Case 4
Case presented with a great loss of tooth structure due a previous attempt to remove the separated instrument.
Case 3
Case presented with two separated instruments. First, smaller fragment was removed with ultrasonics alone. Second, larger fragment, required space created by ultrasonic and retrieved with Yellow Lasso (0.12mm).
Case 2
Single session retreatment in upper 1st premolar with separated instrument in palatal root. Captured with the Yellow Lasso (0.12mm).
Case 1
Exposure of separated instrument & create space around the fragment with ultrasonic tip. Used the Blue Lasso (0.10mm)