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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Interdisciplinary Journal of Virtual Learning in Medical Sciences
- نوع مقاله: Journal Article
- کلمات کلیدی: Education,Knowledge,E-Learning,Dentistry,Tooth discoloration
- چکیده:
- چکیده انگلیسی: Background: The efficacy of electronic continuing education courses in comparison to lectured based methods requires further evaluation. This study aimed at comparing the effect of electronic (e-learning) and face-to-face conventional instruction on level of knowledge of general dentists on bleaching of discolored teeth. Methods: In this quasi-experimental controlled trial study in 2017 (1396) with post-test and control group design, firstly, a lecture-based continuing education courses at Shahid Beheshti University on discoloration of a single tooth was carried out for general dentists (as the control group, N = 35). Then, a continuing education online course with the same topic was done for the second group (N = 35). Convenience sampling was used to select participants of each group. Data were collected by a researcher-made questionnaire, which consisted of 2 parts (post-test with 10 questions and a satisfaction questionnaire with 10 questions). Content validity and test-retest reliability (r = 0.8) of both was determined. Data analysis was performed using the t-test and Pearson’s chi square test using the SPSS 23 software. The level of statistical significant was considered at P = 0.05. Results: The mean knowledge score after education was 7.02 (2.87) in e-learning and 6.77 (1.23) in the conventional group. The difference between the 2 groups was not significant (P = 0.63). Overall, 91.4% in the e-learning and 91.5% in the conventional group believed that the educational course obviated their occupational needs. Conclusions: E-learning was as effective as conventional instruction for bleaching of a single discolored tooth in terms of knowledge score (post-test score) and self-reported satisfaction and attitude of dentists.
- انتشار مقاله: 11-10-1348
- نویسندگان: Sedighe Sadat Hashemikamangar,Mohammad Javad Kharazi Fard,Nazanin Kiomarsi,Mitra Zolfaghari,Zahra Zinati,Ladan Ranjbar Omrani
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Dentistry, Shiraz University of Medical Sciences
- نوع مقاله: Journal Article
- کلمات کلیدی: Compressive strength,Calcium hydroxide,pulp capping material,calcium silicate,Resin-Modified Glass Ionomer
- چکیده:
- چکیده انگلیسی: Statement of the Problem: Adequate compressive strength is an important characteristic for an ideal liner.
Purpose: This study aimed to assess the compressive strength of several commonly used liners.
Materials and Method: This in vitro, experimental study evaluated 120 samples fabricated of Dycal, Calcimol LC, Vitrebond, Activa Bioactive, and TheraCal LC (n=24) liners according to the manufacturers’ instructions. The samples were fabricated using a cylindrical stainless steel mold with 6±0.1 mm height and 4±0.1 mm internal diameter. Half of the samples in each group (n=12) underwent compressive strength test immediately after completion of their primary setting while the other half (n=12) underwent compressive strength test after 24 h. During this period, the samples were immersed in deionized water (grade 3) and incubated at 37±1°C and 100% humidity for 24 h. The compressive strength was measured using a universal testing machine. Data were analyzed using two-way ANOVA followed by Tukey’s post-hoc test.
Results: The compressive strength of the five liners was significantly different (p < 0.05). Calcimol LC showed maximum compressive strength both immediately after setting and after 24 h. The compressive strength at 24 h was significantly higher than the primary compressive strength in all groups (p < 0.05).
Conclusion: Within the limitations of this study, it seems that Calcimol LC, Activa Bioactive Liner, and TheraCal LC have adequate compressive strength and can be used alone to provide adequate support for the restorative materials.- انتشار مقاله: 13-11-1398
- نویسندگان: Ladan Ranjbar Omrani,Zohreh Moradi,Mehdi Abbasi,Mohammad Javad Kharazifard,Seyedeh Niloufar Tabatabaei
- مشاهده
- جایگاه : پژوهشی
- مجله: Interdisciplinary Journal of Virtual Learning in Medical Sciences
- نوع مقاله: Journal Article
- کلمات کلیدی: Education,Knowledge,E-Learning,Dentistry,Tooth discoloration
- چکیده:
- چکیده انگلیسی: Background: The efficacy of electronic continuing education courses in comparison to lectured based methods requires further evaluation. This study aimed at comparing the effect of electronic (e-learning) and face-to-face conventional instruction on level of knowledge of general dentists on bleaching of discolored teeth. Methods: In this quasi-experimental controlled trial study in 2017 (1396) with post-test and control group design, firstly, a lecture-based continuing education courses at Shahid Beheshti University on discoloration of a single tooth was carried out for general dentists (as the control group, N = 35). Then, a continuing education online course with the same topic was done for the second group (N = 35). Convenience sampling was used to select participants of each group. Data were collected by a researcher-made questionnaire, which consisted of 2 parts (post-test with 10 questions and a satisfaction questionnaire with 10 questions). Content validity and test-retest reliability (r = 0.8) of both was determined. Data analysis was performed using the t-test and Pearson’s chi square test using the SPSS 23 software. The level of statistical significant was considered at P = 0.05. Results: The mean knowledge score after education was 7.02 (2.87) in e-learning and 6.77 (1.23) in the conventional group. The difference between the 2 groups was not significant (P = 0.63). Overall, 91.4% in the e-learning and 91.5% in the conventional group believed that the educational course obviated their occupational needs. Conclusions: E-learning was as effective as conventional instruction for bleaching of a single discolored tooth in terms of knowledge score (post-test score) and self-reported satisfaction and attitude of dentists.
- انتشار مقاله: 11-10-1348
- نویسندگان: Sedighe Sadat Hashemikamangar,Mohammad Javad Kharazi Fard,Nazanin Kiomarsi,Mitra Zolfaghari,Zahra Zinati,Ladan Ranjbar Omrani
- مشاهده