The biocompatibility of temporary cements. Longitudinal in-vitro analyses of the pH values

In this longitudinal study the authors analyse the acid-basal characteristics in vitro of seven cements used in dentistry for a period of three weeks. The cements tested were subdivided into three groups based on their composition, whereas Life was presented separately since it is generally used as a sub-base for fillings in conservative treatment. All the materials studied alter the pH of the matter in which they are imbedded. Life and Tempbond present the highest and lowest pH values recorded during the study in vitro. The authors discuss the biological implications of these results.