Pilot study:
The pilot study was done on 20 students who were excluded from the total number of the study subjects. The aim of the pilot was to identify the applicability of the tools and assess students' acceptance and understanding of the tools. Some questions were omitted, and some statements were modified. Also, younger students who can't write were assisted by the researcher team. A confidential letter was sent to parents of the positive infestation students coupled with a simple brochure explaining in colored drawing how to , treat and prevent the infestation.