Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Issue Information

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
Title: 
Author(s): 

Issue Info: 
  • Year: 

    0
  • Volume: 

    39
  • Issue: 

    4
  • Pages: 

    -
Measures: 
  • Citations: 

    8
  • Views: 

    1162
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Title: 
Author(s): 

Issue Info: 
  • Year: 

    0
  • Volume: 

    39
  • Issue: 

    4
  • Pages: 

    -
Measures: 
  • Citations: 

    0
  • Views: 

    997
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2015
  • Volume: 

    39
  • Issue: 

    4
  • Pages: 

    291-302
Measures: 
  • Citations: 

    0
  • Views: 

    1004
  • Downloads: 

    0
Abstract: 

Introduction: Early detection is the most important factor in reducing mortality of oral cancer. Dental and medical professionals pose an important role according to screening, early detection and subsequent referral. The aim of the current study was to assess knowledge and diagnostic skills of oral cancel among dental and medical practitioners in the city of Shiraz.Materials& Methods: This was a descriptive cross- sectional study was couducted on 200 general physicians and dentists using questionnaire in the city of Shiraz in 2014. Simple randomization sampling was conducted. Data were analyzed via SPSS version18 by student’s t-test, Mann Whitney, Chi-square and Spearman co-efficient correlation.Results: A total of 200 participants (100 dentists and 100 medical doctors) were recruited. Mean professional experience was 9 years and 6 months. The average grade for knowledge and diagnostic skills were 69% and 52% respectively. Our data showed negative correlation between grade of ability and number of patient visits per day and also daily working hours among general physicians (P<0.005).Conclusion: The result of this study revealed that there was a lack of adequate knowledge and diagnostic skills about oral cancer in our selected sample.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2015
  • Volume: 

    39
  • Issue: 

    4
  • Pages: 

    303-314
Measures: 
  • Citations: 

    0
  • Views: 

    970
  • Downloads: 

    0
Abstract: 

Introduction: Based on reports of contamination of dental units, its consequences and the importance of dental surface antiseptics, this study aimed to investigate the effect of new antiseptic solutions on contamination levels in the dental units of Department of Restorative Dentistry, Islamic Azad University in Tehran.Materials & Methodes: This experimental study was carried out on nine units of the Restorative Department. A random sampling was carried out and then the experimental sulfaces were disinfected randomly using one of the 3 following solutions: Septisurface, Anios DDSH, and Biosanitized (activated H2O2). Subsequently, microbial sampling was performed at 3 time points and the bacterial colonies were counted. The bacterial species were identified using the specific tests. The data were analyzed using paired t test and one way analysis of variance at 0.05 levels.Resultes: The study demonstrated that all surfaced were contaminated before disinfection. Staphylococcus aureus and Streptococcus pyogenes had the highest and the lowest prevalence respectively. There were statistically significant difference between before and after treatment for all of the solutionse (P=0.001). However, no difference between the 3 solutions on their effecs on gram positive bacteria was found.Conclusion: There were no significant differences between the 3 solutions tested on this study in terms of disinfection effect. However, all solutions significantly reduced surface contamination.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2015
  • Volume: 

    39
  • Issue: 

    4
  • Pages: 

    315-322
Measures: 
  • Citations: 

    0
  • Views: 

    535
  • Downloads: 

    0
Abstract: 

Introduction: Advances in Radiographic detection method lead to the development of several digital radiography systems and display technology of them. The purpose of this study was the evaluation of observer agreement in the detection of interproximal caries in the digital bitewing radiography with two type of LCD Monitor.Materials & Methods: In this exprimental study, 27 Bitewing digital radiography were evaluated by four observers on 2 monitors of Samsung sync mastery203B and EizoflexscanMX190. The depth of the caries on radiograms was classified into five grades. After 14 days, observers evaluated the same image to evaluate the repeatability. Kendall, s correlation coefficient and Chi-square test were used for statistical analysis.Results: According to Kendall, s correlation, intera-observer agreement were 0.69 & 0.7 and inter observer agreement were 0.56 & 0.62 for the conditional & medical monitor respectively. According to the depth of the caries, there was a significant difference between two monitors only in detection of grade 0 and grade 1 carries (P<0.01).Conclusion: There was no significant difference in intra & inter observer agreement between two types of the monitor. Therefore, conditional monitors with the minimum of resolution are enough to defect caries. No extra information is taken from the medical monitors.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2015
  • Volume: 

    39
  • Issue: 

    4
  • Pages: 

    323-334
Measures: 
  • Citations: 

    0
  • Views: 

    465
  • Downloads: 

