Effect of Different Preparations of Fluoride Gel on Salivary pH of Albino Rats

Abstract Objective: To evaluate the effect of different preparations of fluoride gels on the salivary pH of albino rats. Material and Methods: This experimental study consisted of 40 Albino rats randomly divided into four equal groups. Group A was the control group and received no intervention. Experimental group B received a topical application of 0.2% sodium fluoride gel. Experimental group C received topical application of stannous fluoride gel 0.4%. Experimental group D received topical application of APF gel (1.23% acidulated phosphate fluoride gel). The different preparations of the gels were applied once daily for 4 minutes on the occlusal surface of the right maxillary molars for 14 days. Salivary pH values were recorded immediately after the application of gels with the help of pH paper on day 1 and day 14. Results: There was a significant difference in the pH level of groups B, C and D after 14 days of fluoride application (p < 0.05). The non-parametric Kruskal Wallis test was applied for the comparison between the groups. Conclusion: This study concluded that all the fluoride gels after administration caused the acidic pH of saliva with the most acidic effect produced by APF gel (AU).

Acute blood transfusion reaction in a tertiary care hospital in Southern Punjab, Pakistan

Background: Blood transfusion is a lifesaving process but carries many risks. Majority of these had been reduced with better diagnostic and management strategies. But the risk of non-infectious adverse transfusion reactions though reduced but cannot be eliminated. Hemovigilance is the system to monitor such reactions.Methods: The objective of current study was to know the frequency of adverse transfusion reactions and to compare it with local and international data. Retrospective cross-sectional descriptive study was done in Ibn-e- Sina hospital. Adverse transfusion reactions reported to blood bank was analysed according to hospital protocol.Results: Out of 6050 blood transfusions 23 (0.38%) develop adverse transfusion reactions. Febrile nonhemolytic transfusion reaction was the commonest adverse event and whole blood was the component implicated.Conclusions: Adverse transfusion reactions are non-infectious complications of blood transfusion which in spite of all efforts cannot be avoided. Frequency of adverse transfusion reactions in our study was 0.38% and Febrile nonhemolytic transfusion reaction was commonest reported reaction type. Hemovigilance system is necessary to monitor, investigate and control such activities.