The phrase 'upper and lower teeth' is correct and usable in written English.
It can be used to refer to the two sets of teeth found in the human mouth--the upper teeth and the lower teeth. For example, "Please open your mouth wide so I can brush your upper and lower teeth."
TMJ problems were originally thought to stem from dental malocclusion — upper and lower teeth misalignment — and improper jaw position.
Upper and lower teeth alternated in position when the jaw was closed; they did not occlude directly.
In conjunction with the cheeks, it is able to guide and maintain food between the upper and lower teeth until mastication is complete.
The exact cause is not known, but recent evidence has de-emphasized the role of occlusion, or the way the upper and lower teeth come together.
A new study reports that a sperm whale that lived 12 million years ago, in the Miocene Epoch, did have upper and lower teeth.
In the 1960s, he explains, bruxism was thought to be the body's response to "malocclusion," or problems with how the upper and lower teeth fit together; but that theory was discredited for lack of clinical evidence.
The dentist had just completed the last of a full reconstruction on her upper and lower teeth, and the patient was enjoying a foot rub from the massage therapist on his staff.
During sleep bruxism, he explained, the upper and lower teeth may come into direct contact as much as 40 minutes per hour, and — for example, on the first molar — with a force of about 250 pounds.
There is a big difference between the two brands: While the Makkar product must be gripped between the upper and lower teeth, the Under Armour one sits only on the lower teeth.
In regions where Ziploc bags are in short supply, the Centers for Disease Control urges coughers to cover their mouths by making a fist and inserting their knuckles firmly between the upper and lower teeth for the duration of the cough and/or coughs.
Silicon impressions were taken of their upper and lower teeth using the dual-impression method.
