scholarly journals Light Treatment for Healing Burns

10.29007/lll3 ◽  
2022 ◽  
Author(s):  
Thi Tien Pham ◽  
Mai Thuc Vy Huynh ◽  
Tran Hong Duyen Trinh ◽  
Trung Nghia Tran ◽  
Anh Tu Tran
Keyword(s):  
Laser Therapy ◽  
Regenerative Process ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Low Level ◽  
Low Level Laser ◽  
Group 4 ◽  
Level Laser ◽  
Mouse Activity ◽  
Group 1

This research aims to evaluate the effect of low-level laser therapy (LLLT) on the healing of the burn for the mouse. Four mouses are divided into 4 groups. Group 1, 2, 3 are irradiated by a wavelength of 532nm, 850nm, and 940nm. Group 4 is a control group that has a natural recovery. Low-level laser therapy makes the regenerative process, healing occurs faster, and rehabilitation of mouse activity during treatment.

Assessment of healing of dental implant surgical site following Low-Level Laser Therapy using Bio-Clinical parameters: An Exploratory Study

2020 ◽  
Author(s):  
VARSHA PALLED ◽  
DR. JITENDRA RAO ◽  
DR. RAGHUWAR DAYAL SINGH ◽  
DR. SHUCHI TRIPATHI ◽  
DR. KALPANA SINGH ◽  
...  
Keyword(s):  
Laser Therapy ◽  
Test Group ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Clinical Parameters ◽  
Implant Stability ◽  
Low Level ◽  
Implant Stability Quotient ◽  
Low Level Laser ◽  
Level Laser

The purpose of this study was to evaluate whether Low-Level Laser Therapy (LLLT) improves the healing of the implant surgical site with clinical and biochemical parameters.Thirty patients with an edentulous space spanning a single tooth were selected. The patients were randomly allocated to two groups - the control group and the test group. The test group received laser energy at a power of 2J/cm 2 with a total of 4-6J energy over each implant. Clinical parameters (Implant Stability Quotient, probing index, modified sulcus bleeding index)and osteoprotegerin (OPG) were assessed at baseline and follow-up intervals (2 weeks, 6 weeks, and 3 months).The test group showed significantly higher implant stability quotient compared to thecontrol group at 2 weeks(57.93±3.95 and 35.67±3.08; p<0.01) and 3months(58.86±3.75 and 67.06±3.78; p<0.01). A significant rise in OPG levels of the test group(686.30±125.36pg/ml at baseline and 784.25±108.30pg/ml at 3months;p<0.01) was seen contrary to significant decline in the control group (839.50±249.08pg/ml at baseline,415.30±78.39pg/ml at 3months;p<0.01). Within the limitations of the study, the study suggests that the healing of peri-implant hard and soft tissues may be enhanced with the use of LLLT as an explicit modality during the post-operative period.

scholarly journals Experimental model for low level laser therapy on ischemic random skin flap in rats

2006 ◽  
Vol 21 (4) ◽  
pp. 258-262 ◽  
Author(s):  
Rodrigo Paschoal Prado ◽  
Richard Eloin Liebano ◽  
Bernardo Hochman ◽  
Carlos Eduardo Pinfildi ◽  
Lydia Masako Ferreira
Keyword(s):  
Laser Therapy ◽  
Experimental Model ◽  
Diode Laser ◽  
Skin Flap ◽  
Low Level Laser Therapy ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser ◽  
Group 2 ◽  
Group 1

PURPOSE: To develop an experimental model to be used in the study of low level Laser therapy on viability of random skin flap in rats. METHODS: The sample was 24 Wistar-EPM rats. The random skin flap measured 10 x 4 cm and a plastic sheet was interposed between the flap and donor site. Group 1 (control) underwent sham irradiation with diode laser (830 nm). Group 2 was submitted to laser irradiation with diode laser (830 nm). The animals were submitted to Laser therapy with 36 J/cm² energy density (72 seconds) immediately after the surgery and on the four subsequent days. The probe was usually held in contact with the skin flap surface on a point at 2.5 cm cranial from the flap base. On the seventh postoperative day, the percentage of necrotic area was measured and calculated. RESULTS: Group 1 reached an average necrotic area of 48.86%, Group 2 - 23.14%. After the statistic analysis, compared with the control group, Group 2 showed a statistically significant increase in survival area (p<0.001). CONCLUSION: The experimental model proved to be reliable to be used in the study of effects of low level laser therapy in random skin flap in rats.

