To quantify the discolouration of temporary acetal resins in vivo, based on weeks follow-up and salivary pH three thirds tooth. find out if final CIELAB coordinates can be predicted from initial colour coordinates, pH, situation (in thirds) follow-up. Colour (L, C, h) were recorded by spectrophotometry 13 participants fitted with hybrid provisional complete dentures made resin. recordings day p...

An optimized embedded 5(3) pair of explicit Runge–Kutta–Nyström methods with four stages using phase-fitted and amplification-fitted techniques is developed in this paper. The new adapted can exactly integrate (except round-off errors) the common test: y?=?w2y. local truncation error method derived, we show that order convergence maintained. stability analysis addressed, demonstrate absolutely ...

Detailed descriptions of atomic coordinates and motions are required for an understanding of protein dynamics and their relation to molecular recognition, catalytic function, and allostery. Historically, NMR relaxation measurements have played a dominant role in the determination of the amplitudes and timescales (picosecond-nanosecond) of bond vector fluctuations, whereas high-resolution X-ray ...