Although international agreements set the framework for research ethics, countries vary in their interpretation and execution. The Government of Canada guidelines are based on the Tri-council policy statement: ethical conduct for research involving humans (2005) and the new CIHR guidelines for health research involving Aboriginal people (2007). In this critical review, we address 3 areas of educational value to practitioners who care for the oral health needs of the public, research trainees and research investigators who advance knowledge pertaining to oral health: protection of human study participants, conflicts of interest and investigator integrity. Its main message is that ethical health care should be supported by a strong foundation of ethical research.