Accuracy and Reliability of Shade Detection from an Intraoral Scanner
Abstract
Limited research has been published evaluating the shade detection feature on the new intraoral scanner, CEREC Primescan (Dentsply/Sirona). Objective: The purpose of this study was to compare the accuracy and reliability of shade detection of a new intraoral scanner (CEREC Primescan) to a spectrophotometer (VITA Easyshade Advance 4.0) . Methods: The CEREC Primescan and VITA Easyshade were calibrated according to the manufacturers instructions. Ten sets of two commercial shade guides were used: Vitapan Classical (VITA) with 16 shade tabs and Vitapan 3D Master (VITA) with 26 shade tabs. Three shade tabs of the same color were placed in a medium gingiva-colored matrix. The matrix was then placed in a black box to simulate an oral cavity. The middle third of the middle shade tab was then measured using the VITA Easyshade and then the CEREC Primescan and recorded. The measurements were repeated for everyshade tab, resulting in 840 total. The data were then analyzed for percent accuracy to the actual shade tab color and for percent reliability, or how often the same shade tab color was recorded. A median and Interquartile Range (IQR) were determined for each group. The data were analyzed with Mann-Whitney U tests (alpha=0.05). Results: No significant difference in accuracy was found between the two devices for both the Vitapan Classical and Vitapan 3D Master shade tabs. However, both devices were relatively inaccurate in detecting the shade of the tabs. For reliability, no significant difference was found between the two devices with the Vitapan 3D Master, but a significant difference was found between the two devices with the Vitapan Classical shade tabs. Conclusions: Both shade matching devices had relatively low but similar accuracy. Conversely, both shade matching devices had relatively good reliability. However, the VITA Easyshade had better reliability when using the Vitapan Classical shade tabs.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 20, 2022
- Accession Number
- AD1186192
Entities
People
- Jason S. Chong
Organizations
- Uniformed Services University of the Health Sciences