Temperature changes and thermo-light polymerization efficacy of two LED curing lights and 445-nm diode laser on glass carbomer material

2021 ◽  
Author(s):  
Yesim Sesen Uslu ◽  
Neslihan Ozveren ◽  
Nazmiye Donmez ◽  
Hasmet Ulukapı
Keyword(s):  
Diode Laser ◽  
Temperature Changes

scholarly journals COMPARATIVE STUDY OF THE THERMAL EFFECT OF TWO KINDS OF OPTIC FIBRES OF HIGH INTENSIVE 810 NM DIODE LASER (IN VITRO STUDY)

2021 ◽  
Vol 27 (1) ◽  
pp. 3523-3528
Author(s):  
Raya Grozdanova-Uzunova ◽  
◽  
Elka Radeva ◽  
Dimitar Kosturkov ◽  
Evgeniya Popova ◽  
...  
Keyword(s):  
Diode Laser ◽  
Optical Fibers ◽  
Light Guide ◽  
In Vitro Study ◽  
Root Surface ◽  
Quartz Fiber ◽  
Temperature Changes ◽  
Root Canals ◽  
Organically Modified

Purpose: The aim of our in vitro study is to investigate the thermal changes on the outer root surface that occur after irradiation with a high intensive diode laser with two types of optical fibers. Material and Methods: The root canals of 24 extracted single-rooted and multi-rooted teeth (59 root canals) were prepared with Pro Taper Gold to F3 and treated with 810 nm diode laser for 8 s with circular movements from apex to orifices. Teeth are divided into two groups. A quartz light guide is used in the first group, and in the second group, the root canals are treated with an organically modified quartz light guide. The temperature changes were detected with FLIR - Т 330 Infrared Thermal Camera and the data was processed with FLIR Reporter 9 Professional software. Results: In 90% of cases, the temperature rise on the outer root surface is up to 8°C. In the first group with quartz fiber, the minimum increase in temperature is 2°C, the maximum is 11°C (in the cases with four root canals). When using the organically modified quartz fiber, the registered minimum increase in temperature is 1.2°C and maximum increase of 9.2°C (in cases with curved canals). Conclusion: Temperature changes on the outer root surface using an 810 nm diode laser are biocompatible. There is no statistically significant difference between the temperatures measured in the two types of optical fibers used - quartz and organically modified quartz light.

Temperature changes on the root surfaces of mandibular incisors after an 810-nm high-intensity intracanal diode laser irradiation

2012 ◽  
Vol 17 (1) ◽  
pp. 015006 ◽  
Author(s):  
Andrea da Fonseca Alvarez ◽  
Cacio Moura-Netto ◽  
Alexandre Daliberto Frugoli ◽  
Casemiro Fernando ◽  
Ana Cecilia Correa Aranha ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Diode Laser ◽  
High Intensity ◽  
Temperature Changes ◽  
Root Surfaces ◽  
Mandibular Incisors

scholarly journals Streptococcus Mutans Biofilm Inhibition Effect of Indocyanine Green and Near Infrared Diode Laser

2020 ◽  
Vol 47 (4) ◽  
pp. 446-453
Author(s):  
Yeowon Kim ◽  
Howon Park ◽  
Juhyun Lee ◽  
Hyunwoo Seo ◽  
Siyoung Lee
Keyword(s):  
Indocyanine Green ◽  
Diode Laser ◽  
Streptococcus Mutans ◽  
Near Infrared ◽  
Diode Lasers ◽  
Control Group ◽  
Distilled Water ◽  
Biofilm Inhibition ◽  
Temperature Changes ◽  
Inhibition Effect