    0
Abstract: 

Introduction: Knowledge about incidence of subluxation of temporomandibular joint (TMJ) and related probable predisposing factors can help in preventing or decreasing its sequella. This study was designed to clinically evaluate the incidence and the effect of factors such as age and sex on the expression of TMJ subluxation among students in Shiraz, Iran.Materials & Methods: This cross-sectional study was performed on 800 randomly selected students, aging from 7 to 18 years old in Shiraz. The students were examined clinically and an examination sheet completed. Final diagnosis of subluxation was based on sudden jerky movement and exit of condyle from glenoid fossa upon mouth opening. Data were analyzed with Chi-Square test.Result: The incidence of subluxation in studied population was 33.1% and 1.67 times more prevalent in the female than the male students. The incidence was not meaningfully related to age. Also 72.8% of involved cases were symptomatic. Tenderness in Temporalis muscle was the most prevalent symptom.Conclusion: Subluxation is a common finding among school children of Shiraz. Girls are more prone to develop subluxation. The incidence of subluxation was not related to the age. The, related symptoms, however will increase by age.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2015
  • Volume: 

    39
  • Issue: 

    4
  • Pages: 

    335-342
Measures: 
  • Citations: 

    0
  • Views: 

    941
  • Downloads: 

    0
Abstract: 

Introduction: Green tea polyphenols green tea is one important factor for inhibition of growth of oral bacteria. This study investigates the antibacterial effect of green tea extract on Enterococcus faecalis and Streptococcus mutans of dental plaques.Materials & Methods: A lot of 60 samples of dental plaques, the samples were placed in transport medium (TSB) and were then transported to the microbiology laboratory. The samples were cultured in blood agar medium, Mitis salivarius agar, bile esculin agar and were incubated in proximity of Co2 (5-10%) at 37oC for 48 hours. After observing the colonies, the slides were prepared and were stained by Grams Method. To ensure the authentication and identification of microorganisms, common microbial and chemical tests were used. After determining the type of bacteria, antibiogram test was done and to determine bacterial sensitivity and resistance to green tea, sodium hypochlorite and chlorhexidine by Disc Diffiusion Agar according to CLSI (Clinical and Laboratory Standards Institute) guidelines. The data were analyzed by ANOVA and Tukey test (a=0.05)Results: ANOVA test showed that diameter of growth inhibition of green tea was not so different from chlorhexidine for Streptococcus mutans, (P=0.305) but was significantly less than sodium hypochlorite (P=0.0001) and also the inhibitory effect of sodium hypochlorite was significantly higher than chlorhexidine (P=0.038). In Enterococcus faecalis, sodium hypochlorite was more effective than green tea and chlorhexidine (P=0.0001) and chlorhrxidine effect was significantly greater than that of green tea (P=0.0001).Conclusion: Sodium hypochlorite had the highest inhibitory effect on growth of Streptococcus mutans and Enterococcus faecalis. Since there was no significant difference between inhibitory effect of green tea in Streptococcus mutans and chlorhexidine, using it as a mouth wash, could be a suitable alternadive way to prevent tooth decay.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2015
  • Volume: 

    39
  • Issue: 

    4
  • Pages: 

    343-350
Measures: 
  • Citations: 

    0
  • Views: 

    636
  • Downloads: 

    0
Abstract: 

Introduction: Knowledge of self-etch bonding systems with the least amount of micro leakage can be a good guidance for choosing a proper adhesive at the time of saliva contamination and reducing fissure sealant working time, especially for children. The aim of this study was to determine the effect of saliva contamination on sealants' microleakage in adhesive systems with different acidity.Materials & Methods: The occlusal fissures of 54 extracted third molars were prepared with 1.4 round bur. Then teeth were randomly divided into 6 groups. Total etch dentin bonding (Adper single bond2), self-etch with weak acidity (Clearfil S3 Bond) and self-etch with strong acidity (Adper prompt l-pop) were used. The fissures of teeth, after thermocycling and cutting, were examined. The afore-mentioned bondings were used to treat 3 contaminated and 3 no ncontaminated groups, followed by the sealing of fissures.Results: Comparison of micro leakage between groups revealed a significantly lower amount for the self-etch bonding with weak acidity (Clearfil S3 Bond) -both in contaminated and no ncontaminated teeth versus strong-acidity-self-etch group (Adper prompt l-pop) (P=0.001). However under these conditions comparing micro leakage between self-etch and total etch bondings indicated no difference.Conclusion: In the possibility of saliva contamination, the application of weak-acidity-self-etch adhesives (Clearfil S3 Bond) is recommended for fissure sealant therapy.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2015
  • Volume: 

    39
  • Issue: 

    4
  • Pages: 

    351-362
Measures: 
  • Citations: 

    0
  • Views: 

    762
  • Downloads: 

