scholarly journals Effect of low-level laser therapy on osseointegration of titanium dental implants in ovariectomized rabbits: biomechanics and micro-CT analysis

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Mustafa Karakaya ◽  
Ahmet Emin Demirbaş
Keyword(s):  
Laser Therapy ◽  
Dental Implants ◽  
Low Level Laser Therapy ◽  
Micro Ct ◽  
Removal Torque ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser ◽  
Significant Difference ◽  
Laser Group

Abstract Purpose The primary aim of this study is to assess, in an animal model, whether biostimulation of osteoporotic bone with low-level laser therapy improves the osseointegration of dental implants. Material and methods Twenty-two female rabbits were randomly divided into two groups: sham-ovariectomy and bilateral-ovariectomy. Laser therapy was applied to the implants placed in the right tibial bones and was not applied to implants placed in the left tibial bones. The periotest device was used for the stability test. Periotest values were recorded after the implantation (T0) and when the animals were euthanized (T1). The removal torque test and micro-computed tomography examination were evaluated. Results As a result of removal torque, the mean of ovariectomy-laser group (56.1 ± 5.1 Ncm) was higher than sham-ovariectomy group (55.4 ± 18.5 Ncm) (p = 0.9). In periotest analysis, a significant difference was found between the values of T1 and T0 in all groups, except sham-ovariectomy group (p < 0.05); and the highest difference was found in the ovariectomy-laser group. Micro-CT examination demonstrated that ovariectomy-laser group showed an increase of implant–bone contact when compared with ovariectomy (p < 0.05). Conclusions The values obtained from biomechanical tests and micro-CT in the ovariectomy-laser group were significantly higher than the ovariectomy group and achieved the values in the healthy bone.

scholarly journals Low-level laser therapy for temporomandibular disorders (tmd) treatment: a systematic review of randomized trials

2014 ◽  
Vol 2 (5) ◽  
pp. 376
Author(s):  
Priscila Leite ◽  
Nicole Melo ◽  
Pâmela Silva ◽  
Robinsom Montenegro ◽  
Paulo Bonan ◽  
...  
Keyword(s):  
Systematic Review ◽  
Temporomandibular Joint ◽  
Laser Therapy ◽  
Diagnostic Criteria ◽  
Temporomandibular Disorders ◽  
Low Level Laser Therapy ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser ◽  
Significant Difference

AIM: Conducting a systematic review of randomized clinical trials focusing on the efficacy of LLLT on pain control in patients with TMD, diagnosed by the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). MATERIAL AND METHODS: Search was performed at PubMed/MEDLINE database with the terms: (1) “Laser AND temporomandibular disorders”; (2) “Laser AND temporomandibular disorders AND RDC/TMD”; (3) “Low-level laser therapy AND temporomandibular disorders”; (4) “Low-level laser therapy AND temporomandibular disorders AND RDC/TMD”; (5) “Low-level laser therapy AND temporomandibular joint dysfuntion syndrome”; (6) “Low-level laser therapy AND temporomandibular joint dysfuntion syndrome AND RDC/TMD”; (7) “Laser AND temporomandibular joint dysfuntion syndrome” (8) “Laser AND RDC/TMD”; (9) “Low-level laser therapy AND RDC/TMD”. Inclusion criteria: articles need to be randomized clinical trial performed in humans; evaluate the effect of LLLT in the treatment of TMD diagnosed by the use of RDC/TMD; published in English or Portuguese in the last 10 years. Protocol studies and pilot studies were excluded. RESULTS: Ten studies were included. The type of laser used was Gallium Aluminum Arsenide (GaAlAs) diode, with exception of 1 paper, which used super pulsed Gallium Arsenide laser. Eight studies reported decreased in pain levels, in two articles there was no statistically significant difference between test and placebo groups. CONCLUSION: In most studies, LLLT was effective in pain remission, but there is no standardization in parameters like wavelength, output power and frequency. Studies with more complex experimental designs, standardized diagnostic criteria for TMD and defined protocols for the use of LLLT are needed to determine its efficacy in the treatment of TMD.

scholarly journals COMPARATIVE EVALUATION OF EFFECT OF IRRADIATION USING LOW- LEVEL LASER THERAPY WITH TWO DIFFERENT WAVELENGTHS ON STABILITY OF DENTAL IMPLANTS

