1,721,165 research outputs found

    Imaging dell’articolazione temporo-mandibolare

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    Le patologie dell'Articolazione Temporo-Mandibolare (ATM) rappresentano un ampio capitolo all'interno dei Disordini Temporo-mandibolari (DTM), eterogeneo gruppo di condizioni che sono spesso causa di dolore e/o disfunzione in sede oro-facciale. La diagnosi di tali disturbi si basa essenzialmente sull'integrazione dei dati anamnestici con quelli ricavati da un accurato esame clinico. Tuttavia talvolta si rende necessario l'impiego di tecniche di rappresentazione per immagini ai fini della conferma diagnostica o della pianificazione terapeutica. L'imponente progresso tecnologico degli ultimi 20 anni ha rivoluzionato il ruolo dell'imaging nella diagnostica di tali disordini e nello studio dell'ATM. La recente applicazione di metodiche come la Risonanza Magnetica o la Tomografia Computerizzata ha consentito la risoluzione di diversi problemi clinici e medicolegali. Il ruolo di tali tecniche, essendo ancora oggetto di numerose controversie, necessita tuttavia di ulteriori chiarimenti che vengono affrontati in questo capitolo di libro

    Research diagnostic criteria for temporomandibular disorders (rdc /tmd) axis I diagnoses in an italian patient population

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    The aim of this work was twofold: to evaluate the prevalence of different Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) diagnosis in an Italian population of subjects seeking TMD treatment in a tertiary clinic; and to compare data with those from similar studies in the literature. Participants in this study were 433 consecutive patients seeking TMD treatment at the Section of Prosthetic Dentistry, Department of Neuroscience, University of Pisa, Italy; mean age of patients was 38.8 years, with a female:male ratio of 2.6:1 (276 females, 73.2%; 101 males, 26.8%). RDC/TMD guidelines for examination were adopted to assign axis I diagnosis. The prevalence of RDC/TMD diagnoses was 38.2% (144/377) for group I disorders (muscle disorders), 52.3% (197/377) for group II disorders (disc displacements), and 52.6% (198/377) for group III disorders (arthralgia, osteoarthritis, osteoarthrosis). The present investigation provided findings that, compared and integrated with literature data, can be useful to create a world-wide database, in accordance with the nature of the RDC/TMD classification system

    Occlusal features and masticatory musclesactivity. A review of electromyographic studies

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    Since there is no consensus on the association between occlusion and temporomandibular disorders (TMDs), the aim of the present paper was to conduct a review of electromyographic studies, in order to asses the relationship between various occlusal features and masticatory muscles' activity. MATERIAL AND METHODS. An exhaustive MEDLINE computer search was performed to identify all experimental studies present in the English literature describing the relationship between the electromyographyc evaluation of patients and their occlusal morphology. RESULTS. The search methodology provided a total of 102 abstracts and from these 11 full reports were required as full text. Of the 11 articles selected, 8 studied the variation of the muscular activity as a consequence of the experimental introduction of occlusal disturbances whereas the remaining three studies estimated the electrical muscular characteristics without any artificial alteration of the occlusal morphology. CONCLUSION. The results obtained seem to suggest that occlusal features can affect the electrical signals recordings of masticatory muscles. Further researches are strongly requested to realize if this altered muscular activity can turns in the occurrence of TMDs
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