ASSESSMENT ON RESULTS OF SURGICAL EXTRACTION OF&NBSP; IMPACTED LOWER THIRD MOLARS WITH POSTOPERATIVE LOW - LEVEL LASER THERAPY

2018 ◽  
Vol 8 (6) ◽  
pp. 130-137
Author(s):  
Huong Nguyen Thi Mai ◽  
Tai Tran Tan ◽  
Khanh Hong Quoc
Keyword(s):  
Laser Therapy ◽  
Third Molar ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Low Level ◽  
Impacted Third Molar ◽  
Low Level Laser ◽  
Level Laser ◽  
Surgical Extraction ◽  
Wisdom Teeth

Background: The most frequently performed surgical procedure in dentistry is impacted third molar extraction with difficulty varies according to the location of the tooth. Laser therapy after surgery can accelerate cell and tissue reconstruction along with relieve post-operative pain. The objective of this study was to investigate the clinical and radiographic characteristics of impacted lower third molar and to evaluate the results of surgical extraction of impacted lower third molar with post-surgical low-level laser therapy (LLLT). Subjects and Methods: Clinical and radiographic data from 90 patients (average age 28.13 ± 5.38) subjected to a surgical extraction of lower third molar were pooled and divided randomly into 3 groups: group 1 received LLLT immediately after surgery intraorally, group 2 treated with LLLT immediately after the extraction extraorally. Patients received routine management with nonactivated laser were inserted in the control group. Assessments of pain, swelling and trismus level were carried out at 24, 48 hours and on the 7th day after surgery. Results: Correlation of wisdom teeth to ramus and adjacent teeth mainly type II (88.9%), type III accounted for 11.1%. Relative depth of wisdom teeth in the bone mainly position B (81.1%), position C (18.9%). Correlation of wisdom teeth axis to adjacent teeth: horizontal (58.9%), mesioangular impactions (40%) and distoangular impaction (1.1%). There were statistically significant decreases in the level of pain, edema and interincisal opening between the laser-treated groups and the control group on the 1st and 2nd postoperative day. Conclusions: Intraoral and extraoral post-surgical low-level laser therapy treatment was useful in reducing swelling, pain and trismus compared to placebo group in impacted third molar surgery. Key words: Impacted lower third molar, low- level laser therapy

Can addition of low level laser therapy to conventional physical therapy be beneficial for management of pain and cervical range of motion in patients with trigger point of upper trapezius?

2020 ◽  
Vol 24 (1) ◽  
pp. 64-68
Author(s):  
Iqra Waseem ◽  
Fahad Tanveer ◽  
Arooj Fatima
Keyword(s):  
Physical Therapy ◽  
Laser Therapy ◽  
Trigger Point ◽  
Low Level Laser Therapy ◽  
Low Level ◽  
Cervical Range Of Motion ◽  
Low Level Laser ◽  
Upper Trapezius ◽  
Level Laser ◽  
Group 1

