Viability and Alkaline Phosphatase Activity of Human Dental Pulp Cells after Exposure to Yellowfin Tuna Bone-Derived Hydroxyapatite In Vitro

Figure 2

Morphology and cell density of the pulp cell culture after 72 hours stained with ethidium bromide-acridine orange: (a) untreated cells (control); (b) treated with 200 μg/ml THA. The group treated with 200 mg/ml THA demonstrated higher cell density (b) than the untreated group (a).

(a)

(b)