    0
Abstract: 

Introduction: The subject of education has always been a matter of great importance. The most commonly available educational aid is Microsoft PowerPoint software. The aim of this study was to determin the most effectiv farsi fonts on training and to find preferences of the Mashhad Dental School students.Materials & Methods: This study was performed in two parts 1) Evaluation of farsi fonts and 2) Evaluation of student preferences. In the first part, a free topic powerpoint presentation was given and was assessed if the types of farsi fonts affected the students’ learning rate. In the second part, a powerpoint presentation was shown to the students and they were asked about their preferences in the structure of slides.Results: The most correct answers were in slides prepared by “Traffic” font (84%). Results for other fonts were as follows: "Arial" (48.1%), "Titr" (57.4%) and “Homa" (46.3%). In the second part, 58% of the students preferred to use the original English words. To attract the attention of the audieuce, 39.1% of the students preferred to change the font color. For the style of aligning the sentences, 52% chose the Justify alignment. Simple color background, smart art text, indented bullet and pause between paragraphs were other preferences of students.Conclusion: Content prepared by "Traffic" font was best remembered by students. The students had some preferences in alignment, background, pause between paragraphs, etc…

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2015
  • Volume: 

    39
  • Issue: 

    4
  • Pages: 

    363-372
Measures: 
  • Citations: 

    2
  • Views: 

    1211
  • Downloads: 

    0
Abstract: 

Introduction: Musculoskeletal disorders (MSDs) have been reported as the most important reason for early retirement among dentists. The aim of this study was to assess the prevalence of musculoskeletal disorders and body discomfort among dentists.Materials & Methods: This cross sectional and descriptive-analytical study carried out on all dentists (150 subjects) of one of universities in Tehran province. We used a visual analog scale (in order to determine the severity of body discomfort) and also a body map questionnaire (in order to assess musculoskeletal disorders prevalence). Data analysis was performed using the Mann-Whitney test, t-test and Kruskal-Wallis. Statistical analysis was conducted using SPSS version 22 software.Results: According to the results of the body map questionnaire, the highest prevalence of musculoskeletal disorders was allocated to the neck (50%), shoulder/arm (45.3%) and low back (34.5%), respectively. Also results of the visual analog scale indicated that the highest amount of discomfort was related to low back (70.2), neck (55.4) and shoulder/arm (54.4), respectively.Conclusion: According to high prevalence of musculoskeletal disorders and also, high levels of body discomfort, dentists need to take corrective actions with the priorities of educational programs.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Author(s): 

YAGHOOTI KHORASANI MOHAMMADMAHDI | KABOLINEJAD DORSA

Issue Info: 
  • Year: 

    2015
  • Volume: 

    39
  • Issue: 

    4
  • Pages: 

    373-382
Measures: 
  • Citations: 

    0
  • Views: 

    798
  • Downloads: 

    0
Abstract: 

Introduction: Root canal therapy of teeth can stop the endodontic pain, but the cousequent post-endodontic pain and discomfort are undesirable effects. There are many studies on various drugs for alleviation of post-endodontic pain. The purpose of this study was to compare the Efficacy of prophylactic use of Teltonal in comparison with Ibuprofen on post- endodontic pain.Materials & Methods: In this triple-blind clinical trial study, 57 patients with anterior vital single rooted teeth and severe decay were selected. Patients were divided into three groups of A, B and C. One capsule was given to each patient as prophylaxis before the treatment, which according to its code contained Ibuprofen, Teltonal or Placebo. Intensity of pain was recorded by the patients before treatment and 6, 12, 24, 48 and 72 hours after the treatment using a VAS scale. The collected data were processed in SPSS-21, and to compare pain during the evaluation periods in all three groups studied, two-way repeated measure ANOVA was used.Results: In each of the three study groups during the evaluation period, the average pain was significantly reduced (P<0.001). However, the difference between the gtoupd was not statistically significant (P=0.347).Conclusion: Since no statistically significant difference was observed between the groups, prophylactic use of these drugs for reduction of post-endodontic pain is not suggested.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2015
  • Volume: 

    39
  • Issue: 

    4
  • Pages: 

    383-388
Measures: 
  • Citations: 

    0
  • Views: 

    813
  • Downloads: 

    0
Abstract: 

Introduction: Treatment of immature permanent teeth damaged by caries or trauma is usually a challenge to a dentist. Recently, revascularization process is performed to induce root development in immature necrotic teeth. The purpose of this report was to present a case of pulp revascularization in an immature necrotic tooth.Case Report: An 8-year-old boy was presented to the pediatric Department of Mashhad dental school with the chief Complaint of localized swelling on the anterior region of maxilla and a history of trauma to the maxillary right central incisor. Based on clinical and radiographic Findings, the diagnosis was pulpal necrosis with symptomatic apical abscess. Revascularization therapy was performed over multiple visits. At 6- month follow-up, in addition to complete healing of the periapical lesion, apex had been closed and dentinal wall thickness had been increased. At 12-month follow-up, pulp canal obliteration (PCO) was observed. At 24-month follow-up; tooth was asymptomatic and PCO had been.Conclusion: Considering the loss of periapical radiolucencies and root development of this tooth after a short period of time, it could be concluded that revascularization was an appropriate treatment method in immature necrotic teeth.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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