Results 21 to 30 of about 65,642 (268)

Synergistic Antimicrobial Effect of Photodynamic Inactivation and SWEEPS in Combined Treatment against Enterococcus faecalis in a Root Canal Biofilm Model: An In Vitro Study

Applied Sciences, 2023
Background: Persistent bacterial infections caused by biofilm-associated Enterococcus faecalis are a global public health concern. This study aims to compare the biofilm removal effects of methylene blue (MB) or hydrogen peroxide (HP) mediated ...
Shima Afrasiabi, Steven Parker, Nasim Chiniforush   +2 more
doaj   +1 more source

Gingival Depigmentation Using Diode 980 nm and Erbium-YAG 2940 nm Lasers: A Split-Mouth Clinical Comparative Study

International Journal of Dentistry, 2021
Aim of the Study. This study aimed to compare the effectiveness of diode laser (980 nm) and erbium-YAG laser (2940 nm) for gum depigmentation. Background.
Zaid Kamel Jnaid Harb, Walid El-Sayed, Jumma Alkhabuli   +2 more
doaj   +1 more source

Effect of Three Wavelengths of Diode Laser on the Efficacy of Bleaching of Stained Teeth

Frontiers in Dentistry, 2020
Objectives: Light irradiation and heat have been used to accelerate the process of tooth bleaching. This study aimed to assess the efficacy of conventional bleaching compared to laser-bleaching using three different wavelengths of diode lasers ...
Reza Saeedi, Ladan Ranjbar Omrani, Mahdi Abbasi, Nasim Chiniforush, Mojgan Kargar   +4 more
doaj   +1 more source

Management of Chronic Periodontitis Using Chlorhexidine Chip and Diode Laser-A Clinical Study [PDF]

Journal of Clinical and Diagnostic Research, 2016
Introduction: The use of adjuncts like chlorhexidine local delivery and diode laser decontamination have been found to improve the clinical outcomes of scaling and root planing in non-surgical periodontal therapy in patients with chronic periodontitis.
Kachapilly Arun Jose, Majo Ambooken, Jayan Jacob Mathew, Annie Valayil Issac, Ajithkumar Parachalil Kunju, Renjith Athirkandathil Parameshwaran   +5 more
doaj   +1 more source

Antimicrobial Photodynamic Therapy Protocols on Streptococcus mutans with Different Combinations of Wavelengths and Photosensitizing Dyes

Bioengineering, 2019
The aim of the study is to test the application of different laser wavelengths, with and without different photosensitizing dyes on different types of cultures. Laser irradiation was realized on Streptococcus mutans in both solid and liquid culture media
Elisabetta Merigo, Stefania Conti, Tecla Ciociola, Maddalena Manfredi, Paolo Vescovi, Carlo Fornaini   +5 more
doaj   +1 more source

Re-mineralization capability of two natural nano-plant extracts on early enamel caries using diode laser

Indian Journal of Dental Sciences, 2022
Background: To investigate diode laser application and two natural nano-plant extracts effect on the re-mineralization and surface micro-hardness of early enamel carious lesions.
Lamiaa Mahmoud Moharam, Doaa Mohamed Sadony   +1 more
doaj   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Histological evaluation of the surgical margins of oral soft tissue incisions using a dual-wavelength diode laser and an Er, Cr:YSGG laser; an ex vivo study [PDF]

Journal of Applied Oral Science
Oral soft tissue lesions require a precise diagnosis by oral biopsy with the ability to recognize these lesions within histopathological levels, so the instrument used for the incisions should be safe and cause little to no harm to the surrounding tissue.
Alaa Jamal Al-ANI, Hanan J TAHER, Ammar Saleh ALALAWI   +2 more
doaj   +1 more source

Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending

Advanced Engineering Materials, EarlyView.
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen, Anastasiya Toenjes, Annika Bohlen, Thomas Seefeld   +3 more
wiley   +1 more source

Laser Metal Powder Deposition of Titanium Microalloyed HSLA Steel FeC0.12Si0.25Mn1.3

Advanced Engineering Materials, EarlyView.
This study investigates the additive manufacturing of titanium‐doped high‐strength low‐alloy (HSLA) steel via laser metal deposition. It reveals distinct process‐structure relationships for elemental powder blends compared to prealloyed feedstocks.
Olaf Stelling, Matthias Steinbacher, Nils Ellendt   +2 more
wiley   +1 more source