Numerical investigation of cavitation in periodontal Pockets: Insights for enhancing cleaning efficiency.

Ultrasonic dental scalers are indispensable instruments for efficient dental cleaning through the generation of cavitation. To gain valuable insights and enhance the cavitation cleaning effects, a numerical investigation is conducted using the finite element method via ABAQUS. Numerical results are compared with the experimental cavitation image for a scaler undergoes vibrations near a wall.

Online videos: The hidden curriculum.

Introduction: Dental undergraduates will access the Internet searching for learning materials to complement their training; however, open access content is not generally recommended by dental schools. This study aimed to evaluate how dental students are using online video content.

Materials And Methods: Students from eight Universities (Athens, Birmingham, Brescia, Cardiff, Melbourne, Paris, Sao Paulo and Valdivia) representing three continents were invited to complete a survey on their access and learning from online videos.

Using quizzes to provide an effective and more enjoyable dental education: A pilot study.

Introduction: Increasingly, dental education is using digital strategies to deliver teaching; however, not all of these learning materials are engaging and effective.

Aim: To evaluate the perception and knowledge retention of undergraduate dental students after using two different digital learning tools: quizzes and PDF.

Methods: Thirty-three students from a Dental School in the United Kingdom took part in the research.

A critical review of qualitative research publications in dental implants from 2006 to 2020.

Objectives: This critical review is aimed to investigate the current status of qualitative research in dental implant research and to explore the quality of available information.

Material And Methods: A systematic search was done on the journal databases to identify dental implant research articles that used qualitative methodology during 2006 and 2020. The resulting articles were appraised against the checklist offered by the Critical Appraisal Skills programme (CASP) tool.

Challenges in dental implant provision and its management in general dental practice.

Objectives: Dental implants have become a well-publicised treatment modality in dentistry. Implants are generally placed in the private sector by dentists who have undertaken further learning. The continued maintenance of implants falls within the duty of care for the general dental practitioner.

Simulation training for ceramic crown preparation in the dental setting using a virtual educational system.

Objectives: The aim was to evaluate the effectiveness of a pre-clinical training of ceramic crown preparation using the Virtual Educational System for Dentistry.

Material And Methods: Fifty-seven dental students were recruited to prepare a ceramic crown under the guidance of the Real-time Dental Training and Evaluation System (RDTES) in order to collect pre-learning data. They participated in the online virtual learning course independently on the Virtual Learning Network Platform (VLNP).

Games in dental education: playing to learn or learning to play?

Learners are motivated when using games and they have been successfully introduced in many healthcare subjects such as medicine and nursing. The development of games in dentistry has not kept pace with their uptake both as a popular pastime and their implementation in other subjects. Games in the learning space have many advantages.

Mobile learning in dentistry: challenges and opportunities.

Introduction The impact of smartphone technology is changing the approach to learning and teaching in clinical dental education. The aim of this study was to understand the challenges, opportunities and attitudes that both dental undergraduate students in an English dental school and tutors experience when using electronic learning.Materials and methods Six faculty members and 20 students agreed to take part in semi- structured interviews.

The availability of open-access videos offered by dental schools.

Background: The Internet has become an established learning tool in dental education where students can access online videos on a range of dental subjects. However, finding reliable peer-reviewed content is not straightforward.

Aim: To evaluate the video content offered by UK and Republic of Ireland (RoI) Dental Schools on their YouTube channels and public websites.

Who is providing dental education content via YouTube?

Introduction Online video sharing platforms are regularly visited by dental students. However, they may be accessing non-peer-reviewed content which is not officially recommended by their dental school's curriculum.Aims To evaluate the reliability of dental education content found on YouTube.

Fake news and dental education.

Fake news is used to spread disinformation on many subjects with the aim of distorting the truth. There has been a rise of fake news stories in dentistry such as homemade whitening products and misinformed information on how to strengthen your teeth. Such stories populate YouTube and other social media.

Femtosecond laser ablation of dentin and enamel for fast and more precise dental cavity preparation.

Purpose: The purpose of the present work was to achieve fast and more precise ablation in dentin and enamel by using a commercial femtosecond laser system with high repetition rate, whilst avoiding any collateral irreversible damages in the hard tissue and pulp area.

Methods: We used fluence of the incident laser pulses which was marginally higher than the ablation threshold for dentin and enamel. The study was based on the hypothesis that femtosecond laser operating with a repetition rate in the range of 100-500 kHz can controllably ablate dental tissue obtaining sufficiently high removal rate whilst avoiding any collateral irreversible damages in the hard tissue and pulp area.

Evidence-Based Dentistry in Everyday Practice.

This article informs readers of a method of implementing evidence-based dentistry in practice. Following these steps, practitioners should be able to use this skill in an efficient manner. The importance of evidence-based dentistry and its relevance to situations encountered in everyday practice is also highlighted.

The deposition and imaging of silica sub-micron particles in dentine.

Objectives: Sub-micron particles may assist in the delivery of compounds into dentine tubules. The surface interactions of the particles with dentine may prevent them from entering the tubules. The aim of this study is to investigate whether silica particles, treated with surfactants improves dentine tubules occlusion using both artificial and human tooth models

Methods: Spherical silica particles (size 130-810nm) bearing an encapsulated ruthenium luminescent complex were coated with the following surfactants: Zonyl(®) FSA, Triton(®) X-100 and Tween20(®).

X-ray scattering evaluation of ultrastructural changes in human dental tissues with thermal treatment.

Micro- and ultrastructural analysis of burned skeletal remains is crucial for obtaining a reliable estimation of cremation temperature. Earlier studies mainly focused on heat-induced changes in bone tissue, while this study extends this research to human dental tissues using a novel quantitative analytical approach. Twelve tooth sections were burned at 400-900°C (30-min exposure, increments of 100°C).

Recovering incomplete data using Statistical Multiple Imputations (SMI): a case study in environmental chemistry.

This paper presents a statistical technique that can be applied to environmental chemistry data where missing values and limit of detection levels prevent the application of statistics. A working example is taken from an environmental leaching study that was set up to determine if there were significant differences in levels of leached arsenic (As), chromium (Cr) and copper (Cu) between lysimeters containing preservative treated wood waste and those containing untreated wood. Fourteen lysimeters were setup and left in natural conditions for 21 weeks.

Combining self-modeling curve resolution methods and partial least squares to develop a quantitative reaction monitoring method with minimal reference data.

An example of combining self-modeling curve resolution (SMCR) methods and partial least squares (PLS) to construct a quantitative model using minimal reference data is presented. The objective was to construct a quantitative calibration model to allow real-time in situ ultraviolet-attenuated total reflection (UV/ATR) measurements to determine the end-point during a chlorination reaction. Time restrictions for development combined with difficult reaction sampling conditions required the method to be developed using only a few key reference measurements.

The automatic recognition and counting of cough.

Background: Cough recordings have been undertaken for many years but the analysis of cough frequency and the temporal relation to trigger factors have proven problematic. Because cough is episodic, data collection over many hours is required, along with real-time aural analysis which is equally time-consuming. A method has been developed for the automatic recognition and counting of coughs in sound recordings.