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Journal of Lasers in Medical Sciences

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https://www.readbyqxmd.com/read/29123637/diode-laser-assisted-excision-and-low-level-laser-therapy-in-the-management-of-mucus-extravasation-cysts-a-case-series
#1
Abdul Ahad, Shruti Tandon, Arundeep Kaur Lamba, Farrukh Faraz, Parimal Anand, Abdul Aleem
Introduction: Mucus extravasation cyst is a commonly occurring lesion in oral cavity that may result from traumatic severance of a salivary gland duct with subsequent extravasation of mucus into fibrous connective tissue. After a conventional excision or marsupialization, recurrence is not uncommon. Diode laser offers an effective modality for management of such lesions. Case Reports: Four patients were referred with painless fluctuant swellings on labial and buccal mucosa. After recording history and clinical examination, provisional diagnosis of mucocele was made...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29123636/management-of-oral-lichen-planus-by-980-nm-diode-laser
#2
Nahid Derikvand, Seyedeh Sara Ghasemi, Mohammad Moharami, Ehsan Shafiei, Nasim Chiniforush
Introduction: Oral lichen planus (OLP) is a mucocutaneous disease with uncertain etiology. As the etiology is unknown standard treatment modalities are not available. The traditional and common treatment relies on corticosteroids whether topical or systemic. In recent years, development of lasers made a proper path to use this instrument for treatment of the diseases which are refractory to conventional treatments. Previous studies in this field used CO2, ND:YAG, Excimer and some wavelength of diode lasers for the treatment of different types of lichen planus...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29123635/er-yag-laser-and-cyclosporin-a-effect-on-cell-cycle-regulation-of-human-gingival-fibroblast-cells
#3
Hojjat-Allah Abbaszadeh, Ali Asghar Peyvandi, Yousef Sadeghi, Akram Safaei, Mona Zamanian-Azodi, Maryam Sadat Khoramgah, Mostafa Rezaei-Tavirani
Introduction: Periodontitis is a set of inflammatory disorders characterized by periodontal attachment loss and alveolar bone resorption. Because of deficiency in periodontitis mechanical therapy, this study was aimed to explore the molecular influence of the erbiumdoped: yttrium aluminum garnet (Er:YAG) laser and cyclosporin A (CsA) on human gingival fibroblasts (HGFs) for improvement in periodontal diseases therapy. Methods: We focused on articles that studied the proteome profiles of HGFs after treatment with laser irradiation and application of CsA...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29123634/evaluation-of-effectiveness-of-photodynamic-therapy-with-low-level-diode-laser-in-nonsurgical-treatment-of-peri-implantitis
#4
Ehsan Birang, Mohammad Reza Talebi Ardekani, Mahboobeh Rajabzadeh, Gloria Sarmadi, Reza Birang, Norbert Gutknecht
Introduction: Side effects related to antibiotic therapy for peri-implantitis are rare in laser therapy (LT); therefore, the aim of this study was to evaluate the effectiveness of LT and photodynamic therapy (PDT) on patients with primary peri-implantitis. Methods: In this randomized clinical trial, 40 implants presenting primary peri-implantitis in 20 patients with a mean age of 52.6 years old were included using the simple sampling technique. Periodontal treatment comprising scaling and root planing (SRP) was accomplished for the whole mouth while mechanical debridement with titanium curettes and air polishing with sodium bicarbonate powder was accomplished around the implants...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29123633/efficiency-of-a-new-combined-laser-therapy-in-patients-with-trophic-ulcers-of-lower-extremities-and-chronic-venous-insufficiency
#5
Sergey Vladimirovich Moskvin, Aleksandr Vladimirovich Geynitz, Evgeniy Valer'yevich Askhadulin
Introduction: Treating patients with trophic ulcers (TUs) of venous etiology (VE) is a complicated socio-medical and economic problem. One of the ways to increase treatment efficiency can be a complex therapy, including combined laser action. Methods: The objective of this study was a comparative evaluation of the efficiency of traditional treatment methods in patients with chronic venous diseases of C6 class, and combined laser therapy (LT) according to a new method by LASMIK® device. External exposure was conducted on the 1-4 affected area during one session for 2 minutes per zone (pulsed mode, light pulse duration of 100-130 ns, wavelength 635 nm, by a matrix emitter consisting of eight laser diodes with a surface area of 8 cm2, at a distance of up to 7 cm, pulsed power 40 W)...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29123632/management-of-post-endodontic-retreatment-pain-with-low-level-laser-therapy
