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.
in Blog. A tingling sensation in the gums is known as gum paresthesia. The condition usually begins with a tingling sensation and may progress to numbness, or you may experience a combination of numbness with a tingling when biting down or chewing. This occurs as the result of a sensory nerve becoming damaged.n Blog. A tingling sensation in the gums is known as gum paresthesia. The condition usually begins with a tingling sensation and may progress to numbness, or you may experience a combination of numbness with a tingling when biting down or chewing. This occurs as the result of a sensory nerve becoming damaged.