The purpose of this study was to estimate primary diagnosis, prediction of prognosis and recognition of treatment progress for treatment of TMD patients through measuring the various ranges of mandibular movement in normal and TMDs patients using
Mandibular Kinesiograph K-6 Diagnostic System.
In normal group, 20 adults were selected, who have normal or class I molar relationship, and have no symptoms on TMJ and masticatory muscles, and have restorations less than 3 surfaces on each tooth, and have no other prosthetic restoration. In
Patients
group, We selected 31 outpatients who were confirmed to TMDs with clinical examination and radiographic findings.
@ES The obtained results were as follows ;
@EN 1. In Maximal opening, patient group was showed the limitation of vertical movement range(P<0.01) and larger lateral deviation than in normal group(P<0.01). And actual 3 dimensional displacement of opening was calculated larger in normal
group(P<0.05).
2. In protrusive movement, patient group was showed the limitation of anteroposterior movement range(P<0.001) and larger lateral deviation than in normal group(P<0.001). And actual 3 dimensional displacement of protrusion was calculated larger
in
normal group(P<0.001).
3. In lateral maxium excursion, compared with normal group patient group was no significant differences to affected side, but was showed the limitation of lateral movement to unaffected side(P<0.001).
4. There was no significant difference in movement velocity of opening and closing in both groups.
5. Mandibular movement from physiologic rest position to centric occlusion was moved more anteroposteriorly in patient group.
6. Mandibular movement from centric relation to centric occlusion was no significant difference in both groups.
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