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- Floyd SLv 71 decade agoFavorite Answer
TWO...one on each side of your face where the lower jaw hinges with the skull....The trem TMJ refers to that jaw joint.
The Denture Pro.
Source(s): F.Spiva Jr. CDT MDT CD <thedenturepro@aol.com> - 1 decade ago
TMJ is short for Temporomandibular Joint. It's the jaw joint right in front of your ears.
So of course, you just have the two.
Source(s): Got the spelling from TMJhope.org
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