Pub Date : 2011-01-01DOI: 10.30476/DENTJODS.2019.43597
M. Shirzaii
A case of oral submucous fibrosis (OSF) occurring in a 1 5-year-old Iranian boy is reported. This case is associated with chewing of Supari for a long ti-me. The close association between areca nut chewing and development of OSF with a risk of oral cancer has been demonstrated in many studies. The-re is no cure for OSF. Education and prevention seem to be the only way to reduce the risk of OSF. This article reviews the etiology, clinical presentation and treatment plan of OSF. This case reveals a correlation between the regular use of Supari (which contains areca nut) and OSF. This association has already been reported among Indian children but in Iran it has not still been reported. KEY WORDS: Oral- Submucous; Fibrosis;Supari-betelnut
{"title":"Oral Submucous Fibrosis in a 15-year-old Boy: The First Case Report in Iran","authors":"M. Shirzaii","doi":"10.30476/DENTJODS.2019.43597","DOIUrl":"https://doi.org/10.30476/DENTJODS.2019.43597","url":null,"abstract":"A case of oral submucous fibrosis (OSF) occurring in a 1 5-year-old Iranian boy is reported. This case is associated with chewing of Supari for a long ti-me. The close association between areca nut chewing and development of OSF with a risk of oral cancer has been demonstrated in many studies. The-re is no cure for OSF. Education and prevention seem to be the only way to reduce the risk of OSF. This article reviews the etiology, clinical presentation and treatment plan of OSF. This case reveals a correlation between the regular use of Supari (which contains areca nut) and OSF. This association has already been reported among Indian children but in Iran it has not still been reported. KEY WORDS: Oral- Submucous; Fibrosis;Supari-betelnut","PeriodicalId":15562,"journal":{"name":"Journal of Dentistry, Shiraz University of Medical Sciences","volume":"6 1","pages":"51-55"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91529414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-01-01DOI: 10.30476/DENTJODS.2019.43593
S. Kia, Mahnaz Sahebjamee, G. Mighani, S. M. Hazrati, Z. T. Ekrad, M. Vahedi
Statement of Problem: Oral lichen planus (OLP) is a cell-mediated immune condition for which several topical and systemic treatments are available. Purpose: The purpose of this study was to evaluate the efficacy of G2 vaccine on treatment of OLP. Materials and Methods: Ten OLP patients (7 females, 3 males) were enrolled in this study. Diagnosis of OLP was based on the clinical criteria and histological study. The patients received subcutaneous injection of 0.4 cc of G2 vaccine, once a week for twelve weeks. Oral symptoms before and after treatment were assessed by visual analogue scale. The data were analyzed, using student's t-test. Results: In this study, improvement in the lesion size was observed in the majority of the patients (good for 3 and poor for 5) while two patients showed no changes and no complete response was observed. The patients' symptoms (pain / burning) decreased significantly ( p =0.01). The CD4+ count and CD4+/CD8+ ratio was increased after therapy. Conclusion: The present study indicated that the patients’ symptoms were decreased simultaneously with the increase in CD4+counts and rise in CD4+/CD8+ ratio after inoculation of G2 vaccine. The findings suggest further studies with more sample size and also assessment of more types of cytokines for evaluation of the efficacy of G2 vaccine.