Objective: Trigger points commonly develop in upper trapezius muscle. These might be associated with neck pain arising from trigger points of trapezius. This study was conducted to compare the effectiveness of conventional physical therapy (CPT) with and without low level laser therapy (LLLT) on pain and cervical range of motion (ROM) in patients with trigger point of upper trapezius muscle. Methodology: An RCT was conducted with a sample size of 62 patients. The study was completed within 9 months after approval of synopsis. Data were collected from Health Care Physiotherapy, Sports, Spine & Rehabilitation Center, Faisalabad (Pakistan). Patients were randomly allocated into two equal groups; 31 patients of Group-1 received low-level laser therapy with CPT, while Group-2 (n=31) patients received CPT as the only treatment protocol. Patients pain level was assessed using Numeric Pain Rating Scale (NPRS) and cervical ROM was measured by goniometry at baseline and subsequently at 2nd and 4th week follow-ups. Results: Results of the study obtained by applying repeated measures ANOVA showed that there was mean reduction in pain scores from day 1 to week 4 in within group analysis of LLLT + CPT Group (Group=1) and within group analysis of CPT Group (Group=2) (p < 0.05). Statistically significant improvement was observed in all mean cervical ROMs especially for lateral flexion ROM for both groups in within group analysis (p < 0.05). Statistically significant improvement was seen in NPRS score at week four between Group-1 and 2, measured by independent sample t-test with p < 0.05. Whereas, independent sample t-test results showed no significant improvement in cervical ROMs at week four between Group-1 and 2 (p ˃ 0.05). Conclusion: Conventional physical therapy and low level laser therapy used in combination are more effective than conventional physical therapy alone in patients of trigger points of upper trapezius. Citation: Waseem I, Tanveer F, Fatima A. Can addition of low level laser therapy to conventional physical therapy be beneficial for management of pain and cervical range of motion in patients with trigger point of upper trapezius? Anaesth pain & intensiv care 2019;23(2):__ DOI: https://doi.org/10.35975/apic.v24i1. Received – 4 September 2019, Reviewed – 31 December 2019, 26 January 2020, Revised – 18 March 2020, Accepted – 9 May 2019

scholarly journals Application of a Low-Level Laser Therapy and the Purified Protein from Natural Latex (Hevea brasiliensis) in the Controlled Crush Injury of the Sciatic Nerve of Rats: A Morphological, Quantitative, and Ultrastructural Study

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Fernando José Dias ◽  
João Paulo Mardegan Issa ◽  
Mamie Mizusaki Iyomasa ◽  
Joaquim Coutinho-Netto ◽  
Ricardo Alexandre Junqueria Calzzani ◽  
...  
Keyword(s):  
Sciatic Nerve ◽  
Laser Therapy ◽  
Ultrastructural Analysis ◽  
Crush Injury ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Low Level ◽  
Injured Nerve ◽  
Low Level Laser ◽  
Level Laser

This study analyzed the effects of a low-level laser therapy (LLLT, 15 J/cm2, 780 nm wavelength) and the natural latex protein (P1, 0.1%) in sciatic nerve after crush injury (15 Kgf, axonotmesis) in rats. Sixty rats (male, 250 g) were allocated into the 6 groups (n=10): CG—control group; EG—nerve exposed; IG—injured nerve without treatment; LG—crushed nerve treated with LLLT; PG—injured nerve treated with P1; and LPG—injured nerve treated with LLLT and P1. After 4 or 8 weeks, the nerve samples were processed for morphological, histological quantification and ultrastructural analysis. After 4 weeks, the myelin density and morphological characteristics improved in groups LG, PG, and LPG compared to IG. After 8 weeks, PG, and LPG were similar to CG and the capillary density was higher in the LG, PG, and LPG. In the ultrastructural analysis the PG and LPG had characteristics that were similar to the CG. The application of LLLT and/or P1 improved the recovery from the nerve crush injury, and in the long term, the P1 protein was the better treatment used, since only the application of LLLT has not reached the same results, and these treatments applied together did not potentiate the recovery.

Equine wound healing: influence of low level laser therapy on an equine metacarpal wound healing model

2012 ◽  
Vol 1 (2) ◽  
Author(s):  
Henry W. Jann ◽  
Kenneth Bartels ◽  
Jerry W. Ritchey ◽  
Mark Payton ◽  
John M. Bennett
Keyword(s):  
Wound Healing ◽  
Laser Therapy ◽  
Low Level Laser Therapy ◽  
Energy Output ◽  
Control Group ◽  
Skin Wounds ◽  
Full Thickness ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser

