Book excerpt: Excerpt from Dominion Dental Journal, 1916, Vol. 28: Official Organ of All Dental Associations in Canada At the risk of being a little tedious, I desire to go into this phase of the question as briefly as possible. Leaving out of the question, ptomaines and toxins. There are two ways by which micro-organisms bred in the mouth and in structures composing the mouth, can do a patient harm. One is by being absorbed into or forced to penetrate oral tissues and thereby find their way directly into the blood stream and the other is by being discharged into or cultured in the mouth cavity, taken as a result into the stomach and carried on into the intestines. Each of these conditions will have its own peculiar results. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.