{"title":"THE IMPACT OF IMMUNOTHERAPEUTIC G2 VACCINE ON TREATMENT OF ORAL LICHEN PLANUS","authors":"S. Kia, Mahnaz Sahebjamee, G. Mighani, S. M. Hazrati, Z. T. Ekrad, M. Vahedi","doi":"10.30476/DENTJODS.2019.43593","DOIUrl":"https://doi.org/10.30476/DENTJODS.2019.43593","url":null,"abstract":"Statement of Problem: Oral lichen planus (OLP) is a cell-mediated immune condition for which several topical and systemic treatments are available. Purpose: The purpose of this study was to evaluate the efficacy of G2 vaccine on treatment of OLP. Materials and Methods: Ten OLP patients (7 females, 3 males) were enrolled in this study. Diagnosis of OLP was based on the clinical criteria and histological study. The patients received subcutaneous injection of 0.4 cc of G2 vaccine, once a week for twelve weeks. Oral symptoms before and after treatment were assessed by visual analogue scale. The data were analyzed, using student's t-test. Results: In this study, improvement in the lesion size was observed in the majority of the patients (good for 3 and poor for 5) while two patients showed no changes and no complete response was observed. The patients' symptoms (pain / burning) decreased significantly ( p =0.01). The CD4+ count and CD4+/CD8+ ratio was increased after therapy. Conclusion: The present study indicated that the patients’ symptoms were decreased simultaneously with the increase in CD4+counts and rise in CD4+/CD8+ ratio after inoculation of G2 vaccine. The findings suggest further studies with more sample size and also assessment of more types of cytokines for evaluation of the efficacy of G2 vaccine.","PeriodicalId":15562,"journal":{"name":"Journal of Dentistry, Shiraz University of Medical Sciences","volume":"46 1","pages":"29-34"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80494741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-01-01DOI: 10.30476/DENTJODS.2019.43598
A. Safari, M. Motamedi, M. Vojdani
Statement of Problem: Bruxism is an oral habit consisting of involuntary rhythmic or spasmodic nonfunctional gnashing, grinding, or clenching of teeth, in other than chewing movements of the mandible, which may lead to occlusal trauma, tooth wear and fracture of the teeth. It would be useful to determine the relationship between occlusal interferences and bruxism in order to prevent its development by occlusal interference adjustment. Purpose: This study evaluates the relationship between occlusal interferences and bruxism. Materials and Methods: For this study, 59 subjects (22 males and 37 females) including 28 bruxers and 31 nonbruxers were selected after filling a questionnaire based on the exclusion criteria. Occlusal interferences in the centric relation and eccentric movements in the two groups were evaluated and recorded. Data were analyzed by SPSS software (Version 16) using Chi-square test. Results: The results showed that there was a statistically significant relationship between bruxism and protrusive interferences ( p 0.05). Conclusion: According to the results of this study, due to the relationship between some types of occlusal interferences (protrusive interferences) and bruxism, it would be useful to examine occlusal contacts in bruxing patients to eliminate probable causative or contributing occlusal factors.
{"title":"Evaluation of the Relationship between Occlusal Interference and Bruxism","authors":"A. Safari, M. Motamedi, M. Vojdani","doi":"10.30476/DENTJODS.2019.43598","DOIUrl":"https://doi.org/10.30476/DENTJODS.2019.43598","url":null,"abstract":"Statement of Problem: Bruxism is an oral habit consisting of involuntary rhythmic or spasmodic nonfunctional gnashing, grinding, or clenching of teeth, in other than chewing movements of the mandible, which may lead to occlusal trauma, tooth wear and fracture of the teeth. It would be useful to determine the relationship between occlusal interferences and bruxism in order to prevent its development by occlusal interference adjustment. Purpose: This study evaluates the relationship between occlusal interferences and bruxism. Materials and Methods: For this study, 59 subjects (22 males and 37 females) including 28 bruxers and 31 nonbruxers were selected after filling a questionnaire based on the exclusion criteria. Occlusal interferences in the centric relation and eccentric movements in the two groups were evaluated and recorded. Data were analyzed by SPSS software (Version 16) using Chi-square test. Results: The results showed that there was a statistically significant relationship between bruxism and protrusive interferences ( p 0.05). Conclusion: According to the results of this study, due to the relationship between some types of occlusal interferences (protrusive interferences) and bruxism, it would be useful to examine occlusal contacts in bruxing patients to eliminate probable causative or contributing occlusal factors.","PeriodicalId":15562,"journal":{"name":"Journal of Dentistry, Shiraz University of Medical Sciences","volume":"36 1","pages":"8-13"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77030194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.30476/DENTJODS.2019.43608
J. Jahanbani, J. Mirlashari, O. Fahimi
Statement of the Problem: During the recent years, new methods of teaching and learning have been introduced for medical and dental students in addition to the traditional teaching techniques. Computer assisted learning (CAL) program is one of these methods which seem to have promising results. Purpose: To compare a computer -assisted learning (CAL) program about oral red and white lesions with a print medium of identical content. Materials and Method: Fifty senior dental students were randomly assigned in a prospective study to either use the CAL program (n=25) or a pamphlet (n=25). After one week since the educational CDs and pamphlets were distributed, both groups were asked to complete the post-intervention multiple choice questionnaire followed by watching 10 clinical slides on oral red and white lesions for 10 minutes. Chi-square and Mann-Whitney tests were used for data analysis. Results: Students in the CAL program group scored higher (16.64) than those in the pamphlet group (13.44) and this difference (3.2 points or 28%) was statistically significant ( p <0.05). Conclusion: The difference in test scores was most likely related to the use of the CAL program and it seems to be a promising medium as an adjunct to other traditional tutorial methods.
