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Nanayakkara L, Yahaya N, Parreira M, Bajkin B. Dental management of people with complex or rare inherited bleeding disorders. Haemophilia 2024; 30 Suppl 3:128-134. [PMID: 38571337 DOI: 10.1111/hae.15005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/14/2024] [Accepted: 03/14/2024] [Indexed: 04/05/2024]
Abstract
Advances in haematological therapies for people with complex or rare inherited bleeding disorders (IBD) have resulted in them living longer, retaining their natural teeth with greater expectations of function and aesthetics. Dental management strategies need to evolve to meet these challenges. Utilising low level laser diode therapy to reduce pre-operative inflammation to reduce the intraoperative and postoperative burden on haemostasis is described in a case series of 12 patients. For these individuals who previously required further medical management to support haemostasis or experienced such prolonged haemorrhage sufficient to warrant hospital admission, haemostasis was achieved in the dental surgery such that they were able to return home with no further medical intervention or overnight stays. Global inequities in accessing novel treatments for complex or rare IBD necessitates a comprehensive understanding of the local haemostatic agents available to dentists and the most commonly used agents and techniques are described including the use of single tooth anaesthesia (STA). STA is a computerised delivery mechanism that allows routine dental procedures that would previously have required block injections needing factor replacement therapy to be undertaken safely and effectively with no additional haemostatic intervention. The challenges of inhibitors in oral surgery are explained and discussed although more research and evidence is required to establish new treatment protocols. The importance of establishing good dental health in the quality of life of people with complex or rare IBD is highlighted with respect to the dental specific impact that more novel therapies may have on people with IBD.
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Affiliation(s)
- Lochana Nanayakkara
- Department of Restorative Dentistry, Royal London Hospital, BartsHealth NHS Trust, London, UK
- Institute of Dentistry Queen Mary University of London, London, UK
| | - Norjehan Yahaya
- Special Care Dentistry Unit, Department of Oral and Maxillofacial Surgery, Kuala Lumpur Hospital, Ministry of Health, Kuala Lumpur, Malaysia
| | - Miryam Parreira
- Dental Surgery Department, University of Buenos Aires, Buenos Aires, Argentina
- Foundation of Haemophilia, Buenos Aires, Argentina
| | - Branislav Bajkin
- Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
- Dental Clinic of Vojvodina, Novi Sad, Serbia
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Chamani G, Zarei MR, Rad M, Mafi S. Comparison of low-level laser therapy and standard treatment for temporomandibular disorders: An assessment of therapeutic and placebo effects. J Oral Rehabil 2024; 51:657-665. [PMID: 38012102 DOI: 10.1111/joor.13634] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 11/08/2023] [Accepted: 11/20/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Despite extensive research on the use of low-power lasers for TMD treatment, the extent of their effectiveness remains uncertain. OBJECTIVE This study aimed to investigate the therapeutic or placebo effect of LLLT for TMD, and to compare it with standard treatment methods. A unique aspect of this study was the inclusion of a control group that received only standard treatment, allowing for an assessment of the placebo effect of LLLT. METHODS A total of 42 patients with TMD were referred to Kerman Dental School Pain Clinic and were randomly assigned to three groups: group A received LLLT, group B was a placebo group and group C was a control group that received only standard treatment. The laser groups received gallium-aluminium-arsenide laser treatment twice a week for 10 sessions. Patients' jaw movement rate indicators and VAS index were evaluated at the start of treatment, and indicators were re-recorded every week for 5 weeks. SPSS 21 was used for statistical analysis, including ANOVA and Tukey's post hoc tests for inter-group comparisons. The repeated measurement test was used to analyse the data. RESULTS All groups showed significant improvement in VAS indicators (p = .0001), lateral jaw movements (p = .0001), forward jaw movement (p = .007) but not for maximum mouth opening. No significant difference was observed between the groups at the end of the study (p = .000). CONCLUSION Our study provides insights into LLLT's effectiveness for TMD, suggesting it cannot replace standard treatment alone. These findings contribute to the literature and emphasise the importance of including a control group in future studies to assess the placebo effect of LLLT.
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Affiliation(s)
- Goli Chamani
- FAAOP Diplomat, American Board of Orofacial Pain Professor of Oral Medicine and Orofacial Pain Division of Oral Diagnostics and Rehabilitation Department of Dental Medicine, Karolinska Institute Scandinavian Center for Orofacial Neuroscience (SCON) Huddinge, Huddinge, Sweden
| | - Mohammad Reza Zarei
- Oral Medicine Department, Orofacial Pain Clinic, Kerman School of Dentistry, Kerman, Iran
| | - Maryam Rad
- Oral Medicine specialist, PhD by research in Epidemiology, Kerman, Iran
| | - Sahar Mafi
- Department of Oral Medicine, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University of Tehran, Tehran, Iran
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Ketz AK, Anders J, Orina J, Garner B, Hull M, Koreerat N, Sorensen J, Turner C, Johnson J. Photobiomodulation Therapy Plus Usual Care Is Better than Usual Care Alone for Plantar Fasciitis: A Randomized Controlled Trial. Int J Sports Phys Ther 2024; 19:1438-1453. [PMID: 38179590 PMCID: PMC10761604 DOI: 10.26603/001c.90589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 10/30/2023] [Indexed: 01/06/2024] Open
Abstract
Background Plantar fasciitis (PF) results in pain-related disability and excessive healthcare costs. Photobiomodulation therapy (PBMT) has shown promise for decreasing both pain and disability related to PF. Purpose The purpose was to assess the clinical impact of PBMT on pain and function in people with PF. Study Design Prospective, randomized controlled clinical trial. Methods A convenience sample of adults with PF were randomly assigned to one of three groups: (1) usual care, (2) usual care plus nine doses of PBMT with 25W output power over three weeks, or (3) usual care plus nine doses of PBMT with 10W output power over three weeks. Both 10W and 25W PBMT participants received the same total dose (10J/cm2) by utilizing a simple area equation. Pain (with Defense and Veterans Pain Rating Scale) and function (by Foot and Ankle Ability Measure) were measured at baseline, weeks 3, and 6 for all groups, and at 13 and 26 weeks for PBMT groups. Results PBMT groups experienced a reduction in pain over the first three weeks (from an average of 4.5 to 2.8) after which their pain levels remained mostly constant, while the UC group experienced a smaller reduction in pain (from an average of 4 to 3.8). The effects on pain were not different between PBMT groups. PBMT in both treatment groups also improved function more than the UC group, again with the improvement occurring within the first three weeks. Conclusions Pain and function improved during the three weeks of PBMT plus UC and remained stable over the following three weeks. Improvements sustained through six months in the PBMT plus UC groups. Level of Evidence Level II- RCT or Prospective Comparative Study.
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Affiliation(s)
| | - Juanita Anders
- School of Medicine, Department of Anatomy, Physiology, and Genetics Uniformed Services University of the Health Sciences
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Paiewonsky B, Winter M, Hordinsky M, Griffith M, Farah RS. Photobiomodulation and alopecia: a crowdsourced survey study on patient preferences. J COSMET LASER THER 2023; 25:92-94. [PMID: 38011870 DOI: 10.1080/14764172.2023.2284641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 11/13/2023] [Indexed: 11/29/2023]
Abstract
Photobiomodulation is a treatment option for hair loss and is currently FDA cleared for androgenetic alopecia. There are a variety of photobiomodulation devices intended for at-home patient use. However, data examining user preferences is lacking. A social media-based, online survey study was completed to understand patient preferences when selecting a photobiomodulation device. Secondary outcomes examined patient experience with the device. Sixty participants responded to the 21-question survey. The majority of participants had never used a photobiomodulation device (n = 50; 86.2%). Most respondents (n = 40; 67.8%) felt the efficacy of the device was the most important aspect to consider when selecting a photobiomodulation device. Additionally, a majority of participants thought 15 (n = 22; 37.3%) or 20 minutes (n = 17; 28.8%) would be a reasonable treatment duration and would prefer a hand-free device (n = 51; 86.4%). Of the eight participants who had used a photobiomodulation device, only one was dissatisfied with the device and discontinued treatment.
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Affiliation(s)
- Briana Paiewonsky
- University of Minnesota Department of Dermatology, Minneapolis, MN, USA
- Medical, Charles E. Schmidt College of Medicine at Florida Atlantic University, Boca Raton, FL, USA
| | - Margo Winter
- University of Minnesota Department of Dermatology, Minneapolis, MN, USA
- Midwestern University Chicago College of Osteopathic Medicine, Downers Grove, IL, USA
| | - Maria Hordinsky
- University of Minnesota Department of Dermatology, Minneapolis, MN, USA
| | - MacKenzie Griffith
- University of Minnesota Department of Dermatology, Minneapolis, MN, USA
- Rush Medical College, Chicago, IL, USA
| | - Ronda S Farah
- University of Minnesota Department of Dermatology, Minneapolis, MN, USA
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Misra P, Kalsi R, Anand Arora S, Singh KS, Athar S, Saini A. Effect of Low-Level Laser Therapy on Early Wound Healing and Levels of Inflammatory Mediators in Gingival Crevicular Fluid Following Open Flap Debridement. Cureus 2023; 15:e34755. [PMID: 36909061 PMCID: PMC9999105 DOI: 10.7759/cureus.34755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 01/24/2023] [Indexed: 02/11/2023] Open
Abstract
Introduction Low-level laser therapy (LLLT) has a beneficial effect on pain relief and wound healing. This study aims at a clinical evaluation of early wound healing and a biochemical evaluation of inflammatory mediators in gingival crevicular fluid (GCF) following LLLT with an open flap debridement (OFD) in periodontal therapy. Material and methods This randomized controlled trial included 40 chronic periodontitis patients with bilateral attachment loss, pocket depths of 5 mm affecting at least two quadrants, and radiographic evidence of horizontal bone loss. 120 control sites were randomly selected to receive OFD, and contralateral 120 test sites received bio-stimulation with a diode laser (890 nm) after OFD. The wound healing index was recorded at the 1st and 2nd weeks, and clinical parameters such as the plaque index, gingival index, pocket probing depth, clinical attachment level, and GCF inflammatory mediators were evaluated at baseline, 3, and 6 months. Results From the start of the study to 6 months later, there was a statistically significant drop in plaque index, gingival index, probing pocket depth, and gain clinical attachment levels in both groups. However, when the two groups were compared, there were no significant differences at any time intervals. GCF inflammatory mediators tumor necrosis factor (TNF) alpha and matrix metalloproteinases (MMP-8) decrease, and osteoprotegerin (OPG) levels increase in both the test group and control group from baseline to 3 months and 6 months. In intergroup comparisons, there was a statistically significant reduction in the test group as compared to the control group at 6 months. There was a decline in gingival crevicular fluid - interleukin-6 (GCF IL-6) levels from baseline to 3 months and 6 months in both the groups but when analysed statistically, the results were not significant on intergroup and intragroup comparison at any time interval. The Landry Wound Healing Index values in the 1st and 2nd weeks were showing statistically significant improved healing in the test group as compared to the control group. There was significantly better wound healing at sites where a diode laser was used. Conclusion LLLT increases early wound healing after periodontal surgical procedures.
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Affiliation(s)
- Priyanka Misra
- Department of Periodontics, ITS Dental College, Greater Noida, IND
| | - Rupali Kalsi
- Department of Periodontology, Government Institute of Medical Sciences, Noida, IND
| | | | | | - Simoona Athar
- Department of Periodontics, ITS Dental College, Greater Noida, IND
| | - Anchal Saini
- Department of Periodontics, ITS Dental College, Greater Noida, IND
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Zafari J, Jouni FJ, Nikzad F, Esmailnasab S, Javan ZA, Karkehabadi H. Combination of Dental-Capping Agents with Low Level Laser Therapy Promotes Proliferation of Stem Cells from Apical Papilla. Photobiomodul Photomed Laser Surg 2023; 41:3-9. [PMID: 36577035 DOI: 10.1089/photob.2022.0072] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Background: Direct pulp capping is a vital pulp therapy, which stimulates differentiation of stem cells from apical papilla (SCAPs). SCAPs have multipotential capacity to differentiate into types of cells, contributing to the regeneration of tissues. Objective: Considering the promising effects of dental-capping materials, we aim to investigate the effect of dental dressing materials combined with laser therapy on the percentage of SCAP viability and the consequent dental regeneration capacity. Methods: We collected two immature third molar teeth and isolated SCAPs through collagenase type I enzymatic activity. Isolated SCAPs were then cultured with Dulbecco's modified Eagle's medium and α-minimum essential medium enriched with 15% and 10% fetal bovine serum, respectively. After reaching 70-80% confluency, cells were seeded in a 96-well plate and then treated with mineral trioxide aggregate (MTA), enamel matrix derivative (EMD), biodentine, and low level laser therapy (LLLT) alone and in combination for 24, 48, and 168 h. After that, cell survival rate was assessed using (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) (MTT) assay. Results: We found that combination of MTA, EMD, and LLLT as well as that of biodentine, EMD, and LLLT could lead to significant increase of SCAP viability as compared with other treatment groups. Combination of MTA and biodentine with EMD could also show increased level of SCAP proliferation and viability. However, MTA and biodentine alone reduced SCAP survival rate in all time points. Conclusions: Our conclusion is that LLLT can serve as an enhancer of SCAP proliferation and differentiation rate when added to dental-capping agents such as MTA, EMD, and biodentine. Thus, LLLT combination with effective capping materials will serve as a promising option for dental tissue repair.
