نتایج جستجو برای: laser in dentistry
تعداد نتایج: 17039266 فیلتر نتایج به سال:
BACKGROUND Dentistry in general and prosthodontics in particular is evolving at greater pace, but the denture base resins poly methyl methacrylate. There has been vast development in modifying chemically and the polymerization techniques for better manipulation and enhancement of mechanical properties. One such invention was introduction of visible light cure (VLC) denture base resin. Argon ion...
Background and Aim: Nowadays, lasers are the focus of attention as a new treatment in dentistry. One applications is their use implant The present study aimed to compare effect YAG: Er 089 nm Diode laser irradiation on attachment osteoblast cells surface dental felxtures. Materials Methods: In study, 36 titanium implants were divided into three groups 12. Twelve irradiated with Er: YAG 12 diode...
Three-dimensional scanning of the mouth is required in a large number of procedures in dentistry such as restorative dentistry and orthodontics [1,2]. The 1980s saw the introduction of the first digital intraoral scanner for dentistry by a Swiss dentist, Dr. Werner Mörmann, and an Italian electrical engineer, Marco Brandestini. Nowadays, ten intra-oral scanning devices for restorative dentistry...
هدف: این مطالعه به منظور بررسی و مقایسه اثر q-switched nd yag laser و erbium laser در درمان ضایعات پیگمانته انجام شده است. روش مطالعه: 116 فرد مبتلا به ضایعات پیگمانته از نوع فرکل و خال وارد مطالعه شدند که 58 مورد با استفاده از q-switched nd yag laser و 58 مورد با لیزر erbium درمان شدند و در نهایت میزان اثربخشی (از بین رفتن کامل ضایعات) در دو گروه تعیین و مقایسه گردید. یافته ها: در این مطالعه...
Hollow-core photonic-crystal fibres (PCFs) for the delivery of high-fluence laser radiation capable of ablating tooth enamel are developed. Sequences of picosecond pulses of 1.06 microm Nd:YAG-laser radiation with a total energy of about 2 mJ are transmitted through a hollow-core photonic-crystal fibre with a core diameter of approximately 14 microm and are focused on a tooth surface in vitro t...
the purpose of these case reports is to analyze the results of gingivectomy and gingival troughing to determine the evidence on the effectiveness of laser-assisted soft tissue procedures and soft tissue management in aesthetic dentistry.the patients in these case reports underwent 980 nm diode laser assisted gingivectomy and gingival troughing to achieve immediate hemostasis and moisture contro...
The placement of individual identification on a prosthesis is very important for forensic dentistry and traceability. This article describes the unique naming/labeling of dentures with information for individual identification using a method in which information is invisible under natural light but visible under ultraviolet light-emitting diode/black light exposure. The use of laser beam machin...
The aim of the investigation is to reveal scientific, clinical, pedagogical and social activity eminent maxillofacial surgeon Doctor medical sciences, professor, major-general service N.M. Alexandrov his merits in sphere military dentistry.
 Material methods. On basis analysis national literature, as well life professional scientific labors general, present role dentistry development surge...
introduction: pyogenic granuloma (pg) is a prevalent inflammatory hyperplasia of skin and oral mucosa which is often caused by constant low-grade local irritation, traumatic injury or hormonal factors. in many cases, gingival irritation and inflammation due to poor oral hygiene are precipitating factors. oral pg occurs predominantly on the gingiva, but it is also encountered on the lips, tongue...
PDT is a procedure using light (often low-power laser light or LED) absorption by the external chemical agents (or photosensitizers) causing photo-chemical reactions in the treated tissues. Many photosensitizers have been developed to match the absorption peaks of light wavelengths ranging from ultraviolet (300-390 nm), visible (400-700 nm) to near-IR (700-950 nm) for applications such as in de...
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