Efda Board Exam 181 Practice Questions And Answer

Inner Nut {Ans: Controls postion of the vice to open or close the band and increases or decreases the circumfrence of the band loop}Mechanical retention {Ans: between tooth and bonding agent}Which situation would cause a composite restoration to fail? {Ans: an internal void, moisture contamination, and improper light curing}Overjet {Ans: Horizontal space between upper and lower incisors}Contraindications for sealants include: {Ans: 1.rampant caries 2.interproximal lesions 3.tooth has been in the mouth for several years and has no decay}A wedge is used for what class of amalgam restoration? {Ans: class II}