#6
Mohammad Asnaashari, Hengameh Ashraf, Amir Houshang Daghayeghi, Seyed Masoud Mojahedi, Saranaz Azari-Marhabi
Introduction: Pharmacotherapy with analgesics and non-steroidal anti-inflammatory drugs has been traditionally used to relief post-operative pain of endodontic treatments. However, due to the side effects reported for these drugs, some efforts have been made to decrease the post-operative pain of the endodontic treatments through laser irradiation. The present study aimed to evaluate the effects of low level laser therapy (LLLT) on the reduction of pain after root canal retreatment. Methods: In this clinical trial, 61 patients requiring endodontic retreatments in posterior teeth were selected...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29123631/comparison-between-311-312-nm-narrow-band-ultraviolet-b-phototherapy-and-308-nm-monochromatic-excimer-light-phototherapy-in-treatment-of-vitiligo-a-histopathological-study
#7
Manal Mohamed Salah Eldin, Nevein Ahmed Sami, Dalia Gamal Aly, Noha Sami Hanafy
Introduction: Recently, the monochromatic excimer light (MEL) of 308 nm wavelength has shown some advantages in comparison to narrow band ultraviolet B (NB-UVB) for the treatment of vitiligo. To histopathologically compare the early effects of NB-UVB and 308-nm MEL phototherapy on vitiliginous patches using H&E and HMB-45. Methods: Thirty subjects with non-segmental vitiligo lesions were treated twice a week for 6 weeks with 308-nm MEL, while NB-UVB was used to treat lesions contra laterally. Skin biopsies were taken from lesional areas before and after 6 weeks of treatment by either modality...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29123630/development-of-temperature-distribution-and-light-propagation-model-in-biological-tissue-irradiated-by-980-nm-laser-diode-and-using-comsol-simulation
#8
Kawthar Shurrab, Nabil Kochaji, Wesam Bachir
Introduction: The purpose of this project is to develop a mathematical model to investigate light distribution and study effective parameters such as laser power and irradiated time to get the optimal laser dosage to control hyperthermia. This study is expected to have a positive impact and a better simulation on laser treatment planning of biological tissues. Moreover, it may enable us to replace animal tests with the results of a COMSOL predictive model. Methods: We used in this work COMSOL5 model to simulate the light diffusion and bio-heat equation of the mouse tissue when irradiated by 980 nm laser diode and the effect of different parameters (laser power, and irradiated time) on the surrounding tissue of the tumor treatment in order to prevent damage from excess heat Results: The model was applied to study light propagation and several parameters (laser power, irradiated time) and their impact on light-heat distribution within the tumor in the mouse back tissue The best result is at laser power 0...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29123629/effect-of-low-level-laser-therapy-and-strength-training-protocol-on-hand-grip-by-dynamometry
#9
Rafael Barbosa, Alexandre Marcolino, Vitor Souza, Guilherme Bertolino, Marisa Fonseca, Rinaldo Guirro
Introduction: The purpose of this study was to investigate the effect of low-level laser therapy (LLLT) - 660 nm and 904 nm - before grip strength protocol in healthy subjects. Methods: The study included 45 healthy volunteers with an average age of 22.7 (±1.4) years, subdivided into the following groups, control group: grip strength training associated with placebo LLLT; 660 nm group: LLLT (660 nm, 20 J/cm(2), power of 30 mW, and beam area of 0.06 cm(2), continuous, energy 1.2 J, and exposure time 40 seconds per point) before grip strength training and 904 nm group: LLLT (904 nm, 10 J/cm(2), peak power of 70 W and 0...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29123628/evaluation-of-different-types-of-lasers-in-surface-conditioning-of-porcelains-a-review-article
#10
REVIEW
Amirhossin Mirhashemi, Nastaran Sharifi, Mohammad Moharrami, Nasim Chiniforush
To achieve proper bond strength for porcelains, adequate surface roughness is essential, which is traditionally gained by sandblasting or acid etching with hydrofluoric (HF) acid. Nowadays with the development of laser systems, serious efforts were made to apply this new instrument for surface etching of porcelains due to easy usage, safety, and more efficiency. There are different kinds of lasers and porcelains, so choosing the ones which will be good match for each other is crucial. Besides that, changing the irradiation setting can be beneficial as well...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29071039/laser-assisted-treatment-of-extra-oral-cutaneous-sinus-tract-of-endodontic-origin-a-case-report