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Affiliation(s)
- Jaber Zafari
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Fatemeh Javani Jouni
- Department of Biochemistry and Biophysics, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Forough Nikzad
- Department of Endodontics, Dental School, Hamadan University of Medical Science, Hamadan, Iran
| | - Sogand Esmailnasab
- Department of Endodontics, Dental School, Hamadan University of Medical Science, Hamadan, Iran
| | - Zahra Abbasi Javan
- Department of Endodontics, Dental School, Hamadan University of Medical Science, Hamadan, Iran
| | - Hamed Karkehabadi
- Department of Endodontics, Dental School, Hamadan University of Medical Science, Hamadan, Iran
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7
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Selcuk Yilmaz S, Ayhan FF. The Randomized Controlled Study of Low-Level Laser Therapy, Kinesio-Taping and Manual Lymphatic Drainage in Patients With Stage II Breast Cancer-Related Lymphedema. Eur J Breast Health 2023; 19:34-44. [PMID: 36605467 PMCID: PMC9806938 DOI: 10.4274/ejbh.galenos.2022.2022-6-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 09/17/2022] [Indexed: 12/28/2022]
Abstract
Objective To compare the effects of low-level laser therapy, kinesio-taping and manual lymphatic drainage (MLD) on the affected arm volume, quality of life, arm function, neuropathic pain and shoulder mobility in patients with stage II breast cancer-related lymphedema. Materials and Methods Forty-five breast cancer patients with stage II lymphedema were included. The patients were randomized to three groups and treated with MLD, kinesio-taping or low-level laser therapy. After these different therapeutic modalities, all patients received multilayer compression bandaging, lymphedema remedial exercises, skin care, and a patient education program by the same lymphedema therapist. All treatments were applied 5-days a week for three weeks. The lymphedema compression garments were prescribed to all patients and follow-up visits were planned at the end of the treatment, and at four and 12 weeks. The efficacy of the treatments was evaluated by volumetric calculations based on circumferential measurements using the formula for a truncated cone, in addition to goniometric assessments for shoulder joint ROM, and questionnaires: Quick-disability of arm, shoulder and hand for arm disability; pain-detect for neuropathic pain; and quality of life for arm lymphedema (LYMQOL-arm). Results The baseline patient and disease characteristics, and outcome measures were similar between groups. All treatment modalities were found to be effective in decreasing arm volume, and improving quality of life, upper extremity disability and neuropathic pain. The percentage of decreased arm volume or treatment success was better in kinesio-taping group than in the MLD group at the end of the treatment, and at four and 12 weeks after treatment (p = 0.009, p = 0.039, and p = 0.042, respectively). Conclusion Kinesio-taping led to better results than MLD and was similarly effective compared with low-level laser in stage II breast cancer-related lymphedema at the twelfth week of follow-up. Kinesio-taping and low-level laser should be considered as alternative treatments in early-moderate stages of lymphedema. After these modalities, multi-layer compression and compression bandaging remain cornerstones of lymphedema treatment.
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Affiliation(s)
- Sedef Selcuk Yilmaz
- Department of Physical Medicine and Rehabilitation, Ankara Mamak State Hospital, Ministry of Health, Ankara, Turkey,* Address for Correspondence: E-mail:
| | - Fikriye Figen Ayhan
- Department of Physical Medicine and Rehabilitation, Medicana International Ankara Hospital, Atilim University Faculty of Medicine, Ankara, Turkey
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8
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Greben AI, Eremin PS, Kostromina EY, Markov PA, Greben TN, Gilmutdinova IR, Konchugova TV. [ Low level laser therapy: molecular mechanisms of anti-inflammatory and regenerative effects]. Vopr Kurortol Fizioter Lech Fiz Kult 2023; 100:61-68. [PMID: 37141524 DOI: 10.17116/kurort202310002161] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Laser therapy as a physiotherapeutic method has been successfully used for a long time in the treatment of various pathologies, but the action mechanisms of low level laser therapy (LLLT) remain understudied. OBJECTIVE To perform the analysis of published results of LLLT investigations, to describe the physical principles of photobiomodulation, its action mechanisms on various cells and tissues, therapeutic intervention and efficiency of the technique. MATERIAL AND METHODS The search of articles was done for the period from 2014 to 2022. The preference was given to the articles for the last 5 years in the PubMed database depending on keywords: low level laser therapy, photobiomodulation, exosomes, monocytes, macrophages. RESULTS AND DISCUSSION This article represents the current conceptions about the action mechanisms and reproduced effects of low level laser therapy, the photobiomodulation influence on the inflammation and reparative processes in human body by intervention on cells and their signal pathways. The discussion of research results and probable causes of conflicting data are performed, as well as the efficacy assessment of laser irradiation in different conditions and diseases is made. CONCLUSION Laser therapy has certain variety of advantages, among which: non-invasiveness and availability, long-term service of equipment, stable intensity of light radiation and the ability to use in various wavelength ranges. The technique efficacy was proven for a large number of diseases. However, for the successful application of photobiomodulation in clinical practice in current evidence-based medicine, additional investigations are necessary to determine the best dosimetric radiation parameters, as well as further study of action mechanisms on various human cells and tissues.
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Affiliation(s)
- A I Greben
- National Medical Research Center for Rehabilitation and Balneology, Moscow, Russia
- N.I. Pirogov Russian National Research Medical University, Moscow, Russia
| | - P S Eremin
- National Medical Research Center for Rehabilitation and Balneology, Moscow, Russia
| | - E Yu Kostromina
- National Medical Research Center for Rehabilitation and Balneology, Moscow, Russia
| | - P A Markov
- National Medical Research Center for Rehabilitation and Balneology, Moscow, Russia
| | - T N Greben
- National Medical Research Center for Rehabilitation and Balneology, Moscow, Russia
| | - I R Gilmutdinova
- National Medical Research Center for Rehabilitation and Balneology, Moscow, Russia
| | - T V Konchugova
- National Medical Research Center for Rehabilitation and Balneology, Moscow, Russia
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da Cruz Tobelem D, Silva T, Araujo T, Andreo L, Malavazzi TCDS, Horliana ACRT, Fernandes KPS, Bussadori SK, Mesquita-Ferrari RA. Effects of photobiomodulation in experimental spinal cord injury models: A systematic review. J Biophotonics 2022; 15:e202200059. [PMID: 35484784 DOI: 10.1002/jbio.202200059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/24/2022] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
This systematic review investigated the repercussions of photobiomodulation using low-level laser therapy (LLLT) for the treatment of spinal cord injury (SCI) in experimental models. Studies were identified from relevant databases published between January 2009 and December 2021. Nineteen original articles were selected and 68.4% used light at an infrared wavelength. There was a considerable variation of the power used (from 25 to 200 mW), total application time (8-3000 s) and total energy (0.3-450 J). In 79% of the studies, irradiation was initiated immediately after or within 2 h of the SCI, and treatment time ranged continuously from 5 to 21 days. In conclusion, LLLT can be an auxiliary therapy in the treatment of SCI, playing a neuroprotective role, enabling functional recovery, increasing the concentration of nerve connections around the injury site and reducing pro-inflammatory cytokines. However, there is a need for standardization in the dosimetric parameters.
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Affiliation(s)
- Daysi da Cruz Tobelem
- Postgraduate Program in Biophotonics Applied to the Health Sciences, Universidade Nove de Julho (UNINOVE), São Paulo, SP, Brazil
| | - Tamiris Silva
- Postgraduate Program in Rehabilitation Sciences, UNINOVE, São Paulo, SP, Brazil
| | - Tamires Araujo
- Postgraduate Program in Biophotonics Applied to the Health Sciences, Universidade Nove de Julho (UNINOVE), São Paulo, SP, Brazil
| | - Lucas Andreo
- Postgraduate Program in Biophotonics Applied to the Health Sciences, Universidade Nove de Julho (UNINOVE), São Paulo, SP, Brazil
| | | | | | | | - Sandra Kalil Bussadori
- Postgraduate Program in Biophotonics Applied to the Health Sciences, Universidade Nove de Julho (UNINOVE), São Paulo, SP, Brazil
- Postgraduate Program in Rehabilitation Sciences, UNINOVE, São Paulo, SP, Brazil
| | - Raquel Agnelli Mesquita-Ferrari
- Postgraduate Program in Biophotonics Applied to the Health Sciences, Universidade Nove de Julho (UNINOVE), São Paulo, SP, Brazil
- Postgraduate Program in Rehabilitation Sciences, UNINOVE, São Paulo, SP, Brazil
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10
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Uçar G, Şermet Elbay Ü, Elbay M. Effects of low level laser therapy on injection pain and anesthesia efficacy during local anesthesia in children: A randomized clinical trial. Int J Paediatr Dent 2022; 32:576-584. [PMID: 34738278 DOI: 10.1111/ipd.12936] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 10/07/2021] [Accepted: 11/01/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND The use of low level laser therapy (LLLT) to reduce injection pain associated with dental local anesthesia is reported in a limited number of studies in adults, but research on the effects of LLLT in children is needed. AIM This study aimed to evaluate the effects of topical anesthesia + LLLT on injection pain, anesthesia efficacy, and duration in local anesthesia of children who are undergoing pulpotomy treatment. DESIGN The study was conducted as a randomized, controlled-crossover, double-blind clinical trial with 60 children aged 6-9 years. Before local infiltration anesthesia was administered, only topical anesthesia was applied in one side (control group/CG), and topical anesthesia plus LLLT (a diode laser: 810 nm; continuous mode; 0.3W; 20 s; 69 J/cm2 ) was applied in the contralateral side (LG) as pre-anesthesia. The injection pain and anesthesia efficacy were evaluated subjectively and objectively using the Wong-Baker Faces Pain Rating Scale (PRS) and the Face, Legs, Activity, Cry, Consolability (FLACC) scale respectively. Data were analyzed for statistical significance (p < .05). RESULTS The "no pain" and "severe pain" rates in the PRS were 41.7% and 3.3% for the LG and 21.7% and 11.7% for the CG, respectively, during injection. Similarly, in the FLACC data, the number of "no pain" responses was higher for the LG than the CG (40%, 33.3%) and no "severe pain" rate was observed in both groups. The only statistically significant difference found for the PRS was p < .05. The median pain score was "0" for the LG and the CG in the FLACC data for the evaluation of anesthesia efficacy, and there was no statistically significant difference between the groups in terms of pain and anesthesia duration (p > .05). Also, most of the children preferred injection with topical anesthesia + LLLT (66.7%). CONCLUSIONS It has been determined that the application of topical anesthesia + LLLT with an 810-nm diode laser before local infiltration anesthesia reduced injection pain and did not have an effect on anesthesia efficacy and duration in children.
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Affiliation(s)
- Gül Uçar
- Department of Pediatric Dentistry, Faculty of Dentistry, Kocaeli University, Kocaeli, Turkey
| | - Ülkü Şermet Elbay
- Department of Pediatric Dentistry, Faculty of Dentistry, Kocaeli University, Kocaeli, Turkey
| | - Mesut Elbay
- Department of Pediatric Dentistry, Faculty of Dentistry, Kocaeli University, Kocaeli, Turkey
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Liu CT, Hsieh TM, Wu BY, Huang YC, Shih CH, Hu WL, Tsai MY, Chen YH. Acupuncture Analgesia in Patients With Traumatic Rib Fractures: A Randomized-Controlled Trial. Front Med (Lausanne) 2022; 9:896692. [PMID: 35712110 PMCID: PMC9197317 DOI: 10.3389/fmed.2022.896692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/11/2022] [Indexed: 12/19/2022] Open
Abstract
Pain management for traumatic rib fracture is important to prevent complications and reduce associated comorbidities. This trial investigated the analgesic efficacy of acupuncture on traumatic rib fracture. Patients with traumatic rib fracture were randomly assigned to traditional acupuncture (TA), laser acupuncture (LA) or sham laser acupuncture (SLA) groups in a 1:1:1 ratio. The intervention was performed on days 1 to 3 after treatment allocation. The acupoints included bilateral LI4 (Hegu), SJ6 (Zhigou), ST36 (Zusanli) and GB34 (Yanglingquan). The primary outcome was Numeric Rating Scale (NRS) scores for pain after the intervention. Secondary outcomes included sustained maximal inspiration (SMI) lung volume, stress responses, the use of analgesics, and associated complications. Data were analyzed via one-way analysis of variance (ANOVA) with Scheffé's post hoc testing or chi-squared testing. Of the 120 study participants, 109 completed all interventions and measurements. The primary outcomes, which indicated average pain intensity levels and pain while deep breathing, were both significantly lower in the TA and LA groups than in the SLA group after 2 treatments. No between-group differences were observed in SMI lung volume, stress response, analgesics use or associated complications. These findings suggest that TA and LA are safe and effective analgesic modalities for pain management for traumatic rib fracture. Clinical Trial Registration [ClinicalTrials.gov], identifier [NCT03822273].
