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Journal of Lasers in Medical Sciences

Ali Akbar Jafarian, Ali Farhoodi, Mahnoush Momeni, Mohammad Reza Babaei, Nooshafarin Kazemikhoo
Introduction: Avascular necrosis (AVN) of the femoral head is an increasingly common cause of musculoskeletal disability with unknown etiology. Traumatic and non-traumatic factors can be effective in its occurrence. About 50% of cases are bilateral. The underlying treatment is prosthetic replacement surgical procedure. Case Presentation: We report a case of bilateral AVN of femoral heads who was a candidate for prosthetic replacement surgery but improved significantly, using laser acupuncture. The patient was a 55-year-old woman with a diagnosis of bilateral osteonecrosis of the femoral head for five years...
2018: Journal of Lasers in Medical Sciences
Zahra Khamverdi, Matin Kordestani, Narges Panahandeh, Fariba Naderi, Shahin Kasraei
Introduction: It has been suggested that the application of casein phosphopeptide-amorphous calcium phosphate paste (CPP-ACP) and CO2 laser irradiation on enamel could increase the resistance of enamel to caries and acid attacks. The aim of the current study was to compare the influence of CPP-ACP paste application and irradiation of CO2 laser on microhardness of demineralized enamel. Methods: Thirty sound maxillary extracted premolars were selected. The crowns were cut at the cervical line and were split into facial and palatal halves...
2018: Journal of Lasers in Medical Sciences
Nooshafarin Kazemikhoo, Reza Vaghardoost, Mostafa Dahmardehei, Soheila Mokmeli, Mahnoush Momeni, Mohammad Ali Nilforoushzadeh, Fereshteh Ansari, Mohammad Reza Razagi, Zahra Razagi, Mohammad Amir Amirkhani, Mohammad Reza Masjedi
Introduction: Skin graft is the standard therapeutic technique in patients with deep ulcers, but like every surgical procedure, it may present some complications. Although several modern dressings are available to enhance comfort of donor site, the use of techniques that accelerate wound healing may enhance patient's satisfaction. Low level laser therapy (LLLT) has been used in several medical fields, especially for wound healing, but it may take several months for large ulcers treated with laser to heal completely...
2018: Journal of Lasers in Medical Sciences
Aline Carla Teles de Sousa, Ítalo Bruno Paiva da Rocha, Ana Flávia Machado de Carvalho, Nayana Pinheiro Machado de Freitas Coelho, Maura Cristina Porto Feitosa, Esmeralda Maria Lustosa Barros, Emilia Angela Lo Schiavo Arisawa, Maria Rosilândia Lopes de Amorim
Introduction: An ulcer is an injury that affects the skin and has many causes. Healing is a way of protecting the body against any infectious agent that tries to infect you through the wound. Low level laser (LLL) in the treatment of ulcers, aims at maintaining the stability of the physiological process of tissue repair and ultrasound (US) acts by increasing the elasticity of tissue and scarring. The aim of this study was to analyze the effects of LLL and US in wound healing of ulcers induced in mice. Methods: In this experimental study, a sample of 36 guinea pigs was divided into 6 groups of 6 mice, 2 groups as control (C7) and (C14), 2 treated with laser (GL7) and (GL14) and the others 2 treated with ultrasound (GU7) and (GU14)...
2018: Journal of Lasers in Medical Sciences
Hisham Shokeir, Nevien Samy, Hend Mahmoud, Mohamed L Elsaie
Introduction: Hirsutism is a condition that affects 10% of women worldwide. In many cultures, hirsutism is regarded as loss of femininity and can be psychologically traumatizing to the suffering females. The aim of the present study was to evaluate how topical capislow would affect or enhance the efficacy of laser hair removal. Methods: A randomized, monoblinded, placebo controlled split face study of combined topical capislow and long pulsed Nd-YAG laser on one side of the face versus long pulsed Nd-YAG laser alone on the opposite side of the face...
2018: Journal of Lasers in Medical Sciences
Niloofar Sefati, Hojjat-Allah Abbaszadeh, Fatemeh Fadaei Fathabady, Mohammad-Amin Abdollahifar, Abdollah Amini, Ali Noori-Zadeh, Shahram Darabi, Mohsen Norouzian
Introduction: Several experimental studies have displayed positive result for laser radiation on stimulating bone regeneration in recent years. The purpose of this experimental study was to determine low-level laser (LLL) effects on partial bone defects in hypothyroidism male rat. Methods: Forty male Wistar rats were randomly distributed as below groups: hypothyroidism + laser (Hypo + laser), hypothyroidism (Hypo), and control. Four weeks after surgery, the tibia bone was removed. Biomechanical and histological examinations were performed immediately...
2018: Journal of Lasers in Medical Sciences
Fayiz F El-Shamy, Sand S El-Kholy, Marwa M Abd El-Rahman
Introduction: Polycystic ovarian syndrome (PCOS) is one of the most widely recognized reasons for infertility. The aim of this study was to examine the impact of laser acupuncture on PCOS women. Methods: Twenty-five PCOS women were randomly allocated to either the study group (SG; n=13), treated by laser acupuncture, or the control group (CG; n = 12). Blood hormonal levels and insulin resistance were measured at baseline and after 12 weeks of intervention. Results: The pre-intervention levels showed no statistically significant differences between SG and CG for baseline characteristics ( P >0...