The purpose of this study was to evaluate the effect of Indocyanine Green (ICG) and near-infrared (NIR) diode laser on <i>Streptococcus mutans</i> biofilms depending on ICG concentrations.<br/><i>S. mutans</i> biofilms were formed on a Hydroxyapatite disk, and 0.5, 1.0, 2.0, 3.0, 4.0, 5.0 mg/mL ICG solutions dissolved in sterile distilled water and a NIR diode laser having a power of 300 mW and a wavelength of 808 nm were applied to the biofilms. The temperature changes of the biofilm surface according to the concentrations of the ICG solution were measured using a 1-channel thermocouple thermometer.<br/>Compared to the control group, in the groups with only the 3.0, 4.0, 5.0 mg/mL ICG solution application, and in the groups with the 1.0, 2.0, 3.0, 4.0, 5.0 mg/mL ICG solution application and light irradiation, a statistically significant decrease in the bacterial counts were observed.<br/>The temperature increase according to the concentration of the ICG solutions was 9.53℃, 10.43℃, 11.40℃, 12.10℃, 12.67℃, and 13.63℃ in ICG solutions of 0.5, 1.0, 2.0, 3.0, 4.0, and 5.0 mg/mL respectively.This study presents the potential for clinical application of ICG and NIR diode lasers as a new method for preventing dental caries.

Temperature Changes Accompanying Near Infrared Diode Laser Endodontic Treatment of Wet Canals

2010 ◽  
Vol 36 (5) ◽  
pp. 908-911 ◽  
Author(s):  
Raghad Hmud ◽  
William A. Kahler ◽  
Laurence J. Walsh
Keyword(s):  
Diode Laser ◽  
Near Infrared ◽  
Endodontic Treatment ◽  
Temperature Changes

Diode Laser Light Scattering and Temperature Changes Due to Anesthesia Injection in Bovine Tongue Mucosa

2021 ◽  
Vol 39 (9) ◽  
pp. 587-592
Author(s):  
Georgios E. Romanos ◽  
Rocco W. Tedesco ◽  
Upasna Malhotra ◽  
Houlin Hong ◽  
Wei Hou ◽  
...  
Keyword(s):  
Light Scattering ◽  
Diode Laser ◽  
Laser Light ◽  
Laser Light Scattering ◽  
Temperature Changes

Cryo-TEM of amphiphilic polymer and amphiphile/polymer solutions

1993 ◽  
Vol 51 ◽  
pp. 876-877
Author(s):  
Yeshayahu Talmon
Keyword(s):  
Microstructural Characterization ◽  
Building Blocks ◽  
Quantitative Information ◽  
Physical Models ◽  
Specimen Preparation ◽  
Time Resolved ◽  
Temperature Changes ◽  
Temperature And Humidity ◽  
Microstructured Fluids ◽  
Air Streams

To achieve complete microstructural characterization of self-aggregating systems, one needs direct images in addition to quantitative information from non-imaging, e.g., scattering or Theological measurements, techniques. Cryo-TEM enables us to image fluid microstructures at better than one nanometer resolution, with minimal specimen preparation artifacts. Direct images are used to determine the “building blocks” of the fluid microstructure; these are used to build reliable physical models with which quantitative information from techniques such as small-angle x-ray or neutron scattering can be analyzed.To prepare vitrified specimens of microstructured fluids, we have developed the Controlled Environment Vitrification System (CEVS), that enables us to prepare samples under controlled temperature and humidity conditions, thus minimizing microstructural rearrangement due to volatile evaporation or temperature changes. The CEVS may be used to trigger on-the-grid processes to induce formation of new phases, or to study intermediate, transient structures during change of phase (“time-resolved cryo-TEM”). Recently we have developed a new CEVS, where temperature and humidity are controlled by continuous flow of a mixture of humidified and dry air streams.

Infrared diode laser jet spectroscopy of the van der Waals complex (N2O)2

1997 ◽  
Vol 91 (4) ◽  
pp. 689-696 ◽  
Author(s):  
HAI-BO QIAN ◽  
WOUTER HERREBOUT ◽  
BRIAN HOWARD
Keyword(s):  
Diode Laser ◽  
Van Der Waals ◽  
Van Der Waals Complex
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