#11
Mohammad Asnaashari, Sajedeh Ghorbanzadeh, Saranaz Azari-Marhabi, Seyed Masoud Mojahedi
Introduction: Sinus tract (or fistula) is a common manifestation of pulpal necrosis with periapical pathosis that requires conventional or rarely surgical- endodontic treatment in order to heal. It is mainly identified intraorally and in rare cases manifestation is extra orally, which may frequently be misdiagnosed with cutaneous lesion and incorrectly treated. New technologies such as lasers have been developed as adjuncts to standard endodontic antimicrobial procedures in order to increase the success rate of endodontic therapy while complying with the desire of saving a natural tooth...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29071038/evaluation-of-the-effect-of-different-laser-activated-bleaching-methods-on-enamel-susceptibility-to-caries-an-in-vitro-mode
#12
Sajjad Ashnagar, Abbas Monzavi, Mehdi Abbasi, Mahdi Aghajani, Nasim Chiniforush
Introduction: Today, bleaching is a routine noninvasive alternative for treatment of discolored teeth. The aim of this study was to determine whether conventional or laser activated bleaching predispose teeth to develop caries or not. Methods: Sixty human molars were mounted on acrylic cylinders and their Knoop microhardness (KHN) as well as DIAGNOdent (DD) values were recorded. They were divided into 4 experimental groups; G1) conventional bleaching with 40% hydrogen peroxide gel, G2) Diode laser assisted bleaching with same gel, G3) Nd:YAG laser assisted bleaching with the same gel, G4) control group...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29071037/the-impact-of-plasma-treatment-of-cercon%C3%A2-zirconia-ceramics-on-adhesion-to-resin-composite-cements-and-surface-properties
#13
Kasra Tabari, Sepanta Hosseinpour, Hossein Mohammad-Rahimi
Introduction: In recent years, the use of ceramic base zirconia is considered in dentistry for all ceramic restorations because of its chemical stability, biocompatibility, and good compressive as well as flexural strength. However, due to its chemical stability, there is a challenge with dental bonding. Several studies have been done to improve zirconia bonding but they are not reliable. The purpose of this research is to study the effect of plasma treatment on bonding strength of zirconia. Methods: In this in vitro study, 180 zirconia discs' (thickness was 0...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29071036/comparison-of-er-yag-laser-and-hand-instrumentation-on-the-attachment-of-cultured-human-gingival-fibroblasts-to-periodontally-involved-root-surfaces
#14
Mohammad Reza Talebi-Ardakani, Maryam Torshabi, Elahe Karami, Nazanin Vajar, Zeinab Rezaei Esfahrood, Mansour Meimandi, Seyed Masoud Mojahedi
Introduction: The present study compared the effects of erbium-doped yttrium aluminium garnet (Er:YAG) laser and hand instrumentation on the attachment of human gingival fibroblast (HGF) cells to periodontally involved root surfaces. Methods: A total of 40 tooth specimens were collected and treated in four distinct groups: scaled and root planed with hand instruments, scaled with Er:YAG laser, treated with a combination of hand instruments and Er:YAG laser and non-treated control group. The attachment and proliferation rate of HGF were assessed using MTT assay and scanning electron microscope (SEM) examination was used for cell morphological evaluation...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29071035/a-comparative-study-of-660-nm-low-level-laser-and-light-emitted-diode-in-proliferative-effects-of-fibroblast-cells
#15
Mina Sadat Naderi, Mohammadreza Razzaghi, Gholamreza Esmaeeli Djavid, Zahra Hajebrahimi
Introduction: In recent years, low-power lasers have been widely used in medicine. With the introduction of affordable light emitted diode (LED), clinical application of LED light has become more and more popular. However, some researchers believe that due to lack of coherence of the LED light, it can be different in terms of biological effects, in comparison with laser. In this study, the biological effects of low-level laser (LLL) to those of LED light are compared and discussed. Methods: Human skin fibroblast cell line Hu02 was irradiated with LLL and LED light with a wavelength of 660 nm, power output of 35 mW and in continuous mode and the control group was not irradiated...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29071034/alterations-in-auditory-electrophysiological-responses-associated-with-temporary-suppression-of-tinnitus-induced-by-low-level-laser-therapy-a-before-after-case-series
