Evaluation of Clinical Performance of Class IV Restoration Using Organically Modified Ceramic (OMNOCER) in Comparison to a Methacrylate Based Composite Resin

cavity margins will be extended to the proximal area, incisal edge, facial and lingual surfaces All enamel margins will be beveled at a 45° angle to the external cavosurface.(approximately 0.5-2.0 mm) An impression for the upper anterior teeth will be taken to produce a silicon palatal index The proximal margins of the restorations will be achieved using the Unica anterior matrix teeth will be etched using 37% phosphoric acid gel for 30 s then rinsed with air water for 20 s A single coat of universal bond cured using and LED light curing unit for 10 s Using the chosen enamel shade of the ORMOCER Resin Composite a thin layer (0.5-1 mm) Unica matrix will used to produce the proximal margins of the restorations Contouring, finishing and polishing of the restoration will be done Dental floss and finishing strips will be used Rubber dam will then be removed and occlusion will be checked using an articulating paper

The exact same steps as in the intervention will be done but using the chosen shades of Methacrylate Based Composite Resin. (Ceram.X Spectra ST, Dentsply Sirona, UK)