D-3, r. 4 - Code of ethics of dentists

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3.05.03. A dentist must safeguard his professional independence and avoid any situation which could put him in conflict of interest. A dentist is in conflict of interest, in particular, when he is in a situation where his judgement might be unfavourably affected to the detriment of his patient or his professional independence could be questioned.
R.R.Q., 1981, c. D-3, r. 4, s. 3.05.03.