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Affiliation(s)
- Chun-Ting Liu
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Graduate Institute of Integrated Medicine, School of Chinese Medicine, College of Chinese Medicine, Research Center for Chinese Medicine & Acupuncture, China Medical University, Taichung, Taiwan.,Department of Chinese Medicine, Dali Branch, Jen-Ai Hospital, Taichung, Taiwan
| | - Ting-Min Hsieh
- Division of Trauma, Department of Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Bei-Yu Wu
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Graduate Institute of Integrated Medicine, School of Chinese Medicine, College of Chinese Medicine, Research Center for Chinese Medicine & Acupuncture, China Medical University, Taichung, Taiwan.,Fooyin University College of Nursing, Kaohsiung, Taiwan
| | - Yu-Chuen Huang
- Graduate Institute of Integrated Medicine, School of Chinese Medicine, College of Chinese Medicine, Research Center for Chinese Medicine & Acupuncture, China Medical University, Taichung, Taiwan.,Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Chun-Han Shih
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Wen-Long Hu
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Fooyin University College of Nursing, Kaohsiung, Taiwan
| | - Ming-Yen Tsai
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Graduate Institute of Integrated Medicine, School of Chinese Medicine, College of Chinese Medicine, Research Center for Chinese Medicine & Acupuncture, China Medical University, Taichung, Taiwan
| | - Yung-Hsiang Chen
- Graduate Institute of Integrated Medicine, School of Chinese Medicine, College of Chinese Medicine, Research Center for Chinese Medicine & Acupuncture, China Medical University, Taichung, Taiwan.,Department of Psychology, College of Medical and Health Science, Asia University, Taichung, Taiwan
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Alam MK, Ganji KK, Alfawzan AA, Manay SM, Srivastava KC, Chaudhari PK, Hosni HA, Alswairki HJ, Alansari RA. Ectopic Eye Tooth Management: Photobiomodulation/Low-Level Laser Emission Role in Root Resorption after Fixed Orthodontic Treatment. Healthcare (Basel) 2022; 10. [PMID: 35455787 DOI: 10.3390/healthcare10040610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/21/2022] [Accepted: 03/17/2022] [Indexed: 11/17/2022] Open
Abstract
Aim: This study evaluates the role of low-level laser emission/photobiomodulation (LE/P) in quantitative measurements of root resorption (QRR). The application of LE/P performed after each orthodontic activation with four types of treatment intervention (TI) on the root resorption (RR) after fixed orthodontic treatment (FOT) of the upper arch with ectopic eye tooth/teeth [EET] was investigated. Materials and Methods: Thirty-two orthodontic patients scheduled for FOT were selected and assigned to the four groups. These were LE/P + Self ligating bracket (SLB), LE/P + Conventional bracket (CB), non-photobiomodulation (non-LE/P) + SLB and non-LE/P + CB. Standard management stages of FOT were followed in the maxilla. Each patient received a single application of LE/P labially/buccally and palatally, a total of five different points were used during each activation or appointment. The main outcome measure was QRR in maxillary anteriors before and after FOT, assessed via cone-beam computed tomography (CBCT) using 3D OnDemand software. Results: Insignificant QRR was found between before and after FOT in SLB, CLB, and LE/P, non-LE/P groups (p > 0.05). QRR in the SLB vs. CB and LE/P vs. non-LE/P group was significantly different in 11, 13, and 23 (p < 0.05). QRR in the LE/P + SLB group (p < 0.05) was significantly different in 11, 13, and 23 than that in the other groups. The most severe QRR was found on 13 (0.88 ± 0.28 mm and 0.87 ± 0.27 mm) and 23 (1.19 ± 0.14 mm and 1.16±0.13 mm) in the CB and non-LE/P group (p < 0.001). LE/P + SLB showed a highly significant superior outcome (p < 0.001) in relation to non-LE/P + CB, the QRR of 23 were 0.813 ± 0.114 mm and 1.156 ± 0.166 mm, respectively. Conclusion: Significantly higher amounts of QRR were found in EET patients after FOT treated with the CB, non-LE/P, and non-LE/P + CB system and warrant further investigation to explore potential specific causes.
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Inchingolo F, Hazballa D, Inchingolo AD, Malcangi G, Marinelli G, Mancini A, Maggiore ME, Bordea IR, Scarano A, Farronato M, Tartaglia GM, Lorusso F, Inchingolo AM, Dipalma G. Innovative Concepts and Recent Breakthrough for Engineered Graft and Constructs for Bone Regeneration: A Literature Systematic Review. Materials (Basel) 2022; 15:ma15031120. [PMID: 35161065 PMCID: PMC8839672 DOI: 10.3390/ma15031120] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 02/06/2023]
Abstract
Background: For decades, regenerative medicine and dentistry have been improved with new therapies and innovative clinical protocols. The aim of the present investigation was to evaluate through a critical review the recent innovations in the field of bone regeneration with a focus on the healing potentials and clinical protocols of bone substitutes combined with engineered constructs, growth factors and photobiomodulation applications. Methods: A Boolean systematic search was conducted by PubMed/Medline, PubMed/Central, Web of Science and Google scholar databases according to the PRISMA guidelines. Results: After the initial screening, a total of 304 papers were considered eligible for the qualitative synthesis. The articles included were categorized according to the main topics: alloplastic bone substitutes, autologous teeth derived substitutes, xenografts, platelet-derived concentrates, laser therapy, microbiota and bone metabolism and mesenchymal cells construct. Conclusions: The effectiveness of the present investigation showed that the use of biocompatible and bio-resorbable bone substitutes are related to the high-predictability of the bone regeneration protocols, while the oral microbiota and systemic health of the patient produce a clinical advantage for the long-term success of the regeneration procedures and implant-supported restorations. The use of growth factors is able to reduce the co-morbidity of the regenerative procedure ameliorating the post-operative healing phase. The LLLT is an adjuvant protocol to improve the soft and hard tissues response for bone regeneration treatment protocols.
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Affiliation(s)
- Francesco Inchingolo
- Department of Interdisciplinary Medicine, University of Medicine Aldo Moro, 70124 Bari, Italy; (D.H.); (A.D.I.); (G.M.); (G.M.); (A.M.); (M.E.M.); (A.M.I.)
- Correspondence: (F.I.); (F.L.); (G.D.); Tel.: +39-3312111104 (F.I.); +39-3282132586 (F.L.); +39-3396989939 (G.D.)
| | - Denisa Hazballa
- Department of Interdisciplinary Medicine, University of Medicine Aldo Moro, 70124 Bari, Italy; (D.H.); (A.D.I.); (G.M.); (G.M.); (A.M.); (M.E.M.); (A.M.I.)
- Kongresi Elbasanit, Rruga: Aqif Pasha, 3001 Elbasan, Albania
| | - Alessio Danilo Inchingolo
- Department of Interdisciplinary Medicine, University of Medicine Aldo Moro, 70124 Bari, Italy; (D.H.); (A.D.I.); (G.M.); (G.M.); (A.M.); (M.E.M.); (A.M.I.)
| | - Giuseppina Malcangi
- Department of Interdisciplinary Medicine, University of Medicine Aldo Moro, 70124 Bari, Italy; (D.H.); (A.D.I.); (G.M.); (G.M.); (A.M.); (M.E.M.); (A.M.I.)
| | - Grazia Marinelli
- Department of Interdisciplinary Medicine, University of Medicine Aldo Moro, 70124 Bari, Italy; (D.H.); (A.D.I.); (G.M.); (G.M.); (A.M.); (M.E.M.); (A.M.I.)
| | - Antonio Mancini
- Department of Interdisciplinary Medicine, University of Medicine Aldo Moro, 70124 Bari, Italy; (D.H.); (A.D.I.); (G.M.); (G.M.); (A.M.); (M.E.M.); (A.M.I.)
| | - Maria Elena Maggiore
- Department of Interdisciplinary Medicine, University of Medicine Aldo Moro, 70124 Bari, Italy; (D.H.); (A.D.I.); (G.M.); (G.M.); (A.M.); (M.E.M.); (A.M.I.)
| | - Ioana Roxana Bordea
- Department of Oral Rehabilitation, Faculty of Dentistry, Iuliu Hațieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
| | - Antonio Scarano
- Department of Innovative Technologies in Medicine and Dentistry, University of Chieti-Pescara, 66100 Chieti, Italy;
| | - Marco Farronato
- UOC Maxillo-Facial Surgery and Dentistry, Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, Fondazione IRCCS Ca Granda, Ospedale Maggiore Policlinico, University of Milan, 20100 Milan, Italy; (M.F.); (G.M.T.)
| | - Gianluca Martino Tartaglia
- UOC Maxillo-Facial Surgery and Dentistry, Department of Biomedical, Surgical and Dental Sciences, School of Dentistry, Fondazione IRCCS Ca Granda, Ospedale Maggiore Policlinico, University of Milan, 20100 Milan, Italy; (M.F.); (G.M.T.)
| | - Felice Lorusso
- Department of Innovative Technologies in Medicine and Dentistry, University of Chieti-Pescara, 66100 Chieti, Italy;
- Correspondence: (F.I.); (F.L.); (G.D.); Tel.: +39-3312111104 (F.I.); +39-3282132586 (F.L.); +39-3396989939 (G.D.)
| | - Angelo Michele Inchingolo
- Department of Interdisciplinary Medicine, University of Medicine Aldo Moro, 70124 Bari, Italy; (D.H.); (A.D.I.); (G.M.); (G.M.); (A.M.); (M.E.M.); (A.M.I.)
| | - Gianna Dipalma
- Department of Interdisciplinary Medicine, University of Medicine Aldo Moro, 70124 Bari, Italy; (D.H.); (A.D.I.); (G.M.); (G.M.); (A.M.); (M.E.M.); (A.M.I.)
- Correspondence: (F.I.); (F.L.); (G.D.); Tel.: +39-3312111104 (F.I.); +39-3282132586 (F.L.); +39-3396989939 (G.D.)
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El Mobadder M, Nammour S, Ortega M, Grzech-Leśniak K. Photobiomodulation Therapy Applied after 6 Months for the Management of a Severe Inferior Alveolar Nerve Injury. Life (Basel) 2021; 11:1420. [PMID: 34947950 DOI: 10.3390/life11121420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/14/2021] [Accepted: 12/14/2021] [Indexed: 11/17/2022] Open
Abstract
Despite its significant negative impact on the quality of life, the methods for the management of the inferior alveolar nerve (IAN) injury are still limited. In this case report, the patient did not show any improvement from the day of the iatrogenic accident until 6 months. A significant improvement of the symptoms started to appear only at 6 months when PBMT was applied. A total of 42 sessions of PBMT took place. The application zone included intraoral and extraoral areas. The parameters were: Delivery power of 0.1 W, for 40 s, continuous wave (CW), contact mode, and delivered energy of 4 J. The delivered energy density related to the fiber diameter was 1415 J/cm2. Each treated point was considered to be 1 cm2 of diameter. At the end of the treatment, all of the symptoms disappeared except for an abnormal sensation on touching the mucosa and gingiva of the concerned area. No side effects were noted. This case report shows that PBMT can be a very promising approach for the management of severe cases that are not improving with conventional methods.
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Cardoso FDS, Gonzalez-Lima F, Gomes da Silva S. Photobiomodulation for the aging brain. Ageing Res Rev 2021; 70:101415. [PMID: 34325071 DOI: 10.1016/j.arr.2021.101415] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 07/16/2021] [Accepted: 07/20/2021] [Indexed: 12/15/2022]
Abstract
Longevity is one of the great triumphs of humanity. Worldwide, the elderly is the fastest growing segment of the population. As a consequence, the number of cases of age-related cognitive decline and neurological diseases associated with aging, such as Alzheimer's and Parkinson's, has been increasing. Among the non-pharmacological interventions studied for the treatment or prevention of age-related neurocognitive impairment, photobiomodulation (PBM) has gained prominence for its beneficial effects on brain functions relevant to aging brains. In animal models, the neuroprotective and neuromodulatory capacity of PBM has been observed. Studies using both animals and humans have shown promising metabolic and hemodynamic effects of PBM on the brain, such as improved mitochondrial and vascular functions. Studies in humans have shown that PBM can improve electrophysiological activity and cognitive functions such as attention, learning, memory and mood in older people. In this paper we will review the main brain effects of PBM during aging, discuss its mechanisms of action relevant to the aging brain, and call for more controlled studies in older populations.
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Affiliation(s)
- Fabrízio Dos Santos Cardoso
- Núcleo de Pesquisas Tecnológicas, Universidade de Mogi das Cruzes, Mogi das Cruzes, SP, Brazil; Department of Psychology and Institute for Neuroscience, University of Texas at Austin, Austin, TX, USA
| | - F Gonzalez-Lima
- Department of Psychology and Institute for Neuroscience, University of Texas at Austin, Austin, TX, USA
| | - Sérgio Gomes da Silva
- Núcleo de Pesquisas Tecnológicas, Universidade de Mogi das Cruzes, Mogi das Cruzes, SP, Brazil; Centro Universitário UNIFAMINAS (UNIFAMINAS), Muriaé, MG, Brazil; Hospital do Câncer de Muriaé, Fundação Cristiano Varella (FCV), Muriaé, MG, Brazil.
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Shah D, Ponappa MC, Ponnappa KC. Evaluation of effect of low level laser therapy with intracanal medicament on periapical healing: A randomised control trial. Indian J Dent Res 2021; 32:299-304. [PMID: 35229767 DOI: 10.4103/ijdr.ijdr_896_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Objective(s) Photobiomodulation, also commonly referred to as low level laser therapy (LLLT), uses light energy to elicit biological responses from the cell and normalise cell function. Using LLLT on bone has been demonstrated to be effective in modulating inflammation, accelerating bone cell proliferation and enhancing the healing process. The objectives of this study were to evaluate postoperative pain and periapical healing in two different groups. Materials and Methods 40 subjects with periapical lesion were selected and were assigned randomly into two groups. Group I: Conventional root canal therapy along with LLLT. Group II: Conventional root canal therapy only. Radiographs were obtained and assessed at baseline, 3, 6 and 9 months postoperatively. The VAS pain scale was assessed post operatively at 0, 7th and 14th day respectively. The Independent t-test was used for evaluation of the data. Results Significant differences were noted in reduction of periapicallesion at 3 and 9 months follow-up. The healing was better in Group I that received LLLT with the conventional Root Canal Treatment (RCT). Values for postoperative pain was lower in Group I than Group II, but were statistically non-significant. Conclusion(s) LLLT when used as an adjunct with conventional root canal treatment showed acceleration of the healing process of periapical lesions. LLLT has a positive effect on modulating the immune response for favourable healing.
