Did John McCain Admit He Was a 'War Criminal'? Rumors claim that the Arizona senator admitted that he was a 'war criminal' and that was he pardoned by President Nixon for his crimes. CLAIM. John McCain admitted that he was a 'war criminal' and was pardoned by President Nixon for his crimes. See Example(s) EXAMPLES Collected via e-mail, February 2008.
Occasionally, an impacted tooth causes sufficient pressure on the roots of adjacent teeth causing it to resorb. An impacted tooth occupies space that is usually filled with bone. This weakens that area of bone and renders the jaw more susceptible to fracture.
Dental decay. This is the most common underlying cause. Nerve damage to teeth. This can be from decay, deep fillings or trauma to a tooth. Can lead to abscess (click here for information on such tooth infection types). Broken filling. Cracked tooth.