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  • Title: Effect of complete denture occlusal schemes on masticatory performance and maximum occlusal force.
    Author: Niwatcharoenchaikul W, Tumrasvin W, Arksornnukit M.
    Journal: J Prosthet Dent; 2014 Dec; 112(6):1337-42. PubMed ID: 25062582.
    Abstract:
    STATEMENT OF PURPOSE: Masticatory performance and maximum occlusal force may be different, depending on the occlusal schemes of the complete dentures used. PURPOSE: The purpose of this study was to evaluate the effect of 2 complete denture occlusal schemes on masticatory performance and maximum occlusal force. MATERIAL AND METHODS: Two complete denture occlusal schemes, bilateral balanced occlusion and neutrocentric occlusion, were delivered to 10 participants who were completely edentulous (6 men and 4 women; mean age, 67.3 years). Masticatory performance was evaluated with the multiple sieve method and maximum occlusal force with pressure-sensitive films. The 2 occlusal schemes were interchanged on the participants' denture bases. Two-way repeated-measures ANOVA was used to examine the differences between the occlusal schemes and chewing strokes and their interactions. The paired t test was used to compare the maximum occlusal force of the 2 occlusal schemes (α=.05). RESULTS: No difference was found in masticatory performance (P=.07) or maximum occlusal force (P=.31) between the occlusal schemes. For both schemes, a significant difference was found in masticatory performance (P<.001) with increased numbers of chewing strokes. CONCLUSIONS: Complete dentures with bilateral balanced occlusion and neutrocentric occlusion found no significant differences in masticatory performance and maximum occlusal force. However, more chewing strokes resulted in better masticatory performance.
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