1
|
Alves JC, Jorge P, Santos A. The Effect of Photobiomodulation Therapy on Inflammation Following Dental Prophylaxis. J Vet Dent 2024; 41:26-30. [PMID: 36632039 DOI: 10.1177/08987564221150525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
To evaluate the effectiveness of photobiomodulation therapy (PBMT) in reducing gingivitis following professional dental prophylaxis in dogs in a prospective, randomly controlled, double-blind study. The study included 47 dogs (male n = 23, female n = 24), with a mean age of 6.5 ± 2.6 years and a bodyweight of 28.9 ± 5.3 kg. Breeds included: Belgian Malinois Shepherd Dogs (n = 23), German Shepherd Dogs (n = 14), Labrador Retriever (n = 4), and Dutch Shepherd Dogs (n = 3). The left side of the mouth was treated by performing dental prophylaxis (control group). The right side received dental prophylaxis and a single session of PBMT using a Class IV therapeutic laser (treatment group). Each side was graded individually for periodontal disease (PD), gingivitis, and calculus. Follow-up observations were conducted on days 1, 3, 8, and 15 post-treatment. Results were compared using a Mann-Whitney Test. Multiple regression was run to predict PD, gingivitis, and calculus scores using age, sex, and breed. A p < .05 was considered significant. The PBMT group (PG) showed significantly lower gingivitis scores from day 1 to 15 post-treatment. PD had an increasing prevalence with age. Age and breed contributed to the prediction of PD, gingivitis, and calculus grading. This study showed that PBMT significantly reduced the grade of gingivitis following dental prophylaxis, and may be a useful adjuvant procedure following dental prophylaxis.
Collapse
Affiliation(s)
- João C Alves
- Divisão de Medicina Veterinária, Guarda Nacional Republicana, Lisbon, Portugal
- MED - Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Évora, Portugal
| | - Patricia Jorge
- Divisão de Medicina Veterinária, Guarda Nacional Republicana, Lisbon, Portugal
| | - Ana Santos
- Divisão de Medicina Veterinária, Guarda Nacional Republicana, Lisbon, Portugal
| |
Collapse
|
2
|
Watson AH, Brundage CM. Veterinary Dental Photobiomodulation: Assessing Post-Treatment Gingival Inflammation in Canines. Photobiomodul Photomed Laser Surg 2023; 41:560-568. [PMID: 37788452 DOI: 10.1089/photob.2023.0065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023] Open
Abstract
Objective: This research aims to determine the effect photobiomodulation treatment has on oral inflammation after routine dental prophylaxis in canines. Background: Photobiomodulation therapy after dental procedures has been documented to reduce inflammation in human and animal models. Methods: Canines were randomly assigned into three groups: control group (CG; n = 15), left side treated group (LTG; n = 15), and right side treated group (RTG; n = 15). The canines in the treatment groups received four points of irradiation [GaAlInP-650 nm, continuous wave (CW), 0.1 W, 0.2 W/cm2, 100 sec, 10 J, 20 J/cm2]. The gingiva was evaluated by a veterinary investigator blinded to the treatment groups for erythema and edema on the day following treatment. Student's t-test and Student's paired t-test were used for data analysis. Results: Reductions in composite inflammation (p = 0.008) and erythema (p = 0.030) were observed in the LTG relative to the CG at the location of the left dental arcade. Reductions in composite inflammation (p = 0.025) and erythema (p = 0.013) were also observed in the combined treated arcades of the LTG and RTG when compared to the CG. Conclusions: The results indicate that the canines who received a single photobiomodulation treatment on the left dental arcade demonstrated a decrease in inflammation and erythema.
Collapse
Affiliation(s)
- Andrea H Watson
- Department of Animal and Veterinary Sciences, California State Polytechnic University, Pomona, California, USA
| | - Cord M Brundage
- Department of Biology, University of Wisconsin La Crosse, La Crosse, Wisconsin, USA
| |
Collapse
|
3
|
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] [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.
Collapse
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
| |
Collapse
|
4
|
Evaluation of the Tooth Surface after Irradiation with Diode Laser Applied for Removal of Dental Microorganisms from Teeth of Patients with Gingivitis, Using X-ray Photoelectron (XPS) and Optical Profilometry (OP). J Clin Med 2022; 11:jcm11226840. [PMID: 36431317 PMCID: PMC9697199 DOI: 10.3390/jcm11226840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/17/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Gingivitis is accompanied by microorganisms, including pathogens, which must be eliminated to speed up the treatment of inflammation. Laser irradiation may be one of the safe methods for reducing tissue contamination on the tooth surface. The aim of the study was the assessment of the tooth surface in patients with gingivitis after the use of a diode laser to eliminate microorganisms living there. In the first stage of the research, microorganisms were isolated (Candida albicans, C. guilliermondii, Escherichia coli, Haemophilus parainfluenzae, Klebsiella oxytoca, Neisseria subflava, Rothia dentocariosa, Rothia mucilaginosa, Streptococcus pneumoniae) from three patients with gingivitis, their identification confirmed using the MALDI-TOF MS technique (matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry). Then, the irradiation process with a diode laser was optimized to a wavelength of 810 nm ± 10 nm in five variants to reduce microorganisms on the tooth. The tooth surface was analyzed by X-ray photoelectron spectroscopy (XPS) and optical profilometry (OP) before and after irradiation. 103 to 106 CFU were detected on a 0.4 cm2 tooth area. Nine types of bacteria and two types of fungi dominated among the microorganisms. The laser at the most effective biocidal dose of 25 W/15.000 Hz/10 µs, average = 3.84 W, with three uses after 15 s, increased the reduction of fungi from 57.97% to 93.80%, and bacteria from 30.67% to 100%. This dose also caused a decrease in the degree of oxidation and in the effect of smoothing on the treated surfaces.
Collapse
|
5
|
Rathod A, Jaiswal P, Bajaj P, Kale B, Masurkar D. Implementation of Low-Level Laser Therapy in Dentistry: A Review. Cureus 2022; 14:e28799. [PMID: 36225465 PMCID: PMC9534528 DOI: 10.7759/cureus.28799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 09/05/2022] [Indexed: 11/28/2022] Open
Abstract
A type of light therapy known as low-level laser therapy (LLLT) uses only one wavelength of light. Low-level lasers (LLL) do not have a warming effect on the tissues; instead, they have an effect called photobiostimulation. LLL do not evaporate the tissue. The use of LLL to manage a range of illnesses is known as LLLT. Helium-neon lasers are an illustration of an LLLT product. Gallium arsenide, the infrared semiconductor made of gallium aluminum arsenide, is also an example. The performance powers range from 50 to 500 mW with electromagnetic spectrum wavelengths in the red and near-infrared region spanning from 630 to 980 nm and pulsed or continuous-wave emission. In periodontics, LLLT has gained prominence for several applications, including wound healing and pain relief after non-surgical and surgical procedures.
Collapse
|
6
|
Glass GE. Photobiomodulation: A review of the molecular evidence for low level light therapy. J Plast Reconstr Aesthet Surg 2020; 74:1050-1060. [PMID: 33436333 DOI: 10.1016/j.bjps.2020.12.059] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 11/18/2020] [Accepted: 12/19/2020] [Indexed: 12/22/2022]
Abstract
Light energy is harnessed for therapeutic use in a number of ways, most recently by way of photobiomodulation (PBM). This phenomenon is a cascade of physiological events induced by the nonthermal exposure of tissue to light at the near infrared end of the visible spectrum. Therapeutic PBM has become a highly commercialized interest, marketed for everything from facial rejuvenation to fat loss, and diode-based devices are popular in both the clinic setting and for use at home. The lack of regulatory standards makes it difficult to draw clear conclusions about efficacy and safety but it is crucial that we understand the theoretical basis for PBM, so that we can engage in an honest dialogue with our patients and design better clinical studies to put claims of efficacy to the test. This article presents a summary of the science of PBM and examines the differences between laser light, on which much of the preclinical evidence is based and light from diodes, which are typically used in a clinical setting.
Collapse
Affiliation(s)
- Graeme E Glass
- Department of Surgery, Sidra Medicine, Doha, Qatar; Chair, laser safety committee, Sidra Medicine, Doha, Qatar; Weill Cornell Medical College, New York and Qatar.
| |
Collapse
|
7
|
Dalvi S, Benedicenti S, Hanna R. Effectiveness of Photobiomodulation as an Adjunct to Nonsurgical Periodontal Therapy in the Management of Periodontitis- A Systematic Review of in vivo Human Studies. Photochem Photobiol 2020; 97:223-242. [PMID: 33098680 DOI: 10.1111/php.13348] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 10/04/2020] [Accepted: 10/20/2020] [Indexed: 12/11/2022]
Abstract
Photobiomodulation therapy (PBMT) has anti-inflammatory, analgesic and regenerative properties. This systematic review aimed to critically appraise the published data of in vivo human randomized clinical trials (RCTs), and present a comprehensive overview of the efficacy of PBMT, as an adjunct to the nonsurgical periodontal therapy (NSPT) in the management of periodontitis. The systematic review protocol is registered in the Prospective Register Of Systematic Reviews (PROSPERO) (www.crd.york.ac.uk/PROSPERO/; ref CRD 42020169108). With the help of the appropriate key words, structured electronic and manual search strategies were applied to gather the relevant published data on in vivo human RCTs based on this topic. Seventeen papers that met the eligibility criteria were included in this review and subjected to a qualitative assessment. Current evidence lacks adequate information regarding the photobiomodulation (PBM) dosimetry, which is fundamental in establishing a standardized and replicable protocol for future researches. Furthermore, substantial discrepancies in the study methodology and a high risk of bias, arising from the majority of the included papers, abet to the inferior quality of these studies. Ultimately, there is an urgent necessity to conduct further well-designed RCTs in order to determine the effectiveness of PBMT, if any, by taking into consideration the abovementioned confounding factors.
