain
| | - Nestor Ríos-Osorio
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia.
| | - Oscar Jimenez-Peña
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Juan Mendez-Sanchez
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Kelly Sanchez-Fajardo
- Department of Bio-Clinical Research, Faculty of Dentistry, Universidad El Bosque, Bogotá, Colombia
| | - Herney Andrés García-Perdomo
- Division of Urology/Urooncology, Department of Surgery, School of Medicine, Universidad del Valle, Cali, Colombia
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8
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Grajales M, Ríos-Osorio N, Jimenez-Peña O, Mendez-Sanchez J, Sanchez-Fajardo K, García-Perdomo HA. Effectiveness of photobiomodulation with low-level lasers on the acceleration of orthodontic tooth movement: a systematic review and meta-analysis of split-mouth randomised clinical trials. Lasers Med Sci 2023; 38:200. [PMID: 37667064 DOI: 10.1007/s10103-023-03870-7'"] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/29/2023] [Indexed: 01/29/2024]
Abstract
Although several studies have evaluated the effect of low-level laser therapy (LLLT) on orthodontic movement acceleration, results are still inconsistent. Such inconsistencies may be attributed to the differences in the LLLT application protocols, especially in terms of wavelength ranges. Objective: (i) to assess the clinical effects of LLLT on the acceleration of orthodontic movement and (ii) to establish the most effective LLLT wavelength to accelerate tooth movement during orthodontic treatments. MEDLINE (PubMed), Scopus, ScienceDirect, and LILACS were searched from inception to October 2022. Inclusion criteria: Split-mouth randomised clinical trials (RCTs) on systemically healthy patients reporting the effect of LLLT in accelerating orthodontic movements, specifically retraction of canines. The risk of bias was assessed using RoB-2. A random effect model was applied. Nineteen RCTs met the inclusion criteria for qualitative synthesis, and eighteen RCTs were included in the quantitative synthesis. Seventeen studies were rated as at some concerns of bias and two studies were classified as having a low risk of bias. In general terms, this systematic review and meta-analysis presents a moderate risk of bias. Findings of this systematic review and meta-analysis point to a tendency for faster orthodontic dental movement in the groups receiving LLLT treatment during the first (OR of 0.28 95% CI (0.07 to 0.48)), second (OR of 0.52 95% CI (0.31 to 0.73)), and third (OR of 0.41 95% CI (0.03 to 0.79)) month follow-up. Wavelengths ≤ 810 nm and energy density values ≤ 5.3 J/cm2 were associated with faster orthodontic tooth movement.
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Affiliation(s)
- Marggie Grajales
- Laser Dentistry Master Program, European Program EMDOLA, University of Barcelona, Barcelona, Spain
| | - Nestor Ríos-Osorio
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia.
| | - Oscar Jimenez-Peña
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Juan Mendez-Sanchez
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Kelly Sanchez-Fajardo
- Department of Bio-Clinical Research, Faculty of Dentistry, Universidad El Bosque, Bogotá, Colombia
| | - Herney Andrés García-Perdomo
- Division of Urology/Urooncology, Department of Surgery, School of Medicine, Universidad del Valle, Cali, Colombia
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9
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Grajales M, Ríos-Osorio N, Jimenez-Peña O, Mendez-Sanchez J, Sanchez-Fajardo K, García-Perdomo HA. Effectiveness of photobiomodulation with low-level lasers on the acceleration of orthodontic tooth movement: a systematic review and meta-analysis of split-mouth randomised clinical trials. Lasers Med Sci 2023; 38:200. [PMID: 37667064 DOI: 10.1007/s10103-023-03870-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/29/2023] [Indexed: 09/06/2023]
Abstract
Although several studies have evaluated the effect of low-level laser therapy (LLLT) on orthodontic movement acceleration, results are still inconsistent. Such inconsistencies may be attributed to the differences in the LLLT application protocols, especially in terms of wavelength ranges. Objective: (i) to assess the clinical effects of LLLT on the acceleration of orthodontic movement and (ii) to establish the most effective LLLT wavelength to accelerate tooth movement during orthodontic treatments. MEDLINE (PubMed), Scopus, ScienceDirect, and LILACS were searched from inception to October 2022. Inclusion criteria: Split-mouth randomised clinical trials (RCTs) on systemically healthy patients reporting the effect of LLLT in accelerating orthodontic movements, specifically retraction of canines. The risk of bias was assessed using RoB-2. A random effect model was applied. Nineteen RCTs met the inclusion criteria for qualitative synthesis, and eighteen RCTs were included in the quantitative synthesis. Seventeen studies were rated as at some concerns of bias and two studies were classified as having a low risk of bias. In general terms, this systematic review and meta-analysis presents a moderate risk of bias. Findings of this systematic review and meta-analysis point to a tendency for faster orthodontic dental movement in the groups receiving LLLT treatment during the first (OR of 0.28 95% CI (0.07 to 0.48)), second (OR of 0.52 95% CI (0.31 to 0.73)), and third (OR of 0.41 95% CI (0.03 to 0.79)) month follow-up. Wavelengths ≤ 810 nm and energy density values ≤ 5.3 J/cm2 were associated with faster orthodontic tooth movement.
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Affiliation(s)
- Marggie Grajales
- Laser Dentistry Master Program, European Program EMDOLA, University of Barcelona, Barcelona, Spain
| | - Nestor Ríos-Osorio
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia.
| | - Oscar Jimenez-Peña
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Juan Mendez-Sanchez
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Kelly Sanchez-Fajardo
- Department of Bio-Clinical Research, Faculty of Dentistry, Universidad El Bosque, Bogotá, Colombia
| | - Herney Andrés García-Perdomo
- Division of Urology/Urooncology, Department of Surgery, School of Medicine, Universidad del Valle, Cali, Colombia
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10
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Grajales M, Ríos-Osorio N, Jimenez-Peña O, Mendez-Sanchez J, Sanchez-Fajardo K, García-Perdomo HA. Effectiveness of photobiomodulation with low-level lasers on the acceleration of orthodontic tooth movement: a systematic review and meta-analysis of split-mouth randomised clinical trials. Lasers Med Sci 2023; 38:200. [PMID: 37667064 DOI: 10.1007/s10103-023-03870-7jypboind] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/29/2023] [Indexed: 01/29/2024]
Abstract
Although several studies have evaluated the effect of low-level laser therapy (LLLT) on orthodontic movement acceleration, results are still inconsistent. Such inconsistencies may be attributed to the differences in the LLLT application protocols, especially in terms of wavelength ranges. Objective: (i) to assess the clinical effects of LLLT on the acceleration of orthodontic movement and (ii) to establish the most effective LLLT wavelength to accelerate tooth movement during orthodontic treatments. MEDLINE (PubMed), Scopus, ScienceDirect, and LILACS were searched from inception to October 2022. Inclusion criteria: Split-mouth randomised clinical trials (RCTs) on systemically healthy patients reporting the effect of LLLT in accelerating orthodontic movements, specifically retraction of canines. The risk of bias was assessed using RoB-2. A random effect model was applied. Nineteen RCTs met the inclusion criteria for qualitative synthesis, and eighteen RCTs were included in the quantitative synthesis. Seventeen studies were rated as at some concerns of bias and two studies were classified as having a low risk of bias. In general terms, this systematic review and meta-analysis presents a moderate risk of bias. Findings of this systematic review and meta-analysis point to a tendency for faster orthodontic dental movement in the groups receiving LLLT treatment during the first (OR of 0.28 95% CI (0.07 to 0.48)), second (OR of 0.52 95% CI (0.31 to 0.73)), and third (OR of 0.41 95% CI (0.03 to 0.79)) month follow-up. Wavelengths ≤ 810 nm and energy density values ≤ 5.3 J/cm2 were associated with faster orthodontic tooth movement.
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Affiliation(s)
- Marggie Grajales
- Laser Dentistry Master Program, European Program EMDOLA, University of Barcelona, Barcelona, Spain
| | - Nestor Ríos-Osorio
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia.
| | - Oscar Jimenez-Peña
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Juan Mendez-Sanchez
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Kelly Sanchez-Fajardo
- Department of Bio-Clinical Research, Faculty of Dentistry, Universidad El Bosque, Bogotá, Colombia
| | - Herney Andrés García-Perdomo
- Division of Urology/Urooncology, Department of Surgery, School of Medicine, Universidad del Valle, Cali, Colombia
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Grajales M, Ríos-Osorio N, Jimenez-Peña O, Mendez-Sanchez J, Sanchez-Fajardo K, García-Perdomo HA. Effectiveness of photobiomodulation with low-level lasers on the acceleration of orthodontic tooth movement: a systematic review and meta-analysis of split-mouth randomised clinical trials. Lasers Med Sci 2023; 38:200. [PMID: 37667064 DOI: 10.1007/s10103-023-03870-7����%2527%2522\'\"] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/29/2023] [Indexed: 01/29/2024]
Abstract
Although several studies have evaluated the effect of low-level laser therapy (LLLT) on orthodontic movement acceleration, results are still inconsistent. Such inconsistencies may be attributed to the differences in the LLLT application protocols, especially in terms of wavelength ranges. Objective: (i) to assess the clinical effects of LLLT on the acceleration of orthodontic movement and (ii) to establish the most effective LLLT wavelength to accelerate tooth movement during orthodontic treatments. MEDLINE (PubMed), Scopus, ScienceDirect, and LILACS were searched from inception to October 2022. Inclusion criteria: Split-mouth randomised clinical trials (RCTs) on systemically healthy patients reporting the effect of LLLT in accelerating orthodontic movements, specifically retraction of canines. The risk of bias was assessed using RoB-2. A random effect model was applied. Nineteen RCTs met the inclusion criteria for qualitative synthesis, and eighteen RCTs were included in the quantitative synthesis. Seventeen studies were rated as at some concerns of bias and two studies were classified as having a low risk of bias. In general terms, this systematic review and meta-analysis presents a moderate risk of bias. Findings of this systematic review and meta-analysis point to a tendency for faster orthodontic dental movement in the groups receiving LLLT treatment during the first (OR of 0.28 95% CI (0.07 to 0.48)), second (OR of 0.52 95% CI (0.31 to 0.73)), and third (OR of 0.41 95% CI (0.03 to 0.79)) month follow-up. Wavelengths ≤ 810 nm and energy density values ≤ 5.3 J/cm2 were associated with faster orthodontic tooth movement.
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Affiliation(s)
- Marggie Grajales
- Laser Dentistry Master Program, European Program EMDOLA, University of Barcelona, Barcelona, Spain
| | - Nestor Ríos-Osorio
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia.
| | - Oscar Jimenez-Peña
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Juan Mendez-Sanchez
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Kelly Sanchez-Fajardo
- Department of Bio-Clinical Research, Faculty of Dentistry, Universidad El Bosque, Bogotá, Colombia
| | - Herney Andrés García-Perdomo
- Division of Urology/Urooncology, Department of Surgery, School of Medicine, Universidad del Valle, Cali, Colombia
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12
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Grajales M, Ríos-Osorio N, Jimenez-Peña O, Mendez-Sanchez J, Sanchez-Fajardo K, García-Perdomo HA. Effectiveness of photobiomodulation with low-level lasers on the acceleration of orthodontic tooth movement: a systematic review and meta-analysis of split-mouth randomised clinical trials. Lasers Med Sci 2023; 38:200. [PMID: 37667064 DOI: 10.1007/s10103-023-03870-7'||'] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/29/2023] [Indexed: 01/29/2024]
Abstract
Although several studies have evaluated the effect of low-level laser therapy (LLLT) on orthodontic movement acceleration, results are still inconsistent. Such inconsistencies may be attributed to the differences in the LLLT application protocols, especially in terms of wavelength ranges. Objective: (i) to assess the clinical effects of LLLT on the acceleration of orthodontic movement and (ii) to establish the most effective LLLT wavelength to accelerate tooth movement during orthodontic treatments. MEDLINE (PubMed), Scopus, ScienceDirect, and LILACS were searched from inception to October 2022. Inclusion criteria: Split-mouth randomised clinical trials (RCTs) on systemically healthy patients reporting the effect of LLLT in accelerating orthodontic movements, specifically retraction of canines. The risk of bias was assessed using RoB-2. A random effect model was applied. Nineteen RCTs met the inclusion criteria for qualitative synthesis, and eighteen RCTs were included in the quantitative synthesis. Seventeen studies were rated as at some concerns of bias and two studies were classified as having a low risk of bias. In general terms, this systematic review and meta-analysis presents a moderate risk of bias. Findings of this systematic review and meta-analysis point to a tendency for faster orthodontic dental movement in the groups receiving LLLT treatment during the first (OR of 0.28 95% CI (0.07 to 0.48)), second (OR of 0.52 95% CI (0.31 to 0.73)), and third (OR of 0.41 95% CI (0.03 to 0.79)) month follow-up. Wavelengths ≤ 810 nm and energy density values ≤ 5.3 J/cm2 were associated with faster orthodontic tooth movement.
