Photomedicine and laser surgery最新文献

{"title":"Effect of 830 nm Diode Laser Irradiation of Root Canal on Bond Strength of Metal and Fiber Post.","authors":"Claudia Strefezza,&nbsp;Marcello Magri Amaral,&nbsp;José Quinto,&nbsp;Sheila Cynthia Gouw-Soares,&nbsp;Claudia Bianchi Zamataro,&nbsp;Denise Maria Zezell","doi":"10.1089/pho.2017.4378","DOIUrl":"https://doi.org/10.1089/pho.2017.4378","url":null,"abstract":"<p><strong>Objective and background: </strong>The correct selections of the cementing agent, the endodontic post material and placement protocol are critical to provide an increased longevity of the teeth that went through endodontic treatment. The irradiation with diode laser before post cementation, can promote an antimicrobial effect. However, there is a lack of information about the effect of 830 nm diode laser on the post bond strength. This study analyzed the effect of dentin root canal irradiation with high-intensity diode laser, at 830 nm, operating in continuous or pulsed mode, on the retention of metal or fiber posts, cemented with self-etching resinous composite (Panavia F) and zinc phosphate cement (ZnPO₄).</p><p><strong>Materials and methods: </strong>Human roots were irradiated with diode laser (continuous and pulsed mode). The fiber posts were luted with Panavia F and the metal posts with Panavia F or ZnPO₄ cement. Specimens were sectioned into three sections (cervical, middle, and apical). The bond strength was measured by a push-out mechanical analysis. For the statistical analysis, a three-way ANOVA test was applied following a Tukey's pairwise comparison with a significance level of p = 0.05.</p><p><strong>Results: </strong>The irradiated groups presented higher bond strength compared with nonirradiated group (p < 0.05), and the cervical and middle thirds presented higher on bond strength than the apical. The association of metal post and Panavia F presented higher bond strength when irradiated on continuous mode (p < 0.05). Fiber post and Panavia F presented higher bond strength associated to pulsed mode. The mode seems not to make a significant difference.</p><p><strong>Conclusions: </strong>These results corroborate the importance of the post bond to dentin and root canal debris removal to increase the tooth longevity. It was shown that the dentin to post bond strength were enhanced by the diode laser irradiation either on continuous or pulsed modes.</p>","PeriodicalId":20117,"journal":{"name":"Photomedicine and laser surgery","volume":"36 8","pages":"439-444"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1089/pho.2017.4378","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36103983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimal Laser Phototherapy Parameters for Pain Relief.","authors":"Rohit J Kate,&nbsp;Sarah Rubatt,&nbsp;Chukuka S Enwemeka,&nbsp;Wendy E Huddleston","doi":"10.1089/pho.2017.4399","DOIUrl":"https://doi.org/10.1089/pho.2017.4399","url":null,"abstract":"<p><strong>Background and objective: </strong>Studies on laser phototherapy for pain relief have used parameters that vary widely and have reported varying outcomes. The purpose of this study was to determine the optimal parameter ranges of laser phototherapy for pain relief by analyzing data aggregated from existing primary literature.</p><p><strong>Materials and methods: </strong>Original studies were gathered from available sources and were screened to meet the pre-established inclusion criteria. The included articles were then subjected to meta-analysis using Cohen's d statistic for determining treatment effect size. From these studies, ranges of the reported parameters that always resulted into large effect sizes were determined. These optimal ranges were evaluated for their accuracy using leave-one-article-out cross-validation procedure.</p><p><strong>Results: </strong>A total of 96 articles met the inclusion criteria for meta-analysis and yielded 232 effect sizes. The average effect size was highly significant: d = +1.36 [confidence interval (95% CI) = 1.04-1.68]. Among all the parameters, total energy was found to have the greatest effect on pain relief and had the most prominent optimal ranges of 120-162 and 15.36-20.16 J, which always resulted in large effect sizes. The cross-validation accuracy of the optimal ranges for total energy was 68.57% (95% CI = 53.19-83.97). Fewer and less-prominent optimal ranges were obtained for the energy density and duration parameters. None of the remaining parameters was found to be independently related to pain relief outcomes.</p><p><strong>Conclusions: </strong>The findings of meta-analysis indicate that laser phototherapy is highly effective for pain relief. Based on the analysis of parameters, total energy can be optimized to yield the largest effect on pain relief.