{"title":"The Effectiveness of an Oral Pathology Computer- Assisted Learning Program for Dental Students","authors":"J. Jahanbani, J. Mirlashari, O. Fahimi","doi":"10.30476/DENTJODS.2019.43608","DOIUrl":"https://doi.org/10.30476/DENTJODS.2019.43608","url":null,"abstract":"Statement of the Problem: During the recent years, new methods of teaching and learning have been introduced for medical and dental students in addition to the traditional teaching techniques. Computer assisted learning (CAL) program is one of these methods which seem to have promising results. Purpose: To compare a computer -assisted learning (CAL) program about oral red and white lesions with a print medium of identical content. Materials and Method: Fifty senior dental students were randomly assigned in a prospective study to either use the CAL program (n=25) or a pamphlet (n=25). After one week since the educational CDs and pamphlets were distributed, both groups were asked to complete the post-intervention multiple choice questionnaire followed by watching 10 clinical slides on oral red and white lesions for 10 minutes. Chi-square and Mann-Whitney tests were used for data analysis. Results: Students in the CAL program group scored higher (16.64) than those in the pamphlet group (13.44) and this difference (3.2 points or 28%) was statistically significant ( p <0.05). Conclusion: The difference in test scores was most likely related to the use of the CAL program and it seems to be a promising medium as an adjunct to other traditional tutorial methods.","PeriodicalId":15562,"journal":{"name":"Journal of Dentistry, Shiraz University of Medical Sciences","volume":"2 1","pages":"57-60"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74272447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.30476/DENTJODS.2019.43604
M. Jamei, J. M. Elahi, A. Mansourian, N. Shahsavari, S. Shabestari
Statement of Problem: Oral Lichen Planus (OLP) is a chronic immunologic disorder with unknown etiology. Stress and anxiety are some risk factors for OLP and Vitamin B12 and folic acid have been proved to be effective micro-nutrients for prevention of anxiety and depression. Purpose: The purpose of this study was to investigate serum Vitamin B12 and folic acid deficiency in patients with OLP. Materials and Method: Forty eight individuals (32 cases with histopatholo-gically proven OLP and 16 healthy subjects) were recruited. Serum folic acid and Vitamin B12 were assessed for each individual. T-test was applied for data analysis. Results: Vitamin B12 deficiency was found in 8 of 32 cases with OLP (25%) while in the control group it was found in 12.5% of the subjects ( p >0.05). Of the 32 patients with OLP, one had folic acid deficiency while none of the control subjects had such a deficiency ( p >0.05). Conclusion: Although Vitamin B12 deficiency in OLP patients did not show a statistically significant difference compared with healthy subjects, it was approximately twice as much as the control group. And it can be suggested that Vitamin B12 may have some effective roles in OLP pathogenesis while folic acid deficiency cannot be considered as a prominent risk factor in OLP. More studies are needed to prove such relation.