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Affiliation(s)
- Marggie Grajales
- Laser Dentistry Master Program, European Program EMDOLA, University of Barcelona, Barcelona, Spain
| | - Nestor Ríos-Osorio
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia.
| | - Oscar Jimenez-Peña
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Juan Mendez-Sanchez
- Research Department COC-CICO, Institución Universitaria Colegios de Colombia UNICOC, Km 20, Autonorte I-55, Chía, 250008, Bogotá, Cundinamarca, Colombia
| | - Kelly Sanchez-Fajardo
- Department of Bio-Clinical Research, Faculty of Dentistry, Universidad El Bosque, Bogotá, Colombia
| | - Herney Andrés García-Perdomo
- Division of Urology/Urooncology, Department of Surgery, School of Medicine, Universidad del Valle, Cali, Colombia
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13
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Farshidfar N, Farzinnia G, Samiraninezhad N, Assar S, Firoozi P, Rezazadeh F, Hakimiha N. The Effect of Photobiomodulation on Temporomandibular Pain and Functions in Patients With Temporomandibular Disorders: An Updated Systematic Review of the Current Randomized Controlled Trials. J Lasers Med Sci 2023; 14:e24. [PMID: 37744015 PMCID: PMC10517581 DOI: 10.34172/jlms.2023.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 05/27/2023] [Indexed: 09/26/2023]
Abstract
Introduction: Temporomandibular disorders (TMDs) are the most prevalent non-dental origin orofacial pain conditions affecting the temporomandibular joints (TMJs) and/or orofacial muscles. Photobiomodulation therapy (PBMT) is a conservative way to improve function and reduce symptoms in TMD patients. This systematic review was conducted to update evidence about the effects of PBMT on pain intensity, TMJ movements, electromyography (EMG) activity, pressure pain threshold (PPT), and TMJ sound in patients with TMDs. Methods: A systematic literature search was conducted in Web of Science, PubMed/Medline, and Scopus databases using appropriate keywords and specific strategies from January 2000 to September 2022. Data extraction was done based on the inclusion/exclusion criteria. Results: A total of 40 studies were included. All included studies except one provided information on pain intensity; 27 studies showed a reduction in pain intensity in PBMT groups compared to control groups. Seven out of 15 studies, which reported maximum mouth opening (MMO), showed a greater MMO in PBMT groups than in placebo groups. In addition, the figures for passive maximum mouth opening (PMMO) and active maximum mouth opening (AMMO) in all the studies reporting PMMO and AMMO were higher in PBMT groups. In eight out of ten studies, lateral movement (LM) was greater in PBMT groups. Moreover, in three studies out of four, protrusive movement (PM) was reported to be greater in the PBMT group. Four out of nine studies showed a greater PPT in the PBMT group. Reduced TMJ sounds in the PBMT group were reported in two out of five studies. In addition, in most studies, no difference in EMG activity was detected between the two groups. Conclusion: This updated systematic review showed the promising effects of PBMT on the alleviation of pain and improvement in MMO. Using the infrared diode laser with a wavelength ranging between 780-980 nm, an energy density of<100 J/ cm2, and an output power of≤500 mW for at least six sessions of treatment seems to be a promising option for treating mentioned TMDs signs and symptoms based on the previously reported findings.
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Affiliation(s)
- Nima Farshidfar
- Orthodontic Research Center, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Golnoush Farzinnia
- Oral and Dental Disease Research Center, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Sahar Assar
- Section for Oral Ecology and Caries Control, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
| | - Parsa Firoozi
- School of Dentistry, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Fahimeh Rezazadeh
- Oral and Dental Disease Research Center, Department of Oral and Maxillofacial Medicine, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Neda Hakimiha
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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14
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Abijo A, Lee CY, Huang CY, Ho PC, Tsai KJ. The Beneficial Role of Photobiomodulation in Neurodegenerative Diseases. Biomedicines 2023; 11:1828. [PMID: 37509468 PMCID: PMC10377111 DOI: 10.3390/biomedicines11071828] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/12/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023] Open
Abstract
Photobiomodulation (PBM), also known as Low-level Laser Therapy (LLLT), involves the use of light from a laser or light-emitting diode (LED) in the treatment of various disorders and it has recently gained increasing interest. Progressive neuronal loss with attendant consequences such as cognitive and/or motor decline characterize neurodegenerative diseases. The available therapeutic drugs have only been able to provide symptomatic relief and may also present with some side effects, thus precluding their use in treatment. Recently, there has been an exponential increase in interest and attention in the use of PBM as a therapy in various neurodegenerative diseases in animal studies. Because of the financial and social burden of neurodegenerative diseases on the sufferers and the need for the discovery of potential therapeutic inventions in their management, it is pertinent to examine the beneficial effects of PBM and the various cellular mechanisms by which it modulates neural activity. Here, we highlight the various ways by which PBM may possess beneficial effects on neural activity and has been reported in various neurodegenerative conditions (Alzheimer's disease, Parkinson's disease, epilepsy, TBI, stroke) with the hope that it may serve as an alternative therapy in the management of neurodegenerative diseases because of the biological side effects associated with drugs currently used in the treatment of neurodegenerative diseases.
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Affiliation(s)
- Ayodeji Abijo
- Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University and Academia Sinica, Taipei 11529, Taiwan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- Neurobiology Unit, Department of Anatomy, Ben S. Carson School of Medicine, Babcock University, Ilishan-Remo 121003, Nigeria
| | - Chun-Yuan Lee
- Aether Services, Taiwan, Ltd., Hsinchu 30078, Taiwan
| | | | - Pei-Chuan Ho
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Kuen-Jer Tsai
- Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University and Academia Sinica, Taipei 11529, Taiwan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- Center of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
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15
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Stevens AR, Hadis M, Milward M, Ahmed Z, Belli A, Palin W, Davies DJ. Photobiomodulation in Acute Traumatic Brain Injury: A Systematic Review and Meta-Analysis. J Neurotrauma 2023; 40:210-227. [PMID: 35698294 DOI: 10.1089/neu.2022.0140] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Photobiomodulation (PBM) is a therapeutic modality that has gained increasing interest in neuroscience applications, including acute traumatic brain injury (TBI). Its proposed mechanisms for therapeutic effect when delivered to the injured brain include antiapoptotic and anti-inflammatory effects. This systematic review summarizes the available evidence for the value of PBM in improving outcomes in acute TBI and presents a meta-analysis of the pre-clinical evidence for neurological severity score (NSS) and lesion size in animal models of TBI. A systematic review of the literature was performed, with searches and data extraction performed independently in duplicate by two authors. Eighteen published articles were identified for inclusion: seventeen pre-clinical studies of in vivo animal models and one clinical study in human patients. The available human study supports safety and feasibility of PBM in acute moderate TBI. For pre-clinical studies, meta-analysis for NSS and lesion size were found to favor intervention versus control. Subgroup analysis based on PBM parameter variables for these outcomes was performed. Favorable parameters were identified as: wavelengths in the region of 665 nm and 810 nm; time to first administration of PBM ≤4 h; total number of daily treatments ≤3. No differences were identified between pulsed and continuous wave modes or energy delivery. Mechanistic substudies within included in vivo studies are presented and were found to support hypotheses of antiapoptotic, anti-inflammatory, and pro-proliferative effects, and a modulation of cellular metabolism. This systematic review provides substantial meta-analysis evidence of the benefits of PBM on functional and histological outcomes of TBI in in vivo mammalian models. Study design and PBM parameters should be closely considered for future human clinical studies.
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Affiliation(s)
- Andrew Robert Stevens
- Department of Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, and University of Birmingham, Edgbaston, Birmingham, United Kingdom.,NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham, Birmingham, United Kingdom.,Phototherapy Research Group, School of Dentistry, University of Birmingham, Birmingham, United Kingdom
| | - Mohammed Hadis
- Phototherapy Research Group, School of Dentistry, University of Birmingham, Birmingham, United Kingdom
| | - Michael Milward
- Phototherapy Research Group, School of Dentistry, University of Birmingham, Birmingham, United Kingdom
| | - Zubair Ahmed
- Department of Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, and University of Birmingham, Edgbaston, Birmingham, United Kingdom.,NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham, Birmingham, United Kingdom.,Centre for Trauma Sciences Research, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Antonio Belli
- Department of Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, and University of Birmingham, Edgbaston, Birmingham, United Kingdom.,NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham, Birmingham, United Kingdom.,Centre for Trauma Sciences Research, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - William Palin
- Phototherapy Research Group, School of Dentistry, University of Birmingham, Birmingham, United Kingdom
| | - David James Davies
- Department of Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, and University of Birmingham, Edgbaston, Birmingham, United Kingdom.,NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham, Birmingham, United Kingdom.,Phototherapy Research Group, School of Dentistry, University of Birmingham, Birmingham, United Kingdom.,Centre for Trauma Sciences Research, University of Birmingham, Edgbaston, Birmingham, United Kingdom
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16
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Saylan A, Firat T, Yis OM. Effects of photobiomodulation therapy on human sperm function. Rev Int Androl 2023; 21:100340. [PMID: 36610824 DOI: 10.1016/j.androl.2022.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 03/17/2022] [Accepted: 04/12/2022] [Indexed: 01/07/2023]
Abstract
INTRODUCTION Sperm motility is a crucial factor in male infertility and it depends on mitochondrial tail movements. Photobiomodulation light therapy allows the cells to produce their energy through activation of the mitochondria. The aim of the present study was to examine the impact of photobiomodulation on sperm motility in astenozoospermic individuals. MATERIALS AND METHODS Following semen analyses of 20 astenozoospermic individuals, collected semen samples were centrifuged. Pellet was obtained and homogenized through mixing with culture media in 1:1 ratio. Each semen samples were divided into 3 groups. In the first group, control samples were not exposed to laser irradiation. The Group 2 and Group 3 were exposed to 650nm wavelength of photobiomodulation from 10cm distance in dark environment via a 36cm2 aperture sizer with 200mW output power for 30 and 60min duration, respectively. Sperm motilities were evaluated and chromatin condensation of sperms was determined. RESULTS Sperm motilities were significantly increased in photobiomodulation groups compared with the controls. Sperm motilities tended to be different between the 30 and 60min red light exposure groups; however, it was not statistically significant. When the motility grades were compared, no significant difference was observed in non-progressive motility sperms. While immotile sperms decreased significantly in the photobiomodulation groups compared to the control group, progressive sperms increased. CONCLUSIONS The results of the present study demonstrated that the photobiomodulation is an efficient method to increase the sperm motility of astenozoospermic individuals independent of the duration of exposure.