Collapse
Affiliation(s)
- Snehal Dalvi
- Department of Surgical Sciences and Integrated Diagnostics, Laser Therapy Centre, University of Genoa, Genoa, Italy.,Department of Periodontology, Swargiya Dadasaheb Kalmegh Smruti Dental College and Hospital, Nagpur, Maharashtra, India
| | - Stefano Benedicenti
- Department of Surgical Sciences and Integrated Diagnostics, Laser Therapy Centre, University of Genoa, Genoa, Italy
| | - Reem Hanna
- Department of Surgical Sciences and Integrated Diagnostics, Laser Therapy Centre, University of Genoa, Genoa, Italy.,Department of Oral Surgery, University of Genoa and King's College, London, UK
| |
Collapse
|
8
|
Watson AH, Brundage CM. Photobiomodulation as an Inflammatory Therapeutic Following Dental Prophylaxis in Canines. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2020; 37:276-281. [PMID: 31084563 DOI: 10.1089/photob.2018.4614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Objective: The aim of this study was to determine if a single photobiomodulation treatment can reduce oral erythema and edema following routine dental prophylaxis in canines. Background: Photobiomodulation therapy has been documented to accelerate healing time through mitigation of erythema and edema in human and veterinary patients. Methods: Canine patients were randomly assigned into three groups: CG (Control, n = 9, mock gingiva treatment without irradiation), LTG (left side treated, n = 8, irradiation of left upper and lower dental arcade), and RTG (right side treated, n = 7, irradiation of right upper and lower dental arcade). Immediately following anesthetized dental prophylaxis, the canines in the RTG and LTG received four points of irradiation (GaAlInP-650 nm, continuous wave, 0.1 W, 0.2 W/cm2, 100 sec, 10 J, 20 J/cm2). Erythema and edema along the gingival surface of each dental arcade were scored 24 h after treatment by a blinded veterinary evaluator. Analysis of variance and Bonferroni correction were used for data analysis. Results: Using a composite evaluation, there was significantly lower inflammation scores for the RTG (p = 0.017) and LTG (p = 0.025) relative to the CG at the location of the lower right dental arcade. Evaluating erythema individually, a significant reduction was found in the LTG (p = 0.049) when compared with the CG for the lower left dental arcade. Conclusions: Despite the limitations in this study, the canines who received a single photobiomodulation treatment demonstrated some degree of reduction in oral inflammation and erythema following dental prophylaxis.
Collapse
Affiliation(s)
- Andrea H Watson
- Department of Animal and Veterinary Sciences, California State Polytechnic University, Pomona, California
| | - Cord M Brundage
- Department of Animal and Veterinary Sciences, California State Polytechnic University, Pomona, California
| |
Collapse
|
9
|
Gholami L, Asefi S, Hooshyarfard A, Sculean A, Romanos GE, Aoki A, Fekrazad R. Photobiomodulation in Periodontology and Implant Dentistry: Part 1. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2019; 37:739-765. [PMID: 31750783 DOI: 10.1089/photob.2019.4710] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
(Part 2 of this article can be located at www.liebertpub.com/doi/10.1089/photob.2019.4731.) Objective: Finding evidence-based treatment strategies for low-level light therapy (LLLT) and the correct incorporation of these treatment methods in the clinical practice of periodontics. Background: Photobiomodulation has been shown to have biostimulatory, anti-inflammatory and analgesic effects that can be beneficial in periodontal and dental implant treatment procedures. Methods: In this review we have addressed some clinical questions regarding the potential clinical application of low-level light irradiation and its photobiomodulatory effects in periodontology and implantology. The literature was searched for in vivo (animal or clinical) articles written in English in four electronic databases of PubMed, Scopus, Google Scholar, and Cochrane Library until April 2019. Only studies with low irradiation doses without any thermal effects used only for their photobiomodulatory purposes were included. Results: We were able to find relevant studies for all of our questions, and positive effects for the application of light therapy were reported in most of the studies. However, there is still great deal of heterogeneity in terms of study designs and most importantly in light irradiation devices and the parameters used. Owing to this issue it was not possible to reach specific evidence-based irradiation protocols for the questions addressed in this review. Conclusions: Based on our search results, an obvious positive effect of LLLT on stimulation of healing of periodontal soft and hard tissues and reduction of inflammation can be seen. Future well-designed randomized control studies with the same irradiation settings and systematic reviews evaluating the studies found on the questions mentioned are necessary to reach evidence-based recommendations.
Collapse
Affiliation(s)
- Leila Gholami
- Dental Implants Research Center, Department of Periodontology, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Sohrab Asefi
- Department of Orthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Amirarsalan Hooshyarfard
- Dental Implants Research Center, Department of Periodontology, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Anton Sculean
- Department of Periodontology, School of Dentistry, University of Bern, Bern, Switzerland
| | - Georgios E Romanos
- Department of Periodontology, School of Dental Medicine, Stony Brook University, Stony Brook, New York
| | - Akira Aoki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Reza Fekrazad
- Radiation Sciences Research Center, Laser Research Center in Medical Sciences, AJA University of Medical Sciences, Tehran, Iran.,International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| |
Collapse
|
10
|
Zhang J, Liang H, Zheng Y, Wang D, Xia J, Peng W, Cheng K, Wang L, Liu Y, Peng W, Li Q. Photodynamic therapy versus systemic antibiotic for the treatment of periodontitis in a rat model. J Periodontol 2019; 90:798-807. [PMID: 30632612 DOI: 10.1002/jper.18-0305] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 12/22/2018] [Accepted: 12/26/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND To compare the therapeutic effect of photodynamic therapy (PDT) with Toluidine blue O hydrogel versus systemic antibiotic (SA) in treating periodontitis on rats. METHODS Thirty-two Wistar rats were divided into four groups and treated differently: Negative control (NC) group, normal rats; positive control (PC) group, rats with periodontitis; SA group, rats with periodontitis treated with systemic antibiotic; PDT group, rats with periodontitis treated with PDT. After treatment, gingival sulcus bacterial load was measured by counting the colony forming units per milliliter (CFU mL-1 ). The tooth and periodontal tissues were histologically processed to analyze histological and immunohistochemical profile. Gingival samples were obtained to quantify interleukin-1 beta (IL-1β) and tumor necrosis factor-alpha (TNF-α) levels. RESULTS Gingival sulcus bacteria load is significantly lower in PDT group compared with the SA group. The histological analysis showed that some extremely effective repair signs of periodontal tissue were presented in PDT group, such as no periodontal pocket, no bone resorption, few inflammatory cells, massive fibroblasts and collagen fibers. Several effective repair signs of periodontal tissue were also observed in SA group, such as shallow periodontal pocket, small amount of inflammatory cells, substantial fibroblasts and collagen fibers. There were lower cyclooxygenase-2, matrix metalloproteinase -8 (MMP-8) and RANK immunolabeling, higher osteoprotegerin immunolabeling in PDT group compared with SA group. The IL-1β and TNF-α levels in PDT group were lower than those in NC group, but higher than those in SA group. CONCLUSION PDT was effective to treat experimental periodontitis and was superior to systemic metronidazole as a treatment for periodontitis.
Collapse
Affiliation(s)
- Jianxing Zhang
- Department of Stomatology, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, China
| | - Hui Liang
- Collaborative Innovation Center of Yangtze River Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China.,College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Yixin Zheng
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Dongcai Wang
- College of mechanical engineering, Zhejiang University of Technology, Hangzhou, China
| | - Jiang Xia
- College of mechanical engineering, Zhejiang University of Technology, Hangzhou, China
| | - Wenming Peng
- College of mechanical engineering, Zhejiang University of Technology, Hangzhou, China
| | - Kangjie Cheng
- College of mechanical engineering, Zhejiang University of Technology, Hangzhou, China
| | | | - Yunfeng Liu
- College of mechanical engineering, Zhejiang University of Technology, Hangzhou, China
| | - Wei Peng
- College of mechanical engineering, Zhejiang University of Technology, Hangzhou, China
| | - Qingyong Li
- Collaborative Innovation Center of Yangtze River Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China.,College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| |
Collapse
|
11
|
Amjadi A, Mirmiranpor H, Khandani S, Sobhani SO, Shafaee Y. Intravenous Laser Wavelength Irradiation Effect on Interleukins: IL-1α, IL-1β, IL6 in Diabetic Rats. Laser Ther 2019; 28:267-273. [PMID: 32255918 DOI: 10.5978/islsm.19-or-18] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 10/25/2019] [Indexed: 12/21/2022]
Abstract
Background and aims The main purpose of this investigation in Low-Level Laser Therapy (LLLT) on diabetic rats is laser wavelength effect on interleukins: IL-1α, IL-1β, IL6. Materials Subjects and Methods At first, diabetes was induced in Wistar rats by streptozotocin (STZ) injection. Then, by intravenous laser therapy, the rats were irradiated by four continuous wave lasers: IR (λ = 808 nm), Red (λ = 638 nm), Green (λ = 532 nm) and Blue (λ= 450 nm) to compare the related laser wavelength effect on different interleukins. The inflammatory parameters were measured 2,6 and 24 hours after laser therapy from blood samples and plotted for different laser wavelengths. Results The results show a decrease in all the above parameters by different laser irradiation in comparison to non-radiated diabetic control ones. More importantly with constant laser energy as the laser wavelength decreases, it affects more efficiently on lowering the above parameters. Conclusions we can conclude from our data on diabetic rats that in intravenous LLLT, with constant laser energy, shorter wavelengths like Blue (λ= 450 nm) is more effective than longer wavelengths such as Red (λ = 638 nm) and IR (λ = 808 nm) lasers to lower the level of interleukins toward non-diabetic ones.
