| 摘要 |
A Gingival cord-packing instrument has an elongate handle, and opposite end sections for engaging the gingival cord. At least one of the end sections of the instrument constitutes a blade that is so dimensioned and configured as to enable gentle displacement of the gingiva from the adjacent tooth, for effective insertion of the cord. The end sections of the instrument will generally extend in opposite direction and in mutually parallel planes, lying obliquely to the handle axis, with the blades being so oriented as to cause grooves formed in their tip elements to extend in mutually perpendicular planes.
|
