The overall risk factors related to dentist and nurse is the risk of blood, fecal and infectious disease contact. Preventive training protocols or standards are usually articulated related to high caution with blood. Disease such as HIV, Ebola and hepatitis can be problematic with high patient contact. Protocols for pediatric dental care can be found through a search on the website try to access the link provided below.
http://www.aapd.org/media/Policies_Guidelines/G_CariesRiskAssessment.pdf and second protocol is related to the transmission of Ebola http://www.cdc.gov/vhf/ebola/hcp/infection-prevention-and-control-recommendations.html
Marwa, is there something more specific you are exploring? The risk factors are dependent on many factors including inflectional control policies, personal behavior among practitioners, Proper use of PPE (personal protective equipment) and available infection control equipment (cleaning, sterilization, etc.). Exposure to blood and body fluids are certainly risk factors, but injury and violence may be factors in some settings. Many nurses develop back and neck problems from bending and lifting frequently over long periods of time, or are assaulted by intoxicated or delirious patients.
The major factors related to dentist and nurse is the risk of infection blood, fecal and infectious disease contact. Disease such as HIV, hepatitis other blood born diseases like Ebola can be problematic with high patient contact in addition there is physical risk, whatever a training for its preventive measure is there, it is unavoidable.
Marwa, i am only addressing nursing here, but there are multiple risk factors arising from different categories. I believe the respondents above have addresse infectious illness adequately but there are many other areas of risk for nurses. Nurses are the most frequently assaulted and injured by patients and others of all healthcare professionals. Injury from assault is particularly alarming in psychiatry, emergency departments and I C U's. Additionally, nurses have a very high rate of orthopedic injury related to the physical burden of their work. Back injury and shoulder injuries are common and often result in permanent disability. Additionally, nurses are prone to illnesses related to high stress such as hypertension, migraines etc. due to the logistical requirements of working nights, extended hours and in emergency situations.