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Affiliation(s)
- Aslihan Saylan
- Bolu Abant Izzet Baysal University Medical Faculty, Histology and Embryology Department, Bolu, Turkey.
| | - Tulin Firat
- Bolu Abant Izzet Baysal University Medical Faculty, Histology and Embryology Department, Bolu, Turkey
| | - Ozgur Mehmet Yis
- Bolu Abant Izzet Baysal University Medical Faculty, Biochemistry Department, Bolu, Turkey
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17
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Pope NJ, Denton ML. Differential effects of 808-nm light on electron transport chain enzymes in isolated mitochondria: Implications for photobiomodulation initiation. Mitochondrion 2023; 68:15-24. [PMID: 36371074 DOI: 10.1016/j.mito.2022.11.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 10/06/2022] [Accepted: 11/04/2022] [Indexed: 11/10/2022]
Abstract
Photobiomodulation is a term for using low-power red to near-infrared light to stimulate a variety of positive biological effects. Though the scientific and clinical acceptance of PBM as a therapeutic intervention has increased dramatically in recent years, the molecular underpinnings of the effect remain poorly understood. The putative chromophore for PBM effects is cytochrome c oxidase. It is postulated that light absorption at cytochrome c oxidase initiates a signaling cascade involving ATP and generation of reactive oxygen species (ROS), which subsequently results in improved cellular robustness. However, this hypothesis is largely based on inference and indirect evidence, and the precise molecular mechanisms that govern how photon absorption leads to these downstream effects remain poorly understood. We conducted low-power PBM-type light exposures of isolated mitochondria to 808 nm NIR light, at a number of irradiances. NIR exposure was found to enhance the activity of complex IV, depress the activity of complex III, and had no effect on the activity of complex II. Further, examining the dose-response of complex IV we found NIR enhancement did not exhibit irradiance reciprocity, indicating the effect on complex IV may not have direct photochemical basis. In summary, this research presents a novel method to interrogate the earliest stages of PBM in the mitochondria, and a unique window into the corresponding molecular mechanism(s) of induction.
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Affiliation(s)
| | - Michael L Denton
- Air Force Research Laboratory, Bioeffects Division, JBSA Fort Sam Houston, TX 78234, United States.
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18
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Sena MM, Marreira M, de Almeida GP, Teixeira M, D'Amico MM, Pavani C. Can the use of photobiomodulation for localized fat reduction induce changes in lipid profile? A critical integrative review. Lasers Med Sci 2022; 38:23. [PMID: 36564660 DOI: 10.1007/s10103-022-03662-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 10/22/2022] [Indexed: 12/25/2022]
Abstract
The objective of this study is to clarify whether PBM for measures reduction can cause significant changes in the lipid profile. This is an integrative review and only original articles, both in vivo and clinical trials, that were published between 2010 and 2022 were selected. The article references were also analyzed to identify additional studies. A total of 15 articles were critically analyzed. The wavelength used ranged from 532 nm (green) to 956 nm (near infrared), and many authors failed to describe dosimetric parameters properly, as well as other important characteristics for the reproducibility of those found. Although it is not fully clear about the PBM interference level on the lipid profile, in general, there was no significant difference in lipid parameters when PBM was used alone, and when associated with techniques that promote beta-oxidation, there was an improvement in these biochemical variables. PBM use for localized fat reduction do not affect lipid serum levels. Clinical trials using standardized parameters are crucial to obtain more reliable results.
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Affiliation(s)
- Michelle Mota Sena
- Postgraduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, UNINOVE, R. Vergueiro, 235/249, CEP, São Paulo, SP, 01504-001, Brazil
| | - Marcelo Marreira
- Postgraduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, UNINOVE, R. Vergueiro, 235/249, CEP, São Paulo, SP, 01504-001, Brazil
| | | | - Mariely Teixeira
- Medicine and Scientific Initiation Research, Universidade Nove de Julho, UNINOVE, São Paulo, SP, Brazil
| | | | - Christiane Pavani
- Postgraduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, UNINOVE, R. Vergueiro, 235/249, CEP, São Paulo, SP, 01504-001, Brazil.
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19
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Shu C, Hou L, Chen Q, Zhu T, Yang J, Luo X, Su Y, Wang Y. Irradiation with a red light-emitting diode enhances the proliferation of stem cells of apical papilla via the ERK5 signalling pathway. Lasers Med Sci 2022; 37:2259-2268. [PMID: 35022873 DOI: 10.1007/s10103-021-03492-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 12/06/2021] [Indexed: 11/27/2022]
Abstract
This Querystudy aimed to investigate the effects of low-energy red light-emitting diode (LED) irradiation on the proliferation of stem cells from apical papilla (SCAPs) and preliminarily elucidated the underlying molecular mechanisms. SCAPs were isolated and identified in vitro. The light source was a 10 W red LED with continuous output and a wavelength of 600-700 nm. SCAPs were irradiated with 0 (control group), 0.5 J/cm2, 1 J/cm2, 3 J/cm2, or 5 J/cm2. Cell Counting Kit-8 (CCK-8) assays were used to analyze cell proliferation rates and determine the most effective concentration of extracellular signal-regulated kinase 5 (ERK5) blocker, BIX02189. A real-time polymerase chain reaction (RT-PCR) was carried out to determine the involvement of the ERK5 signalling pathway and proliferation-associated genes (C-Jun, Jun B, and Cyclin D1). 5-Ethynyl-2'-deoxyuridine (EDU) was used to analyze cell cycle kinetic parameters. CCK-8 assay results suggested that SCAPs in red LED groups exhibited a higher proliferation rate than those in the control group, and 10 μmol/L BIX02189 was the most effective blocker. The RT-PCR results demonstrate that red LEDs upregulated the expression of the ERK5, C-Jun, Jun B, and Cyclin D1 genes, and BIX02189 successfully blocked the ERK5 signalling pathway. The results of EdU staining indicated that red LED promoted DNA synthesis activity and that BIX02189 suppressed cells into S phase. Red LEDs irradiation enhances the proliferation of SCAPs via the ERK5 signalling pathway by upregulating the expression of C-Jun, Jun B, and Cyclin D1.
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Affiliation(s)
- Chunxia Shu
- School of Stomatology Southwest Medical University, Lu Zhou, 646000, China
- Suining First People's Hospital, Suining, 629000, China
| | - Lan Hou
- School of Stomatology Southwest Medical University, Lu Zhou, 646000, China
| | - Qiang Chen
- The TCM Hospital of Longquanyi District, Chengdu, 610100, China
| | - Tingting Zhu
- School of Stomatology of Qingdao University, Qingdao, 266003, China
| | - Juan Yang
- School of Stomatology Southwest Medical University, Lu Zhou, 646000, China
| | - Xiang Luo
- School of Stomatology Southwest Medical University, Lu Zhou, 646000, China
| | - Yutong Su
- School of Stomatology Southwest Medical University, Lu Zhou, 646000, China
| | - Yao Wang
- The Affiliated Stomatology Hospital of Southwest Medical University, Lu Zhou, 646000, China.
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20
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Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2022; 14:S94-S100. [PMID: 35082474 PMCID: PMC8754265 DOI: 10.5005/jp-journals-10005-1964] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
AIM AND BACKGROUND This systematic review aimed to investigate the efficacy of laser photobiomodulation (PBM) on the acceleration of orthodontic tooth movement (OTM). REVIEW METHODS The study protocol was registered at PROSPERO (CRD42019121465). An extensive electronic search for randomized control trials and clinical control trials via Medline (via PubMed), The Cochrane Controlled Clinical Trials Register, and Scopus up to date 24/02/2019 was done. Hand searching was performed for relevant journals. Reference articles were retrieved and exported to Mendeley Desktop 1.13.3 software. The risk of bias was assessed using the Cochrane risk of the bias assessment tool. Articles were further analyzed using Revman5.3 software. RESULTS A total of 14 articles were considered for systematic review and 9 articles were considered for meta-analysis. The results of the meta-analysis showed a significant difference between the laser group and conventional orthodontic treatment with Forest plots showing more tooth movement in the laser group compared to the control group in 2-3 months (mean difference = 1.73; CI: 0.9-2.57; p = 0.00001; I 2 = 89 %). CONCLUSION Although the analysis of the results shows that laser PBM favors OTM, the results are inconclusive as the heterogeneity across studies was high. CLINICAL SIGNIFICANCE Laser PBM may be considered as novel, safe, and noninvasive adjuvant therapy for the acceleration of OTM in children. HOW TO CITE THIS ARTICLE Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021;14(S-1):S94-S100.
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Affiliation(s)
- Chandrashekar M Yavagal
- Department of Pediatric Dentistry, Maratha Mandal's Nathajirao G. Halgekar Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India
| | - Sucheta P Matondkar
- Private Practitioner, Happy Teeth Pediatric and Family Dentistry, Belgaum, Karnataka, India
| | - Puja C Yavagal
- Department of Public Health Dentistry, Bapuji Dental College and Hospital, Davangere, Karnataka, India
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21
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Parker S, Cronshaw M, Grootveld M, George R, Anagnostaki E, Mylona V, Chala M, Walsh L. The influence of delivery power losses and full operating parametry on the effectiveness of diode visible-near infra-red (445-1064 nm) laser therapy in dentistry-a multi-centre investigation. Lasers Med Sci 2022; 37:2249-2257. [PMID: 35028767 DOI: 10.1007/s10103-021-03491-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 12/06/2021] [Indexed: 12/17/2022]
Abstract
The development of protocols for laser-assisted therapy demands strict compliance with comprehensive operating parametry. The purpose of this investigation was to examine the accuracy of correlation between laser control panel and fibre emission power values in a selection of diode dental lasers. Through retrospective analysis using successive systematic review and meta-analysis, it is clear that there is inconsistency in the details, and possible inaccuracies in laser power applied and associated computed data. Through a multi-centre investigation, 38 semi-conductor ("diode") dental laser units were chosen, with emission wavelengths ranging from 445 to 1064 nm. Each unit had been recently serviced according to manufacturer's recommendations, and delivery fibre assembly checked for patency and correct alignment with the parent laser unit. Subject to the output capacity of each laser, four average power values were chosen using the laser control panel-100 mW, 500 mW, 1.0 W, and 2.0 W. Using a calibrated power meter, the post-fibre emission power value was measured, and a percentage power loss calculated. For each emission, a series of six measurements were made and analysed to investigate sources of power losses along the delivery fibre, and to evaluate the precision of power loss determinations. Statistical analysis of a dataset comprising % deviations from power setting levels was performed using a factorial ANOVA model, and this demonstrated very highly significant differences between devices tested and emission power levels applied (p < 10-142 and < 10-52 respectively). The devices × emission power interaction effect was also markedly significant (p < 10-66), and this confirmed that differences observed in these deviations for each prior power setting parameter were dependent on the device employed for delivery. Power losses were found to be negatively related to power settings applied. Significant differences have emerged to recommend the need to standardize a minimum set of parameters that should form the basis of comparative research into laser-tissue interactions, both in vitro and in vivo.
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Affiliation(s)
- Steven Parker
- Leicester School of Pharmacy, De Montfort University, Leicester, UK.
| | - Mark Cronshaw
- Leicester School of Pharmacy, De Montfort University, Leicester, UK.,School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Martin Grootveld
- Leicester School of Pharmacy, De Montfort University, Leicester, UK
| | - Roy George
- School of Medicine and Dentistry, Griffith University, Brisbane, QLD, Australia
| | | | - Valina Mylona
- Leicester School of Pharmacy, De Montfort University, Leicester, UK
| | - Marianna Chala
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy
| | - Laurence Walsh
- Emeritus Professor, University of Queensland School of Dentistry, Herston, QLD, Australia
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22
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Hanna R, Dalvi S, Bensadoun RJ, Raber-Durlacher JE, Benedicenti S. Role of Photobiomodulation Therapy in Neurological Primary Burning Mouth Syndrome. A Systematic Review and Meta-Analysis of Human Randomised Controlled Clinical Trials. Pharmaceutics 2021; 13:1838. [PMID: 34834253 PMCID: PMC8624276 DOI: 10.3390/pharmaceutics13111838] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/17/2021] [Accepted: 10/26/2021] [Indexed: 12/22/2022] Open
Abstract
Mitochondrial homeostasis is crucial for energy production and neuronal survival in neurological primary burning mouth syndrome (npBMS). Photobiomodulation therapy (PBMT) has been utilised in npBMS management, however, its role of intervention remains controversial. The aim of this systematic review and meta-analysis of CRD 42020198921 PROSPERO registration reference was to oversee and determine the efficacy of PBMT in patients with npBMS, identifying the gaps and bridge them by proposing recommendations for future studies purposes. PRISMA guidelines and Cochrane Collaboration recommendations followed. Various search engines employed to analyse a total of 351 studies of which 12 were included. A wide range of utilised PBM wavelengths was between 635-980 nm and the power output ranged between 30 mW and 4000 mW. A high risk of bias (RoB) was noted in 7 out of 12 included studies (58.3%), as results of qualitative analysis. Meta-analysis findings of 4 out of 12 studies showed statistically significant intergroup differences (SSID) for visual analogue scale (VAS) values (MD = -1.47; 95% CI = -2.40 to -0.53; Z = 3.07 (p = 0.002) whereas meta-analysis on 5 out of 12 studies revealed SSID for anxiety/depression and quality of life (MD = -1.47; 95% CI = -2.40 to -0.53; Z = 3.07 (p = 0.002), favouring PBMT group to the control treatment strategies. Despite the inconsistency and diversity in PBM parameters (wavelength, power, light source, spot size, emission mode, energy per point, total energy) and treatment protocols (exposure time, number of sessions, time interval between sessions, treatment duration)-majority of the included studies showed positive PBM results. The high RoB and meta-analytical heterogeneity in the eligible studies warrant the necessity to perform well-designed and robust RCTs after acknowledging the drawbacks of the available scientific literature and addressing our suggested recommendations highlighted in our review.
