Chlorhexidine Concentration — NDEB AFK MCQ
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Correct answer: D — 0.12%
Chlorhexidine digluconate 0.12% (e.g., Peridex, PerioGard) is the most commonly prescribed concentration in North American dental practice. In Europe, 0.2% is more common. The 0.12% concentration provides effective plaque and gingivitis reduction with acceptable side effects (staining, taste alteration). It is prescribed for post-surgical rinse (periodontal surgery, extractions, implant surgery), chemical plaque control when mechanical hygiene is compromised, and as an adjunct in NUG/NUP treatment. Typical regimen: 15 mL rinse for 30 seconds BID.
Reference: Newman – Newman and Carranza's Clinical Periodontology, 13th ed., 2019