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char = s;code = 115
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char = i;code = 105
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char = i;code = 105
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char = .;code = 46
result sql = Influence of mixing vehicle on dissociation of calcium hydroxide in solution.
Influence of mixing vehicle on dissociation of calcium hydroxide in solution.
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char = f;code = 102
char = e;code = 101
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char = s;code = 115
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char = n;code = 110
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char = s;code = 115
char = o;code = 111
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char = i;code = 105
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char = i;code = 105
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char = T;code = 84
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char = r;code = 114
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char = s;code = 115
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char = ;code = 32
char = t;code = 116
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char = a;code = 97
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char = m;code = 109
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char = i;code = 105
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char = e;code = 101
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char = l;code = 108
char = i;code = 105
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char = a;code = 97
char = t;code = 116
char = e;code = 101
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char = p;code = 112
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char = a;code = 97
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char = e;code = 101
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char = a;code = 97
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char = l;code = 108
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char = e;code = 101
char = n;code = 110
char = c;code = 99
char = e;code = 101
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char = o;code = 111
char = f;code = 102
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char = l;code = 108
char = c;code = 99
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char = c;code = 99
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char = a;code = 97
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char = ;code = 32
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result sql = The antimicrobial effects of aqueous preparations of calcium hydroxide have been demonstrated in the past. Calcium hydroxide, when dissolved in water, dissociates into hydroxide and calcium ions. The presence of hydroxide ions in a solution makes it antimicrobial. Recently it was shown that the use of glycerin as a mixing vehicle facilitates placement of calcium hydroxide in the root canals. The influence of nonaqueous mixing vehicles on the dissociation of calcium hydroxide is not clearly understood. In this study the conductivity of aqueous and nonaqueous solutions of calcium hydroxide was measured. The conductivity values for saturated solutions of calcium hydroxide in water was 7.3+/-3 mS/cm. The conductivity of calcium hydroxide in pure glycerin or propylene glycol was essentially zero. It was concluded that use of nonaqueous mixing vehicles may impede the effectiveness of calcium hydroxide as a root canal dressing.

Publication: J Endod 2000 Nov ;26(11)::649-51.
Publication Date: 2000 Nov
Study Author(s): Safavi, K;Nakayama, T A;
Institution: Department of Endodontology, School of Dental Medicine, University of Connecticut Health Center, Farmington 06030-1715, USA.
Shortcut link to this study:
The antimicrobial effects of aqueous preparations of calcium hydroxide have been demonstrated in the past. Calcium hydroxide, when dissolved in water, dissociates into hydroxide and calcium ions. The presence of hydroxide ions in a solution makes it antimicrobial. Recently it was shown that the use of glycerin as a mixing vehicle facilitates placement of calcium hydroxide in the root canals. The influence of nonaqueous mixing vehicles on the dissociation of calcium hydroxide is not clearly understood. In this study the conductivity of aqueous and nonaqueous solutions of calcium hydroxide was measured. The conductivity values for saturated solutions of calcium hydroxide in water was 7.3+/-3 mS/cm. The conductivity of calcium hydroxide in pure glycerin or propylene glycol was essentially zero. It was concluded that use of nonaqueous mixing vehicles may impede the effectiveness of calcium hydroxide as a root canal dressing.
PMID: 11469293

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