The Review article The treatment of oral cancer: an overview for dental professionals by Deng et al. on page 244 discusses the four main modalities to best treat oral cancer. Test your knowledge by first reading the article, then go to http://www.ada.org.au. Log on to the members site and click on ‘Journal’. Then click on ‘ADJ CPD Quizzes’ and choose this month’s issue. Select the option that you think provides the best answer to each question. Click ‘Done’ and in an instant you’ll know how you scored. Remember to print out a copy of your score for your records. Completion of this quiz entitles you to 1 CPD hour. Please note the Editorial Office will no longer accept hard copies of completed questionnaires. The Quiz must be completed online and a printed copy of your results retained for CPD audit purposes.