UNLABELLED Cracking of tooth structure is a frequent mechanism of clinical failure necessitating treatment. Some laser conditions, particularly those without sufficient water cooling, may cause surface cracking of dentin. Surface cracks may serve as initiation sites for the onset of catastrophic fracture under mechanical stress, resulting in failure of the dentin. In this study, the hypothesis ...

A variety of revision treatments available for managing different types scars, including laser therapy, chemical peeling, cryotherapy, dermabrasion, soft tissue augmentation, intralesional steroid injection, and surgical excision. Rhytides, dyschromias, specific kinds scars are among the epidermal dermal lesions that successfully treated using erbium YAG lasers. In this study, use Erbium to tre...

The use of lasers has been suggested for orthodontists to fabricate or repair orthodontic appliances by welding metals directly in the mouth. This work aimed to evaluate the temperature changes in the pulp chamber during welding of an orthodontic wire to an orthodontic molar band using Nd : YAG laser in vitro. A freshly extracted human third molar with eliminated pulpal tissues was used. J-type...

Background and Aims: Restoration of non-carious cervical lesions (NCCLs) is challenging due to the difficulty of adhesion of dental tissues. The aim of this study was to investigate the effects of three methods of surface treatments using diamond bur, Er: YAG laser and sandblasting on the microtensile bond strength of resin composite to the noncarious dentin in cervical lesions. Materials and ...

Transscleral ruby cyclocoagulation has been successfully used to lower intraocular pressure. The recent commercial availability of Nd-YAG lasers with a thermal mode provides a possible alternative by which to perform this procedure. We treated one eye of seven pigmented rabbits using the thermal mode of the Nd-YAG laser. The intraocular pressures were followed up for three months. The treated e...

Dual-pulse laser-induced breakdown spectroscopy (LIBS) provides improved sensitivity compared to conventional single-pulse LIBS. We used a combination of Nd: yttrium aluminum garnet (YAG) and CO2 lasers to improve the sensitivity of LIBS. Significant emission intensity enhancement is noticed for both excited neutral lines and ionic lines for dual-pulse LIBS compared to single-pulse LIBS. Howeve...

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...

170 Gbit/s data transmission, microring lasers operating across the telecom C-band, and narrow-linewidth distributed-feedback lasers in Al2O3:Er waveguides on silicon, as well as amplifiers and continuous-wave lasers in Nd-doped polymer waveguides on silicon are presented. OCIS codes: (130.3130) Integrated Optics Materials; (140.4480) Optical Amplifiers; (140.5680) Rare Earth and Transition Met...