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Affiliation(s)
- Deep Shah
- Department of Conservative Dentistry and Endodontics, Coorg Institute of Dental Sciences, Virajpet, Karnataka, India
| | - Muckatira Cariappa Ponappa
- Department of Conservative Dentistry and Endodontics, Coorg Institute of Dental Sciences, Virajpet, Karnataka, India
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Rosa LP, Silva FCD, Luz SCL, Vieira RL, Tanajura BR, Silva Gusmão AGD, de Oliveira JM, Jesus Nascimento FD, Dos Santos NAC, Inada NM, Blanco KC, Carbinatto FM, Bagnato VS. Follow-up of pressure ulcer treatment with photodynamic therapy, low level laser therapy and cellulose membrane. J Wound Care 2021; 30:304-310. [PMID: 33856908 DOI: 10.12968/jowc.2021.30.4.304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE A pressure ulcer (PU) is an area of tissue trauma caused by continuous and prolonged pressure, often associated with hospitalised patients immobilised due to neurological problems, negatively affecting their quality of life, and burdening the public budget. The aim of this study was to report the follow-up, for 45 weeks, of three patients with neurological lesions due to trauma who subsequently developed PUs, and who were treated with a combination of photodynamic therapy (PDT), low level laser therapy (LLLT) and cellulose membrane (CM). METHOD PDT was mediated by the photosensitiser curcumin on a 1.5% emulsion base. Blue LED light at 450 nm was delivered continuously for 12 minutes at an irradiance of 30mW/cm2 and total energy delivered to the tissue was 22J/cm2. LLLT was performed with 660 nm laser, punctuated and continuous, twice a week with parameters: spot size 0.04cm2, power of 40mW, 10 seconds per point, fluence of 10J/cm2 and irradiance of 1000mW/cm2. RESULTS All PUs had a significant reduction (range: 95.2-100%) of their area after 45 weeks of follow-up and two PUs had complete healing at 20 weeks and 30 weeks. All of the PUs showed a reduction in contamination with the PDT treatments in different proportions. CONCLUSION From the results obtained, we conclude that the combination of PDT, LLLT and CM is a promising treatment for PU healing.
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Affiliation(s)
- Luciano Pereira Rosa
- Multidisciplinary Health Institute, Federal University of Bahia, Hormindo Barros Street, 58. Candeias. Vitória da Conquista, Bahia, Brazil
| | - Francine Cristina da Silva
- Multidisciplinary Health Institute, Federal University of Bahia, Hormindo Barros Street, 58. Candeias. Vitória da Conquista, Bahia, Brazil
| | - Suzete Carvalho Landulfo Luz
- Multidisciplinary Health Institute, Federal University of Bahia, Hormindo Barros Street, 58. Candeias. Vitória da Conquista, Bahia, Brazil
| | | | - Beatriz Rocha Tanajura
- Multidisciplinary Health Institute, Federal University of Bahia, Hormindo Barros Street, 58. Candeias. Vitória da Conquista, Bahia, Brazil
| | - Alana Gonçalves da Silva Gusmão
- Multidisciplinary Health Institute, Federal University of Bahia, Hormindo Barros Street, 58. Candeias. Vitória da Conquista, Bahia, Brazil
| | - Janeide Muritiba de Oliveira
- Multidisciplinary Health Institute, Federal University of Bahia, Hormindo Barros Street, 58. Candeias. Vitória da Conquista, Bahia, Brazil
| | - Fabiana de Jesus Nascimento
- Multidisciplinary Health Institute, Federal University of Bahia, Hormindo Barros Street, 58. Candeias. Vitória da Conquista, Bahia, Brazil
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Abstract
Introduction COVID-19 poses a higher risk of complications in obese patients due to low respiratory system compliance, increased inflammatory cytokines, and an activated immune system secondary to excess adiposity. Low level laser therapy (LLLT) has significant anti-inflammatory effects and reduces inflammatory cytokines. It is noninvasive and approved for pain management and musculoskeletal injuries. Data from human and experimental animal models of respiratory tract disease suggests that LLLT reduces inflammation and promotes lung healing. Case and outcomes A morbidly obese 32-year-old Asian female with severe COVID-19 received four consecutive once-daily LLLT sessions via a laser scanner. Pulsed 808 nm and 905 nm laser beams were delivered over the posterior chest for 28 min. The patient was evaluated before and after LLLT by radiological assessment of lung edema (RALE) on chest X-ray, oxygen requirements and saturation, pneumonia severity indices (SMART-COP and Brescia-COVID), blood inflammatory markers (interleukin-6, ferritin, and C-Reactive protein (CRP)). Prior to treatment, oxygen saturation (SpO2) via pulse oximetry was 88%–93% on 5–6 L oxygen. Following LLLT, SpO2 increased to 97%–99% on 1–3 L oxygen. Reductions in RALE score from 8 to 3, Brescia-COVID from 4 to 0, and SMART-COP from 5 to 0 were observed. Interleukin-6 decreased from 45.89 to 11.7 pg/mL, ferritin from 359 to 175 ng/mL, and CRP from 3.04 to 1.43 mg/dL. Post-treatment, the patient noted appreciable improvement in respiratory symptoms. Conclusion Following LLLT our patient showed improvement over a few days in respiratory indices, radiological findings, inflammatory markers, and patient outcomes. This report suggests that adjunct LLLT can be safely combined with conventional treatment in patients with severe COVID-19 and morbid obesity.
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Affiliation(s)
- Scott A Sigman
- Ortholazer, Orthopedic Laser Center, 227 Chelmsfort St, Chelmsford, MA, US, 01824
| | | | - Mariana A Vetrici
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB
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Hamza S, Fathy S, El-Azab S. Effect of diode laser biostimulation compared to Teriparatide on induced osteoporosis in rats: an animal study from Egypt. Int J Clin Exp Pathol 2020; 13:1970-1985. [PMID: 32922592 PMCID: PMC7476941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 06/29/2020] [Indexed: 06/11/2023]
Abstract
Our aim in this study was to evaluate the effect of low-level laser therapy (LLLT) by means of diode laser bio-stimulation compared to Teriparatide in induced osteoporosis in rats. A total of 45 adult female Egyptian albino rats were used. Rats were divided into five groups: normal control, osteoporotic control, Teriparatide (TPTD) group (T), laser group (L), and laser and teriparatide (T+L) combination group. Osteoporosis was induced by performing double ovariectomy in rats. Lower jaws and left femurs were dissected. The specimens were tested using a Computed tomography unit, scanning EM (SEM) equipped with Energy Dispersive X-Ray Analyzer, and Rat PINP ELISA Kit. The histopathologic examination of experimental rat jaws and femurs revealed changes in bone architecture among the various groups throughout the experiment. CT examination showed a noticeable difference in radiodensity between jaw and femur bones. By SEM, bones of the Normal Control (NC) group showed normal bone porosity. However, bones of the Osteoporotic Control (OC) group showed a great difference as bone pores were large and numerous with irregular outlines. The ELISA test for PINP concentration showed a steady rise in the PINP concentrations in OC, T, L and T+L groups. We concluded that TPTD has osteogenic potential and is capable to enhance bone architecture by inducing the formation of new well-organized bone with narrower bone pore diameter. LLLT can be used as a good alternative local treatment strategy with minimal side effects and superior outcomes.
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Affiliation(s)
- Shymaa Hamza
- Department of Oral Pathology, Faculty of Dentistry, Cairo University Cairo, Egypt
| | - Safa Fathy
- Department of Oral Pathology, Faculty of Dentistry, Cairo University Cairo, Egypt
| | - Samia El-Azab
- Department of Oral Pathology, Faculty of Dentistry, Cairo University Cairo, Egypt
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Mokmeli S, Vetrici M. Low level laser therapy as a modality to attenuate cytokine storm at multiple levels, enhance recovery, and reduce the use of ventilators in COVID-19. Can J Respir Ther 2020; 56:25-31. [PMID: 32844112 PMCID: PMC7428000 DOI: 10.29390/cjrt-2020-015] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The global pandemic COVID-19 is a contagious disease and its mortality rates ranging from 1% to 5% are likely due to acute respiratory distress syndrome (ARDS), and cytokine storm. A significant proportion of patients who require intubation succumb to the disease, despite the availability of ventilators and the best treatment practices. Researchers worldwide are in search of anti-inflammatory medicines in the hope of finding a cure for COVID-19. Low-level laser therapy (LLLT) has strong, anti-inflammatory effects confirmed by meta-analyses, and it may be therapeutic to ARDS. LLLT has been used for pain management, wound healing, and other health conditions by physicians, physiotherapists, and nurses worldwide for decades. In addition, it has been used in veterinary medicine for respiratory tract disease such as pneumonia. Laser light with low-power intensity is applied to the surface of the skin to produce local and systemic effects. Based on the clinical experience, peer-reviewed studies, and solid laboratory data in experimental animal models, LLLT attenuates cytokine storm at multiple levels and reduces the major inflammatory metabolites. LLLT is a safe, effective, low-cost modality without any side-effects that may be combined with conventional treatment of ARDS. We summarize the effects of LLLT on pulmonary inflammation and we provide a protocol for augmenting medical treatment in COVID-19 patients. LLLT combined with conventional medical therapy has the potential to prevent the progression of COVID-19, minimize the length of time needed on a ventilator, enhance the healing process, and shorten recovery time.
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Affiliation(s)
- Soheila Mokmeli
- Canadian Optic and Laser Center (Training Institute), Victoria, BC, Canada
| | - Mariana Vetrici
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada
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Maracci LM, Stasiak G, de Oliveira Chami V, Franciscatto GJ, Milanesi J, Figueiró C, Bernardon Silva T, Guimarães MB, Marquezan M. Treatment of myofascial pain with a rapid laser therapy protocol compared to occlusal splint: A double-blind, randomized clinical trial. Cranio 2020; 40:433-439. [PMID: 32491964 DOI: 10.1080/08869634.2020.1773661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To compare the effect of a rapid low-level laser therapy (LLLT) protocol to Michigan occlusal splint in the treatment of myofascial pain, as well as to evaluate their impact on Oral Health-Related Quality of Life (OHRQoL). METHODS Thirty participants were randomly allocated into three groups: G1: occlusal splint (n = 11), G2: LLLT (n = 10), and G3: LLLT placebo (n = 9). LLLT and placebo were applied in the points of pain upon palpation. RESULTS G1 presented improvement in pain (p = 0.014) and in the diagnosis of myofascial pain (p = 0.008), while G2 and G3 did not. Regarding OHRQoL, G1 and G2 presented significant improvement (p = 0.005, in both), whereas, G3 did not. CONCLUSION Michigan occlusal splint was effective in reducing pain and improving OHRQoL. Treatment with the rapid LLLT protocol only provided an improvement in OHRQoL.
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Affiliation(s)
| | - Gabriela Stasiak
- Federal University of Santa Maria, Sant'Ana do Livramento, RS, Brazil
| | | | | | - Jovana Milanesi
- Private Practice, Volunteer at Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Cláudio Figueiró
- Department of Restorative Dentistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | | | - Magáli Beck Guimarães
- Department of Stomatology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Mariana Marquezan
- Department of Stomatology, Federal University of Santa Maria, Santa Maria, RS, Brazil
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Matys J, Flieger R, Gedrange T, Janowicz K, Kempisty B, Grzech-Leśniak K, Dominiak M. Effect of 808 nm Semiconductor Laser on the Stability of Orthodontic Micro-Implants: A Split-Mouth Study. Materials (Basel) 2020; 13:E2265. [PMID: 32423127 PMCID: PMC7287787 DOI: 10.3390/ma13102265] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/03/2020] [Accepted: 05/11/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND To evaluate the effect of photobiomodulation (PBM) on orthodontic micro-implants (n = 44; 14 women, 8 men). METHODS PBM with 808 nm diode laser was applied immediately, 3, 6, 9, 12, 15, and 30 days post the implantation. Results were assessed within same time frames and additionally after 60 days to check for implants stability using the Periotest device. Patients pain experiences following the first day post-treatment and potential loss of micro-implants after 60 days were recorded. The procedure involved insertion of mini-implants in the maxilla for the laser group (L, n = 22) and negative control group (C, n = 22). Irradiation was carried buccally and palatally with respect to the maxillary ridge (2 points). The energy per point was 4 J (8 J/cm2), total dose was 56 J. RESULTS Patients did not report significant differences in terms of pain experiences comparing the L and C groups (p = 0.499). At 30 days post-treatment, higher secondary stability of implants was observed in the laser group (Periotest Test Value, PTV 6.32 ± 3.62), in contrast to the controls (PTV 11.34 ± 5.76) (p = 0.004). At 60 days post-treatment, significantly higher stability was recorded in the laser group (PTV 6.55 ± 4.66) compared with the controls, PTV (10.95 ± 4.77) (p = 0.009). Conclusions: Application of the 808 nm diode laser increased secondary micro-implant stability.
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Affiliation(s)
- Jacek Matys
- Laser Laboratory at Dental Surgery Department, Medical University of Wroclaw, 50-425 Wrocław, Poland;
| | | | - Tomasz Gedrange
- Dental Surgery Department, Medical University of Wroclaw, 50-425 Wrocław, Poland; (T.G.); (M.D.)
- Department of Orthodontics, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| | - Krzysztof Janowicz
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (K.J.); (B.K.)
- Department of Histology and Embryology, Poznań University of Medical Sciences, 60-781 Poznań, Poland
| | - Bartosz Kempisty
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (K.J.); (B.K.)
