Mixing chlorhexidine and sodium hypochlorite forms a precipitate called parachloroaniline (PCA). It is orange-brown in color and, in theory, could compromise the treatment. The compound has also been shown to be toxic and classified as a carcinogen.
Can you irrigate with both of these solutions in one tooth? Sure, just don’t mix them directly. You can irrigate with EDTA or alcohol after the sodium hypochlorite and prior to the chlorhexidine.
The point is to avoid chlorhexidine and hypochlorite from coming in direct contact.
More info here.
Thank you for Dr. McCormick in Mauston for posing the question. We felt it was worth sharing. If you have a particular topic or question don’t hesitate to ask. Thanks Mick!
2TheApex: Not any more (as of today)
Effective today any medication containing Hydrocodone is Reclassified as Schedule II. Yes, Hydrocodone combined with Tylenol is now Schedule II. (Click here for the DEA ruling on this) This means you CANNOT give an oral order for Hydrocodone. The pharmacy will need a physical prescription brought in to the pharmacy. Back to writing (or printing) and signing paper again. No more phoning it in unless it’s an “emergency.” Click below for the rules in our area.
Wisconsin Minnesota Iowa
Weekend pain control after October 6, 2014. First determine the patients pain level and how they are currently trying to control it. Sometimes patients are inadvertently doing things to make the pain worse. (Like placing ice on an swelling caused by infection) Be sure they are taking OTC pain medications properly. Taking 800 mg Ibuprofen every six hours with an Extra Strength Tylenol (500 mg) staggered between the Ibuprofen can manage most pain we encounter.
Other options: Call in for Schedule III (Tylenol III) or call Hydrocodone in as an “emergency” and most states will allow you 7 days to get them a physical prescription.
Another medication that works well for dental pain is Ultram (Tramadol) Schedule IV
If you think the pain source is primarily inflammatory a Medrol dose pack can be very effective.
When prescribing, the patient’s heath history is paramount as well as current medications and allergies. A proper diagnosis is always critical to managing a patient’s pain.
What do you plan to prescribe for a patient, if needed, after hours?