HBSS for Avulsed Teeth — NDEB AFK MCQ
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Correct answer: B — It is an ideal storage medium for avulsed teeth, preserving PDL cell viability for up to 24 hours
Hank's balanced salt solution (HBSS) is the gold standard storage medium for avulsed teeth because it maintains PDL cell viability for up to 24 hours due to its physiological pH (7.2-7.4), osmolality, and nutrient content. Save-A-Tooth (containing HBSS) is commercially available for this purpose. In order of preference for avulsed tooth storage: HBSS > cold milk > saline > saliva > water (worst, causes cell lysis). Dry storage is the most damaging.
Reference: IADT – Guidelines for Management of Traumatic Dental Injuries, 2020