Tooth contact in mediotrusion as well as the signs and symptoms of per
iodontal and mandibular dysfunction were recorded in healthy patients
aged between 20 and 31 with Angle class I or II. Non-functional side c
ontact (NFSC) was found in 94% of the patients, indicating that it is
a common phenomenon. In cases of NFSC, the entire range of movement, a
nd not only the final stage of tip-to-tip contact on the working side,
should be recorded. Slight positive mobility with tooth faceting, as
compared to the adjacent and contralateral teeth, was observed in 56 p
atients. There was no correlation between mediotrusion and mandibular
dysfunction. The cumulative effects of NFSC are not well documented, a
nd longitudinal follow-up studies should be carried out to clarify the
se.