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  • Author: Lucian Petcu x
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Preliminary Comparative Study on Patients with Mycoses -A Comparison Between Candida and Other Fungal Infections


The study aims at highlighting the differences in the main statistical parameters between two groups of patients diagnosed with mycosis, while monitoring the frequency of association with various other conditions.

Open access
In Vitro Assessment of Erosive Effects of Some Common Soft Drinks on Dental Hard Tissues


Background/Aim: The chemical nature of soft drinks is acidic, so they possess the capacity to cause hard tissue erosion. The aim of this study is to assess the potentially erosive effect linked to pH and titratable acidity of some common soft drinks on dental hard tissues in prolonged time exposure.

Material and Methods: Seven types of soft drinks in Romanian market were selected for this study. The pH and Titratable acidity were determined. Twenty one human dental hard tissue specimens were immersed in 5 ml solution each for 336h. Every 48h weight loss was determined for each specimen and after 336h volume changes were calculated. Enamel microhardness was determined using a Microhardness Tester model HV-1000 and compared to normal enamel microhardness.

Results: The pH values of beverages ranged from 2.37 to 3.1, showing no significant differences. All specimens presented color and surface texture modifications, weight loss and volume reduction. There were found significant differences between the mean values of weight loss and enamel microhardness of each type of specimens and type of beverages tested. The most representative findings were achieved by indentations done in specific zones on Sprite® immersed specimen. This result suggest that microhardness near the eroded surface was significant lower than in other zones.

Conclusions: Data obtained have shown that all the soft drinks tested had an erosive effect, causing dental hard tissue dissolution. For prolonged time exposure titratable acidity may be a major predictor for erosive potential. Dental erosion may affect different levels of enamel causing decreased enamel microhardness.

Open access
Multifactorial Analysis of Cardiovascular Risk Factors in a Group of Patients with Acute Myocardial Infarction


Background and Aims: Acute myocardial infarction is one of the main causes of mortality worldwide, atherosclerosis being the most common mechanism of coronary artery obstruction. Many cardiovascular (CV) risk factors are associated with these pathogenic processes. The aim of our study was to investigate a group of patients with ST-segment elevation acute myocardial infarction in terms of the prevalence of cardiovascular risk factors. Materials and Methods: We investigated 97 patients with acute myocardial infarction (AMI) and 30 persons without AMI (control group) for CV risk parameters (metabolic syndrome, diabetes, sedentary, dyslipidemia, glycosylated hemoglobin- HbA1c), and the risk of developing AMI. Results: We found statistically significant differences (p<0.05) for the patients with metabolic syndrome, diabetes, sedentary lifestyle, high level of total cholesterol, LDLc, HbA1c, low level of HDLc for the risk to develop AMI. Conclusion: This study emphasizes the need to implement measures of primary and secondary prevention, and carry out a strict control of cardiovascular risk factors as well as implicitly improve the therapeutic conduct.

Open access