- Department of Histology and Embryology, Poznań University of Medical Sciences, 60-781 Poznań, Poland
- Department of Obstetrics and Gynaecology, University Hospital and Masaryk University, 602 00 Brno, Czech Republic
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University, 87-100 Toruń, Poland
| | - Kinga Grzech-Leśniak
- Laser Laboratory at Dental Surgery Department, Medical University of Wroclaw, 50-425 Wrocław, Poland;
| | - Marzena Dominiak
- Dental Surgery Department, Medical University of Wroclaw, 50-425 Wrocław, Poland; (T.G.); (M.D.)
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Ghigiarelli JJ, Fulop AM, Burke AA, Ferrara AJ, Sell KM, Gonzalez AM, Pelton LM, Zimmerman JA, Coke SG, Marshall DG. The Effects of Whole-Body Photobiomodulation Light-Bed Therapy on Creatine Kinase and Salivary Interleukin-6 in a Sample of Trained Males: A Randomized, Crossover Study. Front Sports Act Living 2020; 2:48. [PMID: 33345040 PMCID: PMC7739664 DOI: 10.3389/fspor.2020.00048] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 04/07/2020] [Indexed: 11/30/2022] Open
Abstract
Photobiomodulation therapy (PBMT) can be applied to the whole body as compared to the application of using single hand-held devices that isolate a smaller muscle area. The purpose of this study was to examine the effects of an acute dose of whole-body PBMT pre- and post-high-intensity resistance training on creatine kinase (CK) and salivary interleukin-6 (IL-6) in a sample of trained males. Twelve males (31 ± 8.3 years, 177.2 ± 5.4 cm, and 86.0 ± 7.5 kg) were part of a randomized, counterbalanced, cross-over design, whereby each participant performed a high-intensity resistance training session that consisted of the bench press, chin-up, and repeated sprints on two separate occasions. Each participant was assigned to either the PBMT or control condition on two separate weeks, with a 10-days washout period between the weeks. Creatine kinase was measured at baseline, 24, 48, and 72 h post-exercise. Salivary IL-6 was measured at baseline, 60, 90, and 120 min. A paired t-test showed no significant difference (p = 0.669) in the area under the curve (AUC) for CK during the PBMT (191.7 ± 48.3) and control conditions (200.2 ± 68.0). A Wilcoxon signed-rank test also showed no significant median difference (p = 0.155) in the AUC for salivary IL-6 during the PBMT (Mdn = 347.7) and control conditions (Mdn = 305.8). An additional Wilcoxon signed-rank test for CK percentage change from 24 to 72 h showed the PBMT condition (Mdn = −45%) to have a −18% median difference as compared to the control condition (Mdn = −41%). As such, whole-body PBMT does not significantly reduce the activity of salivary IL-6 or CK concentration during the 24 to 72-h recovery post-high-intensity resistance training.
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Affiliation(s)
- Jamie J Ghigiarelli
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Andras M Fulop
- Department of Health Professions, Hofstra University, Hempstead, NY, United States.,Crux Physical Therapy, Garden City, NY, United States
| | - Adam A Burke
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Anthony J Ferrara
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Katie M Sell
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Adam M Gonzalez
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Luke M Pelton
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Jamie A Zimmerman
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Shaquille G Coke
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
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24
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Yamamoto-Silva FP, Silva LR, de Lima KL, Silva MA, Estrela C, de Freitas Silva BS. Low-level laser therapy as adjunctive treatment for a sodium hypochlorite accident: a case report. Gen Dent 2019; 67:63-66. [PMID: 31355767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A 39-year-old woman sought specialized treatment complaining of a large, painful oral ulcer in the right buccal vestibule after receiving emergency endodontic treatment 3 days earlier. The patient reported that the tooth, the mandibular right first premolar, was not isolated with a rubber dam and that she felt the extrusion of a liquid in the buccal tissues. Clinically, a necrotic area with raised erythematous borders was observed in the mandibular right side. The clinical diagnosis was a chemically induced ulcer caused by a sodium hypochlorite accident. Dexamethasone and amoxicillin were prescribed to control pain and prevent secondary infection. The large size of the lesion was an indication for application of low-level laser therapy (LLLT), which was delivered at a wavelength of 685 nm (output power, 30 mW; power density, 0.5 mW⁄cm2 ; energy density, 6 J⁄cm2 ) every 2 days for a total of 6 sessions. The LLLT was applied to the necrotic area with a punctual mode (2 points) for 12 seconds per point. The patient reported a substantial reduction in pain after the second application, and the wound was completely healed after 6 sessions. The results observed in this patient suggest that LLLT could aid patients in recovering from NaOCl-related lesions.
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25
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Calis M, Demirtas TT, Sert G, Irmak G, Gumusderelioglu M, Turkkani A, Çakar AN, Ozgur F. Photobiomodulation with polychromatic light increases zone 4 survival of transverse rectus abdominis musculocutaneous flap. Lasers Surg Med 2019; 51:538-549. [PMID: 30706950 DOI: 10.1002/lsm.23063] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/23/2018] [Indexed: 11/09/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the effect of relatively novel approach of application of polychromatic light waves on flap survival of experimental musculocutaneous flap model and to investigate efficacy of this modality as a delay procedure to increase vascularization of zone 4 of transverse rectus abdominis musculocutaneous (TRAM) flap. METHODS Twenty-one Wistar rats were randomized and divided into 3 experimental groups (n = 7 each). In group 1 (control group), after being raised, the TRAM flap was sutured back to its bed without any further intervention. In group 2 (delay group), photobiomodulation (PBM) was applied for 7 days as a delay procedure, before elevation of the flap. In group 3 (PBM group), the TRAM flap was elevated, and PBM was administered immediately after the flap was sutured back to its bed for therapeutic purpose. PBM was applied in 48 hours interval from 10 cm. distance to the whole abdominal wall both in groups 2 and 3 for one week. After 7 days of postoperative follow-up, as the demarcation of necrosis of the skin paddle was obvious, skin flap survival was further evaluated by macroscopic, histological and microangiographic analysis. RESULTS The mean percentage of skin flap necrosis was 56.17 ± 23.68 for group 1, 30.92 ± 17.46 for group 2 and 22.73 ± 12.98 for group 3 PBM receiving groups 2 and 3 revealed less necrosis when compared to control group and this difference was statistically significant. Vascularization in zone 4 of PBM applied groups 2 and 3 was higher compared to group 1 (P = 0.001). Acute inflammation in zone 4 of group 1 was significantly higher compared to groups 2 and 3 (P = 0.025). Similarly, evaluation of zone 1 of the flaps reveled more inflammation and less vascularization among the samples of the control group (P = 0.006 and P = 0.007, respectively). Comparison of PBM receiving two groups did not demonstrate further difference in means of vascularization and inflammation density (P = 0.259). CONCLUSION Application of PBM in polychromatic fashion enhances skin flap survival in experimental TRAM flap model both on preoperative basis as a delay procedure or as a therapeutic approach. Lasers Surg. 51:538-549, 2019. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Mert Calis
- Department of Plastic Reconstructive and Aesthetic Surgery, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | | | - Gokhan Sert
- Department of Plastic Reconstructive and Aesthetic Surgery, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gulseren Irmak
- Bioengineering Department, Hacettepe University, Ankara, Turkey
| | | | - Ayten Turkkani
- Department of Histology and Embryology, TOBB University, Ankara, Turkey
| | - Ayse Nur Çakar
- Department of Histology and Embryology, TOBB University, Ankara, Turkey
| | - Figen Ozgur
- Department of Plastic Reconstructive and Aesthetic Surgery, Hacettepe University Faculty of Medicine, Ankara, Turkey
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26
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Akerzoul N, Chbicheb S. Low laser therapy as an effective treatment of recurrent aphtous ulcers: a clinical case reporting two locations. Pan Afr Med J 2018; 30:205. [PMID: 30574224 PMCID: PMC6294968 DOI: 10.11604/pamj.2018.30.205.15779] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 06/22/2018] [Indexed: 11/11/2022] Open
Abstract
Apthous ulcers, commonly referred to as canker sores, are the most common ulcerative lesions of the oral mucosa. These are usually painful and are associated with redness and occasional bleeding from the affected area(s). Low Level Laser Therapy (LLLT) has shown excellent results in relieving the pain and complete remission of the oral ulcers. Through a clinical case, we report two locations of oral ulcers treated successfully with diode laser.
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Affiliation(s)
- Narjiss Akerzoul
- Department of Oral Surgery, Faculty of Dentistry, Mohamed V University, Rabat, Morocco
| | - Saliha Chbicheb
- Department of Oral Surgery, Faculty of Dentistry, Mohamed V University, Rabat, Morocco
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27
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Vladimirovich Moskvin S, Ivanovich Apolikhin O. Effectiveness of low level laser therapy for treating male infertility. Biomedicine (Taipei) 2018; 8:7. [PMID: 29806585 PMCID: PMC5992952 DOI: 10.1051/bmdcn/2018080207] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 03/01/2018] [Indexed: 12/11/2022] Open
Abstract
In half of the cases, the infertility of the couple is due to the disorder of the male fertility. The leading factors that cause male infertility are urogenital infections, disorders of the immune system, testicular and prostate pathology, as well as endocrine disorders. Low level laser therapy (LLLT) is a very effective physical therapy method, used in many areas of medicine, including obstetrics and gynaecology, andrology and urology; and it is recommended as an integral part of the complex treatment of infertility. The literature review showed that LLLT is beneficial in treating male infertility. Laser can significantly improve the survival, motility and speed of movement of spermatozoa. Laser therapy of patients with prostatitis and vesiculitis can eliminate infiltrative-exudative changes, improve reproductive and copulatory functions. Local illumination of red (635 nm) and infrared (904 nm) spectra should be combined with intravenous laser blood illumination (ILBI) of red (635 nm) and ultraviolet (UV) (365 nm) spectra.
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Affiliation(s)
- Sergey Vladimirovich Moskvin
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O.K. Skobelkin State Scientific Center of Laser Medicine under the Federal Medical Biological Agency Moscow 121165 Russia
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28
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Gabel CP, Petrie SR, Mischoulon D, Hamblin MR, Yeung A, Sangermano L, Cassano P. A case control series for the effect of photobiomodulation in patients with low back pain and concurrent depression. Laser Ther 2018; 27:167-173. [PMID: 32158062 DOI: 10.5978/islsm.27_18-or-18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background and aims To present incidental findings in patients with low back pain (LBP) who received photobiomodulation (PBM) administered to the back and thighs as an adjunct to physical therapy (PT) and then experienced improvement in concurrent depression. Materials and methods Five outpatients with LBP and concurrent self-reported depression were treated for LBP over five weeks with PT (5-sessions) and concurrent PBM (final 3-sessions), and retrospectively matched to five control patients treated with PT alone (5-sessions). The PBM device emitted light at 850nm and 660 nm with an irradiance of 100 mW/cm2 and fluence of 3 J/cm2 on 12 symmetrical posterior sites (thoracic, lumbar and thighs) for 30 sec/site. Results Both groups had non-significant differences in all baseline scores, except for higher functional status (ARGS) in the PBM-group (33.6 ± 12.2 vs.18.6 ± 3.6, t(8) = 2.638, p = 0.030). After treatment, the mean decrease in depression scores (OMSQ-12 item #6) was significantly larger in the PBM-group (43.0 ± 22.0 vs. 8.0 ± 5.7, t(8) = 3.449, p = 0.009). Improvement in functional status (ARGS) in the PBM-group was similar to that in the controls (42.0 ± 13.5 vs. 43.4 ± 11.1, t(8) = 0.179, p = 0.862), suggesting group differences in antidepressant effect were independent of functional status improvement. Conclusions This preliminary investigation suggests that an antidepressant effect may result from PBM to the back and thighs in patients with LBP and concurrent depression.
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Affiliation(s)
| | - Samuel R Petrie
- Harvard Medical School, Depression Clinical and Research Program, Harvard University, Massachusetts General Hospital, Boston
| | - David Mischoulon
- Harvard Medical School, Depression Clinical and Research Program, Harvard University, Massachusetts General Hospital, Boston
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Department of Dermatology, Harvard Medical School, Boston.,Harvard-MIT Division of Health Science and Technology, Cambridge MA 02139
| | - Albert Yeung
- Harvard Medical School, Depression Clinical and Research Program, Harvard University, Massachusetts General Hospital, Boston
| | - Lisa Sangermano
- Harvard Medical School, Depression Clinical and Research Program, Harvard University, Massachusetts General Hospital, Boston
| | - Paolo Cassano
- Harvard Medical School, Depression Clinical and Research Program, Harvard University, Massachusetts General Hospital, Boston.,Harvard Medical School, Center for Anxiety and Traumatic Stress Disorders, Harvard University, Massachusetts General Hospital, Boston
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29
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Kara C, Selamet H, Gökmenoğlu C, Kara N. Low level laser therapy induces increased viability and proliferation in isolated cancer cells. Cell Prolif 2017; 51:e12417. [PMID: 29160001 DOI: 10.1111/cpr.12417] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 11/01/2017] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES Low level laser therapy (LLLT), which stimulates natural biological processes in the application region, is frequently used in dental treatments. The aim of our study was to evaluate the effects of LLLT which could activate precancerous cells or increase existing cancerous tissue in case of clinically undetectable situations. MATERIALS AND METHODS Saos-2 osteoblast-like osteosarcoma cells and A549 human lung carcinoma cells were used. Twenty-four hours after preparation of cell culture plates, laser irradiation was performed 1, 2 and 3 times according to the test groups using Nd:YAG laser with the power output 0.5, 1, 2 and 3 W. Cell proliferation analysis was performed by MTT assay at the 24th hour following the last laser applications. RESULTS Generally, it was observed that the proliferation rates increased as the number of applications increased, when compared to the controls, especially in those cases in which the irradiation was performed 2 or 3 times more. CONCLUSION The findings of this study have led to the conclusion that LLLT increases cancer cell proliferation, depending on the power output level of the laser and the number of applications. In addition to the proliferation and mitotic activity of the cancer tissue cells, we concluded that LLLT, which is frequently used in dental practice, could activate precancerous cells or increase existing cancerous tissue.
