Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Dental Materials
The Visual And Spectrophotometric Effect Of External Bleaching On Omnichroma Resin Composite And Natural Teeth, Michael Brian Evans
The Visual And Spectrophotometric Effect Of External Bleaching On Omnichroma Resin Composite And Natural Teeth, Michael Brian Evans
Graduate Theses, Dissertations, and Problem Reports
Objective: To determine the visual and spectrophotometric effect external tooth bleaching has on natural tooth structure and OMNiCHROMA composite at various number of treatments. Variables were compared to determine if there is a detectable difference between the composite and the tooth before and after bleaching.
Methods: Preparation and restoration of 25 previously extracted teeth was completed. OMNiCHROMA composite was used. Each tooth was measured visually with a VITA shade guide and a colorimeter. Measurements were recorded before bleaching, after 5 and 10 treatments. Statistical analysis was completed and ΔE values between the composite and tooth were compared between the 3 …