After a discussion of the foundations of ethical thinking in general, a link is made to the professional ethics for medical and dental practitioners. Professional ethics are constantly influenced by the changing society, although some values remain fundamental. A critical look at existing ethical codes for dentists is followed by some examples of the wider context in which dental care is provided and its ethics influenced. Not only safeguarding of professionalism in dental treatment but the fulfillment of the aspirations for both dentist and patient orientates a redefined modern ethical code.