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Affiliation(s)
- C Kara
- Department of Periodontology, Faculty of Dentistry, Ordu University, Ordu, Turkey
| | - H Selamet
- Department of Periodontology, Faculty of Dentistry, Ordu University, Ordu, Turkey
| | - C Gökmenoğlu
- Department of Periodontology, Faculty of Dentistry, Ordu University, Ordu, Turkey
| | - N Kara
- Department of Pedodontics, Faculty of Dentistry, Ordu University, Ordu, Turkey
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30
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Shen J, Zhang Z, Jiang X, Guo W, Yang S. An unusual case report of an early proliferative verrucous leukoplakia. Int J Clin Exp Pathol 2017; 10:11276-11280. [PMID: 31966481 PMCID: PMC6965850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 10/30/2017] [Indexed: 06/10/2023]
Abstract
Proliferative verrucous leukoplakia (PVL) is a very rare kind of leukoplakia with great risk of cancerization. The previously reported PVL are mostly elderly patients with a longer progress. We received one rare case of an early PVL patient. The early clinical manifestations, possible pathogenic factors, clinical monitoring and treatment methods were analyzed comprehensively.
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Affiliation(s)
- Jun Shen
- Department of Oral Medicine, Stomatological Hospital, Southern Medical UniversityGuangzhou 510280, Guangdong, China
| | - Zhaoqiang Zhang
- Department of Oral Medicine, Stomatological Hospital, Southern Medical UniversityGuangzhou 510280, Guangdong, China
| | - Xiao Jiang
- Department of Oral Medicine, Stomatological Hospital, Southern Medical UniversityGuangzhou 510280, Guangdong, China
| | - Wei Guo
- Department of Oral Pathology, Stomatological Hospital, Southern Medical UniversityGuangzhou 510280, Guangdong, China
| | - Shujuan Yang
- Department of Oral Pathology, Stomatological Hospital, Southern Medical UniversityGuangzhou 510280, Guangdong, China
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31
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Yildirimturk S, Sirin Y, Soluk Tekkesin M, Gurler G, Firat D. The effects of low-level laser therapy on the healing of bone defects in streptozotocin-induced diabetic rats: A histological and morphometric evaluation. J COSMET LASER THER 2017. [PMID: 28622041 DOI: 10.1080/14764172.2017.1341048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND The aim of the present study was to evaluate the effects of low-level laser therapy (LLLT) on the healing of bone defects in rats with streptozotocin (STZ)-induced DM. METHODS 28 male Sprague-Dawley rats were used in this study. 14 animals received a single dose of STZ intraperitoneally (65 mg/kg) to induce Type I DM, whereas others were injected only with sterile saline solution. Four weeks later, standard bone defects were created in the tibiae of rats. Surgical wounds in one group from each of the diabetic and non-diabetic animals were irradiated with diode laser for every other day for 4 weeks and they were described as DM + LLLT and CONT + LLLT groups, respectively. Remaining two groups received no laser treatment. New bone formation, osteoblast and blood vessel counts were calculated in histologic sections. RESULTS DM group had significantly smaller bone area and lower blood vessel count when compared to DM + LLLT, CONT and CONT + LLLT groups (p < 0.05 for each). CONT and CONT + LLLT groups had significantly larger bone area than DM + LLLT group (p < 0.05 for both). CONCLUSIONS LLLT application promoted vascularization and new bone formation in animals with DM to a limited extent, since it was unable to support the healing process up to the level of non-diabetic animals.
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Affiliation(s)
- Senem Yildirimturk
- a Faculty of Dentistry , Oral and Maxillofacial Surgery, Istanbul University , Istanbul , Turkey
| | - Yigit Sirin
- a Faculty of Dentistry , Oral and Maxillofacial Surgery, Istanbul University , Istanbul , Turkey
| | | | - Gokhan Gurler
- c Faculty of Dentistry , Oral and Maxillofacial Surgery, Istanbul Medipol University , Istanbul , Turkey
| | - Deniz Firat
- a Faculty of Dentistry , Oral and Maxillofacial Surgery, Istanbul University , Istanbul , Turkey
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32
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Abstract
Transcranial photobiomodulation (PBM) also known as low level laser therapy (tLLLT) relies on the use of red/NIR light to stimulate, preserve and regenerate cells and tissues. The mechanism of action involves photon absorption in the mitochondria (cytochrome c oxidase), and ion channels in cells leading to activation of signaling pathways, up-regulation of transcription factors, and increased expression of protective genes. We have studied PBM for treating traumatic brain injury (TBI) in mice using a NIR laser spot delivered to the head. Mice had improved memory and learning, increased neuroprogenitor cells in the dentate gyrus and subventricular zone, increased BDNF and more synaptogenesis in the cortex. These highly beneficial effects on the brain suggest that the applications of tLLLT are much broader than at first conceived. Other groups have studied stroke (animal models and clinical trials), Alzheimer's disease, Parkinson's disease, depression, and cognitive enhancement in healthy subjects.
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Affiliation(s)
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Dermatology, Harvard Medical School, Boston, MA, USA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA, USA
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33
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Sarvestani FK, Dehno NS, Nazhvani SD, Bagheri MH, Abbasi S, Khademolhosseini Y, Gorji E. Effect of low-level laser therapy on fracture healing in rabbits. Laser Ther 2017; 26:189-193. [PMID: 29133966 DOI: 10.5978/islsm.17-or-14] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Accepted: 05/24/2017] [Indexed: 11/06/2022]
Abstract
Background and aims The purpose of this study was to investigate the effect of low-level laser therapy (LLLT) on radial bone fracture gap healing in a rabbit model. Materials Subjects and Methods Thirty male white New Zealand rabbits under general anesthesia had a 3mm slice of radial bone surgically removed. Fifteen rabbits were treated by 830 nm laser at 4 J/cm2 and 15 were used as non-treated controls. Callus development was assessed by X-ray and radiographs every 7 days for 3 weeks. Results Significant radiologic changes were observed in both groups against time (P > 0.001) or from week to week (P > 0.05). However, there was no statistical difference in radiologic scores after week 2 (P = 0.087) or week 3 (P = 0.077) between control and laser treated bone. Conclusions Findings suggest that in this study, laser treatment did not enhance callus formation nor reduce repair time of complete fracture of the radius in rabbits.
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Affiliation(s)
- Fahimeh Kamali Sarvestani
- School of rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran.,Rehabilitation Science Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nasrin Salehi Dehno
- School of rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Mohammad Hadi Bagheri
- Medical Imaging Research Center, Department of Radiology, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soheila Abbasi
- School of rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Elham Gorji
- School of rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran
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34
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Cury V, de Lima TM, Prado CM, Pinheiro N, Ariga SKK, Barbeiro DF, Moretti AI, Souza HP. Low level laser therapy reduces acute lung inflammation without impairing lung function. J Biophotonics 2016; 9:1199-1207. [PMID: 26381933 DOI: 10.1002/jbio.201500113] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 08/04/2015] [Accepted: 08/24/2015] [Indexed: 06/05/2023]
Abstract
Acute lung injury is a condition characterized by exacerbate inflammatory reaction in distal airways and lung dysfunction. Here we investigate the treatment of acute lung injury (ALI) by low level laser therapy (LLLT), an effective therapy used for the treatment of patients with inflammatory disorders or traumatic injuries, due to its ability to reduce inflammation and promote tissue regeneration. However, studies in internal viscera remains unclear. C57BL/6 mice were treated with intratracheal lipopolysaccharide (LPS) (5 mg/kg) or phosphate buffer saline (PBS). Six hours after instillation, two groups were irradiated with laser at 660 nm and radiant exposure of 10 J/cm2 . Intratracheal LPS inoculation induced a marked increase in the number of inflammatory cells in perivascular and alveolar spaces. There was also an increase in the expression and secretion of cytokines (TNF-α, IL-1β, IL-6,) and chemokine (MCP-1). The LLLT application induced a significant decrease in both inflammatory cells influx and inflammatory mediators secretion. These effects did not affect lung mechanical properties, since no change was observed in tissue resistance or elastance. In conclusion LLLT is able to reduce inflammatory reaction in lungs exposed to LPS without affecting the pulmonary function and recovery.
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Affiliation(s)
- Vivian Cury
- University of São Paulo, School of Medicine, Emergency Medicine Department, Av. Dr. Arnaldo, 455, Sala 3189, São Paulo - SP, Brazil
| | - Thais Martins de Lima
- University of São Paulo, School of Medicine, Emergency Medicine Department, Av. Dr. Arnaldo, 455, Sala 3189, São Paulo - SP, Brazil
| | - Carla Maximo Prado
- Federal University of Sao Paulo, Biological Science Department, São Paulo - SP, Brazil
| | - Nathalia Pinheiro
- University of São Paulo, School of Medicine, Emergency Medicine Department, Av. Dr. Arnaldo, 455, Sala 3189, São Paulo - SP, Brazil
| | - Suely K K Ariga
- University of São Paulo, School of Medicine, Emergency Medicine Department, Av. Dr. Arnaldo, 455, Sala 3189, São Paulo - SP, Brazil
| | - Denise F Barbeiro
- University of São Paulo, School of Medicine, Emergency Medicine Department, Av. Dr. Arnaldo, 455, Sala 3189, São Paulo - SP, Brazil
| | - Ana I Moretti
- University of São Paulo, Department of Cardio-Pulmonary, São Paulo - SP, Brazil
| | - Heraldo P Souza
- University of São Paulo, School of Medicine, Emergency Medicine Department, Av. Dr. Arnaldo, 455, Sala 3189, São Paulo - SP, Brazil
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Bidar M, Moushekhian S, Gharechahi M, Talati A, Ahrari F, Bojarpour M. The Effect of Low Level Laser Therapy on Direct Pulp Capping in Dogs. J Lasers Med Sci 2016; 7:177-183. [PMID: 28144439 DOI: 10.15171/jlms.2016.31] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: The aim of this study was to determine the histologic effect of low level laser therapy (LLLT) with or without the use of mineral trioxide aggregate (MTA) on exposed pulp tissues of dogs. Methods: Twenty-five premolar teeth in three healthy mature dogs were randomly divided into five groups. In group 1, the pulp tissue was capped with MTA. In groups 2 and 3, before capping with MTA, the exposure site was irradiated by low power lasers at 630 nm (20 mW, 150 seconds, 7.5 J/cm2) and 810 nm (peak power 80 W, average power 50 mW, 1500 Hz, 50 seconds, 6.25 J/cm2) wavelengths, respectively. In groups 4 and 5, the exposure site was irradiated similar to that described in groups 2 and 3, but the pulp tissue was covered by gold foil instead of MTA. After 2 months, the animals were sacrificed and the samples were prepared for histologic evaluation. Results: There were differences in pulpal response and dentinal barrier formation among the study groups. The morphology of pulpal tissue and the integrity of dentinal barrier and formation of odontoblastic layer were more favorable in the first three groups. The occurrence of extensive and intense inflammation and necrosis was more frequent in groups 4 and 5. Conclusion: Under the conditions used in this study, the presence of MTA as a pulp capping material was more important than laser therapy in the success of direct pulp capping (DPC) treatment. MTA proved to be an effective material either alone or in combination with laser irradiation in vital pulp therapy.
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Affiliation(s)
- Maryam Bidar
- Dental Research Center, Department of Endodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Siavash Moushekhian
- Dental Research Center, Department of Endodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Gharechahi
- Dental Materials Research Center, Department of Endodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Talati
- Dental Research Center, Department of Endodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farzaneh Ahrari
- Laser Research Center, Department of Orthodonthics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
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Abstract
Photobiomodulation (PBM), also known as low level laser therapy, has recently risen to the attention of the ophthalmology community as a promising new approach to treat a variety of retinal conditions including age-related macular degeneration, retinopathy of prematurity, diabetic retinopathy, Leber's hereditary optic neuropathy, amblyopia, methanol-induced retinal damage, and possibly others. This review evaluates the existing research pertaining to PBM applications in the retina, with a focus on the mechanisms of action and clinical outcomes. All available literature until April 2015 was reviewed using PubMed and the following keywords: "photobiomodulation AND retina", "low level light therapy AND retina", "low level laser therapy AND retina", and "FR/NIR therapy AND retina". In addition, the relevant references listed within the papers identified through PubMed were incorporated. The literature supports the conclusion that the low-cost and non-invasive nature of PBM, coupled with the first promising clinical reports and the numerous preclinical-studies in animal models, make PBM well-poised to become an important player in the treatment of a wide range of retinal disorders. Nevertheless, large-scale clinical trials will be necessary to establish the PBM therapeutic ranges for the various retinal diseases, as well as to gain a deeper understanding of its mechanisms of action.
