Malocclusion and bruxism are the most common causes of TMJ disorders. 1  Emotional stress is often the underlying cause of a TMJ disorder, as it can contribute to people either consciously or unconsciously tightening facial and jaw muscles and grinding or clenching their teeth.
1 Why is illegal immigration a controversial issue A) People think that the current laws on immigration address the issue well. B) There are far fewer illegal immigrants each year than naturalized citizens. 2  Why is illegal immigration a controversial issue A) People think that the current laws on immigration address the issue well.
1/02/2007 @ 2:30PM. Immigration's Impact. Illegal immigration into the United States has sparked heated debate in Congress, roiled the two main political parties and prompted hundreds of thousands of immigrant supporters to take to the streets recently in peaceful demonstrations nationwide.