Collapse
Affiliation(s)
- A Amjadi
- (Corresponding Author) Laser and Medical Physics Lab, Department of Physics, Sharif University of Technology, Tehran, Iran, E-mail: , Tel: +98-2166164521 Fax:+98-2166022711
| | - H Mirmiranpor
- Endocrinology and Metabolism Research Center (EMRC), Valiasr Hospital, School of Medicine, Tehran University of Medical Science, Tehran, Iran, E-mail: , Tel: +98-9123388654
| | - S Khandani
- Laser and Medical Physics Lab, Department of Physics, Sharif University of Technology, Tehran, Iran, E-mail: , Tel.: +98-9155828735
| | - S O Sobhani
- Laser and Medical Physics Lab, Department of Physics, Sharif University of Technology, Tehran, Iran, E-mail: , Tel.: +32-494903687
| | - Y Shafaee
- Laser and Medical Physics Lab, Department of Physics, Sharif University of Technology, Tehran, Iran, E-mail: , Tel.: +98-9101030472
| |
Collapse
|
12
|
Yuan W, Hou S, Jia H, Qiu Z, Liu T, Chen X, Li H, Sun Y, Liang L, Sui X, Zhao X, Zhao Z. Ketotifen fumarate attenuates feline gingivitis related with gingival microenvironment modulation. Int Immunopharmacol 2018; 65:159-173. [PMID: 30316074 DOI: 10.1016/j.intimp.2018.10.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 10/02/2018] [Accepted: 10/04/2018] [Indexed: 11/17/2022]
Abstract
Gingivitis is evidenced by inflammation of the free gingiva, and still reversible. If left untreated, it may then progress to periodontitis. In the present study, the therapeutical effect of ketotifen fumarate on gingivitis was explored. Domestic cats with varying degrees of gingivitis naturally were enrolled in this study. Subgroups of animals were treated twice daily for one week with or without ketotifen fumarate (5 mg/kg). Effects of ketotifen fumarate were measured on gingival index, cells accumulation, mediators release, receptor-ligand interaction, oxidative stress, MAPK and NF-κB pathways, epithelial barrier and apoptosis. Ketotifen fumarate attenuated the initiation and progression of gingivitis, inhibited the infiltrations of mast cells, B lymphocytes, T lymphocytes, macrophages, neutrophils and eosinophils as well as the release of IgE, β-hexosaminidase, tryptase, chymase, TNF-α, IL-4, and IL-13, influenced endothelial cells, fibroblasts and epithelial cells proliferation and apoptosis, and induced Th2 cells polarization, where ketotifen fumarate also might affect their interactions. Ketotifen fumarate reduced the oxidative stress, and inhibited NF-κB and p38 MAPK related with mast cells and macrophages accumulation. Ketotifen fumarate improved the aberrant expression of ZO-1 and inhibits the following apoptosis. On the other hand, these cells and mediators augmented functional attributes of them involving SCF/c-Kit, α4β7/VCAM-1 and IL-8/IL-8RB interactions, thus creating a positive feedback loop to perpetuate gingivitis, where an inflammation microenvironment was modeled. Our results showed a previously unexplored therapeutic potential of ketotifen fumarate for gingivitis and further suggest that, in addition to biofilms, targeting inflammation microenvironment could be new strategy for the treatment of gingivitis/periodontitis.
Collapse
Affiliation(s)
- Weifeng Yuan
- Beijing Institute of Animal Husbandry and Veterinary Medicine, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
| | - Shaohua Hou
- Beijing Institute of Animal Husbandry and Veterinary Medicine, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
| | - Hong Jia
- Beijing Institute of Animal Husbandry and Veterinary Medicine, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
| | - Zhizhao Qiu
- Meilianzhonghe Animal Hospital, Beijing 100077, People's Republic of China
| | - Tao Liu
- College of Animal Husbandry and Veterinary Medicine, Xinyang Agriculture and Forestry University, Xinyang 464001, People's Republic of China
| | - Xinsheng Chen
- Animal Hospital, Shanghai Wild Animal Park, Shanghai 200120, People's Republic of China
| | - Hongjun Li
- Luoyang Animal Husbandry Station, Luoyang 471002, People's Republic of China
| | - Yanchen Sun
- Yichongtang Animal Hospital, Zhengzhou 450016, People's Republic of China
| | - Lin Liang
- Beijing Institute of Animal Husbandry and Veterinary Medicine, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
| | - Xiukun Sui
- Beijing Institute of Animal Husbandry and Veterinary Medicine, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
| | - Xinghui Zhao
- Beijing Institute of Animal Husbandry and Veterinary Medicine, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China.
| | - Zhanzhong Zhao
- Beijing Institute of Animal Husbandry and Veterinary Medicine, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China.
| |
Collapse
|
13
|
Garcia VG, Gualberto EC, Ervolino E, Nagata MJH, de Almeida JM, Theodoro LH. aPDT for periodontitis treatment in ovariectomized rats under systemic nicotine. Photodiagnosis Photodyn Ther 2018; 22:70-78. [DOI: 10.1016/j.pdpdt.2018.02.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 02/18/2018] [Accepted: 02/21/2018] [Indexed: 01/04/2023]
|
14
|
Affiliation(s)
- Jan Tunér
- Private Dental Clinic, Sollentuna, Sweden
| |
Collapse
|
15
|
Petrović MS, Kannosh IY, Milašin JM, Mihailović DS, Obradović RR, Bubanj SR, Kesić LG. Clinical, microbiological and cytomorphometric evaluation of low-level laser therapy as an adjunct to periodontal therapy in patients with chronic periodontitis. Int J Dent Hyg 2018; 16:e120-e127. [DOI: 10.1111/idh.12328] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2017] [Indexed: 01/01/2023]
Affiliation(s)
- MS Petrović
- Department of Oral Medicine and Periodontology, Dental Clinic; Faculty of medicine; University of Niš; Niš Serbia
| | - IY Kannosh
- Department of Human Genetics; School of Dental medicine; University of Belgrade; Belgrade Serbia
| | - JM Milašin
- Department of Human Genetics; School of Dental medicine; University of Belgrade; Belgrade Serbia
| | - DS Mihailović
- Institute of Pathological Anatomy; Medical Faculty Nis; University of Niš; Niš Serbia
| | - RR Obradović
- Department of Oral Medicine and Periodontology, Dental Clinic; Faculty of medicine; University of Niš; Niš Serbia
| | - SR Bubanj
- Faculty of Sport and Physical Education; Department of applied kinesiology; University of Niš; Niš Serbia
| | - LG Kesić
- Department of Oral Medicine and Periodontology, Dental Clinic; Faculty of medicine; University of Niš; Niš Serbia
| |
Collapse
|
16
|
Naterstad IF, Rossi RP, Marcos RL, Parizzoto NA, Frigo L, Joensen J, Lopes Martins PSL, Bjordal JM, Lopes-Martins RAB. Comparison of Photobiomodulation and Anti-Inflammatory Drugs on Tissue Repair on Collagenase-Induced Achilles Tendon Inflammation in Rats. Photomed Laser Surg 2017; 36:137-145. [PMID: 29265910 DOI: 10.1089/pho.2017.4364] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Tendinopathy is characterized by pain, edema, and structural changes in tendon tissue. OBJECTIVE In this animal study we decided to compare the short- and medium-term effects of low-level laser therapy (LLLT), dexamethasone, and diclofenac on inflammation and tendon tissue repair in collagenase-induced tendinitis. MATERIALS AND METHODS Two hundred five female Wistar rats were randomly divided into five groups. Animals in the control group were given a saline injection and the experimental groups received a collagenase injection (100 μg/tendon) in the peritendinous Achilles and received no treatment, LLLT (3 J, 810 nm, 100 mW), diclofenac (1.1 mg/kg), or dexamethasone (0.02 mg/kg). Histological analyses were performed at 10 time points up to 60 days (n = 5/group each time point), and included an assessment of the severity of inflammation, collagen fiber content, and organization. RESULTS Collagenase injection induced a severe inflammatory reaction with significant reduction in collagen content for 48 h, and disorientation of collagen fibers lasting between 14 and 21 days. Diclofenac and dexamethasone reduced inflammatory signs during the first 2 days, although there was prolongation of the inflammatory phase and slower normalization of tendon quality, particularly in the dexamethasone group. LLLT prevented hemorrhage, reduced inflammation severity, and preserved tendon morphology compared with the other groups. CONCLUSIONS LLLT showed a significant superiority over commonly used anti-inflammatory pharmaceutical agents in acute collagenase-induced tendinitis.
