Results 91 to 100 of about 3,596 (201)
Inhibition of the ultrasonic microjet-pits on the carbon steel in the particles-water mixtures
In the incubation period of ultrasonic cavitation, due to the impact of microjets on the material surface, the needle-like microjet-pits are formed. Because the formation of microjet-pits relates with the evolution of cavitation erosion on engineering ...
Dayun Yan, Jiadao Wang, Fengbin Liu
doaj +1 more source
The Effect of Mechanical Instrumentation on Dental Hard Tissue In Vitro: A Systematic Review
ABSTRACT Objective The aim of this review was to analyse the effects of hand instruments, ultrasonic scalers and air polishing devices on dental hard tissues, focusing on material loss and surface roughness. Methods Electronic databases MEDLINE, EMBASE, and the Cochrane Library were screened for relevant studies.
Katerina Mezquita Prieto Dvorska +2 more
wiley +1 more source
ABSTRACT Objective We aimed to develop and evaluate machine learning models to support population‐level risk stratification for dental caries in the permanent dentition of 12‐year‐old Korean children and to visualise the relative importance of key predictors.
Gahyun Cho +4 more
wiley +1 more source
Combined wear of slurry erosion, cavitation erosion, and corrosion on the simulated ship surface
The surface material of marine ship hulls suffers degradation by slurry erosion because of the impact of sands or solid particles in seawater. When the ship’s moving speed increases, pressure is changed suddenly and cavitation erosion will occur ...
Liang Liang +5 more
doaj +1 more source
Diachronic Trends in Dental Hygiene Over the Last 2000 Years in Milan, Italy: An Exploratory Study
ABSTRACT Background Oral health is a multi‐factorial condition influenced by diet, hygiene and sociocultural habits and its historical evolution can be traced through the bioarchaeological analysis of dento‐skeletal remains, offering unique insights into past lifestyles and public health trends.
Lucie Biehler‐Gomez +9 more
wiley +1 more source
ABSTRACT Objective This study aimed to analyse the three‐dimensional forces acting on maxillary teeth with aligners activation of en‐masse retraction based on the different attachment positions in vitro. Methods Three groups were designed for the same 0.25 mm en‐masse retraction forces with three different attachment positions.
Yongjie Fan +6 more
wiley +1 more source
ABSTRACT Langerhans cell histiocytosis (LCH) is a neoplastic process originating from immature myeloid precursor cells. In this report, we describe a case of a 17‐month‐old with scaling of the scalp and swelling of the bilateral parotid glands who developed acute respiratory distress.
Aretha On +4 more
wiley +1 more source
Abstract In recent years, the clinical treatment and symptom management of neurological disorders have faced significant challenges due to the high complexity of the nervous system's structure and function. Against this backdrop, physical stimulation techniques have emerged as a vital complementary approach to traditional pharmacological treatments and
Wanying Li, Liqun Chen
wiley +1 more source
Using a factorial sweep of ultrasound fundamental and pulse repetition frequencies, we built a parametric electrophysiological–transcriptomic map of MscL‐G22S‐mediated hippocampal neuromodulation, providing reference data for precision, parameter‐aware ultrasound neuromodulation.
Xin Li +3 more
wiley +1 more source
ABSTRACT Due to their superior load density, planetary gear journal bearings (PGJB) are progressively replacing rolling element bearings in wind turbine gearboxes; therefore, accurately revealing the dynamic characteristics of drivetrains supported by these bearings under variable operating conditions is crucial for ensuring operational reliability ...
Pengcheng Jin +3 more
wiley +1 more source

