Satellite and ground observations detected large variability in nitrogen oxides (NOx) during the 2008 economic recession, but the impact of the recession on air quality has not been quantified. This study combines observed NOx trends and a regional chemical transport model to quantify the impact of the recession on surface ozone (O3) levels over the continental United States. The impact is quan...

background: the aim of this clinical trial study was to clinically evaluate the use of enamel matrix protein derivative combined with the coronally positioned fl ap to treat gingival recession compared to the subepithelial connective tissue graft by a new method to obtain denuded root surface area. materials and methods: thirteen patients, each with two or more similar bilateral miller class i ...

OBJECTIVE To evaluate the rate of abusive head trauma (AHT) in 3 regions of the United States before and during an economic recession and assess whether there is a relationship between the rate of AHT and county-level unemployment rates. METHODS Clinical data were collected for AHT cases diagnosed in children younger than 5 years from January 1, 2004 until June 30, 2009, by hospital-based chi...

background: gingival recession is the most common and undesirable condition of the gingiva. the aim of study was to investigate the aetiology and severity of gingival recession in a greek adult population sample.     methods: the study was performed on 165 males and 179 females, 18-68 years old who sought dental treatment in a private dental practice and showed gingival recession. all subjects ...

statement of problem: one of the main goals in periodontal therapy is the correction of recession defects; therefore the efficacy and predictability of the various techniques are important considerations for clinicians. purpose: the purpose of this pilot study was to compare the outcomes of gingival recession therapy using the semilunar coronally repositioned flap (scrf) alone and in conjunctio...

The purpose of this study was to determine the risk factors for root surface caries in the elderly and to evaluate the factors associated with gingival recession, one of the main risk factors for root surface caries. A total of 153 elderly people (35 men, 118 women) aged between 60 and 94 years (73.5+/-7.5 years) were surveyed. All participants were relatively healthy elderly who did not need s...

OBJECTIVE To evaluate the success rate of surgical corrections of constant and intermittent exotropias. STUDY DESIGN A case series. PLACE AND DURATION OF STUDY Al-Ibrahim Eye Hospital, Karachi, from July 2011 to December 2012. METHODOLOGY Patients having primary exotropia (deviation 15 - 45 prism diopters [PD]) were included. Patients with either constant exotropia or basic intermittent e...