Collapse
Affiliation(s)
- Ingvill Fjell Naterstad
- 1 Physiotherapy Research Group, Department of Global Public Health and Primary Care, University of Bergen , Bergen, Norway
| | - Rafael Paolo Rossi
- 2 Post-Graduate Program in Pharmacology, Institute of Biomedical Sciences, University of São Paulo , São Paulo, Brazil
| | - Rodrigo Labat Marcos
- 3 Postgraduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho , São Paulo, Brazil
| | | | - Lucio Frigo
- 5 Department of Health Sciences, University of Cruzeiro do Sul , São Paulo, Brazil
| | - Jón Joensen
- 1 Physiotherapy Research Group, Department of Global Public Health and Primary Care, University of Bergen , Bergen, Norway
| | | | - Jan Magnus Bjordal
- 1 Physiotherapy Research Group, Department of Global Public Health and Primary Care, University of Bergen , Bergen, Norway
| | - Rodrigo Alvaro Brandão Lopes-Martins
- 6 Postgraduate Program in Biomedical Engineering, Technological Research Center , Universidade de Mogi das Cruzes, São Paulo, Brazil .,7 Department of Bioengineering, Universidade Brasil , São Paulo, Brazil
| |
Collapse
|
17
|
Cobb CM. Lasers and the treatment of periodontitis: the essence and the noise. Periodontol 2000 2017; 75:205-295. [DOI: 10.1111/prd.12137] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
18
|
Li Q, Chen Y, Dong S, Liu S, Zhang X, Si X, Zhou Y. Laser irradiation promotes the proliferation of mouse pre-osteoblast cell line MC3T3-E1 through hedgehog signaling pathway. Lasers Med Sci 2017; 32:1489-1496. [PMID: 28667508 DOI: 10.1007/s10103-017-2269-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 06/16/2017] [Indexed: 01/19/2023]
Abstract
Low-level laser could promote osteoblast proliferation, and it has been applied in clinical practice to promote wound healing and tissue regeneration. However, the mechanism related to laser irradiation remains unclear. This study aimed to investigate the effects of low-level laser irradiation on the cell proliferation and the expressions of hedgehog signaling molecules Indian hedgehog (Ihh), Ptch, and Gli in vitro. In our present study, the MTT method was used to evaluate the effect on cell proliferation of laser irradiation on MC3T3-E1 cells. And cell cycle was examined by flow cytometry. Gene and protein expressions of hedgehog signaling molecules, including Ihh, Ptch, Smoothened (Smo), and Gli, were examined by qRT-PCR and western blot analysis. The results showed that laser irradiation at dosage of 3.75 J/cm2 enhances the proliferation of MC3T3-E1 cells compared with control groups (p = 0.00). Moreover, laser irradiation (3.75 J/cm2) increased the cell amount at S phase (p = 0.00). In addition, the expressions of Ihh, Ptch, Smo, and Gli were significantly increased compared to the control during laser irradiation (3.75 J/cm2)-induced MC3T3-E1 osteoblast proliferation. After adding the hedgehog signaling inhibitor CY (cyclopamine), cell proliferation and Ihh, Ptch, Smo, and Gli expressions were inhibited (p = 0.00), and the cell amount at S phase was reduced compared with combination groups (p = 0.00). These results indicated that laser irradiation promotes proliferation of MC3T3-E1 cells through hedgehog signaling pathway. Our findings provide insights into the mechanistic link between laser irradiation-induced osteogenesis and hedgehog signaling pathway.
Collapse
Affiliation(s)
- Qiushi Li
- VIP Integrated Department, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Yingxin Chen
- VIP Integrated Department, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Shujun Dong
- VIP Integrated Department, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Shujie Liu
- VIP Integrated Department, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Xiaodan Zhang
- Department of Oral Health Science, Affiliated Stomatological Hospital of Harbin Medical University, Harbin, China
| | - Xi Si
- Department of Oral Medicine, Hainan Medical University, Haikou, China
| | - Yanmin Zhou
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, China.
| |
Collapse
|
19
|
Pesevska S, Gjorgoski I, Ivanovski K, Soldatos NK, Angelov N. The effect of low-level diode laser on COX-2 gene expression in chronic periodontitis patients. Lasers Med Sci 2017; 32:1463-1468. [DOI: 10.1007/s10103-017-2231-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 05/12/2017] [Indexed: 12/01/2022]
|
20
|
de Oliveira CRAC, Zanin F, Cassoni A, Rodrigues JA, Silveira L, Pacheco MT, Brugnera A. Analysis of Human Tooth Pulp Chamber Temperature After 670 nm Laser Irradiation: In Vitro Study. Photomed Laser Surg 2017; 35:515-519. [PMID: 28437191 DOI: 10.1089/pho.2016.4233] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE One of the limiting factors of employing laser radiation on dental therapies is the potential of causing thermal injuries to pulp tissues. The purpose of this study was to evaluate intra-chamber temperature increase on extracted human teeth exposed to 670 nm wavelength InGaAlP laser diode radiation. MATERIALS AND METHODS In vitro intra-chamber temperature measurements of 12 standardized human teeth (incisors, canines, premolars, and molars; n = 3) were taken both before and after laser radiation. A type-K thermocouple fast-response thermocouple wire with a 0.5 mm diameter probe was inserted into the tooth pulp chamber (ICEL-Manaus-brand). The laser device Lasotronic-brand InGaAlP laser diode was used to irradiate tooth enamel, perpendicularly to the external surface for 30 sec, with power of levels of 340, 272, 204, 136, and 68 mW. The measurements were taken at three time points: 0, 30 sec, and 3 min after the laser irradiation. Measurements were repeated 24 h after removal and reinsertion of the probe in the pulp chamber. The temperature gradient (ΔT in °C) was calculated (ΔT = final temperature-initial temperature) for each group. Data of ΔT were statistically analyzed by two-way analysis of variance (ANOVA) at the 95% confidence level and compared by Tukey post hoc test (α = 0.05). RESULTS ANOVA showed statistically significant differences to the interaction of factors (p < 0.05). The highest ΔT values obtained were observed to incisors with 340 mW, 272 mW; 204 mW of power (respectively 4.7°C, 4.2°C, and 3.1°C); and canines presented the lowest ΔT (0.8°C-0.3°C) with no influence of power output. CONCLUSIONS Since the thermal increase was observed in this study, especially in incisors, attention should be paid to avoid pulpal damage.
Collapse
Affiliation(s)
| | - Fátima Zanin
- 2 Anhembi Morumbi University, São José dos Campos, Brazil
| | - Alessandra Cassoni
- 3 Dental Research and Graduate Studies Division, Department of Restorative Dentistry, Guarulhos University , Guarulhos, Brazil
| | - José Augusto Rodrigues
- 3 Dental Research and Graduate Studies Division, Department of Restorative Dentistry, Guarulhos University , Guarulhos, Brazil
| | | | | | - Aldo Brugnera
- 2 Anhembi Morumbi University, São José dos Campos, Brazil
| |
Collapse
|
21
|
Evaluation of different treatment protocols for dentin hypersensitivity: an 18-month randomized clinical trial. Lasers Med Sci 2017; 32:1023-1030. [DOI: 10.1007/s10103-017-2203-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 03/29/2017] [Indexed: 10/19/2022]
|
22
|
Demirturk-Gocgun O, Baser U, Aykol-Sahin G, Dinccag N, Issever H, Yalcin F. Role of Low-Level Laser Therapy as an Adjunct to Initial Periodontal Treatment in Type 2 Diabetic Patients: A Split-Mouth, Randomized, Controlled Clinical Trial. Photomed Laser Surg 2017; 35:111-115. [DOI: 10.1089/pho.2016.4117] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Oya Demirturk-Gocgun
- Department of Periodontology, Faculty of Dentistry, Istanbul University, Istanbul, Turkey
| | - Ulku Baser
- Department of Periodontology, Faculty of Dentistry, Istanbul University, Istanbul, Turkey
| | - Gokce Aykol-Sahin
- Department of Periodontology, Faculty of Dentistry, Okan University, Istanbul, Turkey
| | - Nevin Dinccag
- Division of Diabetes, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Halim Issever
- Department of Biostatistics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Funda Yalcin
- Department of Periodontology, Faculty of Dentistry, Istanbul University, Istanbul, Turkey
| |
Collapse
|
23
|
Gounder R, Gounder S. Laser Science and its Applications in Prosthetic Rehabilitation. J Lasers Med Sci 2016; 7:209-213. [DOI: 10.15171/jlms.2016.37] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
24
|
A Preliminary In Vitro Study on the Efficacy of High-Power Photodynamic Therapy (HLLT): Comparison between Pulsed Diode Lasers and Superpulsed Diode Lasers and Impact of Hydrogen Peroxide with Controlled Stabilization. BIOMED RESEARCH INTERNATIONAL 2016; 2016:1386158. [PMID: 27631000 PMCID: PMC5007302 DOI: 10.1155/2016/1386158] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 06/10/2016] [Accepted: 07/04/2016] [Indexed: 12/14/2022]
Abstract
Aim. In periodontology lasers have been suggested for the photodynamic therapy (PDT): such therapy can be defined as the inactivation of cells, microorganisms, or molecules induced by light and not by heat. The aim of this study was to evaluate results of PDT using a 980 nm diode laser (Wiser Doctor Smile, Lambda SPA, Italy) combined with hydrogen peroxide, comparing a pulsed diode laser (LI) activity to a high-frequency superpulsed diode laser (LII). Materials and Methods. Primary fibroblasts and keratinocytes cell lines, isolated from human dermis, were irradiated every 48 h for 10 days using LI and LII combined with SiOxyL(+) ™ Solution (hydrogen peroxide (HP) stabilized with a glycerol phosphate complex). Two days after the last irradiation, the treated cultures were analyzed by flow cytofluorometry (FACS) and western blotting to quantify keratin 5 and keratin 8 with monoclonal antibodies reactive to cytokeratin 5 and cytokeratin 8. Antimicrobial activity was also evaluated. Results. Both experimental models show the superiority of LII against LI. In parallel, stabilized HP provided better results in the regeneration test in respect to common HP, while the biocidal activity remains comparable. Conclusion. The use of high-frequency lasers combined with stabilized hydrogen peroxide can provide optimal results for a substantial decrease of bacterial count combined with a maximal biostimulation induction of soft tissues and osteogenesis.