2021 ◽  
Vol 5 (3) ◽  
Author(s):  
Lakshmi Keerthi Kandavalli ◽  
Aravind Kumar Pavuluri ◽  
Musalaiah S.V.V. S
Keyword(s):  
Bone Formation ◽  
Laser Therapy ◽  
Dental Implants ◽  
Low Level Laser Therapy ◽  
Osteotomy Site ◽  
Implant Stability ◽  
Low Level ◽  
Low Level Laser ◽  
Group I ◽  
Level Laser

Aim: This study aimed to compare the effect of low-level laser therapy irradiation with two different wavelengths after osteotomy site preparation on the stability of dental implants. Materials and Methods: The current study is a double-masked, randomized clinical trial. A total of seven patients of age 25 to 55 years were assigned randomly into two groups. Group I: Osteotomy site irradiated with low-level laser therapy of wavelength 940nm. GROUP II: Osteotomy site irradiated with low-level laser therapy of wavelength 660nm. Implant stability was measured after implant placement using the Penguin RFA device. Bone formation was assessed with Cone Beam Computed Tomography. Results: The current trial results showed that low-level laser therapy aided in bone formation around the implants, but there is no significant difference between the two different wavelengths. Conclusion: Implant stability increased in both groups, but no difference is observed among the groups. Hounsfield units indicating bone formation improved in both the groups with no pronounced difference between the groups. All 14 implants were stable, thus indicating that low-level laser therapy aids bone formation, but the wavelength difference had no significant impact. Keywords: Low level laser therapy, Implant Stability, Resonance frequency analysis

Effects of corticopuncture (CP) and low-level laser therapy (LLLT) on the rate of tooth movement and root resorption in rats using micro-CT evaluation

2017 ◽  
Vol 33 (4) ◽  
pp. 811-821 ◽  
Author(s):  
Selly Sayuri Suzuki ◽  
Aguinaldo Silva Garcez ◽  
Patricia Oblitas Reese ◽  
Hideo Suzuki ◽  
Martha Simões Ribeiro ◽  
...  
Keyword(s):  
Laser Therapy ◽  
Tooth Movement ◽  
Root Resorption ◽  
Low Level Laser Therapy ◽  
Micro Ct ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser ◽  
Ct Evaluation

scholarly journals COMPARATIVE STUDY ON THE EFFECTIVENESS OF LOW LEVEL LASER THERAPY VERSUS PHONOPHORESIS IN THE MANAGEMENT OF LATERAL EPICONDYLITIS

2013 ◽  
Vol 03 (01) ◽  
pp. 35-44
Author(s):  
Mohamed Faisal C. K. ◽  
Mary Sumila ◽  
Lawrence Mathias ◽  
Ajith S.
Keyword(s):  
Soft Tissue ◽  
Laser Therapy ◽  
Lateral Epicondylitis ◽  
Soft Tissue Injuries ◽  
Low Level Laser Therapy ◽  
Low Level ◽  
Low Level Laser ◽  
Sodium Diclofenac ◽  
Level Laser ◽  
Laser Group

Abstract Background and Objectives: The use of electro physical agents for the management of any soft tissue injuries in Physical Therapy practice is very common for an early recovery from the injury. Among that, Low Level Laser Therapy (LLLT) and Phonophoresis are found to be very effective in soft tissue injuries. So the objective of this study is to know the comparative effectiveness of LLLT versus Phonophoresis in the treatment of lateral epicondylitis. Methods: Convenient sample of 40 patients with lateral epicondylitis were recruited for this study. They were assigned equally either to a laser (n = 20) or a Phonophoresis (n = 20) group. Laser group received the treatment with Ga-As (904nm) IR semiconductor diode laser. For Phonophoresis group a gel containing 1% sodium diclofenac was used as coupling agent. Each group was treated 3 times a week, for a total of 8 treatments, and was evaluated subjectively and objectively before and at the end of the treatment, by using VAS, pain free grip strength and functional pain scale as variables. Results: Comparison between laser group and Phonophoresis group is done using Mann Whitney U test. Comparison between pre and post is done using Wilcoxon's signed rank sum test. Form selection to the post treatment assessment, a significant decrease in symptoms was found in both laser and phonophoresis groups. But it is concluded that statistically; low level laser therapy was not significantly better than phonophoresis with the results of VAS (P = 0.53), FPS (P = 0.253), pain free grip strength. (P = 0.426). Interpretation and conclusions: The result of this study suggest that low level laser therapy as well as phonophoresis with sodium diclofenac gel as couplant medium gives a good result in the management of lateral epicondylitis. This study concludes that statistically there was no significant difference between Low level laser therapy and Phonophoresis with sodium diclofenac gel as coupling agent in the management of lateral epicondylitis.

