We are using cookies to implement functions like login, shopping cart or language selection for this website. Furthermore we use Google Analytics to create anonymized statistical reports of the usage which creates Cookies too. You will find more information in our privacy policy.
OK, I agree I do not want Google Analytics-Cookies
Oral Health and Preventive Dentistry



Forgotten password?


Dear readers,

our online journals are moving. The new (and old) issues of all journals can be found at
In most cases you can log in there directly with your e-mail address and your current password. Otherwise we ask you to register again. Thank you very much.

Your Quintessence Publishing House
Oral Health Prev Dent 18 (2020), Open Access     12. Feb. 2020
Oral Health Prev Dent 18 (2020), Open Access  (12.02.2020)

Open Access ORAL MEDICINE, Online Article, Page 319-323, doi:10.3290/j.ohpd.a44034, PubMed:32618455

Online Article: Comparison of Fluoride Release in Conventional Glass-Ionomer Cements with a New Mechanical Mixing Cement
Morales-Valenzuela, Adriana A / Scougall-Vilchis, Rogelio J / Lara-Carrillo, Edith / Garcia-Contreras, Rene / Salmeron-Valdes, Elias N / Aguillón-Sol, Lizzeth
Purpose: The aim of this paper was to compare three conventional hand mixing glass-ionomer cements (GICs) and a new mechanical mixing glass-ionomer cement.
Materials and Methods: Samples were measured on days 1, 2, 6, 10, 31, 90 and 180. After 32 and 181 days of monitoring, the samples were recharged by using 1 ml of 2% sodium fluoride gel.
Results: The fluoride release started in high concentration during the first day for all GICs, with a value for GIII of 32.6 ppm. From the 2nd day, a slow, steady decline, with the exception of GII, which showed a marked decline to a value of 3.2 ppm. Analysis of variance (ANOVA) test showed statistically significant differences between the amounts of fluoride of the four materials in the first 24 h. Student t test was used to compare the fluoride release between the first and second recharge in each one of the study groups. Statistically significant differences were found when we compared the fluoride release in groups I (t = –16.95, p = 0.000) and IV (t = –2.644, p = 0.26).
Conclusions: A mechanical mixing was the material with the more constant fluoride release and after recharge showed the highest fluoride release which make it an important benefit for clinicians.

Keywords: anticariogenic agents, fluoride, glass-ionomer cement