Collapse
|
25
|
Mizutani K, Aoki A, Coluzzi D, Yukna R, Wang CY, Pavlic V, Izumi Y. Lasers in minimally invasive periodontal and peri-implant therapy. Periodontol 2000 2016; 71:185-212. [DOI: 10.1111/prd.12123] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2015] [Indexed: 12/28/2022]
|
26
|
Theodoro LH, Longo M, Ervolino E, Duque C, Ferro-Alves ML, Assem NZ, Louzada LM, Garcia VG. Effect of low-level laser therapy as an adjuvant in the treatment of periodontitis induced in rats subjected to 5-fluorouracil chemotherapy. J Periodontal Res 2016; 51:669-80. [DOI: 10.1111/jre.12347] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/02/2015] [Indexed: 01/04/2023]
Affiliation(s)
- L. H. Theodoro
- Department of Surgery and Integrated Clinic; Division of Periodontics; São Paulo State University (“Univ. Estadual Paulista” - UNESP); Araçatuba SP Brazil
| | - M. Longo
- Department of Surgery and Integrated Clinic; Division of Periodontics; São Paulo State University (“Univ. Estadual Paulista” - UNESP); Araçatuba SP Brazil
| | - E. Ervolino
- Department of Basic Science; São Paulo State University (“Univ. Estadual Paulista” - UNESP); Araçatuba SP Brazil
| | - C. Duque
- Department of Paediatric and Social Dentistry; São Paulo State University (“Univ Estadual Paulista” - UNESP; Araçatuba SP Brazil
| | - M. L. Ferro-Alves
- Department of Surgery and Integrated Clinic; Division of Periodontics; São Paulo State University (“Univ. Estadual Paulista” - UNESP); Araçatuba SP Brazil
| | - N. Z. Assem
- Department of Surgery and Integrated Clinic; Division of Periodontics; São Paulo State University (“Univ. Estadual Paulista” - UNESP); Araçatuba SP Brazil
| | - L. M. Louzada
- Department of Surgery and Integrated Clinic; Division of Periodontics; São Paulo State University (“Univ. Estadual Paulista” - UNESP); Araçatuba SP Brazil
| | - V. G. Garcia
- Department of Surgery and Integrated Clinic; Division of Periodontics; São Paulo State University (“Univ. Estadual Paulista” - UNESP); Araçatuba SP Brazil
- University Centre of the Educational Foundation of Barretos (UNIFEB); Barretos SP Brazil
| |
Collapse
|
27
|
Laser Phototherapy (660 nm) Can Be Beneficial for Reducing Gingival Inflammation in Prosthodontics. Case Rep Dent 2015; 2015:132656. [PMID: 26491573 PMCID: PMC4605265 DOI: 10.1155/2015/132656] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 09/15/2015] [Indexed: 12/05/2022] Open
Abstract
Among the new technologies developed, low power lasers have enabled new approaches to provide conservative treatment. Low power lasers act at cellular level, resulting in reduced pain, modulating inflammation, and improved tissue healing. Clinical application of the low power laser requires specific knowledge concerning laser interaction with biological tissue so that the correct irradiation protocol can be established. The present case report describes the clinical steps involved in an indirect composite resin restoration performed in a 31-year-old patient, in whom low power laser was used for soft tissue biomodulation. Laser therapy was applied with a semiconductor laser 660 nm, spot size of 0.028 cm2, energy density of 35.7 J/cm2, mean power of 100 mW, and energy per point as 1 J, in contact mode, on a total of 2 points (mesial and distal), totaling 2 J of energy. The therapy with low power laser can contribute positively to the success of an indirect restorative treatment.
Collapse
|
28
|
Carallo C, Franceschi MSD, Tripolino C, Iovane C, Catalano S, Giudice A, Crispino A, Figliuzzi M, Irace C, Fortunato L, Gnasso A. Periodontal Treatment Elevates Carotid Wall Shear Stress in the Medium Term. Medicine (Baltimore) 2015; 94:e1724. [PMID: 26496285 PMCID: PMC4620837 DOI: 10.1097/md.0000000000001724] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Periodontal disease is associated with endothelial dysfunction of the brachial artery and hemodynamic alterations of the common carotid artery. Periodontal therapy improves endothelial function. It is not known if it is able also to improve the hemodynamics of the carotid artery. The aim of the current study was to evaluate the efficacy of 2 different periodontal treatments on carotid hemodynamics: scaling and root planing (SRP) alone or together with low-level laser therapy (LLLT). Forty patients were recruited and randomly treated with SRP (n = 20) or SRP + LLLT (n = 20). Periodontal indices (plaque, gingival, and probing depth indices) were measured before and 5 months after treatment. Blood viscosity, common carotid wall shear stress, circumferential wall tension, and Peterson elastic modulus were evaluated before, soon after and 5 months after treatment. It was found that the periodontal indices improved in both groups, but significantly more so for SRP + LLLT than for SRP (decrease in gingival index 69.3% versus 45.4%, respectively, P = 0.04). In the SRP + LLLT group, after a transient reduction by 5% immediately after therapy, shear stress increased by 11% after 5 months. In SRP only group, however, shear stress variations were less marked. No significant changes were found for the other hemodynamic parameters in either of the groups. Periodontal disease treatment by SRP + LLLT can therefore be said to improve common carotid wall shear stress. This suggests a possible mechanism by which the treatment of periodontal disease has beneficial effects on the cardiovascular system.
Collapse
Affiliation(s)
- Claudio Carallo
- From the Department of Chemical Engineering, Imperial College London, London, United Kingdom (CC, SC); Department of Clinical and Experimental Medicine, Institute of Dentistry, "Magna Graecia" University (MSDF, CI, AG, AC, MF, LF); and Department of Clinical and Experimental Medicine, Metabolic Disease Unit, "Magna Graecia" University, Catanzaro, Italy (CC, MSDF, CT, CI, AG)
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Manzano-Moreno FJ, Medina-Huertas R, Ramos-Torrecillas J, García-Martínez O, Ruiz C. The effect of low-level diode laser therapy on early differentiation of osteoblast via BMP-2/TGF-β1 and its receptors. J Craniomaxillofac Surg 2015; 43:1926-32. [PMID: 26447026 DOI: 10.1016/j.jcms.2015.08.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 07/17/2015] [Accepted: 08/26/2015] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVES The objective of this study was to determine the effect of LLDL therapy on the gene expression of osteoblast markers of growth and differentiation. MATERIALS AND METHODS The MG-63 cell line was exposed to diode laser (ezLase) of 940 nm at 1-1.5 W and 3-4 J, and gene expressions (Runx-2, alkaline phosphatase [ALP], type I collagen [Col-I], osterix [OSX], osteocalcin [OSC], osteoprotegerin [OPG], bone morphogenetic protein [BMP]-2 and -7, transforming growth factor-β1 [TGF-β1], and TGF-β receptors [TGF-β R1, TGF-β R2; TGF-β R3]) were evaluated by quantitative RT-PCR. RESULTS LLDL treatment stimulated the expression of osteoblast differentiation markers ALP, Col-I, Runx-2, and OSX in relation to the doses applied (P < 0.05), but no changes were detected in OSC, OPG, or BMP-7 at any study dose. This effect may be mediated by TGF-β1 and BMP-2, given that the treatment increased their expression and that of TGF-β receptors R1, R2, and R3 (P < 0.001). CONCLUSION These results suggest that the biostimulatory effect of laser therapy on osteoblasts may be attributable to the release of autocrine factors in response to the irradiation. A clinical trial is warranted to test its therapeutic usefulness in bone tissue regeneration and to define a treatment protocol.
Collapse
Affiliation(s)
- Francisco J Manzano-Moreno
- Department of Stomatology (Head: Prof. Pilar Aranda-Ramirez), School of Dentistry, University of Granada, Spain; Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain; Instituto Investigación Biosanitaria, ibs.Granada (Head: Prof. Nicolas Olea-Serrano), Spain
| | - Rosa Medina-Huertas
- Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain
| | - Javier Ramos-Torrecillas
- Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain; Instituto Investigación Biosanitaria, ibs.Granada (Head: Prof. Nicolas Olea-Serrano), Spain
| | - Olga García-Martínez
- Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain; Instituto Investigación Biosanitaria, ibs.Granada (Head: Prof. Nicolas Olea-Serrano), Spain
| | - Concepción Ruiz
- Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain; Instituto Investigación Biosanitaria, ibs.Granada (Head: Prof. Nicolas Olea-Serrano), Spain; Institute of Neuroscience (Head: Prof. Pilar Aranda-Ramirez), Parque Tecnológico Ciencias de la Salud, Armilla (Granada), University of Granada, Spain.
| |
Collapse
|
30
|
Thermal tomography imaging in photonic traditional Chinese medicine information therapy with holistic effect for health whole nursing. BIOMED RESEARCH INTERNATIONAL 2015; 2015:492391. [PMID: 25821805 PMCID: PMC4363508 DOI: 10.1155/2015/492391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Accepted: 02/15/2015] [Indexed: 11/25/2022]
Abstract
A photonic traditional Chinese medicine (TCM) information therapy was developed that has applications in whole health nursing including the prevention and treatment of ischemic cardiovascular and cerebrovascular diseases as well as the conditioning of the subhealth state. This therapy utilizes the beam of a 630 nm LED light to irradiate the oropharynx, while simultaneously employing two beams of 650 nm LED light to irradiate corresponding acupuncture points resulting in a synergistic outcome. This method was named “1 + 2 phototherapy.” The principle mechanism of the therapy is a series of photon induced biological effects that are triggered by stimulating the photosensitive tissues of the oropharynx. This tissue includes the oral mucosa, capillaries, lymph nodes, saliva glands, nerves, and Jingluo and is stimulated by light beams of certain photon energy and imitative acupuncture information. Thermal tomography imaging shows that the average temperature of the upper-body was improved significantly after oropharyngeal irradiation under irradiation of “Futu point”: the heat radiation of the spine, as well as chest, shoulders, arms, and clavicle, increased under irradiation of “Hoku,” whereas the overall average temperature was below the temperature before irradiation. The experiment indicates that this therapy can promote blood circulation, regulate varied physiological parameters, and have holistic effects in whole health nursing.
