The aim of this study was to evaluate the role of occlusal factors to determine the extent of their role in temporomandibular disorders (TMD). Two groups were selected: a patient group (I) of 100 patients with TMD problems (pain and clicking) and a control group (II) of 100. Each individual had to have 28 permanent teeth. A clinical evaluation was conducted and the models were evaluated according to the criteria of the Angle Classes and the Reinhardt Index, with the number of permanent teeth (A), the number of the correctly (R) and the number of incorrectly (F) related antagonist pairs of teeth. The individuals had to observe the preference of their chewing side. The results of this investigation revealed: the number of F can be used as an occlusal indicator for possible functional disorders (p=0.041). Individuals with one chewing side have more signs and symptoms of TMD (p<6.22x10(-9)).
Taking as its starting point the often postulated criticism of Pont's Index, the intent of the study was to develop a diagnostic procedure which took into consideration the objection that the Pont Index doesn't take the shape of the patient's skull into consideration. On the basis of the data obtained from the models and anthropological measurements of 50 adult subjects with fairly eugnathic dentition, the first step was to follow Pont and study which skull size exhibited the highest correlation to the posterior dental arch. Of all the relevant sizes the zygomatic arch width exhibited the highest correlation. Reference values for the posterior dental arch width, which were obtained with the help of regression analysis, which took into consideration both the total upper incisor width and zygomatic arch width as variables, were then established. These reference values were conclusively shown to have the best prognostic value. From this it can be concluded that a comprehensive orthodontic diagnosis should include an improved assessment of dental arch width.
A Simple Therapy for Dual Bite -A Case ReportRotraut Rei nhardt, Dr. med.Po li klini k fOr Ki eferorthop ad ie* ZMK-Klinik del' jo hannes Gutenberg-Universitat M ain z Au gustuspl atz 2 55 13 1 M ain z, German y E-m ail: rreinh
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