Investigation in to the rate of knowledge and out break of diss phonie and its prophylaxis belaviors among the teachers of Yazd's elementary schools Summery

The quality of teacher’s voice has an important role in understanding lessons by the students. The roughness of the Noice is the most importantsign of darynx disease and one of the reasons of the spasm of Noice is the improper usage of the of the noice the object of this study is inverstigating rateof knowledge and prophydaxis behaviors from dissphoie and the rate of it’s outbreak in female teachers of Yazd’s elementary school.

This study is descriptive – analytie، and is done obout 280 teachers that were chosen from education areas casually. It used of questionnaire and interviewing for callectingdata.

The rate of dissphonie’s outbreak between the teacherswas 55. 4% and the most epidemic form was stiffness of larynx. The rate of teachers’ knowledge was in average. There was a meaning full relationship between education and the rate of knowledge. Everyone that had a course of studies for associate of arts diplona and higher than it، had the higher rate of knowledge. There was a statical relationship between the age and the signs of spasm of noice also، it was seen a meaningful relationship between the employment background and prophydaxis behaviors from dissphorue. There was a direct meaningful relationship between the rate of knowledge and praphydoxis behaviors، and the teachers who had the higher rate of knowledge، choose further praphydoxis behaviors between the teachers of Yazd’s elementary schools oven though the outbreak of this farm is high and it’s suggested by holding the educating classes، the rate of knowledge and performance of the teachers have been in creased for preventing and controlling this problem.