Opaque resin layering technique on discolored substrates

This clinical report describes a conservative technique for managing intrinsic tooth discoloration through the application of an opaque composite resin layer prior to the adhesive cementation of ceramic restorations. The objective is to improve the optical outcome in cases where the underlying tooth substrate may compromise the final esthetic result. A 38-year-old female patient presented with discoloration of the maxillary central incisors following endodontic treatment due to dental trauma. After a diagnostic wax-up and bleaching protocol, teeth #9 and #10 were prepared for all-ceramic crowns, and tooth #8 for a ceramic veneer. To mask the darkened substrates, a thin layer (approximately 0.5 mm) of opacifying composite resin was applied directly to the tooth preparations. Lithium disilicate restorations were fabricated and adhesively cemented using a conventional bonding protocol. Direct composite restorations were also performed on adjacent teeth to reestablish proper canine guidance. At a two-year follow-up, the restorations showed excellent esthetic integration and functional stability. The use of an opacifying composite resin layer is an effective and minimally invasive method for masking discolored tooth substrates. This technique enhances the esthetic outcome of ceramic restorations and represents a viable alternative to more invasive or costly treatment options in similar clinical scenarios.