Otro
Evaluation of some properties of fermented milk beverages that affect the demineralization of dental enamel
Registro en:
Brazilian Oral Research, v. 24, n. 1, p. 95-101, 2010.
1806-8324
1807-3107
10.1590/S1806-83242010000100016
S1806-83242010000100016
2-s2.0-77955526226.pdf
2-s2.0-77955526226
0000-0002-8159-4853
Autor
Lodi, Carolina Simonetti
Sassaki, Kikue Takebayashi
Fraiz, Fabian Calixto
Delbem, Alberto Carlos Botazzo
Martinhon, Cleide Cristina Rodrigues
Resumen
The aim of this in vitro study was to evaluate the erosive capacity of fermented milk beverages, as well as some of their properties that affect the demineralization of dental enamel (pH, buffering capacity, fluoride, calcium and phosphorus contents). Three different batches of 6 commercial brands of fermented milk beverages were analyzed. pH evaluation was accomplished using a potentiometer. The buffering capacity was measured by adding 1 mol L -1 NaOH. Fluoride concentration was assessed by an ion specific electrode after hexamethyldisiloxane-facilitated diffusion, and calcium and phosphorus concentrations were assessed by a colorimetric test using a spectrophotometer. Sixty specimens of bovine enamel were randomly assigned to 6 groups (n = 10). They were exposed to 4 cycles of demineralization in the fermented milk and remineralization in artificial saliva. Enamel mineral loss was determined by surface microhardness (%SMHC) and profilometric tests. The samples' pH ranged from 3.51 to 3.87; the buffering capacity ranged from 470.8 to 804.2 μl of 1 mol L -1 NaOH; the fluoride concentration ranged from 0.027 to 0.958 μgF/g; the calcium concentration ranged from 0.4788 to 0.8175 mgCa/g; and the phosphorus concentration ranged from 0.2662 to 0.5043 mgP/g. The %SMHC ranged from-41.0 to -29.4. The enamel wear ranged from 0.15 μm to 0.18 μm. In this in vitro study, the fermented milk beverages did not promote erosion of the dental enamel, but rather only a superficial mineral loss.
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