Practice and problems regarding oral hygiene: study among female medical undergraduate students of tertiary care hospital, Pune, India

Background:As a health provider to community, a doctor should himself be aware of his oral health and undergraduate medical students who are future health professionals should also be well aware of their dental hygiene. Hence with an aim to assess the practice and problems about dental hygiene amongst female medical undergraduate students, this study was planned. Objective of the study was to assess the practices and problems regarding oral hygiene among female undergraduate medical students and efforts taken by them to solve these problems.Method: A cross-sectional study was undertaken among female undergraduate medical students residing in a hostel of a medical college.Results: 56.7% girls were using soft tooth brush, 69.3% students change their tooth brush every 6 monthly and 63.3% of them were brushing only once in a day. 79.3% were rinsing teeth after snack or meal. The percentage of students who were using mouth wash and tongue cleaner was 27.3% and 52% respectively. Bad breath was faced by only 9.33% of students, 39.33% were having cavities and 49.33% were having problem of plaque. 25.3% had never visited dentist. Scaling was performed by only 24.7% students and among them only 1.33% did it 6 monthly. It was observed that students using mouth wash 22.2% had significantly less problem of bad breath as compared to students who were not using 6.7%. Significantly larger numbers of students, with problem of cavities were observed to use mouth wash 60% and floss 68% as compared to those who did had this complaint.Conclusion: The study highlights the fact that preventive behaviour among medical students increased after they experienced some or the other oral health problem for which they were advised to follow these preventive practices so that the severity and extent of the disease does not progress. Further research is required on a larger scale so that the ways to increase the promotive and preventive oral health practices can be identified (e.g. behaviour change communication) to prevent the occurrence of oral health problems.

Substance use among females –Study from Rural Western India

Background: Substance abuse is a common health problem which affects individual and takes a toll on not only person consuming it rather all members of society related to that person. Aim & Objective: The purpose of study was to determine the prevalence of substance use among females & to know the reasons for same and association of socio-demographic profile and substance use. Settings and Design: Cross-sectional study was conducted among females attending OPD at rural health training centre of a medical college for 6months duration. Total 500 females were interviewed for same by convenience sampling. Methods and Material: After taking informed consent from participants all the information was collected on predesigned and pretested oral questionnaire. Statistical analysis used: Qualitative Data was presented in the form of numbers and percentages. Test of significance such as chi-square was applied. Statistical analysis was done using MedCalc version 19.1 and Epi-info7. Results: Prevalence of substance use was found very high as 74%. Most common form of substance use was tobacco chewing at 77.03%. Abuse was maximum among females educated up to primary level (82.3%). Near about 72.7% were using substance out of curiosity. 84.32% were interested in quitting abuse. Conclusions: Substance use prevalence was very high affecting health of females adversely

Charge transport mechanisms in monovalent doped mixed valent manganites

Abstract In this communication, we report the results of the studies on structural and transport properties of monovalent Na + doped La 1-x Na x MnO 3 (LNMO; x = 0.00, 0.05, 0.10, 0.15, 0.20, 0.25 and 0.30) manganites synthesized by conventional ceramic method. X-ray diffraction (XRD) and Rietveld refinements reveal the single phasic nature of LNMO manganites without any detectable impurity within the measurement range. Temperature dependent resistivity, under different applied magnetic fields, has been performed on LNMO samples. Samples understudy exhibit metal to insulator (semiconductor) transition at temperature T P which is strongly influenced by the substitution of Na + at La 3+ site. -T plots also exhibit resistivity upturn behavior at low temperature well below 40K under all the applied fields. Variation in T P and resistivity has been discussed in the context of the competition between the transport favoring tolerance factor and zener double exchange (ZDE) mechanism and transport degrading Jahn-Teller (JT) and size variance effects. In order to understand the mechanisms responsible for the charge transport in metallic and semiconducting regions and to explore the possible electronic processes responsible for the observed low temperature resistivity minima in all the presently studied LNMO manganites, various models have been employed. It has been found that VRH mechanism gets successfully fitted to the resistivity data in the semiconducting region while ZDE polynomial law is responsible for the charge conduction in metallic region for all the presently studied LNMO samples. A strong dependence of activation energy on the Na + -content as well as applied magnetic field has been discussed in the context of variation and interrelations between the structural parameters. Charge conduction in metallic region has been discussed in the light of electron-phonon interactions which is influenced by the Na + -content and applied magnetic field. Electrostatic blockade model has been employed to understand the low temperature resistivity minima behavior. Blocking energy for the charge carriers shows a dependence on the magnetic energy provided to the charge carriers. Present study can be useful to understand and to control the charge conduction in the manganites and hence to design the manganite based thin film devices for various spintronic applications