Composite veneers: The direct–indirect technique revisited
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This article provides a quick update on the direct-indirect composite veneer technique. Composite veneers have long been used as a conservative and esthetic treatment option for anterior teeth. While they are generally performed using a direct technique, there has been renewed interest in the direct-indirect composite veneer technique because of its advantages and broad indications for the restoration of tooth color and morphology. In the direct-indirect composite veneer technique, the selected composites are initially applied on the tooth using a layering approach, without any bonding agent, sculpted to a primary anatomic form with slight excess, and light cured.

The partially polymerized veneer is then removed from the tooth, heat tempered, and finished to final anatomy and processed extra orally before being luted. Advantages of this technique include enhanced physical and mechanical properties afforded by the tempering process, unrivaled marginal adaptation, enhanced finishing and polishing, and the ability to try in the veneer before luting, enabling shade verification and modulation process that is not possible with the direct technique. The direct-indirect approach also affords enhanced gingival health and patient comfort.

The direct-indirect technique for composite veneers combine advantages of the direct composite placement technique with those of the indirect veneer technique, including operator control, single visit fabrication and delivery, increased material properties, and excellent esthetics.

Source: https://onlinelibrary.wiley.com/doi/abs/10.1111/jerd.12696?af=R
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