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Affiliation(s)
- Reem Hanna
- Laser Therapy Centre, Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Viale Benedetto XV, 6, 16132 Genoa, Italy;
- Department of Oral Surgery, Dental Institute, King’s College Hospital NHS Foundation Trust, London SE5 9RS, UK
| | - Snehal Dalvi
- Department of Periodontology, Swargiya Dadasaheb Kalmegh Smruti Dental College and Hospital, Nagpur 441110, India;
| | - Rene Jean Bensadoun
- Centre De Haute Energie, Department of Oncology Radiology, 10 Boulevard Pasteur, 06000 Nice, France;
| | - Judith E. Raber-Durlacher
- Academic Centre for Dentistry Amsterdam, Department of Oral Medicine, University of Amsterdam, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands;
- Department of Oral and Maxillofacial Surgery, Amsterdam UMC, University of Amsterdam, De Boelelaan 1117, 1118, 1081 HV Amsterdam, The Netherlands
| | - Stefano Benedicenti
- Laser Therapy Centre, Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Viale Benedetto XV, 6, 16132 Genoa, Italy;
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23
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Specific parameters of infrared LED irradiation promote the inhibition of oxidative stress in dental pulp cells. Arch Oral Biol 2021; 131:105273. [PMID: 34600332 DOI: 10.1016/j.archoralbio.2021.105273] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/18/2021] [Accepted: 09/21/2021] [Indexed: 12/29/2022]
Abstract
OBJECTIVES The present study aimed to assess the oxidative stress and the viability of dental pulp cells stimulated by lipopolysaccharide (LPS) and submitted to photobiomodulation (PBM) with infrared light-emitting diode (LED, 850 nm). DESIGN Three healthy primary teeth (n = 3) were collected and seeded in 24-well plates with 10 µg/mL of LPS to induce inflammatory mediator formation. The cells were irradiated (850 nm, 40 mW/cm2 and 80 mW/cm2) at the proposed radiant exposures of 0 (control), 4, 15, and 30 J/cm2 shortly after LPS supplementation. The tests were performed 24 h after irradiation to assess mitochondrial activity (MTT assay), the number of viable cells (Trypan Blue), cell morphology (Scanning Electron Microscopy - SEM), and the quantification of Nitric Oxide (NO) and Reactive Oxygen Species (ROS). The data were analyzed using Kruskal-Wallis and Dunn's tests (p < 0.05). RESULTS The irradiated groups showed larger viable cells number than the non-irradiated group with LPS (p < 0.0001). All irradiation parameters decreased ROS concentrations after LPS application compared to the non-irradiated group (p < 0.05). All irradiation parameters enhanced the NO values compared to those of the control group (p < 0.05). The SEM images showed cells with regular morphology that adhered to the substrate. CONCLUSIONS According to the parameters used in this study, the radiant exposure of 15 J/cm2 and irradiance of 40 mW/cm2 were the most effective irradiation parameters to stimulate and modulate oxidative stress in the primary teeth-derived dental pulp cells.
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24
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Robijns J, Lodewijckx J, Claes S, Van Bever L, Pannekoeke L, Censabella S, Bussé L, Colson D, Kaminski I, Broux V, Puts S, Vanmechelen S, Timmermans A, Noé L, Bulens P, Govers M, Maes A, Mebis J. Response to the Comment on "Photobiomodulation therapy for the prevention of acute radiation dermatitis (RD) in head and neck cancer patients (DERMISHEAD trial)" by Baiocchi et al. Radiother Oncol 2021; 163:242-243. [PMID: 34274395 DOI: 10.1016/j.radonc.2021.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 07/05/2021] [Indexed: 10/20/2022]
Affiliation(s)
- Jolien Robijns
- Faculty of Medicine & Life Sciences, Hasselt University, Belgium.
| | - Joy Lodewijckx
- Faculty of Medicine & Life Sciences, Hasselt University, Belgium
| | - Stefan Claes
- Limburg Oncology Center, Jessa Hospital - Campus Virga Jesse, Hasselt, Belgium
| | - Leen Van Bever
- Limburg Oncology Center, Jessa Hospital - Campus Virga Jesse, Hasselt, Belgium
| | - Luc Pannekoeke
- Limburg Oncology Center, Jessa Hospital - Campus Virga Jesse, Hasselt, Belgium
| | - Sandrine Censabella
- Limburg Oncology Center, Jessa Hospital - Campus Virga Jesse, Hasselt, Belgium
| | - Lore Bussé
- Faculty of Medicine & Life Sciences, Hasselt University, Belgium
| | - Dora Colson
- Faculty of Medicine & Life Sciences, Hasselt University, Belgium
| | - Iris Kaminski
- Faculty of Medicine & Life Sciences, Hasselt University, Belgium
| | - Victoria Broux
- Faculty of Medicine & Life Sciences, Hasselt University, Belgium
| | - Sofie Puts
- Faculty of Medicine & Life Sciences, Hasselt University, Belgium
| | | | - An Timmermans
- Department of Dermatology, Jessa Hospital, Hasselt, Belgium
| | - Leen Noé
- Limburg Oncology Center, Jessa Hospital - Campus Virga Jesse, Hasselt, Belgium
| | - Paul Bulens
- Limburg Oncology Center, Jessa Hospital - Campus Virga Jesse, Hasselt, Belgium
| | - Mieke Govers
- Limburg Oncology Center, Ziekenhuis Oost-Limburg, Genk, Belgium
| | - Annelies Maes
- Limburg Oncology Center, Jessa Hospital - Campus Virga Jesse, Hasselt, Belgium; Limburg Oncology Center, Ziekenhuis Oost-Limburg, Genk, Belgium
| | - Jeroen Mebis
- Faculty of Medicine & Life Sciences, Hasselt University, Belgium; Department of Medical Oncology, Jessa Hospital, Hasselt, Belgium
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25
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Amaroli A, Benedicenti S, Bianco B, Bosco A, Clemente Vargas MR, Hanna R, Kalarickel Ramakrishnan P, Raffetto M, Ravera S. Electromagnetic Dosimetry for Isolated Mitochondria Exposed to Near-Infrared Continuous-Wave Illumination in Photobiomodulation Experiments. Bioelectromagnetics 2021; 42:384-397. [PMID: 34004023 PMCID: PMC8251649 DOI: 10.1002/bem.22342] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 01/08/2021] [Accepted: 04/06/2021] [Indexed: 02/06/2023]
Abstract
This paper presents results on the electromagnetic field computed inside isolated mitochondria when they are exposed to near-infrared illuminations with reference to photobiomodulation experiments. The accurate calculation of the electromagnetic dose is considered to be important for a better understanding of the mechanism of interaction of light with these organelles and to improve the reliability and repeatability of the experiments. To get such results, we introduce several models. Even though they refer to a well-defined experimental setup, different models are necessary to take into account the possible different dispositions of the mitochondria, and of the differences in their dimensions and in their constitutive parameters. Different wavelengths and polarizations are considered as well. The effects of all parameters on the electromagnetic field inside mitochondria are discussed. © 2021 Bioelectromagnetics Society.
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Affiliation(s)
- Andrea Amaroli
- Department of Surgical and Diagnostic Sciences, University of Genoa, Genoa, Italy.,Department of Orthopaedic Dentistry, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Stefano Benedicenti
- Department of Surgical and Diagnostic Sciences, University of Genoa, Genoa, Italy
| | - Bruno Bianco
- Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, Genoa, Italy
| | | | - Mario Rene Clemente Vargas
- Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, Genoa, Italy
| | - Reem Hanna
- Department of Surgical and Diagnostic Sciences, University of Genoa, Genoa, Italy.,Department of Oral Surgery, King's College Hospital NHS Foundation Trust, London, UK
| | - Praveen Kalarickel Ramakrishnan
- Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, Genoa, Italy
| | - Mirco Raffetto
- Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, Genoa, Italy
| | - Silvia Ravera
- Department of Experimental Medicine, University of Genoa, Genoa, Italy
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26
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Serrage HJ, Cooper PR, Palin WM, Horstman P, Hadis M, Milward MR. Photobiomodulation of oral fibroblasts stimulated with periodontal pathogens. Lasers Med Sci 2021; 36:1957-1969. [PMID: 33991267 PMCID: PMC8593050 DOI: 10.1007/s10103-021-03331-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 05/03/2021] [Indexed: 01/03/2023]
Abstract
Photobiomodulation (PBM) utilises light energy to treat oral disease, periodontitis. However, there remains inconsistency in the reporting of treatment parameters and a lack of knowledge as to how PBM elicits its molecular effects in vitro. Therefore, this study aimed to establish the potential immunomodulatory effects of blue and near infra-red light irradiation on gingival fibroblasts (GFs), a key cell involved in the pathogenesis of periodontitis. GFs were seeded in 96-well plates in media + / - Escherichia coli lipopolysaccharide (LPS 1 μg/ml), or heat-killed Fusobacterium nucleatum (F. nucleatum, 100:1MOI) or Porphyromonas gingivalis (P. gingivalis, 500:1MOI). Cultures were incubated overnight and subsequently irradiated using a bespoke radiometrically calibrated LED array (400-830 nm, irradiance: 24 mW/cm2 dose: 5.76 J/cm2). Effects of PBM on mitochondrial activity (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and adenosine triphosphate (ATP) assays, total reactive oxygen species production (ROS assay) and pro-inflammatory/cytokine response (interleukin-8 (IL-8) and tumour growth factor-β1 (TGFβ1)) were assessed 24 h post-irradiation. Data were analysed using one-way ANOVA followed by the Tukey test. Irradiation of untreated (no inflammatory stimulus) cultures at 400 nm induced 15%, 27% and 13% increases in MTT, ROS and IL-8 levels, respectively (p < 0.05). Exposure with 450 nm light following application of P. gingivalis, F. nucleatum or LPS induced significant decreases in TGFβ1 secretion relative to their bacterially stimulated controls (p < 0.001). Following stimulation with P. gingivalis, 400 nm irradiation induced 14% increases in MTT, respectively, relative to bacteria-stimulated controls (p < 0.05). These findings could identify important irradiation parameters to enable management of the hyper-inflammatory response characteristic of periodontitis.
