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Borhan Mansouri, Namamali Azadi, Yazdan Habibi,
Volume 3, Issue 2 (10-2015)

Background and Objective: The industrial development along with the rising in human population has led to releasing considerable hazardous materials such as heavy metals into the environment. Environmental pollution by heavy metals can in turn threaten the human health. Therefore, the aim of this study was to assess the concentration levels of some heavy metals including; Cd, Pb, Cr and Cu, as well as to estimate the physico-chemical parameters of drinking water distribution network of Sanandaj city in 2014.

Methods: In order to accomplish the present descriptive study, 18 samples were collected from the water distribution network of Sanandaj during 2014. The level of heavy metals were assayed by using a graphite furnace atomic absorption (Phoenix 986). The standard approaches mentioned in the standard method book were used to measure the fluoride, nitrate and hardness of water. The Pearson Correlation test was used to estimate the association between parameters.

Results: The mean concentrations of Cd, Pb, Cr and Cu were found to be 0.0004, 0.011, 0.03, 0.3 mg/L respectively. Moreover, the mean levels of fluoride, nitrate, and total hardness were 0.11, 6.57, and 166 mg/L respectively. The level of Hazard Quotient in this study was lower than 1 (HQ < 1).

Conclusion: The concentration of all heavy metals in this study were lower than the national and international thresholds of drinking water. It is concluded that Sanandaj drinking water is safe to drink concerning health issues.  

Abdolrahim Davari, Alireza Daneshkazemi, Ghasem Dastjerdi, Zahra Borhan, Sanaz Abbasi,
Volume 9, Issue 2 (6-2021)

Background and Objective: Oral health affects physical and mental health, growth, enjoyment and community. Anxiety and depression can lead to tooth decay, thereby indirectly affecting the periodontal health of people. Those who experience mental illness also suffer from poor oral health and do not adherence with oral health instructions. Mental illness leads to fear, unhealthy habits, and distrust of dentists, each of which alone affects oral and dental health. This study aimed to evaluate the DMFT-affecting mental diseases in adults in Shahedieh in a cohort study in 2016.
Material and Methods: In this prospective cohort study, Shahedieh cohort plan was used to collect the research data. Different psychological variables such as the history of these diseases, the drugs used in these patients, and the current incidence of mental illness were extracted from the especial Yazd Shahedieh cohort questionnaire. Oral health status in the participants was estimated based on the DMF index for permanent teeth in the participants. Mean, percentage, and standard deviation was performed to describe descriptive data, as well as Chi-square, t-test, and ANOVA, Regression. In addition, a P-value of less than 0.05 was considered statistically significant.
Results: In the present study, total, 9967 subjects were enrolled in the study, 5028 of whom were men and 4939 were women. No significant difference was observed between the male and female participants regarding the number of decayed (p=0.14) and missing teeth (p=0.24) and DMFT index (p=0.69). There was no significant relationship between age and DMFT indexes. No correlation was observed between the level of education and DMFT index (p=0.147). There was no significant relationship between DMFT index and psychological disorders (depression [P=0.19]), other psychiatric diseases [P= 0.32]), mental health care (depression treatment [P=0.45] and treatment of other psychiatric diseases [P=0.97].)
Conclusion: According to the results of the study, no significant relationship was found between the DMFT index based on the mental and psychological profiles of the subjects.

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