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Showing 2 results for daneshkazemi

Abdolrahim Davari, Alireza Daneshkazemi, Ghasem Dastjerdi, Zahra Borhan, Sanaz Abbasi,
Volume 9, Issue 2 (5-2021)
Abstract

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.

Abdolrahim Davari, Alireza Daneshkazemi, Farnaz Farahat, Elham Motallebi, Sepideh Abbasi,
Volume 9, Issue 2 (5-2021)
Abstract

Background and Objective: Tooth bleaching changes the microhardness and mineral content and color of the tooth. The present study aimed to evaluate the effect of carbamide peroxide on microhardness, mineral content and color change in white spot lesions.
Material and Methods: Thirty-two samples were selected without caries, cracks and stains, and immersed in 0.5% chloramine-T for one week. Then the tooth crowns were separated. The teeth were artificially decayed by pH cycling. For bleaching on the enamel, a coating of 10% carbamide peroxide gel with a thickness of 1 mm was used for 8 hours. Samples were stored in artificial saliva for 16 hours. Bleaching process lasted for 14 days. Microhardness, color changes, calcium and phosphorus levels were measured before and after bleaching. Paired t-test and one-sample test were used to analyze the data.
Results: The microhardness test results were 338.02± 90.15 and 320.94±87.41 before and after bleaching, respectively. microhardness of the samples significantly decreased after bleaching compared to before bleaching (P<0.001). Calcium and phosphorus content in samples after bleaching was not significantly different from before bleaching (P>0.05). The mean color change coefficient (∆E) after bleaching was 6.82±3.96. ∆E in the studied samples was significantly higher than the standard (∆E =3.3).
Conclusion: Bleaching with 10% carbamide peroxide significantly reduced microhardness. There was no change in the mineral content of the enamel and color change was proper. It can be concluded from this study that bleaching with carbamide peroxide can be successful.


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