Collapse
|
31
|
Milward MR, Holder MJ, Palin WM, Hadis MA, Carroll JD, Cooper PR. Low level light therapy (LLLT) for the treatment and management of dental and oral diseases. ACTA ACUST UNITED AC 2014. [DOI: 10.12968/denu.2014.41.9.763] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Michael R Milward
- Senior Lecturer/Honorary Consultant in Periodontology, University of Birmingham, School of Dentistry, St Chad's Queensway, Birmingham
| | - Michelle J Holder
- Research Technician in Oral Biology, University of Birmingham, School of Dentistry, St Chad's Queensway, Birmingham
| | - William M Palin
- Reader in Biomaterials, University of Birmingham, School of Dentistry, St Chad's Queensway, Birmingham
| | - Mohammed A Hadis
- Research Fellow in Biomaterials, University of Birmingham, School of Dentistry, St Chad's Queensway, Birmingham
| | - James D Carroll
- Founder/CEO at THOR Photomedicine Ltd, 18A East Street, Chesham, HP5 1HQ
| | - Paul R Cooper
- Professor of Oral Biology, University of Birmingham, School of Dentistry, St Chad's Queensway, Birmingham, B4 6NN, UK
| |
Collapse
|
32
|
Tunar OL, Gürsoy H, Çakar G, Kuru B, Ipci SD, Yılmaz S. Evaluation of the effects of Er:YAG laser and desensitizing paste containing 8% arginine and calcium carbonate, and their combinations on human dentine tubules: a scanning electron microscopic analysis. Photomed Laser Surg 2014; 32:540-5. [PMID: 25238037 DOI: 10.1089/pho.2014.3779] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE The aim of this study was to evaluate the in vitro effects of Er:YAG laser and an in-office desensitizing paste alone or in combination by using scanning electron microscopic (SEM) analysis. BACKGROUND DATA Various treatment modalities have been proposed for dentin hypersensitivity, but to date, no single agent or form of treatment has been found effective. MATERIAL AND METHODS Forty dentine specimens obtained from freshly extracted impacted third molars were included and divided into four groups. Group I served as the control, whereas Group II, Group III, and Group IV recieved Er:YAG laser (30 Hz, 60 mJ/pulse, 10 sec), a desensitizing paste (DP) containing 8% arginine and calcium carbonate, and DP+Er:YAG laser in combination, respectively, evaluated under SEM. RESULTS SEM analysis presented occlusion and narrowing of dentinal tubules in all treatment groups, but more prominent occlusion was observed in the combined treatment group. Intergroup comparisons regarding the tubule diameters and the number of the open dentinal tubules per 100 μm2 revealed statistically significant difference in favor of combined group (p<0.05). The difference between single effects of Er:YAG and DP in all parameters were found statistically nonsignificant. CONCLUSIONS The present study has shown that all treatment procedures are effective in dentinal tubule occlusion. However, more prominent occlusion is observed in the combined treatment group.
Collapse
Affiliation(s)
- Ogul L Tunar
- Yeditepe University , Faculty of Dentistry, Department of Periodontology, Istanbul, Turkey
| | | | | | | | | | | |
Collapse
|
33
|
Lasers in esthetic dentistry: soft tissue photobiomodulation, hard tissue decontamination, and ceramics conditioning. Case Rep Dent 2014; 2014:927429. [PMID: 25147746 PMCID: PMC4134805 DOI: 10.1155/2014/927429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 06/30/2014] [Indexed: 11/17/2022] Open
Abstract
The increasing concern and the search for conservative dental treatments have resulted in the development of several new technologies. Low and high power lasers can be cited as one of these new technologies. Low power lasers act at cellular level leading to pain reduction, modulation of inflammation, and improvement of tissue healing. High power lasers act by increasing temperature and have the potential to promote microbial reduction and ablation of hard and soft tissues. The clinical application of both low and high power lasers requires specific knowledge concerning laser interaction with biological tissues, so that the correct irradiation protocol can be established. The present case report describes the clinical steps of two metal-ceramic crowns development in a 60-year-old patient. Three different laser wavelengths were applied throughout the treatment with different purposes: Nd:YAG laser (1,064 nm) for dentin decontamination, diode (660 nm) for soft tissue biomodulation, and Er:YAG laser (2,940 nm) for inner ceramic surface conditioning. Lasers were successfully applied in the present case report as coadjutant in the treatment. This coadjutant technology can be a potential tool to assist treatment to reach the final success.
Collapse
|
34
|
Carroll JD, Milward MR, Cooper PR, Hadis M, Palin WM. Developments in low level light therapy (LLLT) for dentistry. Dent Mater 2014; 30:465-75. [PMID: 24656472 DOI: 10.1016/j.dental.2014.02.006] [Citation(s) in RCA: 132] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 02/12/2014] [Accepted: 02/12/2014] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Low level light/laser therapy (LLLT) is the direct application of light to stimulate cell responses (photobiomodulation) in order to promote tissue healing, reduce inflammation and induce analgesia. There have been significant studies demonstrating its application and efficacy at many sites within the body and for treatment of a range of musculoskeletal injuries, degenerative diseases and dysfunction, however, its use on oral tissues has, to date, been limited. The purpose of this review is to consider the potential for LLLT in dental and oral applications by providing background information on its mechanism of action and delivery parameters and by drawing parallels with its treatment use in analogous cells and tissues from other sites of the body. METHODS A literature search on Medline was performed on laser and light treatments in a range of dental/orofacial applications from 2010 to March 2013. The search results were filtered for LLLT relevance. The clinical papers were then arranged to eight broad dental/orofacial categories and reviewed. RESULTS The initial search returned 2778 results, when filtered this was reduced to 153. 41 were review papers or editorials, 65 clinical and 47 laboratory studies. Of all the publications, 130 reported a positive effect in terms of pain relief, fast healing or other improvement in symptoms or appearance and 23 reported inconclusive or negative outcomes. Direct application of light as a therapeutic intervention within the oral cavity (rather than photodynamic therapies, which utilize photosensitizing solutions) has thus far received minimal attention. Data from the limited studies that have been performed which relate to the oral cavity indicate that LLLT may be a reliable, safe and novel approach to treating a range of oral and dental disorders and in particular for those which there is an unmet clinical need. SIGNIFICANCE The potential benefits of LLLT that have been demonstrated in many healthcare fields and include improved healing, reduced inflammation and pain control, which suggest considerable potential for its use in oral tissues.
Collapse
Affiliation(s)
- James D Carroll
- THOR Photomedicine Ltd., 18A East Street, Chesham HP5 1HQ, UK
| | | | | | - Mohammed Hadis
- Biomaterials, University of Birmingham, School of Dentistry, St Chads Queensway, Birmingham B4 6NN, UK
| | - William M Palin
- Biomaterials, University of Birmingham, School of Dentistry, St Chads Queensway, Birmingham B4 6NN, UK.
| |
Collapse
|
35
|
The effects of low-level diode laser irradiation on differentiation, antigenic profile, and phagocytic capacity of osteoblast-like cells (MG-63). Lasers Med Sci 2014; 29:1479-84. [DOI: 10.1007/s10103-014-1557-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 02/21/2014] [Indexed: 11/30/2022]
|
36
|
Controlling periodontal bone levels with multiple LED irradiations. Lasers Med Sci 2013; 30:741-6. [DOI: 10.1007/s10103-013-1416-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 07/29/2013] [Indexed: 12/27/2022]
|
37
|
Huertas RM, Luna-Bertos ED, Ramos-Torrecillas J, Leyva FM, Ruiz C, García-Martínez O. Effect and clinical implications of the low-energy diode laser on bone cell proliferation. Biol Res Nurs 2013; 16:191-6. [PMID: 23559459 DOI: 10.1177/1099800413482695] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Laser is a simple, noninvasive technique that has proven useful for treating damaged tissue. However, its effects on bone regeneration and the mechanisms involved are poorly understood. The objective of this study was to evaluate the effects on MG-63 cell proliferation of application of a pulsed diode laser (Ezlase) of 940 nm at low energy levels. After 24 hr of culture, osteoblasts underwent pulsed laser radiation at 0.5, 1, 1.5, and 2 W and fluences of 1-5 J. A control group was not irradiated. After the treatment, cells were incubated for 24 hr, and cell proliferation was analyzed using a spectrophotometric measure of cell respiration (MTT assay). Results were expressed as percentage proliferation versus controls. At 24-hr culture, cell proliferation was increased in laser-treated cells at intensities of 0.5, 1, and 1.5 W/cm(2) versus controls; the energy density was positively correlated with cell growth, which reached a peak at 3 J and decreased at higher fluences. The use of pulsed low-level laser with low-energy density range thus appears to exert a biostimulatory effect on bone tissue. Although the data on cell proliferation are robust, in-depth investigation is required into the effect of these irradiation doses on other cell parameters. The present findings demonstrate that laser therapy could be highly useful in tissue regeneration in different clinical settings, including nursing, physical therapy, dentistry, and traumatology.
