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As conclusion, laser does accelerate tooth movement and could shorten the whole treatment duration.
The laser setup can work with excellent stability; in the long time of high power operation, no thermal distortions or damages are observed.
Since the laser does not involve any grating or epitaxial regrowth, and has a simple tuning algorithm, it allows simpler processes for fabrication and testing as compared with other widely tunable laser structures.
Despite the large number of variables the laser assisted technique has a high success rate, and work to minimise variables and optimise the laser parameters may improve these results.
The FREDDY laser presents an affordable and safe option for intracorporeal lithotripsy, but it does not fragment all stone compositions, and does not have soft tissue applications.
Open accessJournal Article
David L Chen, Joel L Cohen 
8 Citations
Overall, Nd:YAG laser does appear to be a safe and effective treatment for POVs that requires minimal post-treatment care.
It is concluded (both theoretically and experimentally) that this laser does not present instabilities, which is an interesting feature for short-pulse laser engineering.
Although this work does not reveal any novel technique for designing a completely reliable laser system of this type, it does enable a systematic prescription for minimizing the reproducibility problems to be drawn up.
Operation of the argon laser with continuous irradiation leads to good clinical results, is less tiring and easier for the laser surgeon, allows larger areas to be treated more quickly, and often produces less mottling and more uniform PWS lightening than does pulsed irradiation.
However, because the laser does not come into contact with the substrate, this method significantly minimises the potential for substrate damage.

Related Questions

How effective is intradiscal laser in treating back pain?4 answersIntradiscal laser therapy has shown effectiveness in treating back pain. Studies have demonstrated that invasive laser acupuncture (ILA) at 650 nm and 830 nm wavelengths can be used to treat chronic non-specific low back pain (CNLBP). Additionally, percutaneous laser disc decompression has been found to be effective in reducing low back pain, particularly in the low back pain group. Furthermore, a comparison between laser annuloplasty and radiofrequency annuloplasty showed that transforaminal laser annuloplasty (TFLA) may be superior in treating discogenic low back pain. Another study compared intradiscal laser irradiation with ozone injection and found that intradiscal ozone injection could be an effective method for treating discogenic back pain. Finally, a randomized controlled trial demonstrated that low-level laser therapy, in combination with NSAIDs, was effective in reducing pain and improving functional status in patients with low back pain.
What is the effect of laser-based micro-grooving techniques on implant longevity?5 answersLaser-based micro-grooving techniques have shown positive effects on implant longevity. In a study by Ahamed et al., laser-microgrooved implants with laser-microgrooved prosthetic abutments demonstrated superior clinical and radiographic results compared to loading with machined abutments. Moura et al. proposed the use of 3D printing to create communication channels or micro-antennas on implant surfaces, which may improve long-term performance. Veiko et al. conducted an in vivo study and found that laser-induced topographies on titanium screw-shaped implants, such as the presence of "µ-rooms," resulted in better secondary stability and osseointegration. Carrigy et al. conducted a systematic review and found that laser microtextured collar implants reduced marginal bone loss and peri-implant probing depth compared to machined collar implants, potentially improving implant success and reducing disease incidence. Overall, laser-based micro-grooving techniques have shown promise in enhancing implant longevity and performance.
Which is the effectiveness and safety of co2 laser factional in acne scaring?5 answersFractional CO2 laser treatment has been found to be effective in the treatment of acne scars, with good patient satisfaction and reduced side effect profile. It provides a fine balance between the undesirable side effects of ablative lasers and the limited efficacy of nonablative lasers. The treatment has shown positive results, with patients reporting excellent improvement, good response, and fair response in the reduction of acne scars. The treatment stimulates collagen and fibroblasts in the dermis, resulting in remodeling and shrinking of the skin. It has been found to be safe and well-tolerated, with no lasting side effects. Fractional CO2 laser can be used as a monotherapy for mild-to-moderate post-acne scars and as a combined procedure for severe acne scars along with other therapeutic modalities. Overall, fractional CO2 laser therapy has shown effectiveness and safety in the treatment of acne scars.
How the laser works?5 answersLaser works by using a laser device to emit laser beams for various applications such as laser processing and laser therapy. The laser device consists of components such as a working substance, a resonant cavity, a gas excitation source, and an external trigger electrode. The working substance generates light through population inversion, which is then reflected repeatedly by the resonant cavity to provide energy feedback. The gas excitation source provides an energy source for population inversion and is ionized by an external trigger voltage, enabling arc discharge and preventing repeated high voltage loading. In laser processing, the laser device is controlled by a control system to emit laser beams for processing workpieces, with position information acquired by a visual system and fed back to the control system. Laser processing can also be achieved by synchronously applying laser pulses to specific positions during the continuous movement of a workpiece, avoiding heat accumulation and overcutting. Laser systems can achieve continuous frequency-selecting function by controlling the change of wavelength through resonant cavities and resonant cavity controllers.
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