When an amalgam filling is a bit high (the bite is the only place we touch) or when a newly installed crown provokes us that same feeling, we are witnessing an occlusal interference.

If not corrected in time, excessive horizontal effort made to try to smooth it or correct it not only trigger an inflammatory response in the first instance, but destructive in the tooth attachment apparatus.

How to detect the injury?
Radiographically. There is a widening of the periodontal ligament (which attaches the tooth to the bone) and lower density of the bone.

Clinically. Occlusal trauma (so called induced injury) can reveal an increased mobility of teeth, abnormal wear, sometimes with a fracture in a tooth cusp. In circumstances, opportunity is accompanied by discomfort in biting pressure and sensitivity to heat, cold and sweets.

Also the gums, under the presence of occlusal trauma are affected by migrating to the root and periodontal pockets forming. When the injury is more serious, may affect the temporomandibular joint (TMJ), this joint allows rotation and translation of our jaw.

Signs such as crepitus (cracking in the joint), subluxation (displacement of the jaw) movement of the jaw off, reduced mouth opening, indicate the progress of the injury.

Many patients comment about frequent headaches or ear disorder and some speak of pains in the muscles attached to the head: although surprisingly, these complaints are related to amalgam fillings or crowns incorrectly installed in the mouth.

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