Digital workflow for virtually designing and milling ceramic lithium disilicate veneers: a clinical report

Traditional methods for fabricating dental veneers rely on physical impressions and stone casts. These methods have been widely used but require multiple steps and materials. Pressed ceramics, such as lithium disilicate, have been employed successfully in veneer fabrication for years. Recent advancements in digital dentistry have introduced computer-aided design and manufacturing (CAD/CAM) systems. These systems allow for digital impressions and remote milling of dental restorations. However, the transition from traditional to fully digital workflows for veneers remains limited. Laminate veneers are particularly delicate and require precise execution. The shift to digital workflows for these restorations presents new challenges and opportunities. This gap motivated the exploration of a digital-only approach for lithium disilicate veneers. The need for a cast-free, digital method for multiple consecutive veneers is still under investigation.

This clinical report aims to describe a digital workflow for fabricating multiple lithium disilicate veneers without using physical casts. The goal is to assess the feasibility and outcomes of a fully digital approach for laminate veneers. The study focuses on a patient requiring esthetic enhancement of maxillary anterior teeth. The workflow includes digital scanning, virtual design, and remote milling of the restorations. The authors propose that this method could reduce chair time and improve precision. The report also highlights the specific advantages and challenges of using lithium disilicate in this context. The rationale for selecting this ceramic material is discussed in detail. This approach offers a novel alternative to traditional veneer fabrication techniques.

The digital workflow begins with intraoral scanning to capture a 3D image of the patient’s dentition. This digital impression is then used to design the veneers virtually using CAD software. The design is exported and sent to a remote milling center for fabrication. The lithium disilicate blocks are milled using a CAM system based on the digital model. The restorations are then sintered and glazed according to standard protocols. The final veneers are tried in the patient’s mouth and adjusted as needed. No physical stone casts are used in this process. The entire workflow is documented step by step for clarity and reproducibility.

The digital workflow successfully produced multiple lithium disilicate veneers without the need for physical impressions or stone casts. The restorations were fabricated remotely and delivered to the clinical site for placement. The virtual design process allowed for precise customization of each veneer. The sintered and glazed veneers demonstrated good esthetic outcomes and fit. The patient reported satisfaction with the final result. The workflow reduced the number of clinical visits and improved efficiency. However, challenges were noted in the virtual design phase, particularly with complex anatomical features. The authors suggest that further refinement of the digital tools is necessary for broader adoption.

The authors conclude that a fully digital workflow is feasible for fabricating lithium disilicate veneers. The method offers advantages such as reduced chair time and improved precision. However, the technique remains sensitive to design accuracy and material handling. The use of lithium disilicate was justified based on its esthetic and mechanical properties. The workflow is suitable for patients requiring multiple consecutive veneers. The authors propose that this approach could streamline veneer fabrication in clinical practice. Further studies are needed to validate the long-term performance of digitally fabricated veneers. The findings suggest that digital dentistry can complement traditional methods in restorative dentistry.