If you open your mouth very wide as you yawn, your jaw may be displaced. Another explanation is a temporo-mandibular joint (TMJ) inflammation, this is the joint between the lower and upper jaws, you can feel it just in front of your ears (feel it as you open your mouth), if it hurts when you apply mild pressure on it then it may be inflamed. A common cause is bruxism (teeth grinding during sleep). Another cause can be poor sleep positioning.
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Annual Checkup
It is recommended that all individuals see a Family Doctor for a full medical examination annually. Adults should get their blood pressure checked (US Preventive Task Force), a flu vaccine (CDC) and more each year.
The American Dental Association recommends dental cleanings for adults at least twice annually. Some stains can only be removed by a professional cleaning.
It’s recommended by the American Academy of Ophthalmology that every adult between the ages of 18 and 80 does an eye examination at least once every two years.
It's recommended by the American Cancer Association that every adult between the age of 20 and 80 does an annual skin screening by a licensed dermatologist.
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