Research Article

The Effectiveness of Remineralizing Agents on Dentinal Permeability

Figure 5

SEM images (3500x) and EDX spectra of dentine surfaces following the application of remineralizing agents for 10 minutes. (a) The surface of acid etched dentine samples treated by GC Tooth Mousse Plus demonstrated layers of granular deposits with a cobble stone appearance occluding dentinal tubular orifice with few vacant tubular orifices visible. EDX spectra revealed the prevalent content of Ca and P. (b) Clinpro White Varnish on dentine surface resulted in dentine tubule occlusion covering the entire dentine surface with a fine hexagonal crystal layer, whereas EDX spectra revealed high content of Ca and P. (c) Duraphat Varnish application created a finely crystalline surface masking all the dentine tubule orifices. No open tubule orifices were observed. Low levels of Ca were observed on EDX analysis. (d) Colgate Sensitive Pro-Relief dentifrice application produced a layer of finely coarse granular precipitates masking the dentine surface but only few open tubules were apparent. EDX analysis revealed high content of Ca. (e) Biodentine demonstrated different size and shape of mineral particles covering the entire surface of dentine leaving few vacant orifices of dentinal tubule. EDX analysis revealed high content of Ca.
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