AbstractTo evaluate the effects of low level laser therapy (LLLT) on healing of full thickness symmetrical skin wounds in horses. LLLT is a therapeutic modality using the application of light, usually a low power laser or light emitting diode in the power range of 1 mW to 12 W that, in practical terms, promotes tissue regeneration as well as reducing inflammation and pain.Experimental study.Healthy horses (n=8).Full thickness, 2.5 cm square skin wounds were created in the mid-metacarpal region on one leg of eight normal horses. LLLT was used on limbs assigned to the experimental group and limbs assigned to the control group were allowed to heal without treatment. LLLT was administered using a line generated optical scanner with a dual diode laser system (model EML; Erchonia Laser Healthcare, McKinney, TX, USA) at a wavelength of 635 nm and an energy output of 17 mW per diode. Wound size was measured for an 80-day period post operatively. Eighty days after surgery incisional biopsies were examined histologically.Wounds treated with LLLT healed faster than the control wounds (LLLT increased the rate of wound healing.

Low-level laser therapy on the rat’s gastrocnemius morphometry submitted to a rheumatoid arthritis model

2021 ◽  
Vol 19 (2) ◽  
pp. 111-115
Author(s):  
Estéfani Marin ◽  
◽  
Jacqueline Lumy Fuse ◽  
Larissa Pereira Lopes ◽  
Morgana Neves ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Laser Therapy ◽  
Wistar Rats ◽  
Low Level Laser Therapy ◽  
Lesion Group ◽  
Control Group ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser ◽  
Significant Difference

Introduction. Rheumatoid arthritis (RA) is a chronic, systemic, autoimmune inflammatory disease of unknown origin, mainly affecting synovial joints and related structures, including the adjacent musculature, generating great disability and reduction in quality of life. Aim. This study was designed to investigate the effect of low-level laser therapy (LLLT) on gastrocnemius of Wistar rats subjected to an experimental model of RA. Material and methods. Forty male Wistar rats were used, separated into: acute and chronic, being subdivided into Control Group (CG): without intervention, Lesion Group (LG): submitted to lesion, Laser Control Group (LCG): without lesion and with treatment, and Laser Lesion Group (LLG): submitted to lesion and LLLT. The treatment with LLLT occurred in four points of the right knee, wavelength of 660 nm, energy density of 5 J/cm2, energy per point of 0.003 J. Morphometric analysis was performed using a 40x magnification photomicrograph and analyzed using the Image-Pro-Plus 6.0 program. Results. As result of the acute group there was a difference only for muscle mass, being higher in CG. For the chronic group there was significant difference for cross-sectional area, larger and smaller diameter, again with the control group obtaining higher values than the others, for the number of nuclei LG was lower than CG and LCG, but LLG was not different from any of them. Conclusion. It is concluded that treatment with LLLT was not very effective in reversing the harmful effects of RA on the gastrocnemius muscle.

Effects of low-level laser therapy on cartilage repair in an experimental model of osteoarthritis

2014 ◽  
Vol 3 (3) ◽  
Author(s):  
Anderson Amaro dos Santos ◽  
Poliani Oliveira ◽  
Kelly Rossetti Fernandes ◽  
Lara Rhon ◽  
Carla Roberta Tim ◽  
...  
Keyword(s):  
Laser Therapy ◽  
Cruciate Ligament ◽  
Treated Group ◽  
Male Rats ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Low Level ◽  
Low Level Laser ◽  
Post Surgery ◽  
Level Laser

AbstractObjective:The aim of this study was to evaluate the effects of low level laser therapy (LLLT) on the degenerative process in the articular cartilage after an anterior cruciate ligament transection (ACLT) model in rats.Methods:Eighty male rats (Wistar) were divided into four groups: 1.) intact control group (CG), 2.) injured control group (ICG), 3.) injured laser-treated group at 10 J/cmResults:Initial signs of tissue degradation could be observed 5 weeks post-ACLT, evidenced by the decrease of proteoglycan concentration and increase in cartilage thickness of the ICG. After 8 weeks post-surgery, analysis showed a progression of the degenerative processes in the ICG revealed by the increased cellularity and higher TNF-α, IL1-β and MMP-13 immunoexpression. LLLT was able to modulate some of the aspects relating to the degradative process, such as biomodulation of the number of chondrocyte proliferation, prevention of proteoglycan loss, and decrease of MMP-13 immunoexpression.Conclusion:This study showed that the 685-nm laser irradiation, especially at 10 J/cm

scholarly journals Effect of Low-level Laser Therapy With Different Locations of Irradiation on Postoperative Endodontic Pain in Patients With Symptomatic Irreversible Pulpitis: A Double-Blind Randomized Controlled Trial

