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.
Mobile Phone Offences. It is a specific offence to use a handâheld phone or similar device, when driving. Most offences will be dealt with by way of 3 penalty points and a Â£60 Fixed Penalty Notice but if the matter proceeds to a Court hearing, the fine can be as much as Â£1,000 or Â£2,500 if you were driving a bus, coach or any heavy goods vehicle.
For every 6 seconds of drive time, a driver sending or receiving a text message spends 4.6 of those seconds with their eyes off the road. This makes texting the most distracting of all cell phone related tasks. 20 percent of injury crashes in 2009 involved reports of distracted driving.