introduction: the use of lasers for treatment has become a common phenomenon in the medical field. currently, numerous laser systems are available for dental use. the use of lasers for periodontal treatment becomes more complicated because the periodontium consists of both hard and soft tissues. methods: related articles were gathered and selected carefully and reviewed. among the many lasers a...

PURPOSE To analyze potential surface alterations in endosseous dental implants induced by irradiation with common dental lasers. MATERIALS AND METHODS Sandblasted and acid-etched, plasma-sprayed, hydroxyapatite-coated, and smooth titanium discs were irradiated using Nd:YAG, Ho:YAG, Er:YAG, CO2, and GaAIAs lasers at various power settings. The specimens were examined by scanning electron micro...

We have developed a new senior-level undergraduate laboratory course at the US Air Force Academy. The students perform six experiments that include; optical modulators, waveguiding, laser kinetics, CO2 lasers, harmonic generation and the measurement of ultrashort laser pulses. These experiments were chosen so that there is an integrated theme of lasers and optics, to teach experimental methods ...

IMPORTANCE Although cutaneous warts are common lesions, full remission is not always achieved with conventional therapies. Laser modalities including carbon dioxide (CO2), erbium:yttrium-aluminum-garnet (Er:YAG), pulsed dye (PDL), and Nd:YAG have been investigated as alternative treatments for warts. OBJECTIVE To review the use and efficacy of lasers for treating nongenital cutaneous warts. ...

In this chapter we would like to highlight and analyze the main problems of transmission and propagation of CO2 laser radiation in the hollow core microstructured fibers (HC MFs). It is well known that there is a strong need for the fiber delivery systems for 10.6 μm CO2 lasers due to a wide range of CO2 laser applications in medicine, spectrometry, industry, military applications and in other ...

of aluminum oxide, that emitted a deep red-colored beam. After this invention, dental researchers started investigating the various potentials of lasers. In 1965, Stern and Sognnaes reported that a ruby laser could vaporize enamel and had thermal effects on the dental pulp. In 1970’s, researchers began to find the clinical oral soft tissue uses of medical CO2 and neodymiumdoped:yttrium aluminum...

OBJECTIVES The aim of this study was to compare the effectiveness of the Er,Cr:YSGG (Waterlase) laser with KTP and CO2 lasers in laser assisted uvulopalatoplasty (LAUP) for treatment of snoring. STUDY DESIGN This is a prospective study of 63 patients who were treated for snoring by LAUP either with Er,Cr:YSGG (n = 21) or with KTP (n = 21) or CO2 lasers (n = 21). Histologic analysis was perfor...

in an axisymmetric co2-n2-h2o gas dynamic laser, let ? denote the intersection of the vertical plane of symmetry with the upper part of the (supersonic) nozzle. to obtain a maximal small signal gain, some authors have tested several families of curves for ?. to find the most general solution for ?, an application of pontryagin’s principle led to the conjuncture that the optimal ? must consist o...

a hypertrophic scar is defined as an excess healing response that is a dilemma for physicians. several therapies are available: intralesional corticosteroids, topical treatments, cryotherapy, surgery, radiation, silicone gel dressing and laser therapy.pulsed-dye, nd-yag and co2 lasers have been used for treatment of keloids and hypertrophic scars but recurrence is common. recently low-level las...

A survey of broadband Co2+and Cr2+-based lasers is presented. These mid-IR sources, operating in the very interesting “molecular fingerprint” region between ∼1.6 and 3.5μm offer the broadest bandwidth from all solid-state vibronic lasers. The emphasize is made on Cr2+-doped lasers, which have not only the widest and the highest gain, but also operate at room-temperature and produce the shortest...