Objective: The aim of this study was to evaluate the cleaning effectiveness achieved with two reciprocating single-file systems in severely curved root canals: Reciproc and WaveOne. Materials and Methods: Twenty-five mesial ...

The social capital literature has focused on the functional and structural properties of social relations, partially neglecting the way in which they are experienced by individuals. Drawing on anthropological and social ...

We present criteria for determining irreducibility of reciprocal polynomials over the field of rational numbers. We also obtain some combinatorial results concerning the irreducibility of reciprocal polynomials. As a ...

As compared with continuous rotary systems, reciprocating motion is believed to increase the fatigue resistance of NiTi instruments. We compared the cyclic fatigue and torsional resistance of reciprocating single-file ...

We propose a game-theoretic model of reciprocity and trust that incorporates personality traits. In the model, positive and negative reciprocity are “reciprocal preferences:” parameters of heterogeneous utility functions ...

The presence of direct reciprocity in animals is a debated topic, because, despite its evolutionary plausibility, it isbelieved to be uncommon. Some authors claim that stable reciprocal exchanges require sophisticated ...

The purpose of this paper is twofold. Firstly we investigate the distribution, simplicity and monotonicity of the zeros around the unit circle and real line of the real self-reciprocal polynomials Rn(λ)(z)=1+λ(z+z2+...+zn-1)+zn, ...

Objective: To compare the efficacy of Reciproc (reciprocating) and MTwo (rotary) in the filling material removal during endodontic retreatment. Methods: Thirty simulated root canals (plastic blocks) were prepared and filled. ...

Crosses between different genotypes and even between different species arecommonly used in plant breeding programs. Reciprocal hybrids are obtained bychanging the cross direction (or the sexual role) of parental genotypes ...