In figure 1 above, the more electronegative Oxygen atoms pull electron density towards themselves as demonstrated by the arrows. Carbon Dioxide is not polar however because of its linear geometry. A molecule's overall dipole is directional, and is given by the vector sum of the dipoles between the atoms.
There are a number of factors that can cause your gums to recede, including: 1  Periodontal diseases. 2  These are bacterial gum infections that destroy gum tissue and supporting bone that hold your teeth in place. 3  Gum disease is the main cause of gum recession.
A. A. Gum recession is the process in which the margin of the gum tissue that surrounds the teeth wears away, or pulls back, exposing more of the tooth, or the tooth 's root. When gum recession occurs, pockets, or gaps, form between the teeth and gum line, making it easy for disease-causing bacteria to build up.here are a number of factors that can cause your gums to recede, including: Periodontal diseases. These are bacterial gum infections that destroy gum tissue and supporting bone that hold your teeth in place. Gum disease is the main cause of gum recession. Your genes.