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Affiliation(s)
- Ivayla I Geneva
- Department of Ophthalmology, State University of New York, Upstate Medical University, Center for Vision Research, Syracuse, NY 13202, USA
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Asagai Y. The effect of LLLT on bone metabolism in children with severe cerebral palsy (a secondary publication). Laser Ther 2014; 23:243-7. [PMID: 25705079 PMCID: PMC4331565 DOI: 10.5978/islsm.14-or-17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 11/05/2014] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND AIMS It is said that the average frequency of bone fracture in hospitalized children with severe cerebral palsy (unable to remain seated) is 1% (0.2 to 2.0%). Cerebral palsy patients' bones are known to be vulnerable to fracture, and refractory bone atrophy may be observed. However, the effect of low level laser therapy (LLLT) on bone density or bone metabolism has not been fully investigated. In recent years, tests for bone density or bone metabolism markers have become available. MATERIAL AND METHODS In this study, we evaluated changes in bone density and bone metabolism markers in 4 children with severe cerebral palsy who underwent LLLT for an average of 22 days. RESULTS B-ALP, a marker of ossification, increased 1 month after the start of irradiation in 3 of the 4 subjects and returned to a level close to the pre-irradiation level 2 months after the start of irradiation. In the remaining subjects in whom B-ALP failed to increase, B-ALP had been low before irradiation. Urinary N-terminal telopeptide (NTx) levels, a marker of bone resorption, decreased in 3 of the 4 subjects after the start of irradiation and remained low even 10 months later. Serum NTx levels tended to decrease in 3 of the 4 subjects. The levels of serum NTx/Crea, Deoxy-Pyridinoline (DPd) and DPd/Crea (DPd/Crea) also decreased in 3 of the 4 subjects. Transient decreases in intact parathyroid hormone (PTH) levels were observed in all 4 cases. Changes were particularly apparent in 2 cases: one with high NTx levels, which showed enhanced bone resorption, and one with high PTH levels, probably due to a vitamin D (VitD) deficiency. Although the metacarpal bone density measured by DIP was found to be lower than in normal children, there were no changes due to LLLT. CONCLUSION These results suggest that LLLT has a positive influence on bone metabolism in that it temporarily increases bone formation and suppresses bone resorption while also tending to improve secondary hyperparathyroidism caused by VitD deficiency. Enhanced bone resorption in the case with high NTx levels was noteworthy, together with marked changes in the case with high PTH levels due to VitD deficiency. These positive influences on bone metabolism merit attention as potential new indications of LLLT.
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Affiliation(s)
- Yoshimi Asagai
- Department of Orthopedic Surgery, Shinano Handicapped Children's Hospital
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Munck A, Gavazzoni MF, Trüeb RM. Use of low-level laser therapy as monotherapy or concomitant therapy for male and female androgenetic alopecia. Int J Trichology 2014; 6:45-9. [PMID: 25191036 PMCID: PMC4154149 DOI: 10.4103/0974-7753.138584] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background: Androgenetic alopecia (AGA) is the most common form of hair loss in men and in women. Currently, minoxidil and finasteride are the treatments with the highest levels of medical evidence, but patients who exhibit intolerance or poor response to these treatments are in need of additional treatment modalities. Objective: The aim was to evaluate the efficacy and safety of low-level laser therapy (LLLT) for AGA, either as monotherapy or as concomitant therapy with minoxidil or finasteride, in an office-based setting. Materials and Methods: Retrospective observational study of male and female patients with AGA, treated with the 655 nm-HairMax Laser Comb®, in an office-based setting. Efficacy was assessed with global photographic imaging. Results: Of 32 patients (21 female, 11 male), 8 showed significant, 20 moderate, and 4 no improvement. Improvement was seen both with monotherapy and with concomitant therapy. Improvement was observed as early as 3 months and was sustained up to a maximum observation time of 24 months. No adverse reactions were reported. Conclusions: LLLT represents a potentially effective treatment for both male and female AGA, either as monotherapy or concomitant therapy. Combination treatments with minoxidil, finasteride, and LLLT may act synergistic to enhance hair growth.
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Affiliation(s)
- Andréia Munck
- Institute of Dermatology Prof. R.D. Azulay, Rio de Janeiro, Brazil
| | | | - Ralph M Trüeb
- Center for Dermatology and Hair Diseases, Bahnhofplatz, Wallisellen, Switzerland
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Hodjati H, Rakei S, Johari HG, Geramizedeh B, Sabet B, Zeraatian S. Low-level laser therapy: an experimental design for wound management: a case-controlled study in rabbit model. J Cutan Aesthet Surg 2014; 7:14-7. [PMID: 24761093 PMCID: PMC3996783 DOI: 10.4103/0974-2077.129962] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Background: There is a wide array of articles in medical literature for and against the laser effect on wound healing but without discrete effect determination or conclusion. This experimental study aims to evaluate the efficacy of low-level laser therapy on wound healing. Materials and Methods: Thirty-four rabbits were randomly enrolled in two groups after creating a full thickness of 3 × 3 cm wound. The intervention group received low density laser exposure (4 J/cm2) on days 0, 3 and 6 with diode helium-neon low-intensity laser device (wl = 808 nm) and in control group moist wound dressing applied. Finally, wound-healing process was evaluated by both gross and pathological assessment. Results: Fibrin formation was the same in the two groups (P = 0.4) but epithelialisation was much more in laser group (P = 0.02). Wound inflammation of the laser group was smaller than that of the control groups but statistical significance was not shown (P = 0.09). Although more smooth muscle actin was found in the wounds of the laser group but it was not statistically significant (P = 0.3). Wound diameter showed significant decrease in wound area in laser group (P = 0.003). Conclusion: According to our study, it seems that low-level laser therapy accelerates wound healing at least in some phases of healing process. So, we can conclude that our study also shows some hopes for low level laser therapy effect on wound healing at least in animal model.
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Affiliation(s)
- Hossein Hodjati
- Trauma Research Center, General Surgery Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Siamak Rakei
- General Surgery Department, Arak University of Medical Sciences, Arak, Iran
| | - Hamed Ghoddusi Johari
- Trauma Research Center, General Surgery Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Bita Geramizedeh
- Pathology Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Babak Sabet
- Trauma Research Center, General Surgery Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sam Zeraatian
- Trauma Research Center, General Surgery Department, Shiraz University of Medical Sciences, Shiraz, Iran
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Kawano Y, Utsunomiya-Kai Y, Kai K, Miyakawa I, Ohshiro T, Narahara H. The production of VEGF involving MAP kinase activation by low level laser therapy in human granulosa cells. Laser Ther 2014; 21:269-74. [PMID: 24511196 DOI: 10.5978/islsm.12-or-15] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Accepted: 11/19/2012] [Indexed: 01/05/2023]
Abstract
OBJECTIVE The function of granulosa cells is regulated by various hormones and growth factors. Our aim is to clarify the regulation of vascular endothelial growth factor (VEGF) production via mitogen-activated protein kinase (MAPK) induced by low level laser therapy (LLLT) in human granulosa cells. METHODS A human granulosa cell line, KGN cells, were cultured and incubated after LLLT (60mW, GaAlAs 830nm). The levels of VEGF in the culture media were determined by an enzyme-linked immunosorbent assay. The activation of MAP kinase in KGN cells was detected by western blot analysis. RESULTS VEGF production was significantly increased by LLLT in a time-dependent manner. MAP kinase activity was increased by LLLT. In addition it was enhanced by LLLT and follicle-stimulating hormone (FSH) stimulation. CONCLUSIONS The results suggested that VEGF is induced by LLLT through mechanisms involving MAPK. The increase in VEGF may contribute to neovascularization, which in turn would promote various ovulation phenomena as well as follicular growth.
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Affiliation(s)
- Yasushi Kawano
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Oita, Japan
| | - Yufuko Utsunomiya-Kai
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Oita, Japan
| | - Kentaro Kai
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Oita, Japan
| | - Isao Miyakawa
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Oita, Japan
| | - Toshio Ohshiro
- Japan Medical Laser Laboratory, Shinano-machi, Tokyo, Japan
| | - Hisashi Narahara
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Oita, Japan
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Fekrazad R, Chiniforush N. Oral mucositis prevention and management by therapeutic laser in head and neck cancers. J Lasers Med Sci 2014; 5:1-7. [PMID: 25606332 PMCID: PMC4290523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
INTRODUCTION Oral mucositis is considered a severe complication in cancer patients receiving radiotherapy or chemotherapy for head and neck cancer. The aim of this review study was to assess the effect of low level laser therapy for prevention and management of oral mucositis in cancer patients. METHODS The electronic databases searched included Pubmed, ISI Web of Knowledge and Google scholar with keywords as "oral mucositis", "low level laser therapy" from 2000 to 2013. RESULTS The results of most studies showed that photobiomodulation (PBM) reduced the severity of mucositis. Also, it can delay the appearance of severe mucositis. CONCLUSION Low level laser therapy is a safe approach for management and prevention of oral mucositis.
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Affiliation(s)
- Reza Fekrazad
- Laser Research Center in Medical Sciences (LRCMS), AJA University of Medical Sciences- Laser Research Center of Dentistry (LRCD), School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Nasim Chiniforush
- Laser Research Center of Dentistry (LRCD), School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
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Kazemi Khoo N, Babazadeh K, Lajevardi M, Dabaghian FH, Mostafavi E. Application of Low-Level Laser Therapy Following Coronary Artery Bypass Grafting (CABG) Surgery. J Lasers Med Sci 2014; 5:86-91. [PMID: 25653805 PMCID: PMC4291821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
INTRODUCTION An attack of acute myocardial infarction (MI) poses the threat of great damage to cardiac tissue. Operative therapeutic modalities such as coronary artery bypass grafting (CABG) may enhance myocardial perfusion in high-grade coronary vasculature occlusions. It has been shown previously that Low-Level Laser Therapy (LLLT) significantly reduces infarct size following induction of myocardial infarction in rats and dogs. The aim of this study was to investigate the effects of LLLT on cardiac tissue healing markers following grafting operations for coronary vessel occlusion. METHODS Thirty-two cases having each two or three coronary vessel occlusions (2VD/3VD) underwent low-level laser therapy post-CABG, and 28 patients who did not undergo laser therapy were studied as a control group. Diode laser (810 nm, 500 mW) was used as LLLT protocol for 3 successive days post-CABG. Repeated measurements of blood cell count (CBC) and cardiac damage markers (CPK, CPK-MB, LDH) attained before CABG and during the 5 days of LLLT post-operatively, taken at one and 12 hours after daily laser irradiation. RESULTS In a comparison of the mean levels of the control and laser group, the variables were statistically different on 5(th) day after intervention for WBC, Neutrophil and Lymphocyte counts and WBC and lymphocyte changes. A statistically significant difference was seen in changes of CPK, CPK-mb and LDH over time P<0.001. CONCLUSION It is concluded that low-level laser irradiation after CABG surgery could decrease cardiac cellular damage and help accelerate the repair of cardiac tissue post-operatively. This may lower post-operative disability as well as bed rest period in these patients.
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Affiliation(s)
| | | | | | - Fataneh Hashem Dabaghian
- Research Institute for Islamic and Complementary Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Mostafavi
- Department of Epidemiology, Pasteur Institute of Iran, Tehran, Iran
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Abstract
BACKGROUND Platelet rich plasma (PRP) extract has shown to be a general stimulation for repair and currently used widely in various sports injury. A prospective observational study was done to assess the efficacy of autologous PRP injection in lateral epicondylitis of elbow, and compare the result with low level laser therapy. MATERIALS AND METHODS The trial was conducted at a tertiary care center for a period of 2 years. Eighty-one patients with chronic lateral epicondylitis were divided into two groups. PRP group (n = 39) and laser therapy group (n = 42). The primary analysis included Nirschl pain score, local tenderness, pain on wrist extension, grip strength, elbow swelling were clinically assessed at different interval of followup (minimum followup: 52 weeks) and; clinical and functional outcome evaluated at final followup. The statistical analysis were done. RESULTS The mean Nirschl pain score decreased significantly from baseline in PRP when compared with low level laser therapy (P ≤ 0.05). CONCLUSIONS Treatment of patients with chronic lateral epicondylitis with PRP extract reduced pain and significantly increased function, exceeding the effect of low level laser therapy on long term followup. Low-level laser therapy is better in the short term period, but on long term followup injection PRP therapy is better than laser therapy in lateral epicondylitis.
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Affiliation(s)
- Gyaneshwar Tonk
- Department of Orthopaedics, LLRM Medical College, Meerut, Uttar Pradesh, India,Address for correspondence: Dr. Gyaneshwar Tonk, Department of Orthopaedics, LLRM Medical College, Meerut, Uttar Pradesh, India. E-mail:
| | - Anish Kumar
- Department of Orthopaedics, LLRM Medical College, Meerut, Uttar Pradesh, India
| | - Amit Gupta
- Department of Orthopaedics, LLRM Medical College, Meerut, Uttar Pradesh, India
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Farivar S, Malekshahabi T, Shiari R. Biological effects of low level laser therapy. J Lasers Med Sci 2014; 5:58-62. [PMID: 25653800 PMCID: PMC4291815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The use of low level laser to reduce pain, inflammation and edema, to promote wound, deeper tissues and nerves healing, and to prevent tissue damage has been known for almost forty years since the invention of lasers. This review will cover some of the proposed cellular mechanisms responsible for the effect of visible light on mammalian cells, including cytochrome c oxidase (with absorption peaks in the Near Infrared (NIR)). Mitochondria are thought to be a likely site for the initial effects of light, leading to increased ATP production, modulation of reactive oxygen species, and induction of transcription factors. These effects in turn lead to increased cell proliferation and migration (particularly by fibroblasts).
