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

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5.11. The Order is represented by a graphic symbol corresponding to the original held by the secretary of the Order and composed of the letters “O.D.Q.” joined inside a rectangle.
A denturologist who reproduces the Order’s graphic symbol in a statement or advertisement shall ensure that it corresponds to the original held by the secretary of the Order.
O.C. 1381-91, s. 1.