<prompt> Which of the following is true about direct filling gold?Properly condensed mat gold has no voidsWhatever may be the type, voids are inherentVoids can be avoided with manual condensationNone of the above  <response>: Porosity is likely to occur in all direct gold restorations. Each type of gold requires a slight variation in technique to avoid either closed pores or open pores that intersect the surface.Ref: Phillips 12 ed page no 414,415 