#16
Katayoon Montazeri, Saeid Mahmoudian, Zahra Razaghi, Mohammad Farhadi
Introduction: Tinnitus is the phantom auditory perception of sound in the absence of an external or internal acoustic stimulus. The treatment is difficult due to multiple etiologies and great psychological influence. The purpose of this study was to determine alterations in auditory physiological and electrophysiological responses associated with temporary suppression of tinnitus induced by low-level laser (LLL) irradiation. Methods: This study was conducted on 20 subjects with subjective tinnitus. All subjects signed the informed consent form and satisfied all the study eligibility criteria...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29071033/stimulation-effect-of-low-level-laser-therapy-on-sciatic-nerve-regeneration-in-rat
#17
Mohammadreza Mashhoudi Barez, Masoud Tajziehchi, Mohammad Hassan Heidari, Atta Bushehri, Fariborz Moayer, Neda Mansouri, Niloufar Safavi Naini, Abolfazl Movafagh
Introduction: Recent studies showed that low-level laser therapy (LLLT) accelerates the regeneration process of injured peripheral nerve tissue. The objective of this study was investigate the effect of LLLT (780 nm) on regeneration of injured right sciatic nerve of male Wistar rat. Methods: In this research work, the effect of LLLT (780 nm) on the regeneration process and reconstruction of injured peripheral right side sciatic nerve was investigated. Twelve adult male Wistar rats underwent surgery in aseptic conditions under general anesthesia to induce a lesion to their right side sciatic nerve according to standard protocol...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29071032/comparative-effectiveness-of-low-level-laser-therapy-and-transcutaneous-electric-nerve-stimulation-on-temporomandibular-joint-disorders
#18
Massoud Seifi, Asghar Ebadifar, Sattar Kabiri, Mohammad Reza Badiee, Zahra Abdolazimi, Parisa Amdjadi
Introduction: Temporomandibular joint disorders (TMDs) are the most common source of pain on the face. There are multiple etiologies, and several types of treatment have been reported. The use of non-invasive and reversible therapies in the treatment of such problems is recommended. The present study evaluated the effect of low-level laser (LLL) therapy and transcutaneous electric nerve stimulation (TENS) on TMDs. Methods: In this single-blind study, 40 patients with temporomandibular disorders were randomly divided into four groups: TENS (TENSTem dental), LLL (diode 810 nm CW), shamTENS, and sham-LLL...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29071031/the-effect-of-combination-of-red-infrared-and-blue-wavelengths-of-low-level-laser-on-reduction-of-abdominal-girth-a-before-after-case-series
#19
Katayoon Montazeri, Soheila Mokmeli, Maryam Barat
Introduction: The objective of this study was to assess the efficacy of a combination of 3 wavelengths (including red, infra-red, and blue) of low-level laser (LLL) as a non-invasive therapeutic method to reduce abdominal girth. To achieve biochemical activity on adipocytes, a red laser was used in our selective laser combination. Near-infrared laser was used to increase depth of penetration. Nitrosyl complexes of hemoglobin (NO-Hb) are sensitive to blue light, thereby leading to increase in release of biologically active nitric oxide (NO), which can affect tissue perfusion...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29071030/diabetic-retinopathy-and-laser-therapy-in-rats-a-protein-protein-interaction-network-analysis
#20
Akram Safaei, Mostafa Rezaei Tavirani, Mona Zamanian Azodi, Alireza Lashay, Seyed Farzad Mohammadi, Mohamad Ghasemi Broumand, Ali Asghar Peyvandi, Farshad Okhovatian, Hassan Peyvandi, Mohammad Rostami Nejad
Introduction: Diabetic retinopathy (DR) is a serious microvascular complication of diabetes which can cause vision loss or blindness ultimately. Non enzymatic glycation of proteins leads to advanced glycation end products (AGEs) in DR. Since laser therapy is a well-established method, in this study, protein-protein interaction (PPI) network is applied for protein targets in DR disease in rats treated by laser. Methods: In this study, we focused on articles that investigated and compared the proteome profiles of DR rats with healthy control and also DR rats before and after laser therapy...
2017: Journal of Lasers in Medical Sciences
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