RESUMO
The objectives of the study were to find out the risks of needle stick injury and to identify who sustained such injuries and under what circumstances and what actions were taken to minimize the risks of needle stick injuries among dental students, house officers and para dental staff working at Liaquat Medical University Hospital. It was carried out from Aug 2011 to Sept 2012. Information was obtained through Questionare. Study design was descriptive. 513 students, house officers andparaden-tal staff participated in this study. House officers 23[4%] were male and 57 [11%] were female. Male students were 102 [20%] and female were 223[44%]. Among Paradental staff male were 92[18%] and female 16 [3%], and they suffered 79[10%] injuries. Self inflicted injuries were 455 [58%] and through other persons 315 [41%]. Department-wise injuries were Operativel 140 [18%], Prosthodontic 25[3%]. Orthodontic 28 [3%]. periodontology. 27[3%], Oral Maxillofacial Surgery 97[12%]. Through block anesthesia 428 [55%] and through infiltration needle 345 [44%]. Students were at high risk