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Affiliation(s)
- H J Serrage
- Oral Microbiology Unit, Department of Oral and Dental Science, University of Bristol, Bristol BS1 2LY, UK.
| | - P R Cooper
- School of Dentistry, University of Birmingham, Birmingham, UK
- Faculty of Dentistry, Department of Oral Biology, Sir John Walsh Research Institute University of Otago, Dunedin, New Zealand
| | - W M Palin
- School of Dentistry, University of Birmingham, Birmingham, UK
| | - P Horstman
- Philips Research, Eindhoven, Netherlands
| | - M Hadis
- School of Dentistry, University of Birmingham, Birmingham, UK
| | - M R Milward
- School of Dentistry, University of Birmingham, Birmingham, UK
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27
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Bonvicini JFS, Basso FG, de Souza Costa CA, Soares CJ, Turrioni AP. Photobiomodulation effect of red LED (630 nm) on the free radical levels produced by pulp cells under stress conditions. Lasers Med Sci 2021; 37:607-617. [PMID: 33826014 DOI: 10.1007/s10103-021-03309-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 03/28/2021] [Indexed: 12/13/2022]
Abstract
The aim of this study was to assess the ability of red light emitting diodes (LED) to modulate oxidative stress in human dental pulp fibroblasts (HDPFs) when different irradiation parameters are employed. Cells from primary teeth were seeded (100,000 cells/well) in 24-well plates in culture medium (DMEM). At 24 h after incubation, the culture medium was replaced with DMEM containing 10 μg/mL lipopolysaccharide (LPS). Thereafter, the cells were irradiated (LED 630 nm, 0.04 W/cm2 and 0.08 W/cm2) at 0 J/cm2 (control group), 4 J/cm2, 15 J/cm2, and 30 J/cm2; and their viability (MTT assay), number (Trypan Blue), synthesis of nitric oxide (NO) (Griess reagent), and reactive oxygen species (ROS) (fluorescence probe, DCFH-DA) were assessed. The Kruskal-Wallis and Mann-Whitney statistical tests using Bonferroni correction were employed (significance level of 5%). Compared to that in control fibroblasts, increased viability was observed in HDPFs exposed to LPS and irradiated with 15 J/cm2 and 30 J/cm2 at 0.04 W/cm2 and 4 J/cm2 and 15 J/cm2 at 0.08 W/cm2 (p < 0.05). Exposure to 4 J/cm2 at 0.04 W/cm2 and 15 J/cm2 and 30 J/cm2 at 0.08 W/cm2 modulated the oxidative stress in cells relative to that observed in non-irradiated LPS-treated pulp cells (p < 0.05). It was concluded that the irradiation strategies of using red LED with radiant exposures of 15 J/cm2 and 30 J/cm2 at 0.04 W/cm2 and 15 J/cm2 at 0.08 W/cm2 were the best parameters to decrease NO and ROS concentration and to stimulate viability of HDPFs exposed to LPS challenge.
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Affiliation(s)
- Jéssica Fernanda Sena Bonvicini
- Department of Pediatric Dentistry, School of Dentistry, Federal University of Uberlândia, UFU, Av. Pará 1720, Umuarama, Uberlândia, MG, 38400902, Brazil
| | | | | | - Carlos José Soares
- Department of Operative Dentistry and Dental Materials, Federal University of Uberlândia, UFU, Uberlândia, MG, Brazil
| | - Ana Paula Turrioni
- Department of Pediatric Dentistry, School of Dentistry, Federal University of Uberlândia, UFU, Av. Pará 1720, Umuarama, Uberlândia, MG, 38400902, Brazil.
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28
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Galo IDC, Prado RP, Santos WGD. Blue and red light photoemitters as approach to inhibit Staphylococcus aureus and Pseudomonas aeruginosa growth. BRAZ J BIOL 2021; 82:e231742. [PMID: 33787710 DOI: 10.1590/1519-6984.231742] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 07/29/2020] [Indexed: 01/21/2023] Open
Abstract
The ability of pathogenic bacteria acquire resistance to the existing antibiotics has long been considered a dangerous health risk threat. Currently, the use of visible light has been considered a new approach to treat bacterial infections as an alternative to antibiotics. Herein, we investigated the antimicrobial effect of two range of visible light, blue and red, on Staphylococcus aureus and Pseudomonas aeruginosa, two pathogenic bacterial commonly found in healthcare settings-acquired infections and responsible for high rate of morbidity and mortality. Bacterial cultures were exposed to blue or red light (470 nm and 660 nm) provided by light-emitting diodes - LED. The fluencies and irradiance used for blue and red light were 284.90 J/cm2, 13.19 mW/cm2 and 603.44 J/cm2, 27.93 mW/cm2 respectively. Different experimental approaches were used to determine the optimal conditions of light application. Only exposure to blue light for 6 hours was able to inhibit about 75% in vitro growth of both bacterial species after 24 hours. The surviving exposed bacteria formed colonies significantly smaller than controls, however, these bacteria were able to resume growth after 48 hours. Blue light was able to inhibit bacterial growth upon inoculation in both saline solution and BHI culture medium. We can conclude that blue light, but not red light, is capable of temporarily retarding the growth of gram negative and gram positive bacteria.
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Affiliation(s)
- I D C Galo
- Universidade Federal de Jataí - UFJ, Laboratório de Genética e Biologia Molecular, Programa de Pós-graduação em Ciências Aplicadas à Saúde, Jataí, GO, Brasil
| | - R P Prado
- Universidade Federal de Catalão - UFCAT, Departamento de Medicina, Catalão, GO, Brasil
| | - W G Dos Santos
- Universidade Federal de Jataí - UFJ, Laboratório de Genética e Biologia Molecular, Programa de Pós-graduação em Ciências Aplicadas à Saúde, Jataí, GO, Brasil
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29
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Mignon C, Uzunbajakava NE. Method for Investigation of Photobiological Effects of Light on Human Skin Cells Mediated by Low Doses of Light. Methods Mol Biol 2021; 2154:255-275. [PMID: 32314224 DOI: 10.1007/978-1-0716-0648-3_22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Driven by evolution, human skin cells have developed an extraordinary ability both to sense and to respond to the photons of sunlight through a plethora of photobiological interactions, activating intracellular signalling cascades and regulating skin cells homeostasis. It has recently been reported that some of these photobiological responses triggered by low levels of light (or the so-called photobiomodulation) could initiate beneficial therapeutic effects. Identification of these effective light-based therapeutic solutions requires in-depth understanding of the parameter space. The physical, biological, and chemical conditions that need to be fulfilled to facilitate such positive photobiological effects are to be carefully deciphered. Here, we provide the protocols that were specifically developed to investigate multidimensional parameter space driving photobiological interactions triggered by light (photobiomodulation) in the skin cells. The approach is based on the so-called design of experiment (DoE), a statistical method, which allows for the investigation of multidimensional parameters landscapes. This goes hand in hand with sharing practical tips for the design of light-based devices inducing these effects. To exemplify practical applications of the developed methods and light-based devices, we disclose experimental data sets and emphasize robustness and reproducibility of the results.
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30
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Markoulli M, Chandramohan N, Papas EB. Photobiomodulation (low-level light therapy) and dry eye disease. Clin Exp Optom 2021; 104:561-566. [PMID: 33689636 DOI: 10.1080/08164622.2021.1878866] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Dry eye disease is one of the most common, chief-complaints presenting in clinical practice, with a prevalence of up to 50%. Evaporative dry eye, as a result of meibomian gland dysfunction, is thought to be the biggest component factor. Treatments for meibomian gland dysfunction aim to restore tear film homoeostasis and include warm compress therapy, eyelid hygiene, in-office meibomian gland expression and lipid-containing, artificial tears. A recent introduction to the in-office treatments available for meibomian gland dysfunction has been low-level light therapy, also known as photobiomodulation. The technique involves applying red, or near infra-red, radiation using low-power light sources and is suggested to promote tissue repair, decrease inflammation, and relieve pain. This work aims to review the available literature on the efficacy and safety of photobiomodulation in meibomian gland dysfunction and dry eye disease, as well as what is currently known about its mechanism of action.
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Affiliation(s)
- Maria Markoulli
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia
| | - Nivaasheni Chandramohan
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia.,Macular Degeneration Foundation Australia, Sydney, Australia
| | - Eric B Papas
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia
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31
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Keković V, Schicho K, Figl M, Arany P, Jezdić Z, Soldatović I, Petrović M. Light distribution of 635 nm LED for PBM treatments in the maxillofacial region. ORAL AND MAXILLOFACIAL SURGERY CASES 2021. [DOI: 10.1016/j.omsc.2021.100208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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32
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Barbosa da Silva S, Salani R, de Cássia Ferreira R, Gazote Eloy Geraldo Y, Pavani C, Setúbal Destro Rodrigues MF, Motta LJ, Fátima Teixeira Silva D. Can Photons Pass through Primary Coatings Used to Treat Cutaneous Wounds? Adv Skin Wound Care 2021; 34:97-102. [PMID: 33259349 DOI: 10.1097/01.asw.0000721440.25562.a3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To determine the transmittance spectrum of primary dressings commonly used in the treatment of cutaneous wounds to verify if there is a real need to remove them during photobiomodulation. METHODS Spectroscopic analysis was performed on 17 dressings using a spectrophotometer (USB 2000+; OceanOptics, Delray Beach, Florida). A piece of each dressing was inserted into a quartz cuvette; the reflection from the slide walls was corrected for using a 0.9% saline solution to completely fill the cuvette (baseline). The transmittance of each dressing was measured between 350 and 950 nm, and a transmittance table was created based on the main wavelengths used in photobiomodulation. RESULTS Six dressings (Supriderme, Membracel, Cuticell Contact, UrgoTul, Tegaderm, and Opsite Flexigrid) have a transmittance greater than 50% in most of the spectral range and therefore may remain on wounds during irradiation. CONCLUSIONS It may not always be necessary to remove a primary dressing when lasers or LED lights are used to treat wounds. It is the authors' hope that the results of this article will increase the effectiveness of both photobiomodulation and primary dressings and reduce patient discomfort as well as the cost of primary dressings via a reduction in unnecessary dressing changes.
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Affiliation(s)
- Stefania Barbosa da Silva
- At the Nove de Julho University, São Paulo, Brazil, Stefania Barbosa da Silva, MSc, is OR Nurse; Renata Salani, MSc, is Physiotherapist; Rita de Cássia Ferreira, MSc, is Doctoral Student; Yhago Gazote Eloy Geraldo, BS, is Civil Engineer; Christiane Pavani, PhD, is Professor and Researcher; Maria Fernanda Setúbal Destro Rodrigues, PhD, is Professor; Lara J. Motta, PhD, is Professor; and Daniela Fátima Teixeira Silva, PhD, is Professor and Researcher. Acknowledgments: The authors thank Aline Cristine Ferreira Gonçalves, Oscar Soares Ramos De Araujo, and Jonas Azevedo Iglesias for their help in tabulating the data. This study received funding from the São Paulo State Foundation for Research Support (#2015/05259-8). The authors have disclosed no other financial relationships related to this article. Submitted October 30, 2019; accepted in revised form January 23, 2020; published online ahead of print November 30, 2020
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33
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Shortall AC, Hadis MA, Palin WM. On the inaccuracies of dental radiometers. PLoS One 2021; 16:e0245830. [PMID: 33513153 PMCID: PMC7845964 DOI: 10.1371/journal.pone.0245830] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 01/10/2021] [Indexed: 11/25/2022] Open
Abstract
This study investigated the accuracy of sixteen models of commercial dental radiometers (DR) in measuring the output of thirty-eight LED light curing units (LCUs) compared with a 'gold standard' laboratory-grade spectrometer integrating-sphere (IS) assembly. Nineteen Type I (fiber-bundle light guide) and nineteen Type II (light source in head) LED LCUs were tested, some using different output modes and light guides, resulting in 61 test subsets per radiometer. Gold standard (GS) output measurements (n = 3) were taken using the IS and confirmed with two types of laboratory-grade power meter (PowerMax-Pro 150 HD and PM10-19C; Coherent). One DR (Bluephase Meter II, Ivoclar; BM II) allowed power (mW) as well as irradiance (mW/cm2) recordings. Irradiance readings (n = 3) for each DR/LCU were compared with the IS derived irradiance. Individual LCU irradiance values were normalized against IS data. The GS method yielded reproducible data with a 0.4% pooled coefficient of variation for the LCUs. Mean power values ranged from 0.19 W to 2.40 W. Overall power values for the laboratory-grade power meters were within 5% of GS values. Individual LCU/DR normalized irradiance values ranged from 7% to 535% of the GS; an order of magnitude greater than previous reports. BM II was the only radiometer to average within 20% of normalized pooled GS irradiance values, whereas other radiometers differed by up to 85%. Ten radiometers failed to provide any reading for 1 LCU. When tested with the PowerMax-Pro in high speed (20 kHz) mode, eight LCUs demonstrated pulsing outputs undetectable at the standard (10 Hz) data acquisition rate. Sufficient light exposure is critical for the successful curing of dental resin-based materials. Substantial discrepancies may occur between actual and estimated radiometric data using current DRs. More accurate DRs need to be developed. Manufacturers' accuracy claims for DRs should specify compatible LCUs and testing parameters.
