Similar questions:
Isthmus fractures of a Class II amalgam restoration most frequently occur because of
inadequate width and bulk.NDEB released questions part 2 set 4
Isthmus fracture during function in a recently placed proximal-occlusal silver amalgam restoration (with occlusal extension through the occlusal fissure system), is most likely due to a preparation with
inadequate isthmus depth.NDEB released questions set 11
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