En el presente trabajo de investigación, fueron utilizados 42 dientes (21 deciduos y 21 permanentes), distribuidos en tres grupos de prueba y un grupo control. Los 42 dientes fueron expuestos a una bebida carbonatada ácida, a tres frecuencias distintas (1, 3 y 6 veces por día), con la finalidad de determinar si a mayor frecuencia de exposición a la bebida, mayor es la pérdida de calcio en el esmalte dentario. / -- In the present investigation, 42 teeth were used (21 deciduos and 21 permanent ones), distributed in three groups of test and a control group. The 42 teeth were exhibited to a carbonated acid drink, to three different frequencies (1, 3 and 6 times per day), in order to determine if to greater frequency of exhibition to the drink, major is the loss of calcium in the dental enamel. In order to carry out the quantitative analysis of lost calcium by the enamel, tests of fotoespectrometry of atomic absorption of calcium were carried out, in the Unit of Services and Chemical analyses of the Faculty of Chemistry and Chemical Engineering of the UNMSN.

En el presente trabajo de investigación, fueron utilizados 42 dientes (21 deciduos y 21 permanentes), distribuidos en tres grupos de prueba y un grupo control. Los 42 dientes fueron expuestos a una bebida carbonatada ácida, a tres frecuencias distintas (1, 3 y 6 veces por día), con la finalidad de determinar si a mayor frecuencia de exposición a la bebida, mayor es la pérdida de calcio en el esmalte dentario. / In the present investigation, 42 teeth were used (21 deciduos and 21 permanent ones), distributed in three groups of test and a control group. The 42 teeth were exhibited to a carbonated acid drink, to three different frequencies (1, 3 and 6 times per day), in order to determine if to greater frequency of exhibition to the drink, major is the loss of calcium in the dental enamel. In order to carry out the quantitative analysis of lost calcium by the enamel, tests of fotoespectrometry of atomic absorption of calcium were carried out, in the Unit of Services and Chemical analyses of the Faculty of Chemistry and Chemical Engineering of the UNMSN.