Objective.  We set out to evaluate factors affecting dental fear in French children. Methods.  Dental fear was evaluated using a visual analogue scale (DF-VAS) in a group of 1303 French children (681 boys and 622 girls) aged 5–11 years (mean: 8.12 years, SD: 1.42 years). Indicators of caries and oral hygiene were evaluated on dental examination. Indicators of well-being related to oral health, dental experience, and oral health education were collected via a structured interview. Results.  Dental fear was scored low in 75.7% (DF-VAS 0–3), moderate in 16.7% (DF-VAS 4–6), and high in 7.6% (DF-VAS 7–10). DF-VAS decreased

statistically with experience of a prior dental visit. Children who had at least one decayed tooth presented a higher level of dental fear than those with no decay, while children with fillings were significantly less anxious than those without previous UK-371804 manufacturer dental care. Conclusions.  This study shows that for children aged 5–12 years, prior experience of the dental setting can act as a positive component of dental fear. “
“International Journal of Paediatric Dentistry 2012; 22: 110–115 Background.  The use of external sources

of energy may accelerate the setting rate of glass ionomer cements (GICs) allowing MS-275 better initial mechanical properties. Aim.  To investigate the influence of ultrasound and halogen light on the microleakage and hardness of enamel adjacent to GIC restorations, after artificial caries challenge. Design.  Cavities were prepared in 60 primary canines, restored with GIC, and randomly distributed into three groups:

control group (CG), light group (LG) – irradiation with a halogen light-curing unit for 60 s, and ultrasonic group (UG) – application of ultrasonic scaler device for 15 s. All specimens were then submitted to a cariogenic challenge in a pH cycling model. Half of sample in each group were immersed in methylene blue for 4 h and sectioned for dye penetration analysis. The remaining specimens were submitted to Knoop cross-sectional microhardness assessments, and mineral changes were calculated for adjacent enamel. Results.  Data were compared using Kruskal–Wallis test and two-way ANOVA with 5% significance. these Higher dye penetration was observed for the UG (P < 0.01). No significant mineral changes were observed between groups (P = 0.844). Conclusion.  The use of halogen light-curing unit does not seem to interfere with the properties of GICs, whereas the use of ultrasound can affect its marginal sealing. "
“International Journal of Paediatric Dentistry 2011; 22: 27–36 Background.  Prader–Willi syndrome (PWS) is a rare complex multisystemic genetic disorder. Aim.  The objective of this study was to provide a systematic assessment of whole saliva secretion and oral manifestations associated with PWS. Design.  Fifty individuals (5–40 years) with PWS and an age- and sex-matched control group were included. Whole saliva was collected.