2018: Journal of Lasers in Medical Sciences
Neda Moslemi, Nina Rouzmeh, Fatemeh Shakerinia, Abbas Bahador, Pardis Soleimanzadeh Azar, Mohammad Javad Kharazifard, Mojgan Paknejad, Reza Fekrazad
Introduction: Porphyromonas gingivalis is one of the major pathogens in the development and progression of periodontal disease. Antimicrobial photodynamic therapy (aPDT) is a new approach which is sorted in non-invasive phototherapy for bacterial elimination. This in vitro study was conducted to compare photodynamic inactivation using Radachlorin and Toluidine blue O (TBO) as photosensitizers on P. gingivalis . Methods: Bacterial suspensions (200 µL) of P. gingivalis were exposed to either TBO with concentration of 0...
2018: Journal of Lasers in Medical Sciences
Farzaneh Ahrari, Alireza Boruziniat, Hamideh Sadat Mohammadipour, Mehrnoosh Alirezaei
Introduction: This study investigated the effect of fractional CO2 laser on shear bond strength (SBS) of resin cement to feldspathic porcelain. Methods: Sixty blocks of unglazed feldspathic porcelain were randomly divided into 5 groups of 12 by treatment. Group 1 and 2 underwent etching with 9.6% hydrofluoric acid (HF) and air abrasion with alumina particles, respectively. In groups 3 and 4, a fractional CO2 laser was applied for 10 seconds using 20 W/10 mJ (group 3) or 15 W/20 mJ (group 4). The specimens in group 5 were first treated by fractional CO2 laser (15 W/20 mJ) and then etched by HF acid...
2018: Journal of Lasers in Medical Sciences
Elisabetta Merigo, Luigi Cella, Aldo Oppici, Maria Cristina Arbasi, Fabio Clini, Matteo Fontana, Carlo Fornaini
Introduction: The proper therapeutic plan for medication-related osteonecrosis of the Jaw (MRONJ) is still lacking long-term data up to today. They were several high-technological appliances proposed for the different intervention steps, in addition to tissue repair promoters. The reason for proposing an integrated technique is justified, beyond better compliance of the patients associated to the pain and inflammation reduction and bleeding control, there is also achieving better hard and soft tissues healing...
2018: Journal of Lasers in Medical Sciences
Moluk Aivazi, Mohammadhossein Fathi, Farahnaz Nejatidanesh, Vajihesadat Mortazavi, Batoul Hashemi Beni, Jukka Pekka Matinlinna
Introduction: Zirconia bioceramic can be considered for metallic replacement in dental implant applications. A proper method of surface modification may promote better osseointegration. Methods: In study evaluated viability of fibroblast cell following surface treatment. Therefore, viability L929 cells were characterized using MTT assay and scanning electron microscopy. Results: The viability assessment determined significant differences A-Y-TZP20 without surface treatment as compared to laser surface treatment (B), laser surface treatment + hydroxyapatiteyttrium stabilized tetragonal zirconia nanocomposite coat (C) and control...
2018: Journal of Lasers in Medical Sciences
Mahdi Abbasi, Afrooz Nakhostin, Fatemeh Namdar, Nasim Chiniforush, Masomeh Hasani Tabatabaei
Introduction: The present in vitro study evaluated the recurrence rate of caries following cavity preparations with bur (conventional technique) and irradiation by Erbium:Yttrium- Aluminum-Garnet (Er:YAG) laser through micro hardness test. Methods: A total of 72 human extracted molars were randomly divided into 3 groups and class 5 cavities were prepared on them with 3 different methods: G1) conventional bur, G2) Er:YAG laser irradiation alone and G3) laser irradiation + laser treatment. The specimens were immersed in the artificial caries solution with pH of 2...
2018: Journal of Lasers in Medical Sciences
Amrita Jha, Vivek Gupta, Roopa Adinarayan
Laser has emerged as an adjunct in several treatment modalities in dentistry in the past few decades. This less invasive bladeless technique is bringing revolutionary outcomes in a plethora of periodontal treatment procedures as well. A unique ameliorative approach termed LANAP, described as laser-assisted new attachment procedure was developed by Gregg and McCarthy. In 1990 they introduced an innovative treatment for diseases of gums incorporating pulsed neodymium yttrium aluminum garnet (Nd: YAG) 1064 nm wavelength laser (PerioLase MVP7)...