</p>","PeriodicalId":20117,"journal":{"name":"Photomedicine and laser surgery","volume":"36 7","pages":"354-362"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1089/pho.2017.4399","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35952421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of GreenLight Laser Photoselective Vaporization and Thulium Laser Enucleation for Nonmuscle Invasive Bladder Cancer.","authors":"Meihua Lu,&nbsp;Xiaolong Liu","doi":"10.1089/pho.2018.4440","DOIUrl":"https://doi.org/10.1089/pho.2018.4440","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the safety and efficacy of GreenLight laser vaporization and thulium laser enucleation for nonmuscle invasive bladder cancer (NMIBC).</p><p><strong>Patients and methods: </strong>A total of 150 patients of NMIBC who underwent either GreenLight laser vaporization (Group A, n = 78) or thulium laser enucleation (Group B, n = 72) were analyzed, respectively. The preoperative, intraoperative, and postoperative clinical data were recorded and compared in the two groups.</p><p><strong>Results: </strong>All patients were successfully treated with GreenLight laser vaporization or thulium laser enucleation. No significant difference was observed in operation time, catheterization time, and postoperative hospital stay time between them. No complications such as obturator nerve reflex, bladder perforation, overhydration, or intraoperative or postoperative bleeding occurred in all patients. The patients were followed up for 12 months; during the period the recurrence rate was 10.26% (8/78) and 9.72% (7/72), respectively, between Groups A and B.</p><p><strong>Conclusions: </strong>Both GreenLight laser vaporization and thulium laser enucleation are effective and safe treatments for patients with NMIBC. Long-term clinical trials are necessary to increase the current scientific evidence base.</p>","PeriodicalId":20117,"journal":{"name":"Photomedicine and laser surgery","volume":"36 7","pages":"383-385"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1089/pho.2018.4440","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36064664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Pulsed High-Intensity Laser Therapy on Pain, Adhesions, and Quality of Life in Women Having Endometriosis: A Randomized Controlled Trial.","authors":"Ali Abd El-Monsif Thabet,&nbsp;Mansour Abdullah Alshehri","doi":"10.1089/pho.2017.4419","DOIUrl":"https://doi.org/10.1089/pho.2017.4419","url":null,"abstract":"<p><strong>Objective: </strong>The purpose of this study was to assess the effectiveness of pulsed high-intensity laser therapy on pain, adhesions, and quality of life in women with endometriosis.</p><p><strong>Background data: </strong>Endometriosis is among the most common gynecological problems affecting females of childbearing age. The majority of women with endometriosis seek treatment to alleviate pain.</p><p><strong>Materials and methods: </strong>The sample included 40 women with endometriosis to either a mild or a moderate degree aged between 24 and 32 years. They were randomly assigned to two groups, group I of 20 women received pulsed high-intensity laser therapy three times per week for 8 weeks, as well as the usual regimen of hormonal treatment given to endometriosis patients, and group II of 20 women were given sham laser treatment three times per week for 8 weeks and the usual regimen of hormonal treatment. For all patients, pain, the degree of endometriosis, and quality of life were measured using present pain intensity and pain relief scales, laparoscopy, and the Endometriosis Health Profile (EHP-5) before treatment began and at the end of the 8 weeks.</p><p><strong>Results: </strong>In comparison to the sham laser treatment, pulsed high-intensity laser therapy produced a significantly different result (p < 0.0001), in women with endometriosis.</p><p><strong>Conclusions: </strong>Pulsed high-intensity laser therapy is an effective method of pain alleviation, reducing adhesions, and improving the quality of life in women with endometriosis.</p>","PeriodicalId":20117,"journal":{"name":"Photomedicine and laser surgery","volume":" ","pages":"363-369"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1089/pho.2017.4419","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39984851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photobiomodulation in the Postoperative of Bichectomy Surgeries: Case Series.","authors":"Christian Giancarlo Bernal Rodriguez,&nbsp;Luciane Franco Kraul,&nbsp;Thales Wilson Cardoso,&nbsp;Carlos de Paula Eduardo,&nbsp;Ana Cecília Corrêa Aranha,&nbsp;Patrícia Moreira de Freitas","doi":"10.1089/pho.2017.4407","DOIUrl":"https://doi.org/10.1089/pho.2017.4407","url":null,"abstract":"<p><strong>Background: </strong>Several photobiomodulation (PBM) protocols with low-power lasers have been reported for pain control and tissue repair in the postoperative period of oral surgeries. However, there are still no reports of a protocol for bichectomy surgeries' postoperative period.</p><p><strong>Objective: </strong>This article presents six reports of clinical cases in which bichectomy surgery was performed.