1.6mm Erlangen sialendoscope – note markings each 1cm apart. Comfortable removal of calculi upto 6mm.
2 contraindications : Intraglandular calculi and mega stone.
Presence of calculi for a long time causes multiple infective episodes which results in a fibrotic gland. At this stage gland will not function even after calculi removal.
Removal of stone upto 1yr after formation will restore function. Function of gland can be lost due to repeated infective episodes.