{"title":"ASSESSMENT OF SERUM VITAMIN B12 AND FOLIC ACID IN PATIENTS WITH ORAL LICHEN PLANUS: A CASE CONTROL STUDY","authors":"M. Jamei, J. M. Elahi, A. Mansourian, N. Shahsavari, S. Shabestari","doi":"10.30476/DENTJODS.2019.43604","DOIUrl":"https://doi.org/10.30476/DENTJODS.2019.43604","url":null,"abstract":"Statement of Problem: Oral Lichen Planus (OLP) is a chronic immunologic disorder with unknown etiology. Stress and anxiety are some risk factors for OLP and Vitamin B12 and folic acid have been proved to be effective micro-nutrients for prevention of anxiety and depression. Purpose: The purpose of this study was to investigate serum Vitamin B12 and folic acid deficiency in patients with OLP. Materials and Method: Forty eight individuals (32 cases with histopatholo-gically proven OLP and 16 healthy subjects) were recruited. Serum folic acid and Vitamin B12 were assessed for each individual. T-test was applied for data analysis. Results: Vitamin B12 deficiency was found in 8 of 32 cases with OLP (25%) while in the control group it was found in 12.5% of the subjects ( p >0.05). Of the 32 patients with OLP, one had folic acid deficiency while none of the control subjects had such a deficiency ( p >0.05). Conclusion: Although Vitamin B12 deficiency in OLP patients did not show a statistically significant difference compared with healthy subjects, it was approximately twice as much as the control group. And it can be suggested that Vitamin B12 may have some effective roles in OLP pathogenesis while folic acid deficiency cannot be considered as a prominent risk factor in OLP. More studies are needed to prove such relation.","PeriodicalId":15562,"journal":{"name":"Journal of Dentistry, Shiraz University of Medical Sciences","volume":"32 1","pages":"36-39"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86422038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.30476/DENTJODS.2019.43607
M. Rad, G. Chamani, M. Zarei, M. Hashemipour
Statement of Problem: Head and neck cancers occur in a wide variety of tissue types and sites, resulting in a complex range of malignancies cared by physicians in multiple specialties. Epidemiologic aspects of head and neck cancer in Iran have not been studied adequately. Purpose: The aim of this study was to represent epidemiological aspects of head and neck cancers in Kerman province in Iran. Materials and Method: In this retrospective epidemiological study, a total of 2211 cases of head and neck cancers were diagnosed in period 11-year. Data on all malignant head and neck cancers were included in this study. Information was obtained from the records of the 18 departments of histopathology in Kerman province. Results: The five most common sites were skin of the head and neck (46.81%), lymph nodes of head and neck (13.98%), larynx (13.48%), oral cavity and pharynx (12.21%), and thyroid (6.20%). Paranasal sinuses were the least common. The incidence rate of head and neck cancers was 10.12/100000 cases. Conclusion: Geographical or regional variations in the prevalence of head and neck cancer indicate that the socio-cultural lifestyles of a population play an important role in head and neck carcinogenesis. This study showed that the incidence rate of head and neck cancers was lower than that in many other countries. However, comparison between our findings with some other studies shows a relation consistency.
{"title":"Epidemiological Aspects of Head and Neck Cancers in a Group of Iranian Population","authors":"M. Rad, G. Chamani, M. Zarei, M. Hashemipour","doi":"10.30476/DENTJODS.2019.43607","DOIUrl":"https://doi.org/10.30476/DENTJODS.2019.43607","url":null,"abstract":"Statement of Problem: Head and neck cancers occur in a wide variety of tissue types and sites, resulting in a complex range of malignancies cared by physicians in multiple specialties. Epidemiologic aspects of head and neck cancer in Iran have not been studied adequately. Purpose: The aim of this study was to represent epidemiological aspects of head and neck cancers in Kerman province in Iran. Materials and Method: In this retrospective epidemiological study, a total of 2211 cases of head and neck cancers were diagnosed in period 11-year. Data on all malignant head and neck cancers were included in this study. Information was obtained from the records of the 18 departments of histopathology in Kerman province. Results: The five most common sites were skin of the head and neck (46.81%), lymph nodes of head and neck (13.98%), larynx (13.48%), oral cavity and pharynx (12.21%), and thyroid (6.20%). Paranasal sinuses were the least common. The incidence rate of head and neck cancers was 10.12/100000 cases. Conclusion: Geographical or regional variations in the prevalence of head and neck cancer indicate that the socio-cultural lifestyles of a population play an important role in head and neck carcinogenesis. This study showed that the incidence rate of head and neck cancers was lower than that in many other countries. However, comparison between our findings with some other studies shows a relation consistency.","PeriodicalId":15562,"journal":{"name":"Journal of Dentistry, Shiraz University of Medical Sciences","volume":"252 1","pages":"50-56"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91458167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.30476/DENTJODS.2019.43600
H. Elahi, A. Makarem, A. R. Noughani
Statement of Problem: Periodontal problems seem to be more common in mentally retarded children due to the poorer oral hygiene than in mentally healthy children, but no data are available on periodontal treatment needs in these children in Mashhad. Purpose: The purpose of this study was to determine periodontal treatment needs of the mentally retarded children in Mashhad, Iran, using the Community Periodontal Index for Treatment Needs. Materials and Method: In this descriptive cross-sectional study, 258 mentally retarded children aged 9-14 years consisting of 38 educable, 95 trainable and 125 profound children residing in governmental and private centers in the city of Mashhad, Iran were assessed for Community Periodontal Index for Treatment Needs (CPITN). For analyzing the results of the study, T-test and analysis of variance (ANOVA) were used. The level of significance was set at p <0.05. Results: Statistical analysis revealed that the mean CPITN among different age groups was 1.34±0.49. The mean CPITN increased with age (p =0.01) and with the level of mental retardation (p= 0.001). The treatments needed for most of the children were oral hygiene instruction (74.42%), followed by scaling (23.64%), and extensive periodontal treatments (1.16%). Only, 0.78% of the population demonstrated healthy periodontal tissue. Mean CPITN was significantly higher in governmental centers than private ones (p =0.02). Conclusion: It was concluded that the periodontal treatment needs (oral hygiene instruction) of the mentally retarded children was high in Mashhad.
