نتایج جستجو برای: high intensity laser therapy

تعداد نتایج: 2858897  

Journal: :Medical physics 2017
P S Georgiou J Jaros H Payne C Allen T T Shah H U Ahmed E Gibson D Barratt B E Treeby

PURPOSE High intensity focused ultrasound (HIFU) provides a non-invasive salvage treatment option for patients with recurrence after external beam radiation therapy (EBRT). As part of EBRT the prostate is frequently implanted with permanent fiducial markers. To date, the impact of these markers on subsequent HIFU treatment is unknown. The objective of this work was to systematically investigate...

Journal: :journal of lasers in medical sciences 0
mohammad asnaashari endodontist, dds, ms, shahid beheshti university of medical sciences, dental school, endodontic department nikou asnaashari mastership of laser in dentistry, dds

the standards of endodontics have constantly been raised in the last 25 years by practitioners’ researches and their interest. most of the scientists believe the recent developments and the use of lasers as the most exciting achievement in endodontic treatment. nowadays, lasers are being used in endodontics to improve the prognosis of the root-filled teeth. the implement of suitable wavelengths...

Journal: :journal of dental research, dental clinics, dental prospects 0
siavash savadi oskoee parnian alizadeh oskoee elmira jafari navimipour amir ahmad ajami fatemeh pournaghi azar sahand rikhtegaran

background and aims. considering the importance of disinfecting dentin after cavity preparation and the possible effect of disinfection methods on induction of various reactions between the tooth structure and the adhesive restorative material, the aim of the present study was to evaluate microleakage of composite resin restorations after disinfecting the prepared dentin surface with nd:yag and...

 In this paper, the laser ablation process based on the irradiation of nanosecond pulsed lasers on a copper target surface in the presence of Helium gas is studied. The dynamical behaviors of the generated plasma in the helium gas and evaporated copper at the atmospheric pressure are examined using a laser pulse, laser wavelength of and intensity of 7×1010W/cm2. A one-dimensional thermal model ...

Journal: :journal of lasers in medical sciences 0
abdul ahad department of periodontics, dr. ziauddin ahmad dental college, aligarh muslim university, aligarh, india arundeep kaur lamba department of periodontics, maulana azad institute of dental sciences, bahadur shah zafar marg, new delhi, india farrukh faraz department of periodontics, maulana azad institute of dental sciences, bahadur shah zafar marg, new delhi, india shruti tandon department of periodontics, maulana azad institute of dental sciences, bahadur shah zafar marg, new delhi, india kirti chawla department of periodontics, maulana azad institute of dental sciences, bahadur shah zafar marg, new delhi, india neha yadav department of periodontics, maulana azad institute of dental sciences, bahadur shah zafar marg, new delhi, india

introduction: deep periodontal pockets pose a great challenge for nonsurgical periodontal treatment. scaling and root planing (srp) alone may not suffice in cases where surgical therapy cannot be undertaken. various recent studies have suggested the use of antimicrobial photodynamic therapy (apdt) for the management of periodontal infections. the aim of this study was to evaluate the effects of...

2013
Chung-Yin Lin William G. Pitt

This paper reviews the literature regarding the use of acoustic droplet vaporization (ADV) in clinical applications of imaging, embolic therapy, and therapeutic delivery. ADV is a physical process in which the pressure waves of ultrasound induce a phase transition that causes superheated liquid nanodroplets to form gas bubbles. The bubbles provide ultrasonic imaging contrast and other functions...

Sabori Negad , M.R,

SUMMARY laser operate on the principle that excited atoms can be stimulated to emit photons, Resulting in a Markedly amplified light that possesses the Unique properties of coherence, Monochromacy and high Intensity. The Nature of this light allows precise alteration of tissues, primarily by photocoagulation and disruption which has been Utilized in several forms of surgery.

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