</p><p><strong>Methods: </strong>In the postoperative period, three patients were submitted to PBM with low-power lasers, while three patients did not receive it. Facial edema was evaluated using a millimeter tape. Pain was determined using the visual analog scale.</p><p><strong>Results: </strong>Data of each clinical case were evaluated in a descriptive way and compared.</p><p><strong>Conclusions: </strong>The efficacy of the PBM protocol on the postoperative period of bichectomy surgeries was evidenced by the decrease of edema and pain.</p>","PeriodicalId":20117,"journal":{"name":"Photomedicine and laser surgery","volume":"36 7","pages":"391-394"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1089/pho.2017.4407","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36234516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Initiators on Thermal Changes in Soft Tissues Using a Diode Laser.","authors":"Georgios E Romanos,&nbsp;Danielle Sacks,&nbsp;Nicholas Montanaro,&nbsp;Rafael Delgado-Ruiz,&nbsp;Jose Luis Calvo-Guirado,&nbsp;Fawad Javed","doi":"10.1089/pho.2017.4428","DOIUrl":"https://doi.org/10.1089/pho.2017.4428","url":null,"abstract":"<p><strong>Objective: </strong>The aim was to determine the effect of various initiators on the thermal changes that occur during incisions performed in soft tissues using a diode laser.</p><p><strong>Background data: </strong>There are no studies that have assessed the effect of various initiators on the thermal changes that occur during incisions performed in soft tissues using a diode laser.</p><p><strong>Materials and methods: </strong>Thermal changes were observed during standardized incisions in chicken breast (without skin) via thermoelements over a 10-sec irradiation period. Incisions were created using a 975 nm diode laser with a 320 μ fiber tip diameter. Incisions (10 in each group) were performed with and without an initiator (control group). Red/blue articulating paper, cork, and SureStep^® were used as initiators. The tissue was irradiated in a continuous wave mode at 3 and 6 W in room temperature (21°C).</p><p><strong>Results: </strong>At 3 and 6 W without any initiator, the mean temperature increased by 5.7°C versus 12.4°C, respectively. Cork initiator at 3 and 6 W resulted in temperature increase by 4.88°C versus 6.21°C, respectively. Incisions made using the blue/red articulating paper-initiated tip resulted in temperature increase by 2.9/5.8°C versus 8.2/7.6°C at 3 and 6 W power settings, respectively. Initiation with SureStep resulted in temperature increase by 2.3°C and at 6 W by 4.1°C. No significant differences were recorded between the different groups, but higher temperatures were associated with higher power settings.</p><p><strong>Conclusions: </strong>The power settings of the diode laser and type of initiator used, both effect the degree to which the temperature of the soft tissue increases during incisions and have to be considered for the safety in soft tissue applications.</p>","PeriodicalId":20117,"journal":{"name":"Photomedicine and laser surgery","volume":"36 7","pages":"386-390"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1089/pho.2017.4428","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36224694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy of High-Intensity Laser Therapy in Treating Knee Osteoarthritis: A First Systematic Review.","authors":"Justyna Wyszyńska,&nbsp;Monika Bal-Bocheńska","doi":"10.1089/pho.2017.4425","DOIUrl":"https://doi.org/10.1089/pho.2017.4425","url":null,"abstract":"<p><strong>Objective: </strong>The aim of this study was to evaluate the efficacy of high-intensity laser therapy (HILT) in the treatment of knee osteoarthritis (OA).</p><p><strong>Background: </strong>Due to increased number of randomized controlled trials evaluating efficiency of HILT in patients with knee OA, there was a need to present them in the form of systematic review.</p><p><strong>Methods: </strong>The search includes the databases as well as a manual search until August, 2017. The quality of the selected articles was determined in accordance with the revised guidelines of the CONSORT statement.</p><p><strong>Results: </strong>Six studies were included. Laser fluence ranged from 0.51 to 120 J/cm² for one treatment. The total energy transmitted during one treatment ranged from 1250 to 3000 J. All the selected studies found HILT to be beneficial in treatment of knee OA.</p><p><strong>Conclusions: </strong>HILT seems to be efficient in reducing pain and for providing functional improvements in patients with knee OA.