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The interest in vertical crown preparation is growing and several variations are presented in the dental literature but limited clinical outcome data exists for teeth prepared for a vertical finish line.<br /><br /> To audit clinical outcomes for 73 teeth after vertical preparation for knife-edge zirconia crowns.<br /><br /> Seventy-three teeth had knife-edge zirconia crowns placed after vertical finish line preparation. The outcomes for these teeth were analysed from a retrospective audit of clinical records.<br /><br /> The mean follow-up time was 21 months (SD 10 months; range 6-40). One tooth had to be extracted due to fracture at cervical level. One crown had to be re-made after margin fracture during try-in. No subsequent endodontic treatment was needed for any of the prepared teeth. No change in alveolar bone height was noted on radiographic follow-up. The mean bleeding score for the crowned teeth was higher than the mean bleeding score for a control tooth, but this was not statistically significant.<br /><br /> This retrospective evaluation has shown favourable outcomes for 72 teeth after vertical preparation for knife-edge crowns. Longer follow-up is needed but the present results show that the technique is a viable procedure with potential advantages.<br /><br />This retrospective evaluation has shown favourable outcomes for 72 teeth after vertical preparation for knife-edge crowns. Longer follow-up is needed but the present results show that the technique is a viable procedure with potential advantages.<br /><br /> Developmental Defects of Enamel (DDEs) comprise qualitative and/or quantitative changes to the enamel during amelogenesis. The aetiology of DDE remains inconclusive.<br /><br /> To determine the association of pre, peri, and postnatal factors with the presence of DDE.<br /><br /> Cross-sectional study with 353 children (8 to 11 years-old) in a Brazilian town.<br /><br /> One calibrated dentist assessed DDE using the Developmental Defects of Enamel Index and a questionnaire collected medical and sociodemographic data.<br /><br /> Children with at least one type of DDE were categorized into the DDE group. [https://www.selleckchem.com/products/msa-2.html MSA-2 supplier] Subtypes of DDE were also recorded.<br /><br /> 63.1% of children had at least one type of DDE. Diffuse opacity was present in 36.7%, demarcated opacity in 14.8%, and hypoplasia in 5.83% of the children. In multivariate analysis, demarcated opacities and hypoplasia were associated with birth weight ⟨ 2500g (OR = 4.82; 95% CI 1.23-1.95).<br /><br /> Low birth weight predicted DDE.<br /><br />Low birth weight predicted DDE.<br /><br /> Oral lichen planus (OLP) is a chronic autoimmune disease that frequently affects the oral mucosa. Patients with OLP tend to present with plaque accumulation which may further exacerbate the lichenoid lesion, thus plaque control may improve the quality of life of patients. The aim of this review was to test the effect of plaque control on OLP with gingival manifestations.<br /><br /> Systematic review following the PRISMA checklist. A search was conducted through Medline, Embase and the Cochrane Library Database up to March 2020 and complemented by a manual search in some relevant journals. Randomised Controlled Trials (RCTs) reporting plaque interventions and their effects in populations with gingival manifestations of OLP, with a follow-up period of at least 3 months were included. Risk of Bias was assessed using the Cochrane Collaboration Tool in Randomised Trials.<br /><br /> The initial search generated 89 sources, resulting in final inclusion of three RCTs following full-text reading. The control groups were asked to continue their regular oral hygiene routine, while test groups received additional tailored oral hygiene advice as the intervention. Two of the included papers had sufficiently similar design to be included in meta-analysis. The oral hygiene intervention was associated with improvements in clinical disease status (Escudier index) and patient-reported outcomes (OHIP-14) from baseline compared with the control group. Differences in visual analogue scores for pain between groups were not statistically different between test and control groups. Two studies were judged to have low risk of bias, while one (not included in meta-analysis) had high risk of bias.<br /><br /> Improvements in disease and patient-reported outcomes can occur as a result of oral hygiene instruction in patients with gingival manifestations of OLP.<br /><br />Improvements in disease and patient-reported outcomes can occur as a result of oral hygiene instruction in patients with gingival manifestations of OLP.In the last decade, catalytic chemical vapor deposition (CVD) has been intensively explored for the growth of single-layer graphene (SLG). Despite the scattering of guidelines and procedures, variables such as the surface texture/chemistry of catalyst metal foils, carbon feedstock, and growth process parameters have been well-scrutinized. Still, questions remain on how best to standardize the growth procedure. The possible correlation of procedures between different CVD setups is an example. Here, two thermal CVD reactors were explored to grow graphene on Cu foil. The design of these setups was entirely distinct, one being a "showerhead" cold-wall type, whereas the other represented the popular "tubular" hot-wall type. Upon standardizing the Cu foil surface, it was possible to develop a procedure for cm2 -scale SLG growth that differed only by the carrier gas flow rate used in the two reactors.The Coronavirus disease 2019 (COVID-19) pandemic profoundly impacted health care utilization. We evaluated asthma-related emergency department (ED) and inpatient health care utilization by a county-specific Medicaid population, ages 2-18, during the COVID-19 pandemic and compared it to utilization from a 3-year average including 2017-2019. All-cause ED utilization and asthma medication fill rates were evaluated during the same timeframes. Relative to the 2017-2019 3-year average, cumulative asthma-related ED visits from January through June decreased by 45.8% (p = .03) and inpatient admission rates decreased by 50.5% (p = .03). The decline in asthma-related ED utilization was greater than the reduction of overall ED use during the same time period, suggesting that the decline involved factors specific to asthma and was not due solely to avoidance of health care facilities. Fill rates for asthma controller medications decreased during this time (p = .03) and quick relief medication fill rates had no significant change (p = .