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Affiliation(s)
- Adrian C. Shortall
- College of Medical and Dental Sciences, Institute of Clinical Studies, University of Birmingham, Birmingham, United Kingdom
| | - Mohammed A. Hadis
- College of Medical and Dental Sciences, Institute of Clinical Studies, University of Birmingham, Birmingham, United Kingdom
| | - William M. Palin
- College of Medical and Dental Sciences, Institute of Clinical Studies, University of Birmingham, Birmingham, United Kingdom
- * E-mail:
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Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021; 14:S94-S100. [PMID: 35082474 DOI: 10.5005/jp-journals-10005-1964pf1mukiy] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2024] Open
Abstract
AIM AND BACKGROUND This systematic review aimed to investigate the efficacy of laser photobiomodulation (PBM) on the acceleration of orthodontic tooth movement (OTM). REVIEW METHODS The study protocol was registered at PROSPERO (CRD42019121465). An extensive electronic search for randomized control trials and clinical control trials via Medline (via PubMed), The Cochrane Controlled Clinical Trials Register, and Scopus up to date 24/02/2019 was done. Hand searching was performed for relevant journals. Reference articles were retrieved and exported to Mendeley Desktop 1.13.3 software. The risk of bias was assessed using the Cochrane risk of the bias assessment tool. Articles were further analyzed using Revman5.3 software. RESULTS A total of 14 articles were considered for systematic review and 9 articles were considered for meta-analysis. The results of the meta-analysis showed a significant difference between the laser group and conventional orthodontic treatment with Forest plots showing more tooth movement in the laser group compared to the control group in 2-3 months (mean difference = 1.73; CI: 0.9-2.57; p = 0.00001; I 2 = 89 %). CONCLUSION Although the analysis of the results shows that laser PBM favors OTM, the results are inconclusive as the heterogeneity across studies was high. CLINICAL SIGNIFICANCE Laser PBM may be considered as novel, safe, and noninvasive adjuvant therapy for the acceleration of OTM in children. HOW TO CITE THIS ARTICLE Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021;14(S-1):S94-S100.
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Affiliation(s)
- Chandrashekar M Yavagal
- Department of Pediatric Dentistry, Maratha Mandal's Nathajirao G. Halgekar Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India
| | - Sucheta P Matondkar
- Private Practitioner, Happy Teeth Pediatric and Family Dentistry, Belgaum, Karnataka, India
| | - Puja C Yavagal
- Department of Public Health Dentistry, Bapuji Dental College and Hospital, Davangere, Karnataka, India
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Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021; 14:S94-S100. [PMID: 35082474 DOI: 10.5005/jp-journals-10005-1964'||'] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2024] Open
Abstract
AIM AND BACKGROUND This systematic review aimed to investigate the efficacy of laser photobiomodulation (PBM) on the acceleration of orthodontic tooth movement (OTM). REVIEW METHODS The study protocol was registered at PROSPERO (CRD42019121465). An extensive electronic search for randomized control trials and clinical control trials via Medline (via PubMed), The Cochrane Controlled Clinical Trials Register, and Scopus up to date 24/02/2019 was done. Hand searching was performed for relevant journals. Reference articles were retrieved and exported to Mendeley Desktop 1.13.3 software. The risk of bias was assessed using the Cochrane risk of the bias assessment tool. Articles were further analyzed using Revman5.3 software. RESULTS A total of 14 articles were considered for systematic review and 9 articles were considered for meta-analysis. The results of the meta-analysis showed a significant difference between the laser group and conventional orthodontic treatment with Forest plots showing more tooth movement in the laser group compared to the control group in 2-3 months (mean difference = 1.73; CI: 0.9-2.57; p = 0.00001; I 2 = 89 %). CONCLUSION Although the analysis of the results shows that laser PBM favors OTM, the results are inconclusive as the heterogeneity across studies was high. CLINICAL SIGNIFICANCE Laser PBM may be considered as novel, safe, and noninvasive adjuvant therapy for the acceleration of OTM in children. HOW TO CITE THIS ARTICLE Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021;14(S-1):S94-S100.
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Affiliation(s)
- Chandrashekar M Yavagal
- Department of Pediatric Dentistry, Maratha Mandal's Nathajirao G. Halgekar Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India
| | - Sucheta P Matondkar
- Private Practitioner, Happy Teeth Pediatric and Family Dentistry, Belgaum, Karnataka, India
| | - Puja C Yavagal
- Department of Public Health Dentistry, Bapuji Dental College and Hospital, Davangere, Karnataka, India
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Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021; 14:S94-S100. [PMID: 35082474 DOI: 10.5005/jp-journals-10005-1964����%2527%2522\'\"] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2024] Open
Abstract
AIM AND BACKGROUND This systematic review aimed to investigate the efficacy of laser photobiomodulation (PBM) on the acceleration of orthodontic tooth movement (OTM). REVIEW METHODS The study protocol was registered at PROSPERO (CRD42019121465). An extensive electronic search for randomized control trials and clinical control trials via Medline (via PubMed), The Cochrane Controlled Clinical Trials Register, and Scopus up to date 24/02/2019 was done. Hand searching was performed for relevant journals. Reference articles were retrieved and exported to Mendeley Desktop 1.13.3 software. The risk of bias was assessed using the Cochrane risk of the bias assessment tool. Articles were further analyzed using Revman5.3 software. RESULTS A total of 14 articles were considered for systematic review and 9 articles were considered for meta-analysis. The results of the meta-analysis showed a significant difference between the laser group and conventional orthodontic treatment with Forest plots showing more tooth movement in the laser group compared to the control group in 2-3 months (mean difference = 1.73; CI: 0.9-2.57; p = 0.00001; I 2 = 89 %). CONCLUSION Although the analysis of the results shows that laser PBM favors OTM, the results are inconclusive as the heterogeneity across studies was high. CLINICAL SIGNIFICANCE Laser PBM may be considered as novel, safe, and noninvasive adjuvant therapy for the acceleration of OTM in children. HOW TO CITE THIS ARTICLE Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021;14(S-1):S94-S100.
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Affiliation(s)
- Chandrashekar M Yavagal
- Department of Pediatric Dentistry, Maratha Mandal's Nathajirao G. Halgekar Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India
| | - Sucheta P Matondkar
- Private Practitioner, Happy Teeth Pediatric and Family Dentistry, Belgaum, Karnataka, India
| | - Puja C Yavagal
- Department of Public Health Dentistry, Bapuji Dental College and Hospital, Davangere, Karnataka, India
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Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021; 14:S94-S100. [PMID: 35082474 DOI: 10.5005/jp-journals-10005-1964' and 2*3*8=6*8 and 'k95b'='k95b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2024] Open
Abstract
AIM AND BACKGROUND This systematic review aimed to investigate the efficacy of laser photobiomodulation (PBM) on the acceleration of orthodontic tooth movement (OTM). REVIEW METHODS The study protocol was registered at PROSPERO (CRD42019121465). An extensive electronic search for randomized control trials and clinical control trials via Medline (via PubMed), The Cochrane Controlled Clinical Trials Register, and Scopus up to date 24/02/2019 was done. Hand searching was performed for relevant journals. Reference articles were retrieved and exported to Mendeley Desktop 1.13.3 software. The risk of bias was assessed using the Cochrane risk of the bias assessment tool. Articles were further analyzed using Revman5.3 software. RESULTS A total of 14 articles were considered for systematic review and 9 articles were considered for meta-analysis. The results of the meta-analysis showed a significant difference between the laser group and conventional orthodontic treatment with Forest plots showing more tooth movement in the laser group compared to the control group in 2-3 months (mean difference = 1.73; CI: 0.9-2.57; p = 0.00001; I 2 = 89 %). CONCLUSION Although the analysis of the results shows that laser PBM favors OTM, the results are inconclusive as the heterogeneity across studies was high. CLINICAL SIGNIFICANCE Laser PBM may be considered as novel, safe, and noninvasive adjuvant therapy for the acceleration of OTM in children. HOW TO CITE THIS ARTICLE Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021;14(S-1):S94-S100.
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Affiliation(s)
- Chandrashekar M Yavagal
- Department of Pediatric Dentistry, Maratha Mandal's Nathajirao G. Halgekar Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India
| | - Sucheta P Matondkar
- Private Practitioner, Happy Teeth Pediatric and Family Dentistry, Belgaum, Karnataka, India
| | - Puja C Yavagal
- Department of Public Health Dentistry, Bapuji Dental College and Hospital, Davangere, Karnataka, India
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Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021; 14:S94-S100. [PMID: 35082474 DOI: 10.5005/jp-journals-10005-1964'"] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2024] Open
Abstract
AIM AND BACKGROUND This systematic review aimed to investigate the efficacy of laser photobiomodulation (PBM) on the acceleration of orthodontic tooth movement (OTM). REVIEW METHODS The study protocol was registered at PROSPERO (CRD42019121465). An extensive electronic search for randomized control trials and clinical control trials via Medline (via PubMed), The Cochrane Controlled Clinical Trials Register, and Scopus up to date 24/02/2019 was done. Hand searching was performed for relevant journals. Reference articles were retrieved and exported to Mendeley Desktop 1.13.3 software. The risk of bias was assessed using the Cochrane risk of the bias assessment tool. Articles were further analyzed using Revman5.3 software. RESULTS A total of 14 articles were considered for systematic review and 9 articles were considered for meta-analysis. The results of the meta-analysis showed a significant difference between the laser group and conventional orthodontic treatment with Forest plots showing more tooth movement in the laser group compared to the control group in 2-3 months (mean difference = 1.73; CI: 0.9-2.57; p = 0.00001; I 2 = 89 %). CONCLUSION Although the analysis of the results shows that laser PBM favors OTM, the results are inconclusive as the heterogeneity across studies was high. CLINICAL SIGNIFICANCE Laser PBM may be considered as novel, safe, and noninvasive adjuvant therapy for the acceleration of OTM in children. HOW TO CITE THIS ARTICLE Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021;14(S-1):S94-S100.
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Affiliation(s)
- Chandrashekar M Yavagal
- Department of Pediatric Dentistry, Maratha Mandal's Nathajirao G. Halgekar Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India
| | - Sucheta P Matondkar
- Private Practitioner, Happy Teeth Pediatric and Family Dentistry, Belgaum, Karnataka, India
| | - Puja C Yavagal
- Department of Public Health Dentistry, Bapuji Dental College and Hospital, Davangere, Karnataka, India
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Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021; 14:S94-S100. [PMID: 35082474 DOI: 10.5005/jp-journals-10005-1964" and 2*3*8=6*8 and "bhyr"="bhyr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2024] Open
Abstract
AIM AND BACKGROUND This systematic review aimed to investigate the efficacy of laser photobiomodulation (PBM) on the acceleration of orthodontic tooth movement (OTM). REVIEW METHODS The study protocol was registered at PROSPERO (CRD42019121465). An extensive electronic search for randomized control trials and clinical control trials via Medline (via PubMed), The Cochrane Controlled Clinical Trials Register, and Scopus up to date 24/02/2019 was done. Hand searching was performed for relevant journals. Reference articles were retrieved and exported to Mendeley Desktop 1.13.3 software. The risk of bias was assessed using the Cochrane risk of the bias assessment tool. Articles were further analyzed using Revman5.3 software. RESULTS A total of 14 articles were considered for systematic review and 9 articles were considered for meta-analysis. The results of the meta-analysis showed a significant difference between the laser group and conventional orthodontic treatment with Forest plots showing more tooth movement in the laser group compared to the control group in 2-3 months (mean difference = 1.73; CI: 0.9-2.57; p = 0.00001; I 2 = 89 %). CONCLUSION Although the analysis of the results shows that laser PBM favors OTM, the results are inconclusive as the heterogeneity across studies was high. CLINICAL SIGNIFICANCE Laser PBM may be considered as novel, safe, and noninvasive adjuvant therapy for the acceleration of OTM in children. HOW TO CITE THIS ARTICLE Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021;14(S-1):S94-S100.
