BackgroundA cross-sectional census was conducted on 994 public school students aged 6-11 years living in 3 different parts of Tafeleh Governorate—South of Jordan, to determine the prevalence, and severity of gingivitis and to evaluate the oral hygiene habits among them as a part a survey executed by National Woman’s Health Care Center. All students were examined for gingival index (GI) and plaque index (PI), information about oral hygiene habits was recorded.ResultsOnly 29.8 % had healthy gingiva, 38.5 % had mild gingivitis, 31.4 % had moderate gingivitis, and 0.3 % had severe gingivitis. The difference between both genders was not statistically significant P > 0.05. 36.8 % of the examined students never brushed their teeth. Average gingival index (GI) and average plaque index (PI) were 0.77 and 0.61 respectively.ConclusionsFair oral hygiene with mild to moderate gingivitis is highly prevalent among Tafelah school children. This study indicated that oral health status among schoolchildren in Tafelah is poor and needs to be improved. Long-term school based oral health education programme is highly recommended.Electronic supplementary materialThe online version of this article (doi:10.1186/s13104-015-1532-y) contains supplementary material, which is available to authorized users.

Aim: Platelet-rich plasma (PRP) is an autologous blood-derived material that has been used to enhance bone regeneration. Clinical studies, however, reported inconsistent outcomes. This study aimed to assess the effect of changes in leucocyte and PRP (L-PRP) composition on bone defect healing.Materials and Methods: L-PRPs were prepared using different centrifugation methods and their regenerative potential was assessed in an in-vivo rat model. Bilateral critical-size tibial bone defects were created and filled with single-spin L-PRP, double-spin L-PRP, or filtered L-PRP. Empty defects and defects treated with collagen scaffolds served as controls. Rats were euthanized after 2 weeks, and their tibias were collected and analysed using micro-CT and histology.Results: Double-spin L-PRP contained higher concentrations of platelets than singlespin L-PRP and filtered L-PRP. Filtration of single-spin L-PRP resulted in lower concentrations of minerals and metabolites. In vivo, double-spin L-PRP improved bone

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PurposeMetal removable partial dentures (RPDs) are often considered long‐term treatment options for partially edentulous patients, while acrylic resin RPDs are considered interim treatments. The aim of this review was to compare metal and acrylic resin RPDs regarding patient‐reported outcomes for partially edentulous individuals.Materials and MethodsFour databases (MEDLINE, EMBASE, CENTRAL, and Web of Science) were systematically searched for observational studies and randomized controlled trials comparing patient‐reported outcomes between metal and acrylic resin RPDs. The primary outcome was patient satisfaction. Included studies were assessed for risk of bias using the Cochrane risk of bias in nonrandomized studies of interventions tool (ROBINS‐I) and the Cochrane Collaboration Risk of Bias Tool for Randomized Controlled Trials. The level of evidence was evaluated using Oxford Center for Evidence‐based Medicine tool. A random‐effects model was used to analyze the data.ResultsA total of 15 studies were included in the systematic review; 10 in the meta‐analysis. The pooled effect size for patient satisfaction and oral health‐related quality of life showed no statistical significant difference between metal and acrylic resin dentures (0.22, 95% confidence interval –0.01, 0.45, p = 0.06; 1.45, 95% confidence interval –2.43, 5.33, p = 0.46, respectively). Compliance with using RPDs was significantly higher in patients with metal compared to patients with acrylic resin dentures (pooled odds ratio = 0.57, 95% confidence interval 0.45, 0.73, p < 0.001). Most studies had critical to serious risk of bias and low level of evidence.ConclusionsThe reviewed studies showed that there was no significant difference between metal and acrylic resin RPDs in patient satisfaction and oral health‐related quality of life. Metal dentures were associated with higher patient compliance rates and were preferred more by patients compared to acrylic resin dentures. However, the reviewed studies had low levels of evidence and therefore, high‐quality randomized controlled trials are needed to conclusively address the question of this review.