Abstract

1. The procedures that have been described are not hypothetical but have been proved clinically. 2. Jacket crown preparations cannot be the same for all teeth. 3. A complete uniform shoulder is not essential for all teeth although it is the preparation of choice. The condition in which we find the tooth, its anatomy, and position in the arch are the factors that determine whether the preparation should have a full or partial shoulder or be shoulderless. 5. Preparations must be completed so that the resulting crown will be adequately supported and uniformly thick. This insures a durable, esthetically acceptable result.

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