The invention relates to a tubular dental reinforcement preform formed by a cord made from woven fibres. The cord is impregnated and filled by a polymerizable resin and is able, by isostatic crushing, to take the shape of a strip without breaking of the woven fibres constituting the cord, the polymerizable resin being able to creep through the cord to form two lateral parts. The invention also relates to a production method of a dental contention strip from such a tubular reinforcement preform.
