Objective Evaluating the potential remineralization effect of NovaMin prophylaxis paste on artificial enamel lesions in primary teeth using Vickers microhardness and scanning electron microscope. Materials and Methods Forty sound buccal and lingual surfaces of human primary canine teeth were randomly divided into two groups after creating artificially demineralized lesions (G1: NovaMin and G2: fluoride; 20 per group) and then treated with the respective remineralization agents. The remineralization cycle repeated twice daily for 10 days. The groups were evaluated with Vickers microhardness and scanning electron microscope before and after de/remineralization. Results Statistically significant difference of microhardness was observed between demineralized enamel and remineralized enamel with group 1 and group 2 (p = 0.000 and p = 0.000, respectively). No statistically significant difference of microhardness was observed between two remineralized agents (p = 0.368). Conclusion Within the limitation of this in vitro study, NovaMin enhances the remineralization process equally to fluoride.

Objectives: A novel coronavirus was first proclaimed in Hubei province, China, 213 countries worldwide also became an epicenter of the virus until June 17, 2020. The dental team has a high risk of infection as a result of the specificity of their procedures. The aim of this questionnaire was to estimate the preventive measures and the awareness methods that may be adopted by the dentists to prevent or reduce the transmission of COIVD-19. Material and Methods: The questionnaire was an electronic survey contained 23 questions, which were designed based on the instruction given for dental setting by CDC during COVID-19 pandemic; the respondents in this study were dental practitioners in Syria. Results: A total of 1013 dentists have responded to this survey 61% of the participants treated only the emergent treatment, 84% of them wear facial masks, while the prevalence for other protective equipment was low. The majority of the participants schedule the appointments as there is only one patient in the waiting room. More than half of the dentists sterilize the patients’ hands before and after the dental treatment, and 59% of them choose 70% ethyl alcohol as a disinfectant. Most of the respondents use dental mouthwashes before the initiation of the treatment. Almost three-quarters of the dentists use high vacuum. Only 15% of dentists sterilize the dental handpieces in the autoclaves after each patient. Most of dentists educate their patients about preventive methods. Conclusion: Based on these results, the Syrian dentists should take more strict measures during dental practice.

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Background: There is various wound closure techniques have been used in medical literatures like traditional non-absorbable sutures and advanced modalities, suchas synthetic absorbable sutures, surgical staples and tissue adhesives. Suturing has been the conventional method for approximating wound margins. However,suturing has many disadvantages leading to various alternative material closure options. This need to an interest in tissue adhesives such as new generation of cyanoacrylate which has unique properties lead us to focus on this technique in our study. Aim: Evaluation the efficacy of the adhesive tissue(iceberg-glue) in minimizing the post-operative bleeding and pain after surgical removal of impacted lower third molars. Materials and Methods: Sample size consisted of 19 patients with bilateral and symmetrical impacted lowers third molars were included in this randomized, split-mouth study. Patients with any pre-existing pathology or systemic disease were excluded. On one random side were surgically closure using silk suture (3-0) (group A), and using an adhesive tissue on the contralateral side (groupB). The comparison of the post-operative bleedingevaluation rated from (3hours, 6hours, 9hours, 12hours) post surgically, and post-operative pain evaluation in (one, third, and seven days) post surgically, the bleeding and pain assessment according to VAS scales. Result: Bleeding assessment according to Mann-Whitney U test,the outcome reveals statistically significant differences for adhesive group in the (3 hours, 6 hours, 9 hours) after surgery in adhesive tissue group (p<0.05) where as there is no significant difference in (12 hours) after surgery between two groups (p>0.05), pain assessed according to T-student test which reveals statistical significant differences in the one and third days post surgically for adhesive group and there is no differences in the seven days between the two groups. Conclusion:The iceberg-gluehas a significant and effective effect on hemostasis after surgical extraction of impacted lower molars compared with traditional suture with 3-0 silk thread.

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