D-4, r. 6 - Code of Ethics of the Ordre des denturologistes du Québec

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9. A denturologist shall refrain from practising while in a condition or state that could compromise the quality of his services. In particular, he shall not practise his profession while under the influence of alcoholic beverages, narcotics, hallucinogens, anaesthetics, or any other substance that could cause intoxication, weakness or impairment of his faculties, or loss of consciousness.
O.C. 1011-85, s. 9.