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Photomedicine and Laser Surgery

Banu Öter, Nursen Topçuog Lu, Mehmet K Tank, Sevi Burçak Çehreli
BACKGROUND: A successful primary root canal treatment depends on effective shaping and cleaning the root canal system and finally filling it with a hermetic sealer. Clinically, roots of primary teeth are difficult to shape and the irrigation/disinfection protocol has great importance on prognosis. OBJECTIVE: The present study evaluated the antibacterial efficiency of Endosafe (Orangedental GmbH & Co. KG), photo-activated disinfection (PAD; Orangedental GmbH & Co...
February 26, 2018: Photomedicine and Laser Surgery
Takashi Yoneda, Naosuke Nonoguchi, Naokado Ikeda, Ryokichi Yagi, Shinji Kawabata, Motomasa Furuse, Yoshinobu Hirose, Hiroko Kuwabara, Yoji Tamura, Yoshinaga Kajimoto, Toshihiko Kuroiwa
OBJECTIVE: This study is intended to objectively clarify the relationship between the fluorescence intensity emitted by protoporphyrin IX (PpIX), which is a metabolite of 5-aminolevulinic acid (ALA), and histological findings during glioblastoma surgery. BACKGROUND: ALA is widely used for the intraoperative detection of tumors. There are several reports about the fluorescence of PpIX and the histological findings of tumors, but judgments about the fluorescence intensity depend largely on the subjective sense of each surgeon...
February 26, 2018: Photomedicine and Laser Surgery
Cinara Stein, Rafael Oliveira Fernandes, Aline Paula Miozzo, Christian Correa Coronel, Bruno Manfredini Baroni, Adriane Belló-Klein, Rodrigo Della Méa Plentz
OBJECTIVE: The aim of this study was to evaluate the acute effects of low-level laser therapy (LLLT) on the functional capacity to exercise tested by incremental shuttle walking test (ISWT) after coronary artery bypass graft (CABG) surgery. METHODS: Fifteen male patients (60 ± 9 years) were crossed over during the experiment, to compare the outcomes after active LLLT and placebo LLLT treatments. LLLT (850 nm, 200 mW, 30 J to each point, resulting in a total of 240 J per quadriceps muscle), using a multidiode cluster (five spots; 6 J/spot) in eight points per leg was performed 3 min before the ISWT...
February 21, 2018: Photomedicine and Laser Surgery
Stella Maris Lins Terena, Kristianne Porta Santos Fernandes, Sandra Kalil Bussadori, Aldo Brugnera Junior, Daniela de Fátima Teixeira da Silva, Eric Moreno Ramos Magalhães, Raquel Agnelli Mesquita Ferrari
BACKGROUND: The photobiomodulation using the low-level laser therapy (LLLT) exerts a positive modulating effect on the synthesis of collagen in skeletal muscles and tendons. However, few studies have addressed this effect during the compensatory overload. OBJECTIVE: Evaluate the effect of infrared laser on the deposition and organization of collagen fibers in muscle and tendon tissue during compensatory overload of the plantar muscle in rats. MATERIALS AND METHODS: Wistar rats were submitted to bilateral ablation of the synergist muscles of the hind paws and divided in groups: Control, Hypertrophy, and Hypertrophy (H)+LLLT (780 nm, 40 mW, 9...
February 21, 2018: Photomedicine and Laser Surgery
Michael R Hamblin, Scott T Nelson, Justin R Strahan
BACKGROUND: Photobiomodulation (PBM) therapy is a rapidly growing approach to stimulate healing, reduce pain, increase athletic performance, and improve general wellness. OBJECTIVE: Applying PBM therapy over the site of a tumor has been considered to be a contraindication. However, since another growing use of PBM therapy is to mitigate the side effects of cancer therapy, this short review seeks to critically examine the evidence of whether PBM therapy is beneficial or harmful in cancer patients...
February 21, 2018: Photomedicine and Laser Surgery
Mehmet Emre Coskun, Kubra Acikalin Coskun, Yusuf Tutar
OBJECTIVE: The aim of this study was to determine the optimum operating parameters (pulse duration, energy levels, and application time) to promote induction of osteoblast and fibroblast cell proliferation and to maintain cell viability treated with low-intensity pulsed ultrasound (LIPUS) and low-level laser therapy (LLLT). BACKGROUND DATA: The positive effects of LIPUS and LLLT on cellular activity have been reported in recent years. Comparisons between experimental parameters of previous studies are difficult because scientific studies reported frequencies and the duty cycles of LIPUS and wavelengths and doses of LLLT in a wide range of parameters...
