Marginal Adaptation, Shade Matching, and Patient Satisfaction of Polychromatic Feldspathic Laminate Veneer Versus Polychromatic Hybrid Ceramic Laminate Veneer.(Randomize Control Trial)

PICO P: Population: patients' needs esthetic anterior veneers. I: Intervention: Multicolor hybrid ceramic laminate veneers. C: Comparison: Multicolor feldspathic laminate veneers. O: Outcome: primary: Marginal adaptation. secondary:1 Shade matching 2. Patient satisfaction. S: Study design: Randomized controlled clinical trial. T Time: One year. Research question Will polychromatic hybrid ceramic laminate veneer improve the marginal adaptation, shade matching, and patient satisfaction when compared to polychromatic feldspathic porcelain laminate veneer? Statement of the problem Anterior all-ceramic restoration exhibits esthetic challenge due to color gradient of the tooth nature from cervical to incisor, subsequently, the monochromatic CAD/CAM blocks need external stains which require more time and effort moreover it may leach out over time.

Since the feldspathic ceramic blocks display the highest translucent properties of all ceramic blocks, which make it the first choice in the esthetic zone, on the other hand, it has low strength properties that need careful handling before cementation consequently, the hybrid ceramic overcomes the brittleness characteristic of felspathic ceramics with new material that has comparable esthetic and translucency with polychromatic feature and resilience properties.

Multi-shaded blocks have recently been introducing to the market due to a lack of evidence in clinical performance evaluating marginal adaptation and shade matching of the polychromatic newly introduced blocks comparing their different color gradient. For that, the current study will directly evaluate the shade matching of feldspathic polychromatic porcelain blocks versus hybrid ceramic polychromatic blocks to enhance the multichromatic shade matching of laminate veneers restorations.

Rationale Decision-making for the treatment of esthetic areas performed to achieve highly esthetic outcomes the primary factor for achieving this goal is the material used which, should be of a high shade matching the nature color transition of the natural teeth from cervical to incisal third. Probably the new Enovation of multicolor hybrid ceramic and feldspathic porcelain will solve this problem.

Aim of the study: