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Biomechanical properties of masticatory balance in cases with RPDs—The influence of preferred and nonpreferred chewing side: A pilot study

Eberhard, L. ; Rues, S.; Bach, L.; Lenz, J. 1; Schindler, H. J.
1 Institut für Mechanik (IFM), Karlsruher Institut für Technologie (KIT)

Abstract:

Objectives
Removable partial dentures (RPDs) are inserted with the aim to restore masticatory function. There is however inconsistent evidence supporting the alleged improvements, posterior occlusal contacts being one of the decisive factors. We hypothesized that the distribution of abutment teeth in RPDs influences masticatory performance and functional parameters. To evaluate the masticatory performance and functional parameters in patients with a RPD using a single mathematical parameter (tilting index [TI]) for both jaws that predicts biomechanical behavior on the basis of the distribution of abutment teeth.
Materials and Methods
Masticatory performance was measured in patients wearing long-time adapted RPDs using the standardized test food optocal, yielding the mean particle size (X$_{50}$). Mastication on the preferred and nonpreferred chewing sides was analyzed. Total muscle work (TMW) was calculated using bipolar electromyographic recordings of the masseter and anterior temporalis muscle. Functional parameters were subjected to multiple linear regression analysis including X$_{50}$ as a dependent variable and functional units (FU), the number of teeth, bite forces, and sagittal and frontal components of TI (TI α and TI β) as independent variables.
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Verlagsausgabe §
DOI: 10.5445/IR/1000146066
Originalveröffentlichung
DOI: 10.1002/cre2.576
Scopus
Zitationen: 1
Dimensions
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mechanik (IFM)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 08.2022
Sprache Englisch
Identifikator ISSN: 2057-4347
KITopen-ID: 1000146066
Erschienen in Clinical and Experimental Dental Research
Verlag Wiley Open Access
Band 8
Heft 4
Seiten 912-922
Vorab online veröffentlicht am 28.04.2022
Nachgewiesen in Scopus
Dimensions
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