2018: Journal of Lasers in Medical Sciences
Seda Sevinç Özberk, Hasan Gündoğar, Süleyman Ziya Şenyurt, Kamile Erciyas
Necrotizing ulcerative gingivitis (NUG) is a microbial disease of the gingiva in the context of an impaired host response. This form of gingivitis is relatively rare. NUG is an infection characterized by gingival necrosis presenting as "punched-out" papillae, spontaneous bleeding, pain, oral malodor, and pseudomembrane formation. The primary predisposing factors are bacterial plaque and an inadequate diet, but smoking and psychological stress may also affect the disease severity. NUG is associated with a characteristic bacterial flora, which includes fusiform bacteria, spirochetes, and Prevotella intermedia...
2018: Journal of Lasers in Medical Sciences
Morteza Fallah Karkan, Saleh Ghiasy, Arash Ranjbar, Babak Javanmard
Introduction: Presently, different holmium: yttrium aluminum garnet (Ho:YAG) laser calibers are used for endoscopic stone treatment, which include 200, 365, 500 and 1000 Mm fibers. Currently, there are not enough studies to compare the performance of these fibers. In this retrospective investigation, we compared the outcome of 200, 365 and 500 Mm fibers of Ho:YAG laser in transurethral lithotripsy of ureteral stone. Methods: From January 2016 to June 2017, 74 subjects with mean age of 35.3 ± 5.6 were randomly allocated to 3 groups according to the caliber of laser, 200, 365 and 500 Mm for transurethral lithotripsy...
2018: Journal of Lasers in Medical Sciences
Hooman Ebrahimi, Shamsolmoulouk Najafi, Mina Khayamzadeh, Amirabbas Zahedi, Atossa Mahdavi
Introduction: Trigeminal neuralgia (TN) is the most common neuralgia in the head and neck region and a common cause of orofacial pain. It is routinely treated with carbamazepine. Laser, acupuncture and radiofrequency are among other treatment modalities for this condition. This study sought to assess the efficacy of laser therapy in conjunction with carbamazepine for treatment of TN. Methods: A total of 30 patients who met the inclusion criteria were divided into 2 groups of cases and controls (n=15) by double blind randomized controlled clinical trial...
2018: Journal of Lasers in Medical Sciences
Nazanin Kiomarsi, Yasaman Arjmand, Mohammad Javad Kharrazi Fard, Nasim Chiniforush
Introduction: The aim of this study was to assess the effect of surface treatment with erbium: yttrium-aluminum-garnet (Er:YAG) and erbium, chromium: yttrium-scandium-gallium-garnet (Er,Cr:YSGG) lasers on shear bond strength of composite resin to recently bleached dentin. Methods: In this study, 40 extracted human premolars were selected. The teeth were cut 4 mm apical to the cusp tip and were randomly divided into four groups (n=10 in each group) for shear bond strength testing. For bleaching, 35% hydrogen peroxide (H2 o2 ) gel (Opalescence Endo, Ultradent, South Jordan, UT, USA) was applied to dentin surfaces of all specimens for 10 days...
2018: Journal of Lasers in Medical Sciences
Parinaz Mehnati, Sirous Khorram, Mohammad Sadegh Zakerhamidi, Farhood Fahima
Introduction: Near-infrared (NIR) optical imaging is a non-ionizing modality that is emerging as a diagnostic/prognostic tool for breast cancer according to NIR differentiation of hemoglobin (Hb) concentration. Methods: The transmission values of LED-sourced light at 625 nm were measured by power meter to evaluate the optical properties of Hb in breast phantom containing major and minor vessels. For the simulation of blood variations in cancerous breast condition, we prepared 2 concentrations of pre-menopausal Hb and 4 concentrations of post-menopausal Hb and, for comparison with normal tissue, one concentration of Hb injected inside the phantom's vessels...
2018: Journal of Lasers in Medical Sciences
Majid Mahmoudzadeh, Loghman Rezaei-Soufi, Nasrin Farhadian, Seyed Farzad Jamalian, Mahdi Akbarzadeh, Mohammadali Momeni, Masome Basamtabar
Introduction: Orthodontic treatment has many advantages such as esthetic improvement and self-esteem enhancement; yet it has some disadvantages such as increasing the risk of formation of white spot lesions, because it makes oral hygiene more difficult. It is rational to implement procedures to prevent these lesions. The present study was aimed to assess the effect of CO2 laser and fluoride varnish on the surface of the enamel surface microhardness around the orthodontic braces. Methods: Eighty extracted premolar teeth were selected, scaled, polished with nonfluoridated pumic and metal brackets were bonded to them...
2018: Journal of Lasers in Medical Sciences
Sedighe Sadat Hashemikamangar, Masoome Hasanitabatabaee, Saman Kalantari, Mehrzad Gholampourdehaky, Ladan Ranjbaromrani, Hooman Ebrahimi
Introduction: This study aimed to determine the bond strength of fiber post to composite core following surface treatment with Er,Cr:YSGG laser at different powers and sandblasting with and without thermocycling. Methods: In this experimental study, 30 fiber posts (Glassix, Nordin, Switzerland) were randomly divided into 5 groups of sandblasting, no treatment and laser irradiation at 1, 1.5 and 2 W powers. Following composite filling and mounting, 1-mm thick sections were made for pushout bond strength testing...
2018: Journal of Lasers in Medical Sciences
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