David’s dental clinic in Toronto, Sleep For Dentistry, is anesthesia-based, treating patients who require intravenous sedation or advanced techniques in local anesthesia. Many of these people have special medical needs or are dental phobic. David has given over 400 presentations around the world on topics related to the management of medical emergencies in healthcare settings, local anesthesia for dentistry and the use of sedation in dentistry. He has lectured for many university continuing education programs, dental societies and conventions. He is the author of numerous articles, has peer-reviewed papers for a variety of dental journals and as well has acted as a consultant for dental and pharmaceutical companies.