2019 ◽  
Vol 11 (3) ◽  
pp. 249-254 ◽  
Author(s):  
Mandana Naseri ◽  
Mohammad Asnaashari ◽  
Elham Moghaddas ◽  
Mohammad Reza Vatankhah
Keyword(s):  
Laser Therapy ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Time Intervals ◽  
Double Blind ◽  
Effective Measure ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser ◽  
Irreversible Pulpitis

Introduction: This double-blind, placebo-controlled, clinical trial aimed to investigate the analgesic efficacy of low-level laser therapy (LLLT) with two different locations, and their comparison, in postoperative endodontic pain (PEP) levels in molars diagnosed with symptomatic irreversible pulpitis. Methods: Seventy-five patients with a molar tooth, diagnosed with symptomatic irreversible pulpitis, were divided into three groups of placebo, buccal only irradiation (BI), and buccal and lingual irradiation (BLI), with 25 cases being in each group. The participants received similar singlevisit nonsurgical endodontic treatments. Then, a sham laser was used in the control group instead of LLLT. Individuals in BI and BLI groups received 80-second irradiation on the buccal surface and 80-second irradiation on each of the buccal and lingual surfaces respectively. A laser with an 808 nm wavelength, power of 100 mW, a fiber diameter of 600 μm, and a dose of 70 J/cm2 was used. PEP was assessed using a 0-100 mm VAS 4, 8, 24, and 48 hours after the treatment. Results: BLI showed a significantly higher reduction of PEP compared to placebo in all time intervals of this study. BLI was significantly more effective than BI 8 hours after the treatment. However, intragroup differences between BLI and BI groups at other time intervals and between BI and placebo groups in all time intervals were not significant. The number of taken analgesics in the BLI group was significantly lower than the placebo group and was on a statistical borderline compared to the BI group. Conclusion: LLLT with BLI was an effective measure as a supplement to oral analgesics in the reduction of PEP compared to the placebo.

scholarly journals THE EXPRESSION OF TGF-1 AFTER LOW LEVEL LASER THERAPY IN INFLAMMATION ANIMAL MODEL

2017 ◽  
Vol 53 (1) ◽  
pp. 29
Author(s):  
Imam Subadi ◽  
Indrayuni Lukitra Wardhani ◽  
Andriati Andriati
Keyword(s):  
Laser Therapy ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Treatment Groups ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser

Pain is the most common complaints in everyday practice. Pain is a clinical manifestation caused by stimuli due to potential tissue damage. Low level laser therapy (LLLT) has been used in reducing pain. One of indicator tissue healing is activation of transforming growth factor -b1(TGF-b1). Tissue healing will eliminate the pain. Do LLLT stimulate TGF-b1 expression? The objective of this study was to investigate the expression of TGF-b1 in low level laser therapy. Thirty male Wistar rats, body weight 250 – 300 gram, 3 month old, were divided into 3 groups, negative control (n=10), positive control (n=10) and treatment groups (n=10). The positive control and treatment groups were injected with Complete’s Freund Adjuvant (CFA) 100 mL at left footpad. The treatment group treated with low level laser therapy Lasermed type 2100 wavelength 905 nm, out power 25-500 mW, dose 1 joule/cm2;5 times with interval 24 hours on left footpad. Samples were taken from the skin of footpad and immunohistochemical examination with monoclonal antibody anti- TGF-b1. Calculations carried out on brown reaction in macrophage cell. Data were analyzed using the Games Howell with SPSS 17. There were significant differences in the expression of TGF-b1 in treatment group (15.8±3.1) compared with the positive control group (3.9±1.1) and negative control group (4.6±2.1). There were no significant differences between expression TGF-b1 in positive control group and negative control group. In conclusion, low level laser therapy increased the expression of TGF-b1.

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