Advanced Root Canal Treatment with Laser and Microscope: Precision and Efficiency. скачать в хорошем качестве

Advanced Root Canal Treatment with Laser and Microscope: Precision and Efficiency.

‪@master_implant‬    / @master_implant   LASER ASSISTED ENDODONTICS TREATMENT using a double-wavelength (940 nm + 2780 nm) The success of endodontic therapy is found to be dependent on the ability to clean and disinfect the complex root canal system effectively. However, the intricate anatomy of the root canal system, the microorganisms’ invasion of dentinal tubules and the smear layer that is produced during instrumentation can be considered major obstacles for complete elimination of bacteria. The smear layer (SL) contains inorganic and organic substances, including microorganisms and remnants of necrotic debris. Clinical data regarding both NaOCl and CHX for root canal disinfection is still conflicting and current clinical evidences are still not able to support any individual irrigation strategy. Thus, the overall available evidence on this topic is scarce and often fails to report potentially patient-relevant out- comes or even reliable guidelines for treating apical periodontitis Lasers have long been presented as promising alternatives to conventional chemical irrigation procedures in endodontics, However, the biophysical properties of each wavelength are essential to determine their possible applications/ limitations and to understand how they can beneficially be used in combination. Generally, mid-infrared erbium lasers operating at wavelengths of 2780 or 2940 nm demonstrate a high absorption coefficient for both water/aqueous solutions and hydroxyapatite whereas in the near infrared range diode lasers (810, 940, and 980 nm) are mostly absorbed by haemoglobin and melanin. As each laser wavelength has a specific absorption coefficient for every tissue their role in endodontics should be focused in two main goals: (1) debris and SL removal and (2) bacterial eradication from the root canal system and within deep dentin layers. To achieve predictable disinfection levels, two wavelengths were used simultaneously. Both 2780- and 940-nm lasers have been shown to be powerful tools in cleaning and disinfecting root canals. According to each wavelength, it has been demonstrated that dentinal tubules may act as optic channels, redirecting and transmitting laser light deeply in multiple directions. This might be supported by the clearance consequent sealer penetration within secondary lateral canals together with the successful healing of the periapical structures in both clinical cases. As diode lasers under 1 W do not interfere with the dentin microstructure and that the Er,Cr:YSGG laser produces SL-free canals with open dentinal tubules, the use of resin-based sealers following laser-assisted endodontic procedures is advocated. The possibility of using two distinct lasers with two complementary effects (cavitation-induced debris and SL removal by the Er,Cr:YSGG laser and the superior dentin penetration/disinfection of the 940 nm diode) seems a very promising and logical combination. In addition, the possibility to deliver both wavelengths through the same radial firing tip guarantees the tri-dimensional coverage of the entire root canal system and allows directing both lasers into intricate root canal configurations. the aim was to demonstrate that laser-technology is in far expansion within the endodontic field and that with double-wavelength lasers, clinicians should expect to achieve highly predictable outcomes and less iatrogenic complications even in the most complicated endodontic scenarios such as in multi-rooted teeth with unfavourable anatomies, associated with AP. MUSIC LICENSE Adventures by A Himitsu   / a-himitsu   Creative Commons — Attribution 3.0 Unported— CC BY 3.0 Free Download / Stream: http://bit.ly/2Pj0MtT Music released by Argofox    • A Himitsu - Adventures [Royalty Free Music]   Music promoted by Audio Library    • Adventures – A Himitsu (No Copyright Music)