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Reduction in dentin permeability using mildly supersaturated calcium phosphate solutions



Ai-Shuan(Maria) Cherng, Laurence C. Chow, Shozo Takagi


Treatments that obdurate dentin tubules have been used for reducing dentin hypersensitivity. The objective of this study was to determine the effects of multiple treatments with a mildly supersaturated calcium phosphate solution on the hydraulic conductance (Lp) of partially occluded dentin discs in vitro. The treatment solution contained 6.5 mmol/L (mM) each of calcium and phosphate, 0.25 mM fluoride, 30 mM KCl, and 50 mM HEPES buffer (pH adjusted to 7.0). The mean baseline Lp (in L cm-2 min-1 H2O cm-1) was 0.108 0.041 (mean s.d.; n = 9), and after five consecutive treatments, the mean relative Lp, presented as % of baseline, were 71 11, 58 10, 46 18, 40 14, and 25 10, respectively. The Lp values of the baseline and treatment groups were significantly (p
Archives of Oral Biology


Calcium phosphate, dentin permeability, multiple treatments, smear layer, tubule obturation


Cherng, A. , Chow, L. and Takagi, S. (2004), Reduction in dentin permeability using mildly supersaturated calcium phosphate solutions, Archives of Oral Biology, [online], (Accessed April 23, 2024)
Created February 1, 2004, Updated February 17, 2017