Fitting and cementation

This chapter will emphasise the need to:Try in restorations using a logical sequence to locate issues preventing seating, and adjust for optimum fit, aesthetics, and occlusion.Be aware of materials needing specific surface treatments prior to resin bonding.Collaborate with your nurse and use scrupulous moisture control while adhesive bonding and when using multistage adhesives.Select a conventional cement (e.g. zinc phosphate) for retentive preps with subgingival margins where resin bonding and removal of extruded cement would be difficult.Appreciate the different approaches needed for luting veneers and securing implant crowns (screw-retained and cemented).Arrange follow-up and appropriate supportive periodontal care where this is indicated

Clinical factors affecting the translucency of monolithic Y-TZP ceramics

The use of monolithic yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) ceramics in aesthetically critical regions is questionable because of the insufficient translucency and opacity of the restorations. Intrinsic (manufacturing process) and extrinsic factors (laboratory procedures and clinical factors) can affect the translucency of monolithic zirconia. In this narrative review, the clinical factors (thickness, cementation type, colour of the monolithic zirconia, surface finishing methods and wear, dental background, cement colour, low temperature degradation) affecting the translucency of monolithic Y-TZP ceramics were reported