1 clenching your jaw or grinding your teeth during sleep (bruxism) â which overworks the jaw muscles and puts pressure on the joint (often caused by stress) 2  wear and tear of the inside of the jaw joint â usually caused by osteoarthritis.  injury to the jaw joint â for example, after a blow to the face or surgery.
On November 1, 2014, maximum fines for cell phone and/or texting use while driving will increase (for cell phone and texting violations committed on or after November 1, 2014): For a first offense, $50 to $200. For a second offense committed within 18 months, $50 to $250.
The National Safety Council reports that cell phone use while driving leads to 1.6 million crashes each year. Nearly 330,000 injuries occur each year from accidents caused by texting while driving. 1 out of every 4 car accidents in the United States is caused by texting and driving.