No abstract

Background:The number of child abuse cases is increasing worldwide; therefore, it is important to educate individuals having contact with children about it. This includes dentists who play a pivotal role in detecting and reporting child abuse. Aim: To identify and compare the final-year dental student's knowledge, attitudes, and practice in relation to child abuse. Design: A 38-item and four-part online questionnaire was distributed to students of 11 dental schools in 10 countries. SPSS and GraphPad Prism were used for data analysis. The levels of statistical significance were determined using a chi-square test. P ≤ .05 was considered to be statistically significant. Results: A total of 660 students completed the survey. Fifty-six percent of the students received formal training on child abuse, and 86% wanted additional training.The knowledge of child abuse was significantly higher in Australia, the United States, and Jordan compared with other countries. Internet (60.3%) was commonly used as an information source for child abuse. Conclusions:The study showed that dental students lack knowledge and experience in recognizing and reporting child abuse. Most respondents indicated a desire for additional training; therefore, dental schools should review what they are currently teaching and make changes as appropriate.

We report a case of sponastrime dysplasia (SEMDSP), which was diagnosed by characteristic clinical and radiographic findings.The proband was the first child of consanguineous parents (first cousins once removed). A brother was 3 years old and healthy. The mother previously had a 3-month spontaneous abortion. After an uneventful pregnancy, the proband was born at term by vacuum-assisted vaginal delivery. His birth weight was 2800 g. He remained in neonatal ICU for 15 days due to respiratory distress and had physiological jaundice. He was breastfed for about 23 months and then fed by a formula.

Objectives: New biomaterials had some advantages such as mixing and easier application as compared to traditional MTA in single-step apexification method. This study aimed to compare the three biomaterials used in the apexification treatment of immature molar teeth in terms of the time spent, the quality of the canal filling and the number of x-rays taken to complete the process.Methods: The root canals of the extracted thirty molar teeth were shaped with rotary tools. To obtain the apexification model, ProTaper F3 was used retrograde. The teeth were randomly assigned into three groups based on the material used to seal the apex; Group 1:Pro Root MTA, Group 2:MTA Flow, Group 3: Biodentine. The amounts of the filling, the number of radiographs taken until treatment completion and the treatment duration were recorded. Then teeth were fixed for micro computed tomography imaging for quality evaluation of canal filling.Results: Biodentine was superior than the other filling materials according to time. MTA Flow provided greater filling volume than the other filling materials in the rank comparison for the mesiobuccal canals. MTA Flow had greater filling volume than ProRoot MTA in the palatinal/distal canals(p=0.039). Biodentine had greater filling volume more than MTA Flow in the mesiolingual/distobuccal canals(p =0.049).Conclusions: MTA Flow was found as a suitable biomaterial according to the treatment time and quality of root canal fillings.