Lichen planus is a chronic autoimmune, mucocutaneous disease, which can affect the oral mucosa, skin, genital mucosa, scalp and nails, and commonly seen in adults. Childhood lichen planus is a rare entity, which is characterized by skin lesions with the oral involvement being extremely uncommon. There are only a few reports on this subject in the literature. Early and correct diagnosis with adequate management is very important to avoid further complications as it is a pre-malignant condition. Herewith, we report a seven-year-old girl having erosive oral lichen planus with cutaneous involvement, which responded well to the treatment. This is to add another case of lichen planus in a child and to emphasize its consideration in the differential diagnosis of oral mucosal red and white lesions in children.
Introduction:A material which is used as a base must have an adequate seal, be able to prevent leakage, and remain in place under dislodging forces, such as chewing pressure and also having adhesive properties to restorative materials and to the dentine. Hence, it is important to know the bond strength in clinical practice. Aim and objective: The aim and objective of this study was to evaluate the shear bond strength (SBS) of the glass ionomer cement (GIC) and resin composite with Biodentine as a base. Materials and methods: Acrylic blocks with a central hole measuring 2 mm in depth and 5 mm in diameter were prepared. A total of 30 samples were prepared, the holes were then filled with Biodentine and the samples were randomly divided into 3 subgroups consisting 10 specimens each: group I: methacrylate-based (MB) composite, group II: Fuji type II resin-modified GIC (RMGIC), and group III: Fuji type IX GIC. For the SBS test, each block was secured in a universal testing machine and the values were compared by using one-way analysis of variance. Results: Highest bond strength of 1.495 ± 0.05 MPa was observed in group I (i.e., MB composite), followed by group II with 1.139 ± 0.02 MPa (i.e., type II RMGIC), and the lowest bond strength of 0.80 ± 0.05 MPa observed in group III (i.e., Fuji IX GIC). Conclusion:The adhesion of Biodentine to MB composite surface appears to be greater compared to that of RMGIC and GIC.
Background: Endodontic irrigants have an important role in endodontic treatment of primary teeth, owing to their complex anatomy. Quercetin is a natural flavonoid that exhibits significant antimicrobial properties. Objective: To evaluate the antimicrobial activity of 0.2% chlorhexidine, 1% (w/v) quercetin, and 2% (w/v) quercetin against endodontic pathogens in primary molars. Materials and methods: A total of 15 patients of 4-7 years of age with nonvital carious primary molars were selected. A sample from the root canal was obtained using number 15 paper point. Antimicrobial activity was measured using the disk diffusion method, for the following solutions: group I: 0.2% chlorhexidine solution, group II: 1% w/v quercetin solution, and group III: 2% w/v quercetin solution. For each sample, microbial culture was done under the microaerophilic condition. After 24 hours, the maximum inhibition zone was recorded in millimeters. Results: The highest inhibition was shown by group I, 13.13 ± 0.74, followed by group III, 12.00 ± 0.65, and the lowest in group II, i.e., 8.53 ± 0.63. On comparison between groups, statistically significant difference was noted. Conclusion: Maximum antimicrobial activity was shown by 0.2% chlorhexidine, followed by 2% quercetin that showed significant antimicrobial activity against endodontic pathogens in primary molars.
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