We have presented the case of a 33?year?old woman with dental fluorosis who wanted an esthetic ceramic veneer treatment. A digital smile design was created on a virtual patient, and a virtual diagnostic wax?up was made. Based on the suggested ceramic material thickness, virtual teeth preparation was performed on the diagnostic wax?up. A special?teeth preparation template was then created digitally and fabricated using a stereolithographic technique. This template guided the teeth preparation using a special bur with a stopper. The veneers were fabricated by CAD/CAM and delivered good esthetics and function. The stereolithographic tooth reduction template helps realize digital restorative planning. It provides better control of the reduction depth of the labial and incisal preparation, making the operation simpler. The digital dental esthetic ceramic veneer treatment workflow described here using a stereolithographic template for teeth preparation helped with the accurate control of reduction depth for minimally invasive teeth preparation, making the operation simpler, which is a significant improvement over the previous methods. Three composite materials—Omnichroma [OM], Tetric EvoCeram [TE], and TPH Spectra ST [TS] were placed into occlusal preparations (5mm diameter, 2mm depth) on 15 bi?layered acrylic teeth per each shade A2, B1, B2, C2, and D3. The composites were placed in a single increment and cured using Bluephase G2 light. The L*, a*, and b* readings were obtained using VITA Easy shade V for the teeth and restorations; mean ΔE00 values were calculated and assessed using two?way analysis of variance with a test of simple effects with multiple comparisons for significance (P <.05). Three teeth were restored to anatomical form with each of the composites for the five shades and were subjectively graded by 30 evaluators as 1—best match, 2—intermediate, and 3—poorest match. Shade matching is composite and shade?dependent. Overall, TE matched the multiple shades better than the other two materials. Single and group shade composites displayed shade matching ability inferior to a multi?shade composite material, which may limit their use in highly esthetic clinical situations. Clinical complications stemming from issues relating to esthetic integration can present a burden on the restorative team, often resulting in strenuous relationships among its members. The faithful imitation of the optical appearance of dental hard tissues with direct? and indirect restorations has been at the center of interest in a great number of publications from the realm of esthetic dentistry over the past 40 years. The present report describes a new approach Restorative Dentistry and Odontology Qira Zia Ziauddin University, Pakistan to objective shade communication, by transcending the role of dental photography from its purely descriptive purpose to the level of quantification, thus abandoning the use of the established shading regimes and replacing them with a patient personal shade recipe based on the CIELAB color space instead. Objective shade communication is possible with the eLAB system by combining numeric shade quantification with dental photography. The eLAB system presents a viable alternative to the traditional approach to shade communication and shade matching in dentistry.
Published Date: 2021-04-05; Received Date: 2021-02-02