February 21, 2018: Photomedicine and Laser Surgery
Amal Yousif Al-Yasiri
OBJECTIVE: The present study investigates whether the exposure to low-power diode laser induces denaturation in red blood cell (RBC) membrane protein composition, and determines the irradiation time for when denaturation of membrane protein process begins. BACKGROUND: A low-energy laser has been used extensively in medical applications. Several studies indicated significant positive effects of laser therapy on biological systems. In contrast, other studies reported that laser induced unwanted changes in cell structure and biological systems...
February 2, 2018: Photomedicine and Laser Surgery
Didem Nalbantgil, Murat Tozlu, Mehmet Oguz Oztoprak
OBJECTIVE: This study was done to compare the intrapulpal temperature change generated by different energy levels of Er:YAG laser used during debonding of ceramic brackets and find the most suitable level for clinical use. MATERIAL AND METHODS: Eighty polycrystalline alumina brackets were bonded on bovine incisor teeth, which were randomly divided into 4 groups of 20. One group was assigned as control. In the study groups, after laser exposure with 2, 4, or 6 Watt energy levels, brackets were debonded using an Instron Universal Testing machine...
February 2, 2018: Photomedicine and Laser Surgery
Santo Mercuri, Pina Brianti, Enza Cestone, Annunziata Dattola, Steven Paul Nisticò
BACKGROUND: Laser technology provides different solutions for scar treatment from the traditional ablative lasers to the more recent fractional devices. PATIENTS AND METHODS: We present the case of a young woman treated for scars induced by severe whipping since the age of 10. She received four monthly nonablative fractional 1550 nm erbium glass laser treatments. Fluence used was 20 mJ/cm2 with 1500 microthermal zones/cm2. RESULTS: Significant improvement was documented in the color and texture of the lesion at the end of treatment and at follow-up...
February 2, 2018: Photomedicine and Laser Surgery
Fernando Luis Florez Esteban, Morgana Regina Mendonça de Oliveira, Osmir Batista de Oliveira Júnior, Rochelle Denise Hiers, Sharukh Soli Khajotia, Hermes Pretel
OBJECTIVE: A non-destructive and real-time bioluminescence (BL) assay was used to determine the utility of antimicrobial photodynamic therapy (aPDT) treatments mediated by methylene blue (MB) and laser irradiation (LI) against intact biofilms that are capable of producing caries (cariogenic). The efficacy of antibacterial photodynamic treatments has been currently determined by using either viable colony counts (VCC) or metabolic assays (Alamar Blue) that were demonstrated to have critical limitations when used on microcolony-forming bacteria such as Streptococcus mutans...
January 9, 2018: Photomedicine and Laser Surgery
Steffen Stein, Johannes Wenzler, Andreas Hellak, Michael Schauseil, Heike Korbmacher-Steiner, Andreas Braun
OBJECTIVE: This study investigated temperature increases in dental pulp resulting from laser-assisted debonding of ceramic brackets using a 445-nm diode laser. MATERIALS AND METHODS: Eighteen ceramic brackets were bonded in standardized manner to 18 caries-free human third molars. Pulpal fluid circulation was simulated by pumping distilled water at 37°C through the pulp chamber. The brackets were irradiated with a 445-nm diode laser. Temperatures were measured using a thermal camera at points P1 (center of the pulp) and P2 (in the hard dental tissue) at the baseline (T0), at the start and end of laser application (T1 and T2), and the maximum during the sequence (Tmax)...
January 3, 2018: Photomedicine and Laser Surgery
Santo Raffaele Mercuri, Pina Brianti, Antonio Foti, Marco Bartolucci, Annunziata Dattola, Steven Paul Nisticò
OBJECTIVE: We treated two patients with recalcitrant lichen sclerosus (LS) of the penis with a combination of 1927 nm thulium fiber laser and methyl-aminolevulinate (MAL) photodynamic therapy (PDT). BACKGROUND DATA: Therapy of LS is based on topical potent steroids, emollients, and topical calcineurin inhibitors. Circumcision is effective, but not always accepted. PDT represents a valid therapeutic option in refractory cases, but there are no reports about the association with 1927 nm thulium laser in the treatment of this pathology...
