Actually, progression of periodontitis interdepends on various diseases with mediation mainly by osteoimmune responses.

From time to time, I called Kasim! at the top of my voice. But the sound died away among the tree-trunks; and I got no answer but the clevitt of a frightened night-owl.

To multiply two numbers, add their logs.

He knew what to say; he knew also, when to leave off, — a continence which is practised by few writers.