{"title":"Periodontal Treatment Needs Amongst 9-14 Year-old Institutionalized Mentally Retarded Children in Mashhad, IRAN","authors":"H. Elahi, A. Makarem, A. R. Noughani","doi":"10.30476/DENTJODS.2019.43600","DOIUrl":"https://doi.org/10.30476/DENTJODS.2019.43600","url":null,"abstract":"Statement of Problem: Periodontal problems seem to be more common in mentally retarded children due to the poorer oral hygiene than in mentally healthy children, but no data are available on periodontal treatment needs in these children in Mashhad. Purpose: The purpose of this study was to determine periodontal treatment needs of the mentally retarded children in Mashhad, Iran, using the Community Periodontal Index for Treatment Needs. Materials and Method: In this descriptive cross-sectional study, 258 mentally retarded children aged 9-14 years consisting of 38 educable, 95 trainable and 125 profound children residing in governmental and private centers in the city of Mashhad, Iran were assessed for Community Periodontal Index for Treatment Needs (CPITN). For analyzing the results of the study, T-test and analysis of variance (ANOVA) were used. The level of significance was set at p <0.05. Results: Statistical analysis revealed that the mean CPITN among different age groups was 1.34±0.49. The mean CPITN increased with age (p =0.01) and with the level of mental retardation (p= 0.001). The treatments needed for most of the children were oral hygiene instruction (74.42%), followed by scaling (23.64%), and extensive periodontal treatments (1.16%). Only, 0.78% of the population demonstrated healthy periodontal tissue. Mean CPITN was significantly higher in governmental centers than private ones (p =0.02). Conclusion: It was concluded that the periodontal treatment needs (oral hygiene instruction) of the mentally retarded children was high in Mashhad.","PeriodicalId":15562,"journal":{"name":"Journal of Dentistry, Shiraz University of Medical Sciences","volume":"17 1","pages":"15-20"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75583561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.30476/DENTJODS.2019.43601
F. Aghajani, A. Khorshidian
Statement of Problem: The chemical reactions occur at the amalgam surface when exposed to bleaching agents. Mercury ion is released from dental amalgam when bleached. Purpose: The aim of this in vitro study was to investigate the effect of carbamide peroxide (CP) on the release of mercury ion from two types of spherical dental amalgam. Materials and Method: Two commercial brands of dental amalgam, Cinalux and GS-80, were selected. 18 amalgam discs of any brand were prepared in silicon moulds according to the manufacturer's instructions. After 60 minutes, the discs were removed and individually immersed in artificial saliva (AS) for 24 h at 37 0C . Then, the discs of any amalgam were divided into two equal test group (A) and control group (B). Each specimen in the test group was treated in eighthour cycles with 10% CP. The specimens of the control group was treated in similar cycles with AS. All of the solutions were taken for Hg ion release determination, using cold-vapor atomic absorption mercury analyzer system. The data were analyzed using General Linear Model followed by Repeated Measures ANOVA. Results: The results indicated that the bleaching agent significantly caused more mercury ion to be released into the solutions ( p <0.05) but artificial saliva did not show this effect. The release rate of mercury from the Cinalux during the two weeks of treatment period with 10% CP showed an increase from 11.63 µg/lit in the first day to 228.85 µ g/lit in the last day. The release rate from GS-80 showed a decrease from 130.96 µg/lit in the first day to 80.68 µ g/lit in the last day. Conclusion: Treatment with %10 carbamide peroxide increased mercury release from dental amalgam in comparison with the artificial saliva. The release of Hg from 2 brands of dental amalgam was in a safe range.
