Summary. While the left side of the heart becomes too weak to squeeze regular volumes of blood out of the heart when it pumps, this is known as systolic heart failure. Diastolic heart failure develops when the left side of the heart becomes too rigid to relax and fill with blood regularly.
-Patient to dental team: Direct contact, droplet infection, inderect contact
-Dental team to patient: droplet infection
-Patient to patient: contaminated instruments
-Dental office to community: Contaminated impressions or equipment.
-Community to Dental office to Patient: Municipal water
PS: I only could think of these...so yea your welcome :0
I believe your answer is the portal of exit