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  • Title: Tongue motor skills and masticatory performance in adult dentates, elderly dentates, and complete denture wearers.
    Author: Koshino H, Hirai T, Ishijima T, Ikeda Y.
    Journal: J Prosthet Dent; 1997 Feb; 77(2):147-52. PubMed ID: 9051602.
    Abstract:
    STATEMENT OF PROBLEM: For complete denture wearers the tongue plays an important role in the retention and stability of dentures and has a great influence on masticatory function. PURPOSE OF STUDY: The purpose of this study was to elucidate the relationship between tongue motor behavior and masticatory function. MATERIAL AND METHODS: Thirty healthy, normal adult dentates, 10 normal elderly dentates, and 20 complete denture wearers whose dentures were constructed by the same methods and materials were selected. Tongue motor skills were examined by an ultrasound system and masticatory performance was evaluated by the sieving method. RESULTS: The tongue motor skills of elderly dentates and complete denture wearers were statistically lower compared with those of adult dentates (p < 0.05, Duncan test). Tongue motor skills of complete denture wearers were statistically correlated with age (p < 0.01). Masticatory performance was statistically lower in relation to age in complete denture wearers (p < 0.01). The correlation coefficient was 0.74 between tongue motor skill and masticatory performance in complete denture wearers, which was statistically significant (p < 0.01). CONCLUSION: Age-related decreases in tongue motor skills and masticatory performance were demonstrated by ultrasound observations and sieving methods.
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