{"title":"Effect of 10% Carbamide Proxide on Mercury Release from Two Types of Dental Amalgam","authors":"F. Aghajani, A. Khorshidian","doi":"10.30476/DENTJODS.2019.43601","DOIUrl":"https://doi.org/10.30476/DENTJODS.2019.43601","url":null,"abstract":"Statement of Problem: The chemical reactions occur at the amalgam surface when exposed to bleaching agents. Mercury ion is released from dental amalgam when bleached. Purpose: The aim of this in vitro study was to investigate the effect of carbamide peroxide (CP) on the release of mercury ion from two types of spherical dental amalgam. Materials and Method: Two commercial brands of dental amalgam, Cinalux and GS-80, were selected. 18 amalgam discs of any brand were prepared in silicon moulds according to the manufacturer's instructions. After 60 minutes, the discs were removed and individually immersed in artificial saliva (AS) for 24 h at 37 0C . Then, the discs of any amalgam were divided into two equal test group (A) and control group (B). Each specimen in the test group was treated in eighthour cycles with 10% CP. The specimens of the control group was treated in similar cycles with AS. All of the solutions were taken for Hg ion release determination, using cold-vapor atomic absorption mercury analyzer system. The data were analyzed using General Linear Model followed by Repeated Measures ANOVA. Results: The results indicated that the bleaching agent significantly caused more mercury ion to be released into the solutions ( p <0.05) but artificial saliva did not show this effect. The release rate of mercury from the Cinalux during the two weeks of treatment period with 10% CP showed an increase from 11.63 µg/lit in the first day to 228.85 µ g/lit in the last day. The release rate from GS-80 showed a decrease from 130.96 µg/lit in the first day to 80.68 µ g/lit in the last day. Conclusion: Treatment with %10 carbamide peroxide increased mercury release from dental amalgam in comparison with the artificial saliva. The release of Hg from 2 brands of dental amalgam was in a safe range.","PeriodicalId":15562,"journal":{"name":"Journal of Dentistry, Shiraz University of Medical Sciences","volume":"95 1","pages":"21-25"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83212932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.30476/DENTJODS.2019.43602
J. Ghabanchi, Abdolaziz Haghnegahdar, S. H. Khodadazadeh, S. Negahdar
Statement of Problem: Many epidemiological surveys have been conducted in different parts of the world to determine the prevalence of various types of dental anomalies. There are regional and ethno-racial variations in the prevalence of dental anomalies. Purpose: To assess the prevalence of dental anomalies in a group of Iranian dental patients in Shiraz dental school, Iran. Materials and Method: 414 dental patients referring to dental school and aged between 15-60 years old (257 female and 157 male) were examined clinically and radiographicaly for the presence of dental anomalies, using orthopanthomography. Data were collected and analyzed by Chi-square and Fisher exact tests. Results: Fluorosis was the most prevalent anomaly (7.72%) followed by missing of the wisdom teeth (7%), impaction of teeth (4.34%), microdontia (2.89%), missing of the mandibular second premolars (2.65%), supernumerary teeth (2.4%), missing of the maxillary lateral incisors (1.6%), dilaceration (1.44%), invagination (1.44%), and taurodontism (0.96%). Conclusion: In the comparison of these results with those of other studies, it was indicated that these anomalies occur at different frequencies among various coun-tries and communities in the world. Recognizing these anomalies will facilitate the endodontic, prosthodontic, periodontic and surgical management of such teeth.
