1,720,971 research outputs found
TEMPORO-MANDIBULAR JOINT KINETICS AND CHEWING CYCLES IN HEALTHY CHILDREN. A6-YEAR FOLLOW-UP
No full textContributo della risonanza magnetica in un caso di rara localizzazione ischiatica di osteoma osteoide
No full textOverjet and Overbite Influence on Cyclic Masticatory Movements: A CT Study
No full textAim. To determine whether a relationship exists between the linear measurements of overjet and overbite and the interincisal space delimited by the morphology of the upper and lower incisors. Method and Materials. 30 subjects (age range from 14.1 to 34.8 years, with a median age of 23.5 years and sex ratio F/M: 5/10) with overjet and overbite equal to 2 mm were selected from a group of 381 individuals with a full and well-aligned dentition, no previous dental treatment, and no signs or symptoms indicative of temporomandibular disorder. Computed Tomography images of vinyl polysiloxane impressions of the 30 subjects' anterior teeth were acquired. The interincisal space was defined as Immediate Overjet Angle and was calculated on the Computed Tomography images. Results. Although the 30 subjects presented overlapping measures of overjet and overbite, the values of the Immediate Overjet Angles were different in a range of a minimum value of 12° and a maximum value of 54°. Conclusion. This study reveals that (1) only 30 (7.9%) of the 381 individuals considered have values of overjet and overbite equal to 2 mm and (2) the Immediate Overjet Angle values of the 30 subjects are not related to the values of overjet and overbite
Bilateral primary coronoid process hyperplasia: computed tomography (CT) and magnetic resonance imaging (MRI) studies.
No full textVedasio l'allegat
[Magnetic resonance in the study of the temporo-mandibular joint. I. Anatomo-functional findings]
No full textThirty-four temporomandibular joints (TMJ) were examined in 17 normal subjects with two superconductive MR units at 1T and 1.5T. TMJ evaluation was performed with both SE sequences in occlusal position and with "fast" sequences (flash) during the gradual opening of the mouth. Therefore, both the anatomic features of the TMJs and their dynamic behavior during mouth opening were analyzed. The information acquired allowed the complete and non-invasive evaluation of TMJ function. The knowledge of the normal anatomic and functional patterns is of paramount importance for the diagnostic approach to TMJ pathologic conditions
Platelet-rich plasma in sinus lifting and bone defects.
No full textVedi allegato (in inglese)
Abstract in Italiano:
Gli autori vogliono studiare le capacità osteogenetiche mediate dal platelet-rich plasma (PRP) in rapporto a modelli di riabilitazione protesica su impianti.
Vengono studiati i comportamenti inerenti la rigenerazione ossea in difetti intraossei ed, inoltre, sono studiati 8 pazienti sottoposti a procedura bilaterale di sinus lift, accuratamente studiati per condizioni generali e per presentare, bilateralmente, lo stesso grado di atrofia in rapporto alla ptosi sinusale.
I risultati delle valutazioni cliniche, radiologiche ed istologiche consentono di ritenere che l’utilizzo del PRP, per tempistiche precise dall’intervento, può indurre benefici in termini di volumetria e di “vitalità” ossea
[Morphologic imaging of thyroid carcinoma]
No full textUltrasonography (US) is the choice morphological imaging modality in the study of thyroid carcinomas. The present technological evolution (high frequency probes, development of Colour-Doppler) allows the detection of small non-palpable nodules, being able to define, in a high percentage of cases, features pointing to the malignant character of a thyroid mass, although the definite assessment of malignancy (invasion of adjacent structures, metastatic cervical nodes) is quite rare. From a diagnostic viewpoint US is required to identify nodules with suspect features, to be submitted to fine needle aspiration biopsy. Moreover, US plays a basic role in the staging--at the cervical level--of carcinomas as well as in the post-operative follow-up. The other imaging modalities (Computed Tomography, Magnetic Resonance Imaging) play a limited role in both staging and post-operative follow-up
Computed tomography and magnetic resonance imaging in the management of coronoid process hyperplasia: review of five cases
No full textTo describe the imaging features of primary bilateral coronoid hyperplasia, with particular reference to the use of CT and MRI
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