Efficacy of Nonsurgical Mechanical Debridement With and Without Adjunct Low-Level Laser Therapy in the Treatment of Peri-Implantitis: A Randomized Controlled Trial

2020 ◽  
Vol 46 (5) ◽  
pp. 526-531 ◽  
Author(s):  
Fawaz Alqahtani ◽  
Nasser Alqhtani ◽  
Sree Lalita Celur ◽  
Darshan Devang Divakar ◽  
Abdulaziz A. Al-Kheraif ◽  
...  
Keyword(s):  
Bone Resorption ◽  
Laser Therapy ◽  
Low Level Laser Therapy ◽  
Periodontal Pocket ◽  
Low Level ◽  
Low Level Laser ◽  
Probing Depth ◽  
Level Laser ◽  
Significant Difference

We hypothesized that in the long term (6-month follow-up), nonsurgical mechanical debridement (NSMD) with adjunct low-level laser therapy (LLLT) is more effective for the treatment of peri-implantitis than NSMD alone. The aim of the present 6-month follow-up convenience-sample cohort study was to assess the efficacy of LLLT as an adjunct to NSMD in the treatment of peri-implantitis. A questionnaire was used to collect demographic information. Patients with peri-implantitis in the test and control groups underwent NSMD with and without adjunct LLLT, respectively. Randomization was done by tossing a coin. In the test group, the laser was applied perpendicular to the periodontal pocket for 20 seconds at a constant distance of 15 mm and with a continuous wavelength (3.41 J/cm2 delivery with a 1.76 cm2 spot and average output of 0.3 W). In both groups, peri-implant probing depth, bleeding upon probing, and crestal bone resorption were assessed at baseline and at the 3-month and 6-month follow-up. Group comparisons were performed, and P &lt; .05 was considered statistically significant. Sixty-seven individuals with peri-implantitis were included. The mean age of participants who underwent NSMD with adjunct LLLT and NSMD alone was 46.5 ± 3.4 and 45.3 ± 1.1 years, respectively. At the 3- and 6-month follow-up, peri-implant (P &lt; .05), bleeding upon probing (P &lt; .05), and probing depth (P &lt; .05) were significantly higher among patients who underwent NSMD alone compared with patients who underwent NSMD with adjunct LLLT. There was no significant difference in crestal bone resorption in all patients up to the 6-month follow-up. In the short term, NSMD with adjunct LLLT was a useful treatment protocol for the treatment of peri-implant soft-tissue inflammation.

scholarly journals Efficacy of low-level laser therapy and aluminum hydroxide in patients with chemotherapy and radiotherapy-induced oral mucositis

2010 ◽  
Vol 21 (3) ◽  
pp. 186-192 ◽  
Author(s):  
Aline Gouvêa de Lima ◽  
Reynaldo Antequera ◽  
Maria Paula Siqueira de Melo Peres ◽  
Igor Moysés Longo Snitcosky ◽  
Miriam Hatsue Honda Federico ◽  
...  
Keyword(s):  
Laser Therapy ◽  
Aluminum Hydroxide ◽  
Oral Mucositis ◽  
Randomized Study ◽  
Low Level Laser Therapy ◽  
Oral Toxicity ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser ◽  
Significant Difference

This study evaluated the efficacy of low-level laser therapy (LLLT) and aluminum hydroxide (AH) in the prevention of oral mucositis (OM). A prospective, comparative and non-randomized study was conducted with 25 patients with head and neck cancer subjected to radiotherapy (RT) or radiochemotherapy (RCT). Twelve patients received LLLT (830 nm, 15 mW, 12 J/cm²) daily from the 1st day until the end of RT before each sessions during 5 consecutive days, and the other 13 patients received AH 310 mg/5 mL, 4 times/day, also throughout the duration of RT, including weekends. OM was measured using an oral toxicity scale (OTS) and pain was measured using the visual analogue scale (VAS). EORTC questionnaires were administered to the evaluate impact of OM on quality of life. The LLLT group showed lower mean OTS and VAS scores during the course of RT. A significant difference was observed in pain evaluation in the 13th RT session (p=0.036). In both groups, no interruption of RT was needed. The prophylactic use of both treatments proposed in this study seems to reduce the incidence of severe OM lesions. However, the LLLT was more effective in delaying the appearance of severe OM.