{"title":"A Radiographic and Clinical Survey of Dental Anomalies in Patients Referring to Shiraz Dental School","authors":"J. Ghabanchi, Abdolaziz Haghnegahdar, S. H. Khodadazadeh, S. Negahdar","doi":"10.30476/DENTJODS.2019.43602","DOIUrl":"https://doi.org/10.30476/DENTJODS.2019.43602","url":null,"abstract":"Statement of Problem: Many epidemiological surveys have been conducted in different parts of the world to determine the prevalence of various types of dental anomalies. There are regional and ethno-racial variations in the prevalence of dental anomalies. Purpose: To assess the prevalence of dental anomalies in a group of Iranian dental patients in Shiraz dental school, Iran. Materials and Method: 414 dental patients referring to dental school and aged between 15-60 years old (257 female and 157 male) were examined clinically and radiographicaly for the presence of dental anomalies, using orthopanthomography. Data were collected and analyzed by Chi-square and Fisher exact tests. Results: Fluorosis was the most prevalent anomaly (7.72%) followed by missing of the wisdom teeth (7%), impaction of teeth (4.34%), microdontia (2.89%), missing of the mandibular second premolars (2.65%), supernumerary teeth (2.4%), missing of the maxillary lateral incisors (1.6%), dilaceration (1.44%), invagination (1.44%), and taurodontism (0.96%). Conclusion: In the comparison of these results with those of other studies, it was indicated that these anomalies occur at different frequencies among various coun-tries and communities in the world. Recognizing these anomalies will facilitate the endodontic, prosthodontic, periodontic and surgical management of such teeth.","PeriodicalId":15562,"journal":{"name":"Journal of Dentistry, Shiraz University of Medical Sciences","volume":"2 1","pages":"26-31"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73559267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.30476/DENTJODS.2019.43603
A. Azizi, Lawaf Sh
Statement of Problem: In thrombosis and ambolism therapy, one of the therapeutive options is the use of anticoagulents. Patients who take anticoagulants are susceptible to bleeding and cannot brush or floss their teeth. They are prone to periodontitis. Periodontal diseases are associated with periodontal cell destruction and consequently their cell contents would be found in the saliva. Purpose: The assessment of albumin and total protein contents and determi-nation of its correlation with periodontal parameters in patients who take warfarin are the goals of the present study. Materials and Method: In this case-control study, the subjects were classified into 2 groups of patients who took warfarin (case group) and those who did not take any medication (control group). In both groups, periodontal parameters such as plaque index (PI), gingival index (GI), pocket depth (PD), bleeding on probing (BOP) and clinical attachment loss (CAL), and total protein and albumin were assessed. T-test and Pearson test were used to analyze the data. Results: Although salivary albumin was significantly higher in the case group in comparison with the control one, total salivary protein contents were not observed differently between the two groups. Compared with the control group, periodontal clinical parameters were high in the case group and obvious significant differences were seen ( p <0.05). Conclusion: Appropriate oral and gingival hygiene instruction is necessary due to the high periodontal clinical parameters in patients who take warfarin.
{"title":"The Assessment of Periodontal Parameters, Salivary Total Protein and Albumin Contents in Patients Taking Warfarin","authors":"A. Azizi, Lawaf Sh","doi":"10.30476/DENTJODS.2019.43603","DOIUrl":"https://doi.org/10.30476/DENTJODS.2019.43603","url":null,"abstract":"Statement of Problem: In thrombosis and ambolism therapy, one of the therapeutive options is the use of anticoagulents. Patients who take anticoagulants are susceptible to bleeding and cannot brush or floss their teeth. They are prone to periodontitis. Periodontal diseases are associated with periodontal cell destruction and consequently their cell contents would be found in the saliva. Purpose: The assessment of albumin and total protein contents and determi-nation of its correlation with periodontal parameters in patients who take warfarin are the goals of the present study. Materials and Method: In this case-control study, the subjects were classified into 2 groups of patients who took warfarin (case group) and those who did not take any medication (control group). In both groups, periodontal parameters such as plaque index (PI), gingival index (GI), pocket depth (PD), bleeding on probing (BOP) and clinical attachment loss (CAL), and total protein and albumin were assessed. T-test and Pearson test were used to analyze the data. Results: Although salivary albumin was significantly higher in the case group in comparison with the control one, total salivary protein contents were not observed differently between the two groups. Compared with the control group, periodontal clinical parameters were high in the case group and obvious significant differences were seen ( p <0.05). Conclusion: Appropriate oral and gingival hygiene instruction is necessary due to the high periodontal clinical parameters in patients who take warfarin.","PeriodicalId":15562,"journal":{"name":"Journal of Dentistry, Shiraz University of Medical Sciences","volume":"15 1","pages":"32-35"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84333244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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