</p>","PeriodicalId":20117,"journal":{"name":"Photomedicine and laser surgery","volume":"36 7","pages":"343-353"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1089/pho.2017.4425","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36037790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Fourth Industrial Revolution and Photobiomodulation.","authors":"Heidi Abrahamse","doi":"10.1089/pho.2018.4485","DOIUrl":"https://doi.org/10.1089/pho.2018.4485","url":null,"abstract":"","PeriodicalId":20117,"journal":{"name":"Photomedicine and laser surgery","volume":"36 7","pages":"341-342"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1089/pho.2018.4485","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36217885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phototherapy with LED Shows Promising Results in Healing Chronic Wounds in Diabetes Mellitus Patients: A Prospective Randomized Double-Blind Study.","authors":"Igor Frangež,&nbsp;Tea Nizič-Kos,&nbsp;Helena Ban Frangež","doi":"10.1089/pho.2017.4382","DOIUrl":"https://doi.org/10.1089/pho.2017.4382","url":null,"abstract":"<p><strong>Objective: </strong>The study examined the influence of phototherapy with light-emitting diodes (LEDs) on chronic diabetic wound healing.</p><p><strong>Background: </strong>Chronic diabetic wounds are very difficult to treat due to underlying conditions such as angiopathy and neuropathy, resulting in slow healing rates. Conventional treatment options are often insufficient and do not provide satisfactory outcomes. Phototherapy with LED enhances the healing processes through mechanisms of energy exchange between incoming photons and their target, the main one being cytochrome-c oxidase in mitochondria.</p><p><strong>Methods: </strong>A double-blind, randomized study included 60 patients with a chronic diabetic wound treated at the University Medical Center Ljubljana between October 1, 2012 and December 1, 2014. Patients were randomized into either an active group (LED group) or a control group (Co-group). The active group was treated with LED 2.4 J/cm² (wavelengths 625, 660, 850 nm) three times a week for 8 weeks. The Co-group was treated with light that simulated LED. Healing was evaluated using the Falanga wound bed score and wound surface area.</p><p><strong>Results: </strong>The average baseline wound surface before treatment was 1315 mm² in the LED group and 1584 mm² in the Co-group (p = 0.80). After 8 weeks, the mean surface in the LED group was 56% of the baseline surface and 65% in the Co-group (p > 0.05). Falanga score evaluation showed significantly faster wound bed healing in the LED group compared with the Co-group (p < 0.05).</p><p><strong>Conclusions: </strong>According to our results, LED significantly improves healing of chronic diabetic wounds and prepares the wound bed for further coverage options.</p>","PeriodicalId":20117,"journal":{"name":"Photomedicine and laser surgery","volume":" ","pages":"377-382"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1089/pho.2017.4382","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39965542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Phototherapy on Masseter and Anterior Temporal Muscles Before Induction of Fatigue: A Randomized, Sham-Controlled, Blind Clinical Trial.","authors":"Camila Haddad Leal de Godoy,&nbsp;Lara Jansiski Motta,&nbsp;Washington Steagall Júnior,&nbsp;Marcela Leticia Leal Gonçalves,&nbsp;Daniela Fátima Teixeira da Silva,&nbsp;Raquel Agnelli Mesquita-Ferrari,&nbsp;Aldo Brugnera Júnior,&nbsp;Sandra Kalil Bussadori","doi":"10.1089/pho.2017.4396","DOIUrl":"https://doi.org/10.1089/pho.2017.4396","url":null,"abstract":"<p><strong>Objective: </strong>This is a randomized, sham-controlled, blind clinical trial that aimed to evaluate the effect of phototherapy on bite force, mandibular range of motion, sensitivity to palpation, and fatigue in the masseter and anterior temporal muscles of young patients when administered before the induction of fatigue.</p><p><strong>Materials and methods: </strong>Fifty-two healthy volunteers aged 18-23 years were randomly allocated to a laser group and sham group. Both groups were submitted to a clinical evaluation to record mandibular range of motion, bite force, muscle sensitivity to palpation, and muscle fatigue. The laser group was then submitted to phototherapy (780 nm, 25 J/cm², 50 mW, 20 sec, and 1 J per point) on three points of the masseter and one point of the anterior temporal muscle on each side. The sham group was submitted to the same procedure, but with the device switched off. The volunteers were then instructed to chew two pieces of gum (one on each side) for 6 min, with the pace set by a metronome calibrated to 80 bpm, followed by the reevaluation of all variables. The results were submitted to t-test and Wilcoxon test. A significance level of 5% (p < 0.05) was considered in all analyses.</p><p><strong>Results: </strong>No statistically significant intergroup or intragroup differences were found for the variables analyzed.</p><p><strong>Conclusions: </strong>With the proposed protocol, phototherapy administered before the induction of fatigue did not lead to any changes in bite force and mandibular range of motion, indicating that further studies are needed with different phototherapy dosimetric parameters.</p>","PeriodicalId":20117,"journal":{"name":"Photomedicine and laser surgery","volume":"36 7","pages":"370-376"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1089/pho.2017.4396","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36103976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}