Source:http://linkedlifedata.com/resource/pubmed/id/17986213
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
2008-5-2
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pubmed:abstractText |
The jerk-cost is an index that can quantify the smoothness of various movements including human body movements. A previous study reported the usefulness of jerk-cost in the evaluation of masticatory movement, and proposed that the masticatory movement of subjects with good occlusion could be explained as a maximum smooth movement. The purpose of this study was to investigate the influence of a single prosthetic molar restoration on the smoothness of masticatory movement. Fourteen adults who visited this hospital seeking a single prosthetic restoration on a molar were selected. Each subject chewed a piece of chewing gum on the molars of the treated side before and after crown placement. Movement trajectory was recorded using the Sirognathograph Analyzing System. Normalized jerk-cost (NJC) was calculated on the closing phase of each chewing cycle and was compared before and after the crown placement. After the prosthetic restoration, NJC significantly decreased (P < 0.05) in seven subjects with a crown placed on a lower molar, whereas significant changes were not observed in seven subjects with a crown placed on an upper molar. These results suggest that restoring a crown on a lower molar could significantly improve the smoothness of masticatory movement on the same side.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
D
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
1365-2842
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
35
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
440-5
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pubmed:dateRevised |
2008-9-1
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pubmed:meshHeading |
pubmed-meshheading:17986213-Adult,
pubmed-meshheading:17986213-Biomechanics,
pubmed-meshheading:17986213-Female,
pubmed-meshheading:17986213-Humans,
pubmed-meshheading:17986213-Jaw,
pubmed-meshheading:17986213-Male,
pubmed-meshheading:17986213-Mastication,
pubmed-meshheading:17986213-Middle Aged,
pubmed-meshheading:17986213-Models, Biological,
pubmed-meshheading:17986213-Models, Statistical,
pubmed-meshheading:17986213-Molar,
pubmed-meshheading:17986213-Movement,
pubmed-meshheading:17986213-Signal Processing, Computer-Assisted,
pubmed-meshheading:17986213-Tooth Crown
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pubmed:year |
2008
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pubmed:articleTitle |
The influence of single molar crown placement on the smoothness of masticatory movement.
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pubmed:affiliation |
Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan. watamoto@dent.osaka-u.ac.jp
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pubmed:publicationType |
Journal Article,
Comparative Study
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