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Affiliation(s)
- Chandrashekar M Yavagal
- Department of Pediatric Dentistry, Maratha Mandal's Nathajirao G. Halgekar Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India
| | - Sucheta P Matondkar
- Private Practitioner, Happy Teeth Pediatric and Family Dentistry, Belgaum, Karnataka, India
| | - Puja C Yavagal
- Department of Public Health Dentistry, Bapuji Dental College and Hospital, Davangere, Karnataka, India
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Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021; 14:S94-S100. [PMID: 35082474 DOI: 10.5005/jp-journals-10005-1964%' and 2*3*8=6*8 and 'vowf'!='vowf%] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2024] Open
Abstract
AIM AND BACKGROUND This systematic review aimed to investigate the efficacy of laser photobiomodulation (PBM) on the acceleration of orthodontic tooth movement (OTM). REVIEW METHODS The study protocol was registered at PROSPERO (CRD42019121465). An extensive electronic search for randomized control trials and clinical control trials via Medline (via PubMed), The Cochrane Controlled Clinical Trials Register, and Scopus up to date 24/02/2019 was done. Hand searching was performed for relevant journals. Reference articles were retrieved and exported to Mendeley Desktop 1.13.3 software. The risk of bias was assessed using the Cochrane risk of the bias assessment tool. Articles were further analyzed using Revman5.3 software. RESULTS A total of 14 articles were considered for systematic review and 9 articles were considered for meta-analysis. The results of the meta-analysis showed a significant difference between the laser group and conventional orthodontic treatment with Forest plots showing more tooth movement in the laser group compared to the control group in 2-3 months (mean difference = 1.73; CI: 0.9-2.57; p = 0.00001; I 2 = 89 %). CONCLUSION Although the analysis of the results shows that laser PBM favors OTM, the results are inconclusive as the heterogeneity across studies was high. CLINICAL SIGNIFICANCE Laser PBM may be considered as novel, safe, and noninvasive adjuvant therapy for the acceleration of OTM in children. HOW TO CITE THIS ARTICLE Yavagal CM, Matondkar SP, Yavagal PC. Efficacy of Laser Photobiomodulation in Accelerating Orthodontic Tooth Movement in Children: A Systematic Review with Meta-analysis. Int J Clin Pediatr Dent 2021;14(S-1):S94-S100.
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Affiliation(s)
- Chandrashekar M Yavagal
- Department of Pediatric Dentistry, Maratha Mandal's Nathajirao G. Halgekar Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India
| | - Sucheta P Matondkar
- Private Practitioner, Happy Teeth Pediatric and Family Dentistry, Belgaum, Karnataka, India
| | - Puja C Yavagal
- Department of Public Health Dentistry, Bapuji Dental College and Hospital, Davangere, Karnataka, India
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Dalpiaz A, Kuriki HU, Barbosa RAP, Diefenthaeler F, Marcolino AM, Barbosa RI. Dry Needling and Photobiomodulation Decreases Myofascial Pain in Trapezius of Women: Randomized Blind Clinical Trial. J Manipulative Physiol Ther 2020; 44:61-71. [PMID: 33248747 DOI: 10.1016/j.jmpt.2020.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 05/22/2020] [Accepted: 07/01/2020] [Indexed: 12/01/2022]
Abstract
OBJECTIVE The purpose of this study was to assess whether dry needling (DN) added to photobiomodulation (PBM) has effects on the treatment of active myofascial trigger points in the upper trapezius. METHODS This study was a randomized clinical trial, with 43 participants divided into 3 groups: DN and PBM (DNP), DN, and DN outside of the trigger point (DNout). Each group received 1 session of DN followed by PBM therapy with the machine turned on or off. Pain, disability, pain pressure threshold, and muscle activity were assessed before the intervention and afterward at intervals of 10 minutes, 30 minutes, 1 week, and 1 month. RESULTS Pain decreased after intervention in the DNP and DNout groups, with mean differences, respectively, of 1.33 cm (95% confidence interval [CI], 0.019-2.647) and 2.78 cm (95% CI, 1.170-2.973). Scores for the disability questionnaire decreased in all groups after intervention (F = 36.53, P < .0001) after the intervention, with mean differences of 3.8 points in the DNP group (95% CI, 1.082-5.518), 3.57 in the DN group (95% CI, 0.994-6.149), and 5.43 in the DNout group (95% CI, 3.101-7.756). There were no significant differences between or within groups in pain pressure threshold (F = 2.14, P = .139), with mean differences after 30 minutes of 0.139 kgf for the DNP group (95% CI, -0.343 to 0.622), 0.273 for the DN group (95% CI, -0.661 to 1.209), and -0.07 for the DNout group (95% CI, -0.465 to 0.324). Muscle activation for the DN group increased 8.49% after the intervention, where for the DNP group it decreased 11.5%, with a significant difference between groups. CONCLUSION DN added to PBM presented similar results compared to DNout and DN. In this sample, the effects of the application of DN outside of the trigger point had better effects on pain and disability scores than DN applied directly on the trigger point.
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Affiliation(s)
- Ameg Dalpiaz
- Center of Sciences, Technologies and Health, Federal University of Santa Catarina, Araranguá, Santa Catarina, Brazil
| | - Heloyse Uliam Kuriki
- Center of Sciences, Technologies and Health, Federal University of Santa Catarina, Araranguá, Santa Catarina, Brazil
| | - Renan Andrade Pereira Barbosa
- Center of Sciences, Technologies and Health, Federal University of Santa Catarina, Araranguá, Santa Catarina, Brazil
| | - Fernando Diefenthaeler
- Center of Sciences, Technologies and Health, Federal University of Santa Catarina, Araranguá, Santa Catarina, Brazil
| | - Alexandre Marcio Marcolino
- Center of Sciences, Technologies and Health, Federal University of Santa Catarina, Araranguá, Santa Catarina, Brazil
| | - Rafael Inacio Barbosa
- Center of Sciences, Technologies and Health, Federal University of Santa Catarina, Araranguá, Santa Catarina, Brazil.
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Shuaib A, Bourisly AK. Effects of Irradiation Parameters and Position on Photobiomodulation Therapy for Spinal Cord Injury Rat Phantom Model: A Dosimetry Simulation Study. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2020; 38:661-666. [DOI: 10.1089/photob.2020.4864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ali Shuaib
- Biomedical Engineering Unit, Department of Physiology, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Ali K. Bourisly
- Biomedical Engineering Unit, Department of Physiology, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
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Photobiomodulation Dose Parameters in Dentistry: A Systematic Review and Meta-Analysis. Dent J (Basel) 2020; 8:dj8040114. [PMID: 33036145 PMCID: PMC7711492 DOI: 10.3390/dj8040114] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/20/2020] [Accepted: 09/29/2020] [Indexed: 01/11/2023] Open
Abstract
Objective: This systematic review and meta-analysis of published randomized controlled trials examines a possible relationship between optical spot size at surface tissue, irradiance, radiant exposure, total energy delivered, operator technique and reported clinical outcomes. Background: Clinical photobiomodulation (PBM) therapy has achieved a high level of evidence-based acceptance in the mitigation of oral mucositis associated with cancer radiotherapy and chemotherapy, and supportive clinical research in relation to orthodontic tooth movement, oral medical conditions, including burning mouth syndrome, xerostomia and lichen planus. Inconsistent outcomes have been reported not withstanding a substantial body of primary supportive research from clinical, in vitro and animal studies. Materials and Methods: PubMed, Cochrane Database of Reviews and Google Scholar search engines were applied to identify human clinical trials of PBM therapy in clinical dentistry. A total of 766 articles between February 2009 and June 2020 were identified and following a full text evaluation, 38 papers with sufficient data to permit analyses are included in this investigation. Results: Following a detailed assessment of potential factors that may have an influence in clinical outcome, a clear trend is apparent associating optical spot size to a positive or negative effect. Furthermore, there is a clear difference in the reported results in relation to total energy applied, delivery techniques and optical parameters, which merits further investigation. Factorial statistical analyses identified an association between smaller optical surface applications and an overall lower level of reported clinical success in treating superficial and deeper targets, and correspondingly sub-surface larger target tissues were found to be more responsive to therapy by use of a larger optical surface spot size. Moreover, use of multiple small diameter probe applications was found to provide inconsistent results. Conclusions: Many factors can confound clinical success including variations in anatomy, site location, clinical condition and subject individuality. To achieve higher levels of predictable outcome, a mature appreciation of these factors, plus an expanded understanding of laser parametry, tissue volume and target depth to deliver an adequate dose within current recommended guidelines, is essential.
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Kampa N, Jitpean S, Seesupa S, Hoisang S. Penetration depth study of 830 nm low-intensity laser therapy on living dog tissue. Vet World 2020; 13:1417-1422. [PMID: 32848319 PMCID: PMC7429387 DOI: 10.14202/vetworld.2020.1417-1422] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 05/29/2020] [Indexed: 01/17/2023] Open
Abstract
Background and Aim Recent studies have shown that low-intensity laser therapy (LILT) enhances chronic wound healing, reduces pain, reduces inflammation, and improves post-operative rehabilitation. However, clinical outcomes in the veterinary use of LILT vary between different experimental studies. This is explained by improper laser parameter settings and limits of its penetration depth. This study aimed to investigate the penetration depth of 830 nm LILT on living dog tissue in different operating modes. This entailed continuous wave (CW) versus pulse wave (PW) and with contact versus non-contact techniques of the laser probe at different tissue-laser probe distances. The results can be applied for use in clinical practice. Materials and Methods Twenty-four dogs that had undergone abdominal surgery were included in this study. The laser parameters were set at 200 mW, fluence of 4 J/cm2 and the laser power output denoted as mean output power (MOP) was measured by a power meter. Results The MOP of the 830 nm CW laser was significantly higher than the PW laser (p<0.05). The MOP of the contact technique was significantly greater than that of the non-contact technique in both CW and PW modes (p<0.05). The MOP through the skin tissue was between 16.09 and 18.60 mW (8.05-9.30%) for the contact technique and 8.73 and 19.36 mW (4.37-9.68%) for the non-contact technique. In the muscle-skin layer, the MOP was between 0.50 and 1.56 mW (0.25-0.78%) and the MOP was not detected using the non-contact technique with a 5 cm tissue-laser probe distance. Conclusion Our study indicates that 830 nm LILT (with laser parameter setting at 200 mW, fluence of 4 J/cm2 for both contact and non-contact techniques, and tissue-laser probe distance up to 5 cm) was appropriate for treatments within 14 mm of depth. However, the use of 830 nm LILT for an application in which the target tissue is deeper than 14 mm may limit its positive effect.
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Affiliation(s)
- Naruepon Kampa
- Division of Surgery, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Supranee Jitpean
- Division of Surgery, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Suvalak Seesupa
- Division of Surgery, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Somphong Hoisang
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
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Galo IDC, Lima BED, Santos TG, Braoios A, Prado RP, Santos WGD. Staphylococcus aureus growth delay after exposure to low fluencies of blue light (470 nm). BRAZ J BIOL 2020; 81:370-376. [PMID: 32490986 DOI: 10.1590/1519-6984.226473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/09/2019] [Indexed: 11/22/2022] Open
Abstract
Antibiotic resistance is one of the greatest challenges to treat bacterial infections worldwide, leading to increase in medical expenses, prolonged hospital stay and increased mortality. The use of blue light has been suggested as an innovative alternative to overcome this problem. In this study we analyzed the antibacterial effect of blue light using low emission parameters on Staphylococcus aureus cultures. In vitro bacterial cultures were used in two experimental approaches. The first approach included single or fractionated blue light application provided by LED emitters (470 nm), with the following fluencies: 16.29, 27.16 and 54.32 J/cm2. For the second approach a power LED (470 nm) was used to deliver 54.32 J/cm2 fractionated in 3 applications. Our results demonstrated that bacterial cultures exposed to fractionated blue light radiation exhibited significantly smaller sizes colonies than the control group after 24 h incubation, however the affected bacteria were able to adapt and continue to proliferate after prolonged incubation time. We could conclude that the hypothetical clinical use of low fluencies of blue light as an antibacterial treatment is risky, since its action is not definitive and proves to be ineffective at least for the strain used in this study.
