Review of nanomaterials in dentistry: interactions with the oral microenvironment, clinical applications, hazards, and benefits.

Interest in the use of engineered nanomaterials (ENMs) as either nanomedicines or dental materials/devices in clinical dentistry is growing. This review aims to detail the ultrafine structure, chemical composition, and reactivity of dental tissues in the context of interactions with ENMs, including the saliva, pellicle layer, and oral biofilm; then describes the applications of ENMs in dentistry in context with beneficial clinical outcomes versus potential risks. The flow rate and quality of saliva are likely to influence the behavior of ENMs in the oral cavity, but how the protein corona formed on the ENMs will alter bioavailability, or interact with the structure and proteins of the pellicle layer, as well as microbes in the biofilm, remains unclear. The tooth enamel is a dense crystalline structure that is likely to act as a barrier to ENM penetration, but underlying dentinal tubules are not. Consequently, ENMs may be used to strengthen dentine or regenerate pulp tissue. ENMs have dental applications as antibacterials for infection control, as nanofillers to improve the mechanical and bioactive properties of restoration materials, and as novel coatings on dental implants. Dentifrices and some related personal care products are already available for oral health applications. Overall, the clinical benefits generally outweigh the hazards of using ENMs in the oral cavity, and the latter should not prevent the responsible innovation of nanotechnology in dentistry. However, the clinical safety regulations for dental materials have not been specifically updated for ENMs, and some guidance on occupational health for practitioners is also needed. Knowledge gaps for future research include the formation of protein corona in the oral cavity, ENM diffusion through clinically relevant biofilms, and mechanistic investigations on how ENMs strengthen the tooth structure

Internationalisation and health professional education

Health professionals who teach may be salaried health sector employees who are directly engaged by a higher education institution in adjunct or conjoint academic appointments. Many teaching health professionals also provide learning activities through good will and altruism. Another group consists of academics with health professional degrees for whom academia is the primary employment; these professionals may engage in professional clinical practice in only a limited capacity

Dentistry students’ perceptions of learning management systems

This paper reports an exploratory survey study about students’ perceptions of learning management systems (LMS) at the Faculty of Dentistry, University of Sydney. Two hundred and fifty-four students enrolled in the Bachelor of Dentistry and the Bachelor of Oral Health programmes participated in an online survey aimed at exploring their beliefs and attitudes as well as their preferences for eLearning tools. Results indicated a strong preference of students for using LMSs as resource repositories rather than for higher-order learning activities such as online discussion forums. This finding holds importance for consideration of the development of the educational resources modalities that support development of essential graduate attributes such as information literacy and collaborative learning

Benchmarking learning and teaching: developing a method

Copyright © 2006 Emerald Group Publishing LimitedPurpose – To develop a method for benchmarking teaching and learning in response to an institutional need to validate a new program in Dentistry at the University of Sydney, Australia. Design/methodology/approach – After a collaborative partner, University of Adelaide, was identified, the areas of teaching and learning to be benchmarked, PBL approach and assessment, were established. A list of quality indicators for these aspects of teaching and learning were first developed conceptually and then validated by the literature. Then, using a quality enhancement framework, levels of achievement for each indicator were developed. Findings – The findings are represented as a set of tables. These were mutually developed with the benchmarking partner and represent an agreed model for a benchmarking project to progress to the next stages of implementation and evaluation. Practical implications – This model can be adapted for any benchmarking project in all levels of education; primary, secondary, tertiary and continuing. Originality/value – The issue of benchmarking is high on the educational agenda, especially in higher education. The literature reports on a number of projects but with no clear explanation of a method for benchmarking. The fact that this model is evidence-based in its approach and that it focuses on learning and teaching, also marks it as original and a significant development in this area.Cheryl Henderson-Smart, Tracey Winning, Tania Gerzina, Shalinie King, Sarah Hyd