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Biomedical subjects

T Magnusson

Publications and source records attributed to T Magnusson.

95 records · Page 6Linked to original sources
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Changes in signs and symptoms of temporomandibular disorders following treatment with implant-supported fixed prostheses: a prospective 3-year follow up.

PURPOSE: The aim was to investigate whether the replacement of lost teeth with implant-supported fixed prostheses (IFP) had any influence upon the signs and symptoms of temporomandibular disorders (TMD). MATERIALS AND METHODS: The subjects comprised 78 consecutive patients referred to a specialist clinic for treatment with IFPs. All were examined with respect to the presence of signs and symptoms of TMD before the start of treatment and after 1 and 3 years. RESULTS: Before treatment began, 21% of the patients were found to have moderate (15%) or severe (5%) clinical signs of dysfunction according to the Helkimo index. These figures decreased numerically but not statistically significantly to 10% and 1%, respectively, at the 3-year follow up. Nearly half of the patients (45%) reported one or more subjective symptoms of TMD at the first examination. The anamnestic index used had decreased statistically significantly at the 3-year follow up, when the 5 variables composing the index had improved, but the improvement was statistically significant only for the variables joint sounds and pain when opening the mouth wide. All patients were satisfied with the treatment received. CONCLUSION: The results from the present investigation show that treatment with IFPs has a good and lasting effect on the functional status of the masticatory system as well as on subjective symptoms of TMD and chewing ability in the vast majority of patients treated.

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Restoring endodontically treated teeth: a survey of current opinions among board-certified prosthodontists and general dental practitioners in Sweden.

PURPOSE: The main aim was to investigate the current opinions among general dental practitioners and board-certified prosthodontists in Sweden on how to restore root-filled teeth. MATERIALS AND METHODS: A questionnaire containing 31 multiple-choice questions was mailed to 892 general practitioners and 150 board-certified prosthodontists in Sweden. The questions asked for information on when the clinicians used posts in endodontically treated teeth and what kind of clinical procedure they used. They were also asked if they believed that a post strengthened a root-filled tooth. RESULTS: Sixty percent of the general practitioners and 67% of the prosthodontists returned the questionnaire. Twenty-nine percent of the responding general practitioners and 17% of the prosthodontists were of the opinion that a post reinforces a root-filled tooth. Only a few clinicians used posts "always" or "most of the time" when restoring endodontically treated teeth with fillings, while the vast majority used posts when restoring such teeth with crowns or fixed partial dentures. In both groups of dentists, cast posts were most commonly used. Despite the present knowledge that parallel-sided posts have a significantly higher success rate than tapered cast posts, only a minority of Swedish dentists use parallel-sided posts. CONCLUSION: In contrast to the results of several current studies, a high proportion of both general practitioners and prosthodontists believe that a post reinforces an endodontically treated tooth. This is one probable explanation for the almost ubiquitous application of posts when teeth are restored with crowns or fixed partial dentures.

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