Collapse
Affiliation(s)
- Rosa Medina Huertas
- 1Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Granada, Spain
| | | | | | | | | | | |
Collapse
|
38
|
Lopes AO, Aranha ACC. Comparative evaluation of the effects of Nd:YAG laser and a desensitizer agent on the treatment of dentin hypersensitivity: a clinical study. Photomed Laser Surg 2013; 31:132-8. [PMID: 23421629 DOI: 10.1089/pho.2012.3386] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
UNLABELLED Abstract Objective: The aim of this randomized longitudinal clinical study was to assess different treatment protocols for dentin hypersensitivity with high-power laser, desensitizing agent, and its association between high-power laser and desensitizing agent, for a period of 6 months. BACKGROUND DATA The literature shows a lack of treatment for dentin hypersensitivity, and lasers are contemporary alternatives. METHODS After inclusion and exclusion analysis, volunteers were selected. The lesions were divided into three groups (n=10): G1, Gluma Desensitizer (Heraeus Kulzer); G2, Nd:YAG Laser (Power Laser(™) ST6, Lares Research®) contact mode, laser protocol of 1.5 W, 10 Hz, and 100 mJ,≈85 J/cm(2), four irradiations performed, each for 15 sec, in mesiodistal and occluso-apical directions, totaling 60 sec of irradiation with intervals of 10 sec between them; G3, Nd:YAG Laser+Gluma Desensitizer. The level of sensitivity to pain of each volunteer was analyzed by visual analog scale (VAS) using cold air stimuli and exploratory probe 5 min, 1 week, and 1, 3, and 6 months after treatment. Data were collected and subjected to statistical analysis that detected statistically significant differences between the various studied time intervals of treatments (p>0.05). RESULTS For the air stimulus, no significant differences were found for each time interval. For the long-term evaluation, all groups showed statistical differences (p>0.05), indicating that for G2 and G3, this difference was statistically significant from the first time of evaluation (post 1), whereas in G1, the difference was significant from the post 2 evaluation (1 week). Comparison among groups using the probe stimulation showed significant differences in pain (p<0.001). Only in G1 and G3 did this difference become significant from post 01. CONCLUSIONS All protocols were effective in reducing dentinal hypersensitivity after 6 months of treatment; however, the association of Nd:YAG and Gluma Desensitizer is an effective treatment strategy that has immediate and long-lasting effects.
Collapse
Affiliation(s)
- Anely Oliveira Lopes
- Department of Restorative Dentistry/Special Laboratory of Lasers (LELO), School of Dentistry, University of São Paulo, Cidade Universitária, São Paulo, Brazil
| | | |
Collapse
|
39
|
Choi M, Kim JE, Cho KH, Lee JH. In vivo and in vitro analysis of low level light therapy: a useful therapeutic approach for sensitive skin. Lasers Med Sci 2013; 28:1573-9. [PMID: 23397274 DOI: 10.1007/s10103-013-1281-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 01/30/2013] [Indexed: 10/27/2022]
Abstract
Sensitive skin is a relatively common dermatologic condition and no optimal treatments have been established so far. Low-level laser/light therapy (LLLT) has been used for its biostimulative effect in various clinical settings. The purpose of this study was to investigate whether low-level laser/light therapy can improve sensitive skin clinically and to evaluate the effects of LLLT on skin in vitro. Twenty-eight patients complaining of sensitive skin were treated with low-level polarized light, and clinical results were evaluated using subjective and objective method. To investigate possible working mechanism of LLLT on skin, cultured human keratinocytes pretreated with nontoxic concentration of sodium lauryl sulfate (SLS) were used. Cytokines released from irritated keratinocytes after LLLT were analyzed. All patients showed subjective and objective improvement after treatment. No adverse effects were reported. The average number of LLLT sessions required to achieve clinical improvement was 9.9, and cumulative dose of LLLT was 71.3 J/cm(2) on the average. Erythema index decreased significantly after LLLT treatment (p = 0.017). In vitro assay showed that LLLT significantly reduced the release of VEGF from SLS-pretreated keratinocytes (p = 0.021). Our results suggest that LLLT could be a useful and safe treatment modality for sensitive skin, and modification of inflammatory cytokines released from irritated keratinocytes may be considered as one of plausible mechanisms in sensitive skin treated with LLLT.
Collapse
Affiliation(s)
- M Choi
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea
| | | | | | | |
Collapse
|
40
|
Laser Therapy of Recurrent Aphthous Ulcer in Patient with HIV Infection. Case Rep Med 2012; 2012:695642. [PMID: 23346114 PMCID: PMC3546470 DOI: 10.1155/2012/695642] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Revised: 11/19/2012] [Accepted: 12/18/2012] [Indexed: 11/05/2022] Open
Abstract
The recurrent aphthous ulcer (RAU) is a pathological change found in the oral mucosa, characterized by painful single or multiple ulcers. The etiologic aspect of RAU is not well understood; however it is known that due to lower CD4 cell counts patients had higher prevalence of these oral lesions, and immunosuppressed patients with HIV are predisposed. Patient FC is African descent, 26 years old, male, HIV + CD4 67 cells/mm3, with minor RAU in the upper and lower right side lip, measuring about 4 mm, and major RAU in tongue and the tonsillar pillar measuring 2 cm. The patient was treated with laser therapy with the objective to help reverse the damage and decrease the symptoms. After one week there was remission of the lesions. The laser showed to be an important alternative therapy that promoted analgesic, healing effects and improving the quality of life of patients.
Collapse
|
41
|
Chang PC, Chien LY, Ye Y, Kao MJ. Irradiation by light-emitting diode light as an adjunct to facilitate healing of experimental periodontitis in vivo. J Periodontal Res 2012; 48:135-43. [PMID: 22845797 DOI: 10.1111/j.1600-0765.2012.01511.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVE This study evaluated the biostimulatory effect of 660 nm light-emitting diode (LED) as an adjunct in the treatment of experimental periodontitis. MATERIAL AND METHODS Ninety-six Sprague-Dawley rats underwent experimental periodontitis by placement of a silk ligature followed with or without additive Porphyromonas gingivalis lipopolysaccharide (Pg-LPS) injection. Irradiation with LED light was performed at varying energy densities of 5, 10 and 15 J/cm2, 1 d after debridement and detoxification. Rats were killed at 3, 7 and 14 d after irradiation with LED light, and the effect of irradiation was evaluated by descriptive histology and quantitative measurements of periodontal bone loss, inflammatory infiltration and cellular proliferation. RESULTS Reduction of inflammation, accelerated collagen deposition and realignment was noted following irradiation with LED light at densities of 10 and 15 J/cm2, and temporary reduction of periodontal bone loss, as well as bundle bone apposition, was noted at day 3 in rats treated with 10 J/cm2 light. The biomodulatory effect was stronger in sites treated with Pg-LPS injection. In sites without Pg-LPS injection, temporary reduction of inflammation was noted in all LED light-irradiated specimens at day 3. No significant change in cellular proliferation was noted in any LED light-treated group. CONCLUSIONS LED light (660 nm) with an energy density of 10 J/cm2 appeared suitable as an adjunct modality for periodontitis by temporarily reducing inflammation, facilitating collagen realignment and bundle bone deposition. Future studies will aim to amplify the biostimulatory effect of LED light by adding a supplementary medium or repeated irradiation.
Collapse
Affiliation(s)
- P-C Chang
- Faculty of Dentistry, National University of Singapore, Singapore, Singapore.
| | | | | | | |
Collapse
|
42
|
Sorkhdini P, Moslemi N, Jamshidi S, Jamali R, Amirzargar AA, Fekrazad R. Effect of hydrosoluble chlorine-mediated antimicrobial photodynamic therapy on clinical parameters and cytokine profile in ligature-induced periodontitis in dogs. J Periodontol 2012; 84:793-800. [PMID: 22813345 DOI: 10.1902/jop.2012.120330] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Recently, a hydrosoluble chlorine composed of sodium salts chlorine e6, chlorine p6, and purpurine-5 has been shown to be a promising photosensitizer in antimicrobial photodynamic therapy (aPDT). The aim of this study is to evaluate the effects of adjunctive application of hydrosoluble chlorine-mediated aPDT compared with scaling and root planing (SRP) alone on clinical parameters and cytokine levels in gingival crevicular fluid of dogs with experimental periodontitis. METHODS Periodontal disease was induced by placing silk ligatures around both maxillary and mandibular teeth. After establishment of attachment loss, full-mouth SRP was performed in all dogs. One day after SRP, each quadrant randomly received one of the following treatment modalities: hydrosoluble chlorine plus diode laser (wavelength 662 nm, power 100 mW, continuous mode, time of irradiation 20 seconds), hydrosoluble chlorine alone, laser alone, or no adjunctive treatment. The same adjunctive procedure was repeated 1 week later. Clinical parameters including periodontal probing depth, clinical attachment level, and bleeding on probing, as well as crevicular levels of interleukin-1β and tumor necrosis factor-α, were evaluated at baseline, at 3 weeks, and at 3 months after treatment. RESULTS After both 3 weeks and 3 months, all treatment groups showed significant improvement in all clinical and immunologic parameters (P <0.001). No significant differences were found between the four groups with regard to the measured parameters (P >0.05). CONCLUSION Based on the results of this study, adjunctive use of hydrosoluble chlorine-mediated aPDT with the current setting has no additional effect on the clinical parameters or proinflammatory cytokine levels in ligature-induced periodontitis.
