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Chlorhexidine is the evil Disney Villain of your Practice

1/6/2023

2 Comments

 
In most fairy tales, there’s a villain that gives the heroine what they desperately want – at a price. Ursula will give you legs, but at the cost of your voice. If you’re giving your patients chlorhexidine to fulfill a wish to kill bacteria, you've just been tricked by an evil villain. You’ve probably always detested the dark shadow (stain and calculus) that chlorhexidine casts upon your patients’ teeth. But these side effects are foreboding to more complicated rules and contraindications to the poor unfortunate souls who use it. What is chlorhexidine’s evil plan? Sure, she kills bacteria, but at what price? 
 
Limited to two weeks of use 
 
Ever notice in our favorite Disney movies that the villain’s spell is short? Like, unrealistically short. Until midnight… the 3rd day at sunset… you get the idea. With chlorhexidine’s narrow 14 day window, she offers little time to work her “magic”. Even for mild gingivitis (which is the only indicated use by the way, more on that in a moment)  tissue usually takes upwards of 30 days to start healing. Do we still need to worry about bacteria after two weeks? Of course. So what do we give them instead of chlorhexidine? 
 
Only indicated for gingivitis
 
Chlorhexidine tells us she can ONLY help patients with gingivitis. Has your practice ever used chlorhexidine off label? If so, you’re not alone. After all, it’s what we learned in school to kill bacteria. Since bacteria is a common enemy of  periodontal disease, implants, and extractions, it seems it would be suitable anywhere bacteria is at play. Chlorhexidine is actually contraindicated for all of those uses. It gets worse. Let us journey further into the dark forest of risks and limitations.
 
Inhibits Fibroblasts
 
Using chlorhexidine after SRP? Stop. According to a 1991 study conducted by Charles D. Alleyn, DDS(1): “Exposure of root surfaces to Chlorhexidine significantly inhibits subsequent fibroblast attachment which may interfere with regeneration of the periodontium.” Chlorhexidine all but halts the healing process. What’s most alarming is this study is over 20 years old, and practices still send SRP patients home with chlorhexidine, unaware of her consequences. 
 
Inactivated in Presence of Blood/Saliva
 
Yep, you heard that right. Like a true villain, chlorhexidine sets forth the ultimate double standard: she’ll kill bacteria in your patient's mouth- but not with blood or saliva present. As found in a 1990 study (2,3,4), this explains why chlorhexidine is of limited value in decontaminating the oral cavity. How do we avoid saliva in the mouth? We can’t. This contributes to why chlorhexidine is contraindicated for implants, extractions and periodontal disease.
 
Cytotoxic effects
 
Since 2006, we’ve been warned of the cytotoxic effects of chlorhexidine on cells and cautioned against her use. Does your practice rely on chlorhexidine as a pre-rinse? You just counteracted the positives of any antibacterial precautions with a high dose of cytotoxic effects. Furthermore, at 1,200 ppm this makes chlorhexidine obsolete as a post-op rinse choice.
 
Severe allergic reactions
 
Hypersensitivity is always a risk with chlorhexidine. Immediate allergic reactions are the most serious, but patients can also experience delayed reactions days or weeks later. (5)  To send a patient home with a rinse that has been documented to sometimes cause severe anaphylactic shock can be nerve wracking to say the least. The most unsettling documented cases both occurred with patients in the UK. In the first, a woman was killed in the dental chair after a fatal allergic reaction from pre-rinsing with chlorhexidine. In the second, an autopsy of a 63 year old male showed the cause of death to be an allergic reaction to chlorhexidine.
 
So, what is chlorhexidine’s evil plan? To deceive you into thinking she’s a friend to your practice and patients. Fortunately, there is an alternative whose mission is to make sure you never use chlorhexidine again. OraCare is the only other professional rinse choice. It kills the same bacteria as chlorhexidine at just 44 ppm, and without side effects: no staining, calculus buildup, or altered taste. What really makes this knight in shining armor are the additional benefits it provides: OraCare kills viruses & fungi, eliminates volatile sulfur compounds, and breaks up biofilm. OraCare is also safe for long term use, giving your patients a true ‘happily ever after’. 

2 Comments

    Kristin Goodfellow RDH

    Kristin is Chief Clinical Officer of OraCare, a practicing Registered Dental Hygienist 

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  • What Is OraCare?
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    • OraCare PPR (PreRinse)
    • OraCare Travel
    • OraCare Tongue Sweep
  • Why Use It
    • Studies >
      • Salus Research Study
    • Chlorhexidine Replacement
    • Bad Breath >
      • 30 Day Challenge
    • Bleeding Gums
    • Dry Mouth
    • Periodontal Disease
    • Cancer Care
    • Ortho
    • Fungal Infections
    • Post Op
  • How To Get It
    • Order
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