Rubber Dam and Application Methods in Dental PracticeIsolation is necessary in most dental practices. Rubber dam method is often preferred for this process. Rubber dam improves the success of the process by providing proper isolation of the study area. In addition, it reduces aerosol formation. Today, it protects of the operator and the dental staff and the patients from infectious diseases such as coronavirus transmitted by droplets. By optimizing the way it works, it prevents possible soft mouth tissue injuries that you choose from the operator's view. In this review article, rubber dam isolation method which is used frequently in dentistry is explained.

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The aim of this study was to evaluate the bond strength of three different calcium silicate based cements (Biodentine, NeoPutty and MTA Cem LC) with two different bulk fill composites (fiber-reinforced and non-fiber-reinforced). Plexiglas molds with a diameter of 4 mm and a thickness of 2 mm were prepared (n=60). Each CBC was mixed according to the manufacturer’s instructions and placed in plexiglass molds. The BD, NP, and MTA Cem LC samples were then randomly divided into 2 subgroups containing 10 samples each. The surfaces of the samples were air dried and Single Bond universal adhesive was applied. Then, cylindrical plastic capsules of 2 mm height and 2 mm inner diameter belonging to Filtek Bulk fill and EverX Posterior composite resin groups were centered on the coating material and polymerized for 20 seconds. After SBS testing, all samples were examined by scanning electron microscopy (SEM) to identify failure patterns. Three samples, one from each group, were prepared to evaluate the chemical compositions of the materials. Samples were prepared using plexiglass molds with a diameter of 10 mm and a thickness of 2 mm. The materials were then examined with an energy dispersive X-ray spectroscopy for surface elemental analysis. The values obtained from the tests were evaluated as statistically significant (p < 0.05). After SBS testing, the difference between all CBCs was statistically significant in both compound groups. According to the findings obtained from this study, it was concluded that MTA Cem LC had the highest SBS values in both composite groups.

The aim of the study is to assess the number of patients in terms of departments of dentistry, who applied to Dicle University Faculty of Dentistry during the period of COVID-19 pandemic, and to examine their causes of application to the endodontics clinic. Material and Methods: Between the dates of 11 March 2020, the day COVID-19 was identified for the first time in Turkey, and 31 July 2020, the first clinic that the patients applied following the Department of oral diagnosis and radiology was taken as a basis. Additionally, patients applying to the department of endodontics were assessed clinically and radiologically, and their causes of visit were examined. Result: Applied departments are determined respectively as follows: endodontics (37,62%), oral and maxillofacial surgery (25,32%), pediatric dentistry (12,52%), periodontology (8,11%), orthodontics (7,02%), prosthodontics (5,3%), and restorative dentistry (4,04%). The reasons for applying to Endodontics are found respectively as follows: irreversible pulpitis (44,02%), pulpal necrosis with symptomatic apical periodontitis (22,33%), acute apical abscess (18,01%), symptomatic apical periodontitis or acute apical abscess in endodontically treated teeth (7,83%), chronic apical periodontitis (4,12%), chronic apical abscess (2,92%), and traumatic dental injures (0,72%) Conclusion: Most of the patients, who applied to Faculty of Dentistry at Dicle University, were directed to department of endodontics. The cause of application to endodontics is identified mainly as irreversible pulpitis.

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