Regardless of the abutment content or system, an impression of the abutment is then taken in addition to a crown secured for the abutment with dental cement. An additional variation on abutment/crown design is once the crown and abutment are just one piece plus the lag-screw traverses both to protected https://clearaligners.theideasblog.com/33039825/facts-about-removable-prosthetics-revealed