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45 Advantages of laser acupuncture
S16 45 Advantages of laser acupuncture O.E. Schegol. Center of Medical Rehabilitation, Bar-Haim, Rehovot, Israel Introduction: Laser acupuncture is a modern, painless, bloodless, comfortable procedure to achieve maximum of therapeutic effect and to avoid complications associated with damage to the integument. With the right choice of intensity, power, timing and areas of influence therapeutic effect reveals after 2–3 treatments. The laser beam has an important advantage when compared to ordinary source of light and heat – it is very well controlled and metered. Therefore, this method is more effective than the traditional one because of its subtlety and accuracy. Materials and Methods: To carry out the procedures we used a laser system with ten laser diodes, emitting infrared radiation of 780 nm with power density of 80 mW/cm2 and red laser radiation of 660 nm and 50 mW/cm2 power density. System allows to set individually exposure time for each of the 10 laser heads. In addition, for laser auricular acupuncture a red diode laser with the wavelength of 650 nm and the power density of 100 mW/cm2 was used. Results: The efficiency of treatments after addition of laser acupuncture has increased to 90–95%. This kind of combination is very positive for patients' treatment. Discussion: The advantages of laser acupuncture which uses a multichannel laser are: • Ability to work on 10 points simultaneously, which helps to reduce the time of the procedure significantly. In average the procedure takes adults from 10 to 15 minutes and children – about 5–10 minutes. • The technical simplicity of the procedure. For acupuncture it is important not only to find the exact point, but also to determine the depth and direction of the injection site correctly, choose the right length and thickness of the needle, method and time of exposure. • Comfort and painlessness. The radiators are firmly fixed on the point of influence, the patient experiences no pain. The procedure can be carried out when lying or sitting, and does not require patient' s immobility, which is important the patients are children. • The possibility of carrying out both laser acupuncture and laser therapy of wounds or painful areas with only one device. • The ease and effectiveness of procedures for children and adolescents, patients with increased skin sensitivity, and patients with trypanophobia. • Compact devices can be not only used for procedures carried out in the office, but also at patient' s home, which is vital for the rehabilitation of spinal and post-stroke patients, for the treatment of wound processes and bed sores.
Lasers in dentistry 46 The effect of an Er, Cr:YSGG laser on the microleakage and bond strength of silorane and micro-hybrid composite restorations to human permanent molar teeth O. Baygin 1 , F.M. Korkmaz 2 , T. Tuzuner 1 , B. Bagis 2 , I. Arslan 1 . 1 Karadeniz Technical University, Faculty of Dentistry, Department of Pediatric Dentistry; 2 Karadeniz Technical University, Faculty of Dentistry, Department of Prosthodontics Introduction: The aim of this in vitro study was to compare the microleakage and bond strength of Class V Silorane-based (Filtek-Silorane) and universal (Filtek-Z250) micro-hybrid composite restorations prepared either with a conventional diamond bur or with an Er, Cr: YSGG laser at different power levels. Material and Methods: One hundred sixty intact human molar teeth were used for microleakage assessment (n=80) and shear bond strength (SBS) test (n=80). The specimens were prepared
Abstracts of the Laser Helsinki 2012 International Congress using either a conventional diamond bur or 3W-, 4W- and 5W–20 Hz Er, Cr: YSGG laser irradiation. They were restored with either Filtek Silorane with its dedicated adhesive system (Silorane System Adhesive, 3M ESPE) or Filtek-Z250 with a total-etch adhesive (Adper Single Bond Plus, 3M ESPE). For microleakage assessment, the buccal surfaces of teeth were restored with a Silorane composite material, and the lingual surfaces were restored with a microhybrid composite. All specimens were subjected to thermocycling. Microleakage was assessed using a 0.5% basic-fuchsin solution, and specimens were sectioned longitudinally in the buccolingual direction. Dye penetration was scored using a stereo-microscope. The bond strengths were determined using a microtensile tester at a crosshead speed of 0.5 mm/min. The Kruskal Wallis test was used for the analysis of microleakage, and a one-way ANOVA test was used to analyze the SBS (p<0.05). Results: No statistically significant differences were found (p>0.05) between the Er, Cr:YSGG laser and bur preparation methods regarding the microleakage and bond strength values. Conclusion: Irradiation with the Er, Cr:YSGG laser was confirmed to be as effective as the conventional methods for preparing cavities before adhesive restorations.
47 LLLT four step treatment method for pain reduction in temporomandibular joint dysfunction M.E. Dincher, J.D. Carroll. Tufts University School of Dental Medicine, THOR Photomedicine Ltd, United Kingdom Background: Temporomandibular Joint Dysfunction (TMJD) are a common cause of orofacial pain, Low Level Light Therapy (LLLT) has been shown to be effective in treating a variety myofascial and joint pains. Objective: The purpose of this study was to conduct a randomized, patient blinded, placebo controlled clinical trial to determine the efficacy of LLLT as initial pain reduction therapy in TMJD patients Method: 29 Patients with TMJD pain present for longer than 6 months were randomized to receive either active or placebo laser and LED treatments. 44 points were treated in the region of the TMJ, and neck with three different treatment probes. The clinical intent was to reduce inflammation in the TMJ, deactivate myofascial trigger points around the TMJ and neck and induce a neural blockade (analgesia) by treating over nerves and improve lymphatic flow by treating lyphnodes. The probe and treatment specifications were: 810 nm 200 mW laser 30 seconds per point (5 W/cm2 , 6 Joules per point, 150 J/cm2 ), a laser cluster comprising 5 x 810 nm 200 mW laser (1 W aggregate, 5 W/cm2 each laser) for 30 seconds per point (6 Joules per point, 150 J/cm2 ) and a cluster of 69 LEDs comprising 34 x 660 nm 10 mw each and 35 x 850 nm 30 mW (1.39 W aggregate) 60 seconds per point, (50 mW/cm2 average power density, 1.2 J per point, 3 J/cm2 ). All subjects were treated 5 times within a 2–3 week period. Primary outcomes were measured by the change a visual analogue scale (VAS) for pain. Secondary outcomes measured include the short-form 36 for quality of life analysis. Measurements were taken at baseline and 1–2 weeks following treatment Results: The mean VAS score for active treatment improved by 36.93 from a mean of 59.46. The sham placebo therapy improved by 10.23 from a mean of 55.7 (p<.001). Significant improvements were seen also in the active group compared to the control in SF-36 physical scores (SF-36PCS) (p<.001) and SF-36 mental scores (SF-36 MCS) (p<.047). Conclusion: Conclusions indicate that LLLT was successful for significantly reducing short term pain (measured two weeks post treatment) when applying the parameters in this study to chronic TMD pain patients.
