Document Detail

Factors associated with masticatory performance in unilateral distal extension removable partial denture patients.
MedLine Citation:
PMID:  16433648     Owner:  NLM     Status:  MEDLINE    
PURPOSE: Masticatory performance of denture patients is an outcome of the intricate inter-relationship between patient characteristics and denture construction. This study aimed to identify both patient- and denture-related factors associated with masticatory performance in unilateral distal extension removable partial denture patients (RPDs). MATERIALS AND METHODS: Seventy-two patients (25 male and 47 female, mean age 63.4 +/- 6.7 years) with unilateral distal extension RPDs were included in the study. The Mixing Ability Index (MAI) obtained from a chewing test using standard two-colored wax cubes, determined masticatory performance. The effect of each evaluated factor on masticatory performance was first determined by an independent t-test or one-way analysis of variance. The statistically significant factors were entered in a model of multivariate linear regression analysis to estimate the independent effect on MAI. RESULTS: The MAI ranged from -3.06 to 0.80 (Mean -0.71 +/- 0.86). Univariate analyses identified male gender, high maximum bite force, more functional tooth units, and natural dentition opposing RPDs as patient factors increasing the MAI. Multivariate analysis (adjusted R(2)= 0.346) revealed that gender (p < 0.001), maximum bite force (p= 0.02), and number of functional tooth units (p= 0.03) were independent predictors for masticatory performance. None of the denture-related factors had a significant influence on MAI. CONCLUSION: Gender, maximum bite force, and number of functional tooth units were the main factors influencing masticatory performance of unilateral distal extension RPD patients.
Wacharasak Tumrasvin; Kenji Fueki; Takashi Ohyama
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of prosthodontics : official journal of the American College of Prosthodontists     Volume:  15     ISSN:  1059-941X     ISO Abbreviation:  J Prosthodont     Publication Date:    2006 Jan-Feb
Date Detail:
Created Date:  2006-01-25     Completed Date:  2006-05-02     Revised Date:  2006-11-07    
Medline Journal Info:
Nlm Unique ID:  9301275     Medline TA:  J Prosthodont     Country:  United States    
Other Details:
Languages:  eng     Pagination:  25-31     Citation Subset:  D    
Copyright Information:
Copyright (c) 2006 by The American College of Prosthodontists.
Department of Masticatory Function Rehabilitation, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyo-ku, Tokyo 113-8549, Japan.
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MeSH Terms
Analysis of Variance
Bite Force
Bone Density
Dental Arch / physiopathology
Denture Design*
Denture, Partial, Removable*
Jaw, Edentulous, Partially / physiopathology*
Linear Models
Middle Aged
Sex Factors
Tooth Loss / physiopathology

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