Study of Factors Affecting Incidence of Patient’s Blood or Fluid Contamination, Needle Stick or Injury form Sharp Instrument in Dental Students at Faculty of Dentistry, Mahidol University.

Abstract

          The objiective of this study was to study factors that affect incidence of patient’s blood or fluid contamination, needle stick or injury form sharp instrument in dental students at Faculty of Dentistry, Mahidol University. The subject were undergraduate 4^th to 6^th year (n=328). Data were obtained by questionnaire and analyzed by mean, percentage, standard deviation and correlation by Fisher’s. The results were as follow female 71.30%, mean age 24.42 years, 6^th years student 34.10%, contaminated to patient’s blood or fluid, needle stick or injury form sharp instrument at 28.40%. Almost incidence take place at main clinic for 55.40%. Type of operative that course incidence were sharp burs cut hand at 36.97%, scaling and cleaning at 21.53%, root canal treatment at 13.95%, types of instrument that course incidence were dental bur at 36.79%, scaler hand instrument at 21.53%, and needle irrigation syringe at 13.95%. The incidence happen while the undergraduate student were treating patient at 50.00%, which blood contamination at 32.14%, the undergraduate student awared of the incidence protocol at 79.10%, but not follow the protocol aftrer incidence at 56.00%. The undergraduate student were trained for this incidence protocol at 73.80%. Organized from the infection control unit at 31.10%. Factors that related to the incidence were 1) dental student were in a limited clinical period and were rushing and negligence 2) disposal of sharp instrument were limited 3) limited field of operation lighting, which related to these incidence statistically significant difference at the 0.05 level.