Electronic cigarettes (E‐cigarettes) have become increasingly popular around the world. Currently, dental professionals’ knowledge and attitudes are varied with many clinicians unclear regarding the impact of E‐cigarette products on the oral and general health of their patients. With developing social and health‐related challenges, advice of dental and medical associations and other regulatory bodies on E‐cigarette use is changing. Growing evidence demonstrating the risks of E‐cigarette usage has prompted a review of legislation in the United Kingdom (UK), United States of America (USA), Australia and Canada to include the sale and availability of E‐cigarettes, particularly those containing nicotine. Further consideration within the scientific and public health community is being given to assessing demographic usage patterns particularly uptake by non‐smokers and adolescents, efficacy as a cessation tool, the impact of vapour on bystanders and direct injuries via explosions as well as emerging lung injuries. This article aims to provide a summary of the most up to date evidence relating to E‐cigarette use, the latest position of dental associations and the oral health implications of E‐cigarettes compared to conventional smoking. The article also aims to collate this information in order to provide dental clinicians with guidance on how to advise patients, specifically in answering common questions posed regarding E‐cigarette use.

A major disadvantage of teaching grain crops courses in the academic year between September and May in western Canadian universities is the very limited opportunity to demonstrate growth characteristics under field conditions. Using greenhouse facilities as a substitute is not always practical due to space limitations, high rental costs, and artificial growing conditions. In the grain crops course taught at the University of Alberta, concepts of yield component compensation and limitations to grain crop growth and development are emphasized in lectures. This is supplemented by a laboratory assignment worth 10°70 of the final mark. Students sample wheat (Triticum aestivum L.) plants in the field from replicated seeding rate trials of two morphologically different wheat cultivars (one tall, one semidwarf) in the initial laboratory period. Students analyze the yield components and patterns of tiller hierarchy in a subsequent laboratory period during the winter. Students are then required to submit a report written in the style of a publishable paper. Sampling and data collection in the field allow students to obtain a good understanding of the degree of variability within and among plants that occur in a cereal stand. As a means of learning about tillering and plant plasticity during development, undergraduate students have consistently given this laboratory exercise high ratings, with an average of 4.5 on a scale of 1 (poor) to 5 (excellent) during the last 4 academic