Research Article
Nano-Hydroxyapatite Gel and Its Effects on Remineralization of Artificial Carious Lesions
Figure 2
(a) Mean and standard deviation of hardness at baseline (HB), hardness upon acid-activated demineralized process (HD), and hardness upon administration of the remineralizing agent (HA); (b) difference of hardness upon acid-activated demineralization and after application of remineralizing agents (HAD-diff = HA − HD); (c) percentage of hardness recovery (%HR); and (d) microscopic crystal structure of each group treated with fluoride varnish (FV), nano-hydroxyapatite toothpaste (NHT), 20% nano-hydroxyapatite gel (20% NHG), and 30% nano-hydroxyapatite gel (30% NHG) compared to no treated group (NT).
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