We evaluated the association between radiographically assessed extension and density of root canal fillings and postoperative apical radiolucencies (ARs) by using data from 288 participants in the Veterans Affairs Dental Longitudinal Study. Study subjects were not Veterans Affairs patients; all received their medical and dental care in the private sector. Generalized estimating equations were u...

Pattern-avoiding binary fillings of Young diagrams were first defined and studied by A. Postnikov. Important examples are Γ -diagrams, that are related to decorated permutations and positive Grassman cells. Other examples are acyclic orientations of a graph defined from the Young diagram. Using reccurence relations, he could prove that the numbers of such fillings are equal, for these two examp...

Although a combinatorial interpretation of Macdonald polynomials involving fillings of Ferrers diagrams of partitions has been known since 2004, a general combinatorial proof of a well-known symmetry property of these polynomials remains elusive. Our paper frames the problem and discusses an already-solved special case, that of one-dimensional (single-row or single-column) Ferrers diagrams, and...

In a survey of 640 human subjects, a subgroup of 356 persons without recent exposure to antibiotics demonstrated that those with a high prevalence of Hg resistance in their intestinal floras were significantly more likely to also have resistance to two or more antibiotics. This observation led us to consider the possibility that mercury released from amalgam ("silver") dental restorations might...

We propose a major index statistic on 01-fillings of moon polyominoes which, when specialized to certain shapes, reduces to the major index for permutations and set partitions. We consider the set F(M, s;A) of all 01-fillings of a moon polyomino M with given column sum s whose empty rows are A, and prove that this major index has the same distribution as the number of north-east chains, which a...

We exhibit a canonical connection between maximal (0, 1)-fillings of a moon polyomino avoiding north-east chains of a given length and reduced pipe dreams of a certain permutation. Following this approach we show that the simplicial complex of such maximal fillings is a vertex-decomposable, and thus shellable, sphere. In particular, this implies a positivity result for Schubert polynomials. Mor...

The aim of this study was to assess the impact of environmental factors: cigarette smoking, dental amalgam fillings, eating habits and osteoporosis, on the concentrations of copper (Cu), zinc (Zn), lead (Pb), cadmium (Cd) and mercury (Hg) in the bone of hip joint in patients in the Orthopedics Clinic in Szczecin, Poland. Amalgam dental fillings had an effect on the Cu concentration in the carti...

Lip inflammation may manifest as mainly reversible cheilitis, irreversible, or cheilitis connected to dermatoses systemic diseases. Therefore, knowing a patient’s medical history is important, especially whether their lip lesions are temporary, recurrent, persistent. Sometimes temporary contributing factors, such climate and weather conditions, can be identified avoided—exposure extreme conditi...

OBJECTIVE Individuals with diabetes pay increased premiums and experience limited coverage when taking out accident insurance, despite the lack of scientific support for this practice. The aim of the present study was to analyze whether diabetic individuals have an increased risk of accident or an increased risk of permanent disability after an accident, compared with two nondiabetic groups. ...

BACKGROUND A low socioeconomic position (SEP) is consistently associated with ill health, sickness absence (SA) and permanent disability, but studies among young employees are lacking. We examined the interrelationships between education, occupational class and income as determinants of SA among 25-34-year-old employees. We also examined, whether the association between SEP and SA varied over t...