Collapse
Affiliation(s)
- Parand Sorkhdini
- Laser Research Center of Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | | | | | | | | | | |
Collapse
|
43
|
Short-term clinical and osteoimmunological effects of scaling and root planing complemented by simple or repeated laser phototherapy in chronic periodontitis. Lasers Med Sci 2012; 28:157-66. [DOI: 10.1007/s10103-012-1104-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Accepted: 04/16/2012] [Indexed: 11/26/2022]
|
44
|
Makhlouf M, Dahaba MM, Tunér J, Eissa SA, Harhash TAH. Effect of Adjunctive Low Level Laser Therapy (LLLT) on Nonsurgical Treatment of Chronic Periodontitis. Photomed Laser Surg 2012; 30:160-6. [DOI: 10.1089/pho.2011.3069] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - Mushira M. Dahaba
- Oral Radiology Department, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt
| | - Jan Tunér
- Private dental clinic, Grängesberg, Sweden
| | - Sohair A. Eissa
- Clinical Pathology Department, Cairo University, Cairo, Egypt
| | | |
Collapse
|
45
|
Saygun I, Nizam N, Ural AU, Serdar MA, Avcu F, Tözüm TF. Low-level laser irradiation affects the release of basic fibroblast growth factor (bFGF), insulin-like growth factor-I (IGF-I), and receptor of IGF-I (IGFBP3) from osteoblasts. Photomed Laser Surg 2012; 30:149-54. [PMID: 22235971 DOI: 10.1089/pho.2011.3079] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE It was the aim of the present study to evaluate whether the laser irradiation of osteoblasts could enhance the release of growth factors including basic fibroblast growth factor (bFGF), insulin-like growth factor-I (IGF-I), and receptor of IGF-I (IGFBP3). BACKGROUND DATA Low-level laser therapy (LLLT) has been shown to have biostimulatory effects on various cell types by enhancing production of some cytokines and growth factors. MATERIALS AND METHODS Human mesenchymal stem cells (MSCs) were seeded in osteogenic medium and differentiated into osteoblasts. Three groups were formed: in the first group (single dose group), osteoblasts were irradiated with laser (685 nm, 25 mW, 14.3 mW/cm(2), 140 sec, 2 J/cm(2)) for one time; and in the second group, energy at the same dose was applied for 2 consecutive days (double dose group). The third group was not irradiated with laser and served as the control group. Proliferation, viability, bFGF, IGF-I, and IGFBP3 levels were compared between groups. RESULTS Both of the irradiated groups revealed higher proliferation, viability, bFGF, IGF-I, and IGFBP3 expressions than did the nonirradiated control group. There was increase in bFGF and IGF-I expressions and decrease in IGFBP3 in the double dose group compared to single dose group. CONCLUSIONS The results of the present study indicate that LLLT increases the proliferation of osteoblast cells and stimulates the release of bFGF, IGF-I, and IGFBP3 from these cells. The biostimulatory effect of LLLT may be related to the enhanced production of the growth factors.
Collapse
Affiliation(s)
- Işıl Saygun
- Department of Periodontology, Gülhane Military Medical Academy, Ankara, Turkey.
| | | | | | | | | | | |
Collapse
|
46
|
Lubart R. A possible mechanism for treating staphylococcus aureus-induced chronic osteomyelitis in rats using 808-nm light. Photomed Laser Surg 2011; 29:789-90; author reply 791. [PMID: 22107485 DOI: 10.1089/pho.2011.9898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
47
|
Yilmaz HG, Kurtulmus-Yilmaz S, Cengiz E. Long-Term Effect of Diode Laser Irradiation Compared to Sodium Fluoride Varnish in the Treatment of Dentine Hypersensitivity in Periodontal Maintenance Patients: A Randomized Controlled Clinical Study. Photomed Laser Surg 2011; 29:721-5. [DOI: 10.1089/pho.2010.2974] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Hasan Guney Yilmaz
- Department of Periodontology, Faculty of Dentistry, Near East University, Mersin, Turkey
| | | | - Esra Cengiz
- Department of Endodontics and Restorative Dentistry, Faculty of Dentistry, Near East University, Mersin, Turkey
| |
Collapse
|
48
|
Sgolastra F, Petrucci A, Gatto R, Marzo G, Monaco A. Photodynamic therapy in the treatment of chronic periodontitis: a systematic review and meta-analysis. Lasers Med Sci 2011; 28:1393-402. [PMID: 22002328 DOI: 10.1007/s10103-012-1181-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Accepted: 07/30/2012] [Indexed: 12/14/2022]
Abstract
This meta-analysis was conducted to investigate the efficacy and safety of antimicrobial photodynamic therapy used alone or adjunctive to scaling root planing in patients with chronic periodontitis. The meta-analysis was conducted according to the QUOROM statement and recommendations of the Cochrane Collaboration. An extensive literature search was performed on seven databases, followed by a manual search. Weighted mean differences and 95% confidence intervals were calculated for clinical attachment level, probing depth and gingival recession. The I(2) test was used for inter-study heterogeneity; visual asymmetry inspection of the funnel plot, Egger's regression test and the trim-and-fill method were used to investigate publication bias. At 3 months, significant differences in clinical attachment level (p = 0.006) and probing depth reduction (p = 0.02) were observed for scaling root planing with antimicrobial photodynamic therapy, while no significant differences were retrieved for antimicrobial photodynamic therapy used alone; at 6 months no significant differences were observed for any investigated outcome. Neither heterogeneity nor publication bias was detected. The use of antimicrobial photodynamic therapy adjunctive to conventional treatment provides short-term benefits, but microbiological outcomes are contradictory. There is no evidence of effectiveness for the use of antimicrobial photodynamic therapy as alternative to scaling root planing. Long-term randomized controlled clinical trials reporting data on microbiological changes and costs are needed to support the long-term efficacy of adjunctive antimicrobial photodynamic therapy and the reliability of antimicrobial photodynamic therapy as alternative treatment to scaling root planing.
Collapse
Affiliation(s)
- Fabrizio Sgolastra
- Department of Health Sciences, University of L'Aquila, San Salvatore 1, Building Delta 6, 67100, L'Aquila, Italy.
| | | | | | | | | |
Collapse
|
49
|
Chen ACH, Huang YY, Sharma SK, Hamblin MR. Effects of 810-nm laser on murine bone-marrow-derived dendritic cells. Photomed Laser Surg 2011; 29:383-9. [PMID: 21214383 PMCID: PMC3105346 DOI: 10.1089/pho.2010.2837] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE The purpose of this study was to investigate the effect of 810-nm low level laser therapy (LLLT) on dendritic cells (DC) in vitro. BACKGROUND DATA LLLT can enhance wound healing and increase cell proliferation and survival, and is used to treat inflammatory conditions. However there are reports that LLLT can stimulate leukocytes and could therefore be pro-inflammatory. Recently, DC have been found to play an important role in inflammation and immune response. METHODS Murine bone-marrow-derived DC were isolated, stimulated with lipopolysaccharide (LPS) or CpG oligodeoxynucleotide and treated with 810-nm laser, using fluences of 0.3, 3, and 30 J/cm(2) delivered at irradiances of 1, 10, and 100 mW/cm(2) respectively. Confocal microscopy, flow cytometry for DC markers, viability using propidium iodide, enzyme-linked immunosorbent assays (ELISA) for secreted interleukin-12 (IL-12), and bioluminescence measurements in cells transduced with a reporter for toll-like receptor (TLR)-9/nuclear factor kappa B (NF-κB) activation, were performed. RESULTS LLLT changed the morphology of LPS-stimulated DC, increased their viability, and altered the balance of DC activation markers (major histocompatibility complex [MHC] class 2 up and CD86 down). LLLT reduced IL-12 secretion from DC stimulated by either LPS or CpG. LLLT reduced NF-κB activation in reporter cells stimulated with CpG. There was no obvious light dose response observed. CONCLUSIONS Taken together, these data suggest that 810-nm LLLT has an anti-inflammatory effect on activated DC, possibly mediated by cyclic adenosine monophosphate (cAMP) and reduced NF-κB signaling.
Collapse
Affiliation(s)
- Aaron C.-H. Chen
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston Massachusetts
| | - Ying-Ying Huang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston Massachusetts
- Department of Dermatology, Harvard Medical School, Boston Massachusetts
- Aesthetic and Plastic Center of Guangxi Medical University, Nanning, P.R China
| | - Sulbha K Sharma
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston Massachusetts
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston Massachusetts
- Department of Dermatology, Harvard Medical School, Boston Massachusetts
- Harvard–MIT Division of Health Sciences and Technology, Cambridge, Massachusetts
| |
Collapse
|
50
|
Low-level infrared laser effect on plasmid DNA. Lasers Med Sci 2011; 27:121-30. [PMID: 21556926 DOI: 10.1007/s10103-011-0905-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2010] [Accepted: 01/18/2011] [Indexed: 12/31/2022]
Abstract
Low-level laser therapy is used in the treatment of many diseases based on its biostimulative effect. However, the photobiological basis for its mechanism of action and adverse effects are not well understood. The aim of this study, using experimental models, was to evaluate the effects of laser on bacterial plasmids in alkaline agarose gel electrophoresis and Escherichia coli cultures. The electrophoretic profile of bacterial plasmids in alkaline agarose gels were used for studying lesions in DNA exposed to infrared laser. Transformation efficiency and survival of Escherichia coli AB1157 (wild-type), BH20 (fpg/mutM(-)), BW9091 (xth(-)), and DH5αF'Iq (recA(-)) cells harboring pBSK plasmids were used as experimental models to assess the effect of laser on plasmid DNA outside and inside of cells. Data indicate low-level laser: (1) altered the electrophoretic profile of plasmids in alkaline gels at 2,500-Hz pulsed-emission mode but did not alter at continuous wave, 2.5- and 250-Hz pulsed-emission mode; (2) altered the transformation efficiency of plasmids in wild-type and fpg/mutM(-) E. coli cells; (3) altered the survival fpg/mutM(-), xthA(-) and recA(-) E. coli cultures harboring pBSK plasmids. Low-level infrared laser with therapeutic fluencies at high frequency in pulsed-emission modes have effects on bacterial plasmids. Infrared laser action can differently affect the survival of plasmids in E. coli cells proficient and deficient in DNA repair mechanisms, therefore, laser therapy protocol should take into account fluencies, frequencies and wavelength of laser, as well as tissue conditions and genetic characteristics of cells before beginning treatment.
Collapse
|