Study Notes

Systemic Antibiotics Most photosensitizing: Doxycycline Only one causing tooth discoloration: Minocycline Local Drug Delivery Atridox: Doxycycline Arestin: Minocycline Elyzol: Metronidazole Periochip: Chlorhexidine Actisite: Tetracycline Host Modulation SDD (Sub – antimicrobial Dose Doxycycline): Only FDA – approved host modulating agent…

CROSS INFECTION AND STERLIZATION IN DENTISTRY Cross infection is defined as the transmission of infectious agents amongst patients and staff with in hospital environment. Routes of Infection  Two routes are important : transdermal  and respiratory.   In transdermal route microorganisms enter the tissues of the recipient by means of injection through intact skin or mucosa (usually due to an accident involving a sharp instrument) or via d…

Hormones are carried by the blood throughout the entire body, yet they affect only certain cells.  The specific cells that respond to a given hormone have receptor sites for that hormone.     This is sort of a lock and key mechanism.  If the key fits the lock, then the door will open.  If a hormone fits the receptor site, then there will be an effect.  If a hormone and a receptor site do not match, then there is no reaction. &nbsp…

The Bicarbonate Buffer System This is the main extracellular buffer system which (also) provides a means for the necessary removal of the CO2 produced by tissue metabolism. The bicarbonate buffer system is the main buffer in blood plasma and consists of carbonic acid as proton donor and bicarbonate as proton acceptor :  H2CO3 = H+ + HCO3– If there is a change in the ratio in favour of H2CO3, acidosis results. This change can result from a de…