Lasers in dentistry 46 The effect of an Er, Cr:YSGG laser on the microleakage and bond strength of silorane and micro-hybrid composite restorations to human permanent molar teeth O. Baygin 1 , F.M. Korkmaz 2 , T. Tuzuner 1 , B. Bagis 2 , I. Arslan 1 . 1 Karadeniz Technical University, Faculty of Dentistry, Department of Pediatric Dentistry; 2 Karadeniz Technical University, Faculty of Dentistry, Department of Prosthodontics Introduction: The aim of this in vitro study was to compare the microleakage and bond strength of Class V Silorane-based (Filtek-Silorane) and universal (Filtek-Z250) micro-hybrid composite restorations prepared either with a conventional diamond bur or with an Er, Cr: YSGG laser at different power levels. Material and Methods: One hundred sixty intact human molar teeth were used for microleakage assessment (n=80) and shear bond strength (SBS) test (n=80). The specimens were prepared
Abstracts of the Laser Helsinki 2012 International Congress using either a conventional diamond bur or 3W-, 4W- and 5W–20 Hz Er, Cr: YSGG laser irradiation. They were restored with either Filtek Silorane with its dedicated adhesive system (Silorane System Adhesive, 3M ESPE) or Filtek-Z250 with a total-etch adhesive (Adper Single Bond Plus, 3M ESPE). For microleakage assessment, the buccal surfaces of teeth were restored with a Silorane composite material, and the lingual surfaces were restored with a microhybrid composite. All specimens were subjected to thermocycling. Microleakage was assessed using a 0.5% basic-fuchsin solution, and specimens were sectioned longitudinally in the buccolingual direction. Dye penetration was scored using a stereo-microscope. The bond strengths were determined using a microtensile tester at a crosshead speed of 0.5 mm/min. The Kruskal Wallis test was used for the analysis of microleakage, and a one-way ANOVA test was used to analyze the SBS (p<0.05). Results: No statistically significant differences were found (p>0.05) between the Er, Cr:YSGG laser and bur preparation methods regarding the microleakage and bond strength values. Conclusion: Irradiation with the Er, Cr:YSGG laser was confirmed to be as effective as the conventional methods for preparing cavities before adhesive restorations.
47 LLLT four step treatment method for pain reduction in temporomandibular joint dysfunction M.E. Dincher, J.D. Carroll. Tufts University School of Dental Medicine, THOR Photomedicine Ltd, United Kingdom Background: Temporomandibular Joint Dysfunction (TMJD) are a common cause of orofacial pain, Low Level Light Therapy (LLLT) has been shown to be effective in treating a variety myofascial and joint pains. Objective: The purpose of this study was to conduct a randomized, patient blinded, placebo controlled clinical trial to determine the efficacy of LLLT as initial pain reduction therapy in TMJD patients Method: 29 Patients with TMJD pain present for longer than 6 months were randomized to receive either active or placebo laser and LED treatments. 44 points were treated in the region of the TMJ, and neck with three different treatment probes. The clinical intent was to reduce inflammation in the TMJ, deactivate myofascial trigger points around the TMJ and neck and induce a neural blockade (analgesia) by treating over nerves and improve lymphatic flow by treating lyphnodes. The probe and treatment specifications were: 810 nm 200 mW laser 30 seconds per point (5 W/cm2 , 6 Joules per point, 150 J/cm2 ), a laser cluster comprising 5 x 810 nm 200 mW laser (1 W aggregate, 5 W/cm2 each laser) for 30 seconds per point (6 Joules per point, 150 J/cm2 ) and a cluster of 69 LEDs comprising 34 x 660 nm 10 mw each and 35 x 850 nm 30 mW (1.39 W aggregate) 60 seconds per point, (50 mW/cm2 average power density, 1.2 J per point, 3 J/cm2 ). All subjects were treated 5 times within a 2–3 week period. Primary outcomes were measured by the change a visual analogue scale (VAS) for pain. Secondary outcomes measured include the short-form 36 for quality of life analysis. Measurements were taken at baseline and 1–2 weeks following treatment Results: The mean VAS score for active treatment improved by 36.93 from a mean of 59.46. The sham placebo therapy improved by 10.23 from a mean of 55.7 (p<.001). Significant improvements were seen also in the active group compared to the control in SF-36 physical scores (SF-36PCS) (p<.001) and SF-36 mental scores (SF-36 MCS) (p<.047). Conclusion: Conclusions indicate that LLLT was successful for significantly reducing short term pain (measured two weeks post treatment) when applying the parameters in this study to chronic TMD pain patients.