ObjectiveThe demanding nature of dental education, both academically and clinically, results in higher levels of perceived stress among its students. The aim of this study was to determine how dental students at the College of Dentistry, University of Saskatchewan perceived stress. During the 2013–2014 academic year, all students were asked to complete a modified dental environmental survey (DES).ResultsOf the 111 students enrolled at the College that year 92 completed the survey (response rate = 83%). In general, female students reported higher stress levels than males. Higher stress levels were associated with living away from home, concerns about manual dexterity and the transition from pre-clinical to clinical studies. Additionally, students who enter dental school with higher debt loads (> 100,000) report high stress levels relating to finances. This study found that financial and clinical workloads result in high stress levels among dental students.Electronic supplementary materialThe online version of this article (10.1186/s13104-017-2979-9) contains supplementary material, which is available to authorized users.

– The prevalence of alveolar bone loss was investigated in 2813, 15‐ and 16‐year‐old Danish schoolchildren using bitewing radiographs. The interproximal spaces of the mesial and distal aspects of the first molar tech were examined. Inly defects with depths of more than 2 mm were considered periodontal bone loss. Radiographic evidence of bone resorption was found in 48 children. When evaluated clinically, 42 out of the 48 children with radiographic sings of bone loss demonstrated clinical loss of attachment. Only four children (0.1%) had the characteristic radiographic features of juvenile periodontitis. Loss of attachment of more than 2 mm was oberved in these children.

This study aimed to identify the risk determinants of caries and record oral hygiene status in recent immigrant and refugee children residing in Saskatoon and Regina, Saskatchewan, Canada. Convenience samples of 133, 3–15 year-old recent immigrant and refugee children, and 86 adult guardians were recruited. Clinical examination of children and survey of their guardians explored the presence of at least one decayed tooth in the child’s mouth; and the knowledge, attitudes, behaviors, among other aspects in adult participants. Refugee children had statistically significant higher decayed, missing, filled teeth (DMFT) scores (mean dmft/DMFT score 5.80 ± 4.24) than immigrant children (mean dmft/DMFT score 3.52 ± 3.78 (p < 0.001). Adult immigrants had significantly higher proficiency in English language, knowledge about preventive components like fluoride and dental floss compared to refugee adults. The results of this study confirm the poorer state of oral health among refugee and immigrant children compared to Canadian children.

– The purpose of this study was to determine the prevalence of periodontal disease in teenagers. The survey was conducted on 325 children aged 14,15 and 16 years, living in Aarhus, Denmark. Pocket depth and loss of attachment were measured in mm at the maxillary and mandibular first molars and incisors. Plaque, calculus and gingival bleeding on probing were recorded. A total of 221 children (68%) had 4–5 mm deep pockets and 19 children (5.8%) had pockets deeper than 5 mm on at least one tooth Approximately 11% of the subjects showed loss of attachment on at least on tooth. The frequency of surfaces with plaque and gingivitis was high in all three age groups. Plaque, gingivitis, deepened pockets and loss of attachment were most frequently observed on interproximal surfaces. No significant differences were observed between the sexes with regard to periodontal disease.

This report describes 9 cases presenting exostosis at mandibular and maxillary sites where autogenous gingival grafts have been used to increase the amount of attached gingiva. The exostoses were recognized during routine dental examinations and identified by palpation, horizontal sounding, occlusal radiographs, and in one case by histologic examination. Only in three cases was there a surgical removal of exostosis and recurrence was not observed during a follow-up evaluation. The remainder of the cases were not treated and the exostoses appeared to have limited growth. Apparently, a correlation between the presence of tori and the development of exostosis could not be established in these series of case reports, but a possible explanation with respect to the mechanism of bone formation is discussed along with the clinical implications of this interesting clinical finding.