Background: Getting the shade selection right is crucial in restorative dentistry because it ensures dental prostheses blend naturally with a patient's teeth, leading to better aesthetic outcomes. Traditionally, shade matching has been done visually with shade guides, though this approach often has issues with consistency and accuracy. Digital shade selection devices offer a more objective, consistent, and reliable solution.
Objective: This literature review examines the effectiveness, accuracy, and clinical results of digital shade selection methods versus traditional visual techniques. It also discusses the advantages, challenges, and future potential of digital shade selection in dentistry.
Materials and Methods: A detailed literature review was conducted using databases like PubMed and Google Scholar, focusing on studies that compared digital shade selection with traditional visual approaches. Studies that evaluated clinical performance, accuracy, and patient satisfaction with digital systems were included.

The included studies were classified into the following categories:
In Vivo Studies: These studies evaluated shade selection methods in clinical or real-life settings, assessing the accuracy, reliability, and performance of various shade-matching devices
In Vitro Studies: In vitro studies focused on controlled, laboratory-based analyses of shade selection techniques and device performance under standardized conditions
Comparative Studies: Comparative research examined differences between traditional visual and digital shade selection methods, including the accuracy, consistency, and reliability of various devices in clinical and laboratory settings
Review Studies: Systematic reviews and literature reviews provided a broader evaluation of visual and digital shade selection methods, including factors affecting accuracy, effective conditions, and the clinical implications of these technologies