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Affiliation(s)
- I D C Galo
- Unidade Acadêmica Especial de Ciências da Saúde, Programa de Pós-graduação em Ciências Aplicadas à Saúde, Universidade Federal de Goiás - UFG, Regional Jataí, Câmpus Jatobá, Cidade Universitária, BR 364, Km 195, 3800, CEP 75801-615, Jataí, GO, Brasil
| | - B E De Lima
- Unidade Acadêmica Especial de Ciências da Saúde, Programa de Pós-graduação em Ciências Aplicadas à Saúde, Universidade Federal de Goiás - UFG, Regional Jataí, Câmpus Jatobá, Cidade Universitária, BR 364, Km 195, 3800, CEP 75801-615, Jataí, GO, Brasil
| | - T G Santos
- Unidade Acadêmica Especial de Ciências da Saúde, Programa de Pós-graduação em Ciências Aplicadas à Saúde, Universidade Federal de Goiás - UFG, Regional Jataí, Câmpus Jatobá, Cidade Universitária, BR 364, Km 195, 3800, CEP 75801-615, Jataí, GO, Brasil
| | - A Braoios
- Unidade Acadêmica Especial de Ciências da Saúde, Programa de Pós-graduação em Ciências Aplicadas à Saúde, Universidade Federal de Goiás - UFG, Regional Jataí, Câmpus Jatobá, Cidade Universitária, BR 364, Km 195, 3800, CEP 75801-615, Jataí, GO, Brasil
| | - R P Prado
- Departamento de Medicina, Universidade Federal de Goiás - UFG, Regional Catalão, Campus II, Av. Castelo Branco, s/n, Setor Universitário, CEP 75704-020, Catalão, GO, Brasil
| | - W G Dos Santos
- Unidade Acadêmica Especial de Ciências da Saúde, Programa de Pós-graduação em Ciências Aplicadas à Saúde, Universidade Federal de Goiás - UFG, Regional Jataí, Câmpus Jatobá, Cidade Universitária, BR 364, Km 195, 3800, CEP 75801-615, Jataí, GO, Brasil
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Robijns J, Lodewijckx J, Bensadoun RJ, Mebis J. A Narrative Review on the Use of Photobiomodulation Therapy for the Prevention and Management of Acute Radiodermatitis: Proposed Mechanisms, Current Clinical Outcomes, and Preliminary Guidance for Clinical Studies. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2020; 38:332-339. [DOI: 10.1089/photob.2019.4761] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Jolien Robijns
- Faculty of Medicine and Life Sciences, Limburg Clinical Research Center, Hasselt University, Hasselt, Belgium
| | - Joy Lodewijckx
- Faculty of Medicine and Life Sciences, Limburg Clinical Research Center, Hasselt University, Hasselt, Belgium
| | | | - Jeroen Mebis
- Faculty of Medicine and Life Sciences, Limburg Clinical Research Center, Hasselt University, Hasselt, Belgium
- Limburg Oncology Center, Jessa Hospital, Hasselt, Belgium
- Division of Medical Oncology, Jessa Hospital, Hasselt, Belgium
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Incerti Parenti S, Tschon M, Sartori M, Visani A, Aroni E, Fini M, Alessandri-Bonetti G. Evidence from systematic reviews on photobiomodulation of human bone and stromal cells: Where do we stand? Arch Biochem Biophys 2020; 685:108333. [PMID: 32194044 DOI: 10.1016/j.abb.2020.108333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 02/17/2020] [Accepted: 03/10/2020] [Indexed: 01/08/2023]
Abstract
This study summarizes the available evidence from systematic reviews on the in vitro effects of photobiomodulation on the proliferation and differentiation of human bone and stromal cells by appraising their methodological quality. Improvements for future studies are also highlighted, with particular emphasis on in vitro protocols and cell-related characteristics. Six reviews using explicit eligibility criteria and methods selected in order to minimize bias were included. There was no compelling evidence on the cellular mechanisms of action or treatment parameters of photobiomodulation; compliance with quality assessment was poor. A rigorous description of laser parameters (wavelength, power, beam spot size, power density, energy density, repetition rate, pulse duration or duty cycle, exposure duration, frequency of treatments, and total radiant energy), exposure conditions (methods to ensure a uniform irradiation and to avoid cross-irradiation, laser-cell culture surface distance, lid presence during irradiation) and cell-related characteristics (cell type or line, isolation and culture conditions, donor-related factors where applicable, tissue source, cell phenotype, cell density, number of cell passages in culture) should be included among eligibility criteria for study inclusion. These methodological improvements will maximize the contribution of in vitro studies on the effects of photobiomodulation on human bone and stromal cells to evidence-based translational research.
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Affiliation(s)
- Serena Incerti Parenti
- Unit of Orthodontics, Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Via San Vitale 59, 40125, Bologna, Italy.
| | - Matilde Tschon
- Preclinical and Surgical Studies Laboratory, Rizzoli RIT Department, IRCCS - Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy.
| | - Maria Sartori
- Preclinical and Surgical Studies Laboratory, Rizzoli RIT Department, IRCCS - Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy.
| | - Andrea Visani
- Laboratory of Biomechanics and Technology Innovation, Rizzoli RIT Department, IRCCS - Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy.
| | - Elena Aroni
- Unit of Orthodontics, Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Via San Vitale 59, 40125, Bologna, Italy.
| | - Milena Fini
- Preclinical and Surgical Studies Laboratory, Rizzoli RIT Department, IRCCS - Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy.
| | - Giulio Alessandri-Bonetti
- Unit of Orthodontics, Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Via San Vitale 59, 40125, Bologna, Italy.
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Vitor LLR, Bergamo MTOP, Lourenço-Neto N, Sakai VT, Oliveira RC, Cruvinel T, Rios D, Garlet GP, Santos CF, Machado MAAM, Oliveira TM. Photobiomodulation effect on angiogenic proteins produced and released by dental pulp cells. Clin Oral Investig 2020; 24:4343-4354. [PMID: 32333178 DOI: 10.1007/s00784-020-03298-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 04/17/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To verify the photobiomodulation effect on angiogenic proteins produced and released by dental human pulpal fibroblasts (HPFs). MATERIAL AND METHODS HPFs were irradiated with 660-nm low-level laser at fluences of 2.5 J/cm2 and 3.7 J/cm2. The control group was not irradiated. MTT, crystal violet, and ELISA assays respectively verified viability, proliferation, and angiogenic protein (supernatant/lysate) at 6 h, 12 h, and 24 h after photobiomodulation. Capillary-like structure formation assay verified functional role. Two-way ANOVA/Tukey's test and ANOVA/Bonferroni's multiple comparisons test respectively verified cell viability/proliferation and intragroup and intergroup comparisons of protein synthesis (p < 0.05). RESULTS Irradiated and non-irradiated HPFs showed statistically similar cell viability and proliferation pattern. Intragroup comparisons showed similar patterns of protein synthesis for all groups: VEGF-A, VEGF-C, and vascular endothelial growth factor receptor 1 (VEGFR1) increased significantly in the supernatant, while FGF-2 and VEGF-A increased significantly in the lysate. The lower fluence significantly increased BMP-9 (6 h) in the supernatant and VEGFR1 (6 h and 12 h) and VEGF-D (24 h) in the lysate, while the higher fluence significantly increased BMP-9 (6 h) in the supernatant and VEGFR1 (12 h) in the lysate. Regardless of the time, both fluences statistically downregulated placental growth factor (PLGF) and PDGF secretion. Both fluences statistically decreased VEGF-A secretion (24 h) and PLGF production (6 h). CONCLUSION Photobiomodulation produced stimulatory effects on angiogenic protein secretion by pulp fibroblasts. In terms of photobiomodulation, over time, both fluences significantly increased the secretion of VEGF-A, VEGF-C, and VEGFR1 and significantly upregulated BMP-9 (6 h) in the supernatant; for capillary-like structure formation, the fluence of 2.5 J/cm2 was better than the fluence of 3.7 J/cm2. CLINICAL RELEVANCE This study results addressed effective photobiomodulation parameters tailored for pulp angiogenesis.
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Affiliation(s)
- Luciana Lourenço Ribeiro Vitor
- Department of Pediatric Dentistry, University of Sacred Heart, Rua Irmã Arminda, 10-50, Bauru, São Paulo, 17011-160, Brazil.
| | | | - Natalino Lourenço-Neto
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Vivien Thiemy Sakai
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
| | - Rodrigo Cardoso Oliveira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Thiago Cruvinel
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Daniela Rios
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Gustavo Pompermaier Garlet
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Carlos Ferreira Santos
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | | | - Thais Marchini Oliveira
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
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Bikmulina PY, Kosheleva NV, Shpichka AI, Efremov YM, Yusupov VI, Timashev PS, Rochev YA. Beyond 2D: effects of photobiomodulation in 3D tissue-like systems. JOURNAL OF BIOMEDICAL OPTICS 2020; 25:1-16. [PMID: 32351077 PMCID: PMC7189416 DOI: 10.1117/1.jbo.25.4.048001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 04/09/2020] [Indexed: 05/02/2023]
Abstract
SIGNIFICANCE Currently, various scaffolds with immobilized cells are widely used in tissue engineering and regenerative medicine. However, the physiological activity and cell viability in such constructs might be impaired due to a lack of oxygen and nutrients. Photobiomodulation (PBM) is a promising method of preconditioning cells to increase their metabolic activity and to activate proliferation or differentiation. AIM Investigation of the potential of PBM for stimulation of cell activities in hydrogels. APPROACH Mesenchymal stromal cells (MSCs) isolated from human gingival mucosa were encapsulated in modified fibrin hydrogels with different thicknesses and concentrations. Constructs with cells were subjected to a single-time exposure to red (630 nm) and near-infrared (IR) (840 nm) low-intensity irradiation. After 3 days of cultivation, the viability and physiological activity of the cells were analyzed using confocal microscopy and a set of classical tests for cytotoxicity. RESULTS The cell viability in fibrin hydrogels depended both on the thickness of the hydrogels and the concentration of gel-forming proteins. The PBM was able to improve cell viability in hydrogels. The most pronounced effect was achieved with near-IR irradiation at the 840-nm wavelength. CONCLUSIONS PBM using near-IR light can be applied for stimulation of MSCs metabolism and proliferation in hydrogel-based constructs with thicknesses up to 3 mm.
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Affiliation(s)
- Polina Y. Bikmulina
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
| | - Nastasia V. Kosheleva
- Lomonosov Moscow State University, Faculty of Biology, Moscow, Russia
- FSBSI “Institute of General Pathology and Pathophysiology,” Moscow, Russia
- FSBEI FPE “Russian Medical Academy of Continuous Professional Education,” Ministry of Healthcare of Russia, Moscow, Russia
| | - Anastasia I. Shpichka
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
- Lomonosov Moscow State University, Chemistry Department, Moscow, Russia
| | - Yuri M. Efremov
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
| | - Vladimir I. Yusupov
- Institute of Photon Technologies of FSRC “Crystallography and Photonics” RAS, Troitsk, Moscow, Russia
| | - Peter S. Timashev
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
- Lomonosov Moscow State University, Chemistry Department, Moscow, Russia
- Institute of Photon Technologies of FSRC “Crystallography and Photonics” RAS, Troitsk, Moscow, Russia
- N.N. Semenov Institute of Chemical Physics, Department of Polymers and Composites, Moscow, Russia
| | - Yury A. Rochev
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
- National University of Ireland, National Centre for Biomedical Engineering Science, Galway, Ireland
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