January 3, 2018: Photomedicine and Laser Surgery
Ozgur Genc Sen, Melih Kaya
OBJECTIVE: To evaluate the safety of sodium hypochlorite (NaOCl) irrigation using three different techniques during the final rinse in overinstrumented root canals. BACKGROUND DATA: The effect of irrigant activation on irrigant extrusion from overinstrumented root canals is still unclear. METHOD: A total of 30 single-rooted teeth were decoronated. The working lengths were determined and the roots were divided into two groups of 15 teeth each: group 1, instrumentation 0...
December 21, 2017: Photomedicine and Laser Surgery
Ingvill Fjell Naterstad, Rafael Paolo Rossi, Rodrigo Labat Marcos, Nivaldo Antonio Parizzoto, Lucio Frigo, Jón Joensen, Patrícia Sardinha Leonardo Lopes Martins, Jan Magnus Bjordal, Rodrigo Alvaro Brandão Lopes-Martins
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...
December 21, 2017: Photomedicine and Laser Surgery
Sinem Akgul, Oya Bala, İhsan Yikilgan
OBJECTIVE: The aim of this in vitro study was to evaluate the diagnostic performance of visual inspection (VI), laser fluorescence (LF pen), fluorescence camera (FC), and alternating current impedance spectroscopy technique (ACIST) for detection of incipient occlusal caries lesions. Histology was used as the gold standard to determine the interexaminer reliability of the methods, among three examiners with different levels of experiences (Examiner 1: 5 years; examiner 2: 10 years; and examiner 3: 25 years)...
December 20, 2017: Photomedicine and Laser Surgery
(no author information available yet)
No abstract text is available yet for this article.
February 2018: Photomedicine and Laser Surgery
Jan Tunér
No abstract text is available yet for this article.
February 2018: Photomedicine and Laser Surgery
Grzegorz Piotrowicz, Tomasz Syryło, Rafał Jedynak, Henryk Zieliński
OBJECTIVE: The objective of this study was to evaluate the safety and effectiveness of photoselective vaporization of the prostate (PVP) in the treatment of patients with benign prostatic hyperplasia (BPH) on anticoagulant or antiplatelet therapy. BACKGROUND: The "gold standard" of surgical treatment of BPH is transurethral resection of the prostate (TURP). Since the risk of complications associated with TURP is still significant, there is a continuous search for safer and equally effective procedures...
December 11, 2017: Photomedicine and Laser Surgery
Gyorgy Paragh, Nathalie C Zeitouni
OBJECTIVE: To evaluate the ability of two-step irradiance to maintain pain control during red light 5-aminolevulinic acid (ALA) photodynamic therapy (PDT) for actinic keratoses (AK) and assess factors influencing pain. BACKGROUND: PDT provides excellent clinical and cosmetic results in the treatment AK and early basal cell carcinomas (BCC). Widespread use of PDT is limited, in part, by pain. A two-step irradiance method for PDT has previously been shown to significantly reduce PDT-associated pain during the treatment of BCC, but the ability of this method to limit pain during the treatment of AKs has not been reported...
December 11, 2017: Photomedicine and Laser Surgery
Nabil A Al-Zoubi, Rami J Yaghan, Tagleb S Mazahreh, Emad M Hijazi, Ahmad Alqudah, Yasmin N Owaisy, Shadi Hamouri, Nawaf J Al-Shatnawi
OBJECTIVE: To measure pre- and postoperative plasma concentrations of growth factors (VEGF, PDGF, EGF, ANG1, and ANG2) in patients with primary lower limb varicose veins (VVs) treated with endovenous laser ablation (EVLA). BACKGROUND: Many studies have explored the potential relationship between primary VVs and growth factors. No previous studies were done for patients treated with EVLA. MATERIALS AND METHODS: Blood samples were obtained from 30 patients with primary VVs undergoing treatment with EVLA before and 1 week after treatment...
November 27, 2017: Photomedicine and Laser Surgery
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