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Minerva Stomatologica 2010 March;59(3):89-101


language: English, Italian

Clinical and computerized evaluation in study of temporo-mandibular joint intracapsular disease

Ciavarella D. 1, Mastrovincenzo M. 2, Sabatucci A. 2, Parziale V., Granatelli F. 3, Violante F. 1, Bossù M. 4, Lo Muzio L. 1, Chimenti C. 3

1 Department of Surgical Sciences, Faculty of Medicine, School of Dentistry, University of Foggia, Italy; 2 Department of Oral Sciences, Faculty of Medicine, School of Dentistry, Polytechnic, University of Marche, Italy; 3 Department of Surgical Sciences, Faculty of Medicine, School of Dentistry, University of L’ Aquila, Italy; 4 Department of Paediatric Dentistry, La Sapienza University of Rome, Rome, Italy


AIM: In this work authors show a diagnostic criteria in study of TMID: Neuro occlusal clinical evaluation (NOE), T-Scan 2 system and surface Electromyography (sEMG)
METHODS: Nine patients of 25-30 years old with TMID problem and 9 healthy group control have been selected and examined. On each patients it has been performed NOE, T-Scan and sEMG test. NOE has been calculated on each patient photos lateral mandibular excursion angle called: masticatory functional angle (AFM). T-Scan System is a computerized occlusal analyzer that provide in-depth understanding of the overall balance of the occlusion. At the same time of T-Scan record sEMG tests, in resting position and in maximum clench, have been performed.
RESULTS:. In healthy control there were no AFM difference. In no healthy group there were difference between the two AFM greater than 6°. T-Scan COF showed how in healthy group control there was never a difference of COF greater than 5%. In no healthy group the difference were greater than 5% P<0.05. T-scan showed difference of time force in maximum intercuspidation (MIFT) in healthy respect TMID patients. In healthy patients MIFT was higher than TMID patiernts P<0.05. sEMG test showed in non healthy group a great asymmetrical activation of masseter (MM). MM activation were greater on side affected by joint sound than the balance side P<0.001. sEMG show how in TMID patients maximum masseter activation is always lower than maximum masseter activation of healthy subjects P<0.001.
CONCLUSION:. Neuro occlusal clinical evaluation (NOE) in TMID patients is supported by instrumental evaluation.

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