scholarly journals Low-level laser therapy effectiveness in accelerating orthodontic tooth movement: A randomized controlled clinical trial

2016 ◽  
Vol 87 (4) ◽  
pp. 499-504 ◽  
Author(s):  
Mohammad Moaffak A. AlSayed Hasan ◽  
Kinda Sultan ◽  
Omar Hamadah
Keyword(s):  
Laser Therapy ◽  
Tooth Movement ◽  
Orthodontic Tooth Movement ◽  
Low Level Laser Therapy ◽  
Low Level ◽  
Randomized Controlled ◽  
Low Level Laser ◽  
Level Laser ◽  
Laser Group ◽  
Leveling And Alignment

ABSTRACT Objective: To evaluate the effectiveness of low-level laser therapy (LLLT) in accelerating orthodontic tooth movement of crowded maxillary incisors. Materials and Methods: This two-arm, parallel-group, randomized controlled trial involved 26 patients with severe to extreme maxillary incisors irregularity according to Little's irregularity index, indicating two first premolars extraction. Patients were randomly assigned to either the laser group or the control group (13 each). Following premolars extraction, orthodontic treatment with fixed appliances was initiated for both groups. Immediately after insertion of the first archwire, patients in the laser group received a LLL dose from an 830-nm wavelength Ga-Al-As semiconductor laser device with energy of 2 J/point. The laser was applied to each maxillary incisor's root at four points (two buccal, two palatal). Application was repeated on days 3, 7, 14, and then every 15 days starting from the second month until the end of the leveling and alignment stage. Alignment progress was evaluated on the study casts taken before inserting the first archwire (T0), after 1 month of treatment commencement (T1), after 2 months (T2), and at the end of the leveling and alignment stage (T3). The outcome measures were the overall time needed for leveling and alignment and the leveling and alignment improvement percentage. Results: A statistically significant difference was found between the two groups in the overall treatment time (P &lt; .001) and the leveling and alignment improvement percentage at T1 (P = .004) and T2; (P = .001). Conclusion: LLLT is an effective method for accelerating orthodontic tooth movement.

scholarly journals Effects of low-level laser therapy versus soft occlusive splints on mouth opening and surface electromyography in females with temporomandibular dysfunction: A randomized-controlled study

PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0258063
Author(s):  
Tamer Shousha ◽  
Mohamed Alayat ◽  
Ibrahim Moustafa
Keyword(s):  
Laser Therapy ◽  
Surface Electromyography ◽  
Low Level Laser Therapy ◽  
Controlled Study ◽  
Low Level ◽  
Cell Functions ◽  
Splint Therapy ◽  
Low Level Laser ◽  
Level Laser ◽  
Significant Difference

Background Low level lasers have been used as an alternative pain relief therapy for muscle and joint pain, since it induces analgesic, anti-inflammatory, and biomodulation effects of the physiological cell functions. The effectiveness of low-level laser therapy in temporomandibular joint dysfunction (TMD) treatment, however, is not well established. Although Surface electromyography (sEMG) has been suggested as a complementary means in TMD diagnosis, the effect of conservative treatments on muscle activity has not yet been thoroughly correlated with (sEMG) findings. Purpose To assess the efficacy of low-level laser therapy (LLLT) as compared to occlusive splint therapy (OST) on the TMJ opening index (TOI) and sEMG of masticatory muscles. Materials and methods 112 female subjects suffering from unilateral myogenous TMD, aged 21–30 years-old, were recruited and divided into three groups: LLLT; soft occlusive splint therapy OST and a waitlist group as controls. Outcome measures TMJ opening index (TOI), Visual analogue scale (VAS), surface electromyography (sEMG). Results A significant reduction was reported in TOI, VAS and the sEMG within the LLLT and OST groups as well as significant decrease in all outcomes between groups in favor of the LLLT group (P< 0.0001). Meanwhile, there was a weak significant difference within the control group probably attributed to the analgesic. Post-hoc pairwise comparisons between groups [control vs occlusive splints, control vs low-level laser and low-level laser vs occlusive splints] revealed significant differences in the VAS and TOI [P = 0.0001; 95% CI: 0.9–2.2, 1.61–4.01, 0.65–1.96]. Conclusions Findings support an evident short term therapeutic effect of the LLLT on improving VAS, TOI and sEMG in females suffering from myogenous TMD.

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.

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