aacd-American Academy of Cosmetic Dentistry Set 2

the quality and quantity of light reflection ✘ the wavelength of reflected light ✘ a milky iridescent appearance produced by light scattering ✘ the intensity of color or degree of hue saturation ✔

open the orifices of dentinal tubules. ✘ link the dentin to the resin. ✘ remove the smear layer. ✘ improve bond to the composite filler. ✔

adjusting the occlusal material to gradually load the bone to implant interface. ✘ gradually intensifying the occlusal contacts following Stage I surgery. ✘ utilizing acrylic on a transitional implant prosthesis to allow for the addition or removal of acrylic toprovide short periods of hyperocclusion. ✘ improving the bone density and strength by allowing the implant to remain unloaded during any occlusalcontact. ✔

penetrate the microcracks that can develop during the finishing procedure. ✘ bond the restoration to tooth structure at the margin. ✘ replace the air-inhibited layer with a very polishable surface. ✘ fill ditches and defects in the composite surface due to placement technique. ✔

Isolation with a contour strip without rubber dam ✘ Rinsing etchant from the enamel surface for two to five seconds ✘ Vital bleaching of teeth a few days before bonding ✘ Agitation of the etchant when applying to enamel ✔

By applying liners and bases in deep cavity preparations ✘ By increasing light intensity from the curing light ✘ By reducing the number of increments of composites ✘ By using composites with a lower percentage of inorganic filler ✔

Under compressive stress, but weaker under tensile and shear stress ✘ Under tensile stress and weaker under shear and compressive stress ✘ Under shear stress and weaker under compressive and tensile stress ✘ Compressive stress is counter balanced by the combined tensile and shear stress ✔

Value ✘ Opalescence ✘ Opacity ✘ Fluorescence ✔

0.5 mm ✘ 1.0 mm -2.0 mm ✘ 3.0 mm -4.0 mm ✘ 5.0 mm ✔

It occurs above the surface of dentin ✘ It adds filled resin to unfilled resin causing a hybrid of the two materials ✘ It does not affect the dentinal tubules ✘ It is stronger than smear layering bonding ✔