BACKGROUND The surgical techniques used to treat gingival recession have changed considerably in the last 50 years. The envelope technique described nearly 20 years ago still offers an excellent alternative for the problem of recession. The purpose of this retrospective study is to show the results of 115 recession sites treated in 50 patients using the envelope technique. METHODS One hundred...

background and aim . gingival recession as the apical migration of the gingival margin that results in exposure of the cementoenamel junction (cej) and the root surface. in this case series we aimed to demonstrate a combination technique using semilunar coronally positioned flap with free gingival graft for root coverage. materials and methods . a total of 12 healthy subjects, 25-45 years of ag...

I propose a framework for the assessment of current business conditions using a factor-augmented autoregressive probit model where the dependent variable is the state of the economy as defined by the NBER. Results show that latent common factors estimated by principal components analysis from a large number of macroeconomic series have important predictive power for NBER recession dates. The mo...

This study evaluates the long-term cost of unemployment in Finland by focusing on the deep recession period of the early 1990s. The number of plant closures increased sharply during the recession and the unemployment rate rose over 13 percentage points. In the analysis, prime working age men who face unemployment due to plant closure are matched on those who remained employed during the recessi...

excessive alveolar bone resorption is commonly found when teeth are extracted. this is a problem in anterior part of mouth because it will result in an unaesthetic pontic on a narrow hollowed out alveolar ridge. yet, another problem is gingival recession and root exposure in adjacent teeth which represent a therapeutic problem to the clinician. use of acellular dermal matrix graft is an appropr...

The conventional wisdom is that mortality falls when the economy temporarily improves and increases when it weakens. This strong apriori belief has engendered substantial attention to be paid to analyses indicating a countercyclical variation in deaths and excessive scepticism to countervailing evidence. However, this view is beginning to change as recent research, often using more sophisticate...

BACKGROUND To curb the tobacco epidemic, successful implementation of tobacco control measures should take into account how specific demographic groups react to particular policies. In 2005-2010, Ukraine experienced a sharp decline in smoking prevalence. In 2008-2010, several excise tax hikes combined with the economic recession resulted in a sharp reduction of tobacco product affordability, bu...

The Great Recession led to large increases in unemployment rates and unemployment durations for workers of all ages, but durations rose far more for older workers than for younger workers. This difference was apparent both during and after the recession, fueling speculation that age discrimination played a role. Research indicates that in states with stronger age discrimination protections, old...

We introduce simple tools from geometric convexity to analyze capturetype (or “Lion and Man”) pursuit problems in unbounded domains. The main result is a necessary and sufficient condition for eventual capture in equal-speed discrete-time multi-pursuer capture games on convex Euclidean domains of arbitrary dimension and shape. This condition is presented in terms of recession sets in unit tange...

This study examines the differential effects of the unemployment rate at labor market entry, defined as the time of leaving school, on subsequent wages across gender and race using the National Longitudinal Survey of Youth 79. Results suggest that the negative effect of a recession at entry on wages is weaker for women. The differences between blacks and whites are not statistically significant...