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Affiliation(s)
- Shirin Farivar
- Department of Genetics, Faculty of Biological Science, Shahid Beheshti University (GC), Tehran, Iran
| | - Talieh Malekshahabi
- Department of Genetics, Faculty of Biological Science, Shahid Beheshti University (GC), Tehran, Iran
| | - Reza Shiari
- Departmentof Pediatrics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Vannucci MG, Dreyer J, Kreisner P, Gaião L, Moraes JFD, de Oliveira MG. Histological and physical analysis of bone neoformation by osteogenesis distraction: A preliminary report. Ann Maxillofac Surg 2013; 1:26-31. [PMID: 23482632 PMCID: PMC3591033 DOI: 10.4103/2231-0746.83150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION Osteogenesis distraction (OD) is a mainstream technique in maxillofacial surgical reconstruction with varied applications. OD technique employs a distractor with the aim to get new bone in the site of interest. Osseous maturation time is necessary before the device can be removed and few patients' complaint of related discomfort, especially when these devices are external, and induces superficial infections, paresthesia, hypertrophic scars and social relationship difficulties. The use of Low Level Laser Therapy (LLLT) has been proved beneficial to soft tissue and osseous repairs. MATERIALS AND METHOD 12 rabbits were randomly divided in to two groups. In all animals, distractor was placed and one group was exposed to LLLT while the other group served as control. After consolidation, animals were sacrificed, the new bone formed were subjected to investigations including histomorphometric, physical analysis and tomographical analysis. Statistical analyses were performed using SPSS software. RESULT Newly formed bone was significantly different between the groups. The physical properties of the neobone were comparatively better when the animals were exposed to LLLT with varying statistical significance. CONCLUSION The results obtained with smaller sample size in this study need to be interpreted with care. The results of this preliminary pilot study encourage the use of LLLT during healing period. However the histological, tomographical and physical findings need to be ascertained using a larger sample size to study the bio-stimulatory effects with laser therapy from basics to clinical relevance on wound and bone healing.
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Avci P, Gupta A, Sadasivam M, Vecchio D, Pam Z, Pam N, Hamblin MR. Low-level laser (light) therapy (LLLT) in skin: stimulating, healing, restoring. Semin Cutan Med Surg 2013; 32:41-52. [PMID: 24049929 PMCID: PMC4126803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Low-level laser (light) therapy (LLLT) is a fast-growing technology used to treat a multitude of conditions that require stimulation of healing, relief of pain and inflammation, and restoration of function. Although skin is naturally exposed to light more than any other organ, it still responds well to red and near-infrared wavelengths. The photons are absorbed by mitochondrial chromophores in skin cells. Consequently, electron transport, adenosine triphosphate nitric oxide release, blood flow, reactive oxygen species increase, and diverse signaling pathways are activated. Stem cells can be activated, allowing increased tissue repair and healing. In dermatology, LLLT has beneficial effects on wrinkles, acne scars, hypertrophic scars, and healing of burns. LLLT can reduce UV damage both as a treatment and as a prophylactic measure. In pigmentary disorders such as vitiligo, LLLT can increase pigmentation by stimulating melanocyte proliferation and reduce depigmentation by inhibiting autoimmunity. Inflammatory diseases such as psoriasis and acne can also be managed. The noninvasive nature and almost complete absence of side effects encourage further testing in dermatology.
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Affiliation(s)
- Pinar Avci
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston MA
- Department of Dermatology, Harvard Medical School, Boston MA
| | - Asheesh Gupta
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston MA
- Department of Dermatology, Harvard Medical School, Boston MA
- Defence Institute of Physiology & Allied Sciences, Delhi, India
| | - Magesh Sadasivam
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston MA
- Department of Dermatology, Harvard Medical School, Boston MA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA
| | - Daniela Vecchio
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston MA
- Department of Dermatology, Harvard Medical School, Boston MA
| | - Zeev Pam
- Aripam Medical Center, Ashdod, Israel
| | - Nadav Pam
- Aripam Medical Center, Ashdod, Israel
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston MA
- Department of Dermatology, Harvard Medical School, Boston MA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA
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Aghamohammadi D, Eidi M, Lotfi A, Hosseinzadeh H, Movasaghi R, Motighini N, Ayoub Bouraima S. Effect of low level laser application at the end of surgery to reduce pain after tonsillectomy in adults. J Lasers Med Sci 2013; 4:79-85. [PMID: 25606312 PMCID: PMC4281977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
INTRODUCTION Tonsillectomy is among commonest otorhinolaryngologic surgeries. Many methods have been used to control post surgical pain, but despite it, pain is still one of the problems related to this operation. Recently, due to the non invasiveness of low level lasers, this modality has attracted attention. The purpose of this study is to evaluate the effects of low level laser irradiation at the end of surgery on reduction of pain after tonsillectomy in adults. METHODS In a clinical trial, 60 adult patients, candidates for tonsillectomy were randomly assigned to two groups, A and B, and both groups were anesthetized similarly by the same technique. At the end of surgery, in the case group, the tonsils' bed were irradiated by infrared laser with 980nm wavelength, 100Hz, 4J/cm(2) from the infra mandibular angle. In the control group, the tonsils' bed had laser therapy with a turned off probe. Following laser treatment, the patients were reversed and extubated and consciousness achieved, pain and odynophagia were assessed at 2, 4, 6, 8, 12 and 24h post surgery based on visual analog scale for pain (VAS) and analgesic consumption. RESULTS In the laser group frequency of patients with pain sensation in each evaluated hour was lower than in the control group. The amount of pain decrease and analgesic consumption reduction was significantly higher in patients who received laser (P=0.01). CONCLUSION Based on the results of this study, use of low level lasers is effective in reducing tonsillectomy post surgical pain in adults.
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Affiliation(s)
| | - Mohammad Eidi
- Department of Anesthesia, Tabriz University of Medical Sciences, Tabriz,Iran
| | - Alireza Lotfi
- Department of Otorhinolaryngology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamzeh Hosseinzadeh
- Department of Anesthesia, Tabriz University of Medical Sciences, Tabriz,Iran
| | - Reza Movasaghi
- Department of Anesthesia, Tabriz University of Medical Sciences, Tabriz,Iran
| | - Negar Motighini
- Department of Anesthesia, Tabriz University of Medical Sciences, Tabriz,Iran
| | - Stephane Ayoub Bouraima
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Batinjan G, Filipović Zore I, Rupić I, Bago Jurič I, Zore Z, Gabrić Pandurić D. Assessing Health-Related Quality of Life with Antimicrobial Photodynamic Therapy (APDT) and Low Level Laser Therapy (LLLT) after Third Molar Removal. J Lasers Med Sci 2013; 4:120-126. [PMID: 25606319 PMCID: PMC4295359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
INTRODUCTION The purpose of this study was to evaluate the antimicrobial photodynamic therapy (APDT) and low level laser therapy (LLLT) on wound healing, pain intensity, swelling problems, halitosis and the postoperative usage of analgesics after surgical removal of lower third molars. METHODS One hundred and fifty patients, randomly divided into three groups were selected (50 per each group). The P1 group received the APDT after a third molar surgery, the P2 group received the LLLT and the C group (control group) was without any additional therapy after surgery. A photoactive substance was applied in the APDT study group before suturing. After 60 seconds the photosensitive substance was thoroughly washed with saline water and the laser light was applied in two intervals (30 seconds each). The irradiation power was 50 mW while the wavelength was 660 nm. The laser therapy in P2 group was performed before suturing and the laser light was applied also in two intervals (90 seconds each), the irradiation power was 90 mW while the wavelength was the same as in the first group - 660 nm. Postoperative follow-ups were scheduled on the third and the seventh day in patients who received laser therapy. RESULTS The results of the postoperative evaluation showed that there was a statistically significant difference in the postoperative wound healing, pain intensity, swelling problems, halitosis and analgesics intake between patients in all three groups (p<0.001). The patients that were subjected to APDT (P1) had the least postoperative problems. After the laser therapy (P1 and P2) wound healing was without any complications, opposite from the patients from the C group (p<0.001). Postoperative application of a laser therapy significantly reduced patient's use of analgesics over the observed period of time (p<0.001). CONCLUSION Both modalities of laser therapy significantly reduced postoperative problems after surgical removal of third lower molars with the best results in both laser groups.
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Affiliation(s)
- Goran Batinjan
- University of Zagreb, School of Dental Medicine, Department of Oral Surgery, Zagreb, Croatia
| | - Irina Filipović Zore
- University of Zagreb, School of Dental Medicine, Department of Oral Surgery, Zagreb, Croatia
| | - Ivana Rupić
- University of Zagreb, School of Dental Medicine, Department of Oral Surgery, Zagreb, Croatia
| | - Ivona Bago Jurič
- University of Zagreb, School of Dental Medicine, Department of Endodontics and Restorative Dentistry, Zagreb, Croatia
| | - Zvonimir Zore
- University Clinical Hospital Center, Sisters of Mercy, Department of Surgical Oncology, Zagreb, Croatia
| | - Dragana Gabrić Pandurić
- University of Zagreb, School of Dental Medicine, Department of Oral Surgery, Zagreb, Croatia
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Huang YY, Gupta A, Vecchio D, Bil de Arce VJ, Huang SF, Xuan W, Hamblin MR. Transcranial low level laser (light) therapy for traumatic brain injury. J Biophotonics 2012; 5:827-37. [PMID: 22807422 PMCID: PMC5379852 DOI: 10.1002/jbio.201200077] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 06/12/2012] [Accepted: 06/13/2012] [Indexed: 05/08/2023]
Abstract
We review the use of transcranial low-level laser (light) therapy (LLLT) as a possible treatment for traumatic-brain injury (TBI). The basic mechanisms of LLLT at the cellular and molecular level and its effects on the brain are outlined. Many interacting processes may contribute to the beneficial effects in TBI including neuroprotection, reduction of inflammation and stimulation of neurogenesis. Animal studies and clinical trials of transcranial-LLLT for ischemic stroke are summarized. Several laboratories have shown that LLLT is effective in increasing neurological performance and memory and learning in mouse models of TBI. There have been case report papers that show beneficial effects of transcranial-LLLT in a total of three patients with chronic TBI. Our laboratory has conducted three studies on LLLT and TBI in mice. One looked at pulsed-vs-continuous wave laser-irradiation and found 10 Hz to be superior. The second looked at four different laser-wavelengths (660, 730, 810, and 980 nm); only 660 and 810 nm were effective. The last looked at different treatment repetition regimens (1, 3 and 14-daily laser-treatments).
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Affiliation(s)
- Ying-Ying Huang
- Wellman Center for Photomedicine, Massachusetts General Hospital, BAR414, 40 Blossom Street, Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
- Aesthetic and Plastic Center of Guangxi Medical University, Nanning, China
| | - Asheesh Gupta
- Wellman Center for Photomedicine, Massachusetts General Hospital, BAR414, 40 Blossom Street, Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
- Defence Institute of Physiology and Allied Sciences, Timarpur, Delhi-110 054, India
| | - Daniela Vecchio
- Wellman Center for Photomedicine, Massachusetts General Hospital, BAR414, 40 Blossom Street, Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
| | - Vida J. Bil de Arce
- Wellman Center for Photomedicine, Massachusetts General Hospital, BAR414, 40 Blossom Street, Boston, MA 02114, USA
| | - Shih-Fong Huang
- Wellman Center for Photomedicine, Massachusetts General Hospital, BAR414, 40 Blossom Street, Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
- Taipei Veterans General Hospital, Beitou District, Taipei City, Taiwan 112
| | - Weijun Xuan
- Wellman Center for Photomedicine, Massachusetts General Hospital, BAR414, 40 Blossom Street, Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
- Department of Otolaryngology, Traditional Chinese Medical University of Guangxi, Nanning, China
| | - Michael R. Hamblin
- Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
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Abstract
Background: Tissue healing is a complex process that involves local and systemic responses. The use of low level laser therapy for wound healing has been shown to be effective in modulating both local and systemic response. Aim: The aim of this study was to accelerate and facilitate wound healing and reduce scar formation and wound contraction of an open wound by a low level laser. Materials & Methods: Twenty adult male rabbits, lepus cuniculus demostica, were brought from a Basrah local market and raised under proper management conditions in Basrah Veterinary Medicine College. The age of these rabbits ranged between 8-10 months and their body weight was 1.5-2 Kg. The rabbits were divided into two groups, group I (Control) and group II (Treated). General anesthesia was provided by a mixture of Xylazine and Ketamine at a ratio of 1:0.5m intramuscularly. Selected sites were shaved, cleaned and disinfected. A wound of 4-cm length and 3-cm depth was made on the gluteal region; six hours later, the wound was treated with gallium aluminum and an arsenide diode laser with a power output of 10m at a wavelength of 890nm in pulsed nods, with a frequency of 20 KLTZ. The wound exposure to the laser was once a day at 890 nm wavelength for 5 minutes over a 7-day period. Histopathological study was obtained regarding the wound depth and edge of the skin on the 3rd, 7th and 14th days. Results: The histopathological finding of group I at three days postoperative showed hemorrhage with inflammatory cell infiltration, mainly neutrophils as well as congested blood vessels in the gap. At seven days, the gap contained necrotized neutrophils together with hemolysis and granulation tissue under the dermis tissue. Hemolysis was seen between the muscle fibers. At 14 days, there was irregular fibrous connective tissue proliferation with congested blood vessels seen in the gap with mononuclear cell infiltration. In group II at three days postoperative, severe inflammatory cell infiltration was observed, mainly neutrophils with proliferation of fibroblasts from a few fibrous connective tissues. On the 7th day, the main lesion was characterized by severe granulation tissue that consisted of proliferation of fibrous connective tissue and congested blood vessels in the gap of the incision with mononuclear cell infiltration. Conclusions: The study found that low level laser therapy (II) was effective in open wounds, which showed better regeneration and faster restoration of structural and functional integrity as compared to the control group.
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Affiliation(s)
- Adel J Hussein
- Department of Anatomy & Histology, College of Veterinary, Basrah University, Basrah, Iraq
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