Masticatory efficiency contributing to the improved dynamic postural balance: A cross‐sectional study

Hwang, Hae-Yun; Choi, Jun-Seon; Kim, Hee‐Eun

doi:10.1111/ger.12349

Cited by 8 publications

(9 citation statements)

References 21 publications

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“…Furthermore, the decrease in masticatory function with aging leads to decreased sensory input of the nervous system and cerebral blood flow [5,41], which may result in systemic deteriorations of elderly patients. In a study by Hwang et al [28], the dynamic balance of elderly participants with low masticatory efficiency was lower than that of elderly participants with high masticatory efficiency, which may lead to an increased fall risk. Bae and Park [42] reported that denture-wearers had decreased neck muscle strength than those without dentures, which may cause the body to bend forward.…”

Section: Discussionmentioning

confidence: 97%

“…A wax cube was masticated 10 times, and the total area of the wax specimen, the level of puncture, and the level of color mix were comprehensively evaluated to determine the MAI [15]. The wax cube was made by arranging red and green utility wax rods (Daedong Industrial Co., Ltd., Daegu, Korea) without any overlap in a 12 × 12 × 12 mm cube (Figure 1A) [28]. The participants were asked to masticate one wax cube with their right teeth 10 times, and the procedure was repeated with their left teeth (Figure 1B).…”

Section: Assessment Of Masticatory Performancementioning

confidence: 99%

“…The following variables were calculated using the six analyzed values: the ratio of the area mixed with two colors (MIX) = 100 − (RA + GA)/P × 100, the ratio of the area below 50 µm in thickness to TPA (TR) = 100 − P/TPA × 100, the proportion of maximum length to breadth (LB) = ML/MB, and the shape factor, which showed how flat the sample was (FF) = ML2 × π/4 × TPA × 100. The MIX, TR, LB, and FF were used to calculate the MAI [15,28]. The mean MAI value of the front and back sides of the masticated wax cube was used to calculate the total MAI, and the MAI of each participant was recorded as the mean MAI of the two wax cubes masticated with the right and left teeth.…”

Section: Assessment Of Masticatory Performancementioning

confidence: 99%

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Influential Factors of Masticatory Performance in Older Adults: A Cross-Sectional Study

Kim

2021

IJERPH

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While appropriate nutrient intake is important for older adults, various oral problems cause decreased masticatory function. This cross-sectional study aimed to identify the factors associated with decreased masticatory performance in older adults. Oral examinations were performed on 80 participants (mean age: 75.10 ± 5.64 years) to determine the number of functional tooth units (FTUs). Symptoms of periodontal and temporomandibular diseases were evaluated via a questionnaire. The tone, elasticity, and dynamic stiffness of the masseter muscle were measured using the Myoton® PRO device. The mixing ability test was used to assess the masticatory performance, and the mixing ability index (MAI) was calculated. The analysis of covariance test was performed to adjust for confounding factors, and multiple logistic regression analysis was performed to identify the risk factors affecting MAI. A lower MAI was significantly associated with higher tone (p = 0.006) and lower elasticity (p = 0.013). The number of FTUs (adjusted odds ratio (OR) = 0.724, p = 0.029), tone (adjusted OR = 1.215, p = 0.016), and elasticity (adjusted OR = 4.789, p = 0.038) were independently associated with the MAI. Muscle function training and prosthetic treatments may help increase masticatory performance in older adults, which would improve overall health.

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Section: Discussionmentioning

confidence: 97%

Section: Assessment Of Masticatory Performancementioning

confidence: 99%

Section: Assessment Of Masticatory Performancementioning

confidence: 99%

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Influential Factors of Masticatory Performance in Older Adults: A Cross-Sectional Study

Kim

2021

IJERPH

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“…Masticatory performance was assessed using the MAI, which is calculated by comprehensively evaluating the total area, degree of perforation, and degree of color mixing after masticating a wax cube. The wax cube, composed of red and green utility wax rods arranged as 12 mm × 12 mm × 12 mm (Daedong Industrial Co., Ltd., Daegu, Republic of Korea) without overlap [ 26 ], was masticated 10 times ( Figure 1 ). One cube was used for each side of the mouth.…”

Section: Methodsmentioning

confidence: 99%

Factors Affecting Masticatory Performance of Older Adults Are Sex-Dependent: A Cross-Sectional Study

Kim

Wallace

Sohn

2022

IJERPH

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This cross-sectional study assessed the oral and physical factors contributing to improvement of the masticatory performance of community-dwelling older adults in South Korea. We enrolled 84 healthy older adults (38 men, 46 women; age, 71.40 ± 5.15 years) and assessed their skeletal muscle mass index (SMI), functional tooth units (FTUs), and mixing ability index (MAI). Associations between variables were analyzed using Spearman’s correlation coefficient, and the effects of SMI and FTUs on the MAI were evaluated through linear multiple regression. FTUs were positively associated with the MAI in men and women (r = 0.339, p = 0.038 and r = 0.461, p = 0.001, respectively). SMI and FTUs were moderately associated in men (r = 0.459, p = 0.004). MAI showed an approximately 4.4 times increase for each FTU in men (B = 4.442, p = 0.037); however, after the SMI was added, this effect was no longer significant. In women, the MAI increased by about 6.7 times with each FTU (B = 6.685, p = 0.004). FTUs had a significant effect on the MAI only in women with low muscle mass. While there was no significant effect of the SMI on the MAI, its influence should not be overlooked.

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“…Postural balance can be improved by performing the act of chewing [ 5 ]. In addition, chewing habit is correlated with forward head posture (FHP) [ 6 ], and a good oral health retains masticatory efficiency and postural muscular function (leading to good balance) in older adults [ 7 , 8 , 9 ]. Hence, tooth loss is a risk factor for postural imbalance [ 10 ], and dental occlusion is associated with static and dynamic balance [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Head Posture and Postural Balance in Community-Dwelling Older Adults Who Use Dentures

Bae

Park

2020

Medicina

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Background and objectives: Tooth loss and consequent denture use and impaired posture and postural balance are more prevalent in older adults than in the young ones. The aim of this cross-sectional study was to identify the association between denture use, head posture, postural balance, and neck muscle strength (NMS). Materials and methods: We included 107 participants (56 in the non-denture use group and 51 in the denture use group) and measured their NMS, forward head posture, and postural balance. Forward head posture was measured using the craniocervical angle (CRA). Postural balance was assessed using a timed up-and-go test (TUG) and postural sway. An independent t-test was used to analyze the differences between the groups; Pearson correlation analysis was used to analyze the correlation of period of denture use, head posture, and postural balance. Results: We found that the denture use group had lower NMS, smaller CRA, longer TUG, and longer postural sway length than the non-denture use group. Duration of denture use was significantly correlated with TUG. Conclusions: Our findings reveal that denture use does not help with NMS, forward head maintain NMS, head posture, and postural balance in older adults.

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Masticatory efficiency contributing to the improved dynamic postural balance: A cross‐sectional study

Abstract: With some reservations about statistical power, the association found between masticatory efficiency and postural balance justifies further investigations to confirm the strength of the associations, and possibly to identify causal relationships between mastication and posture in old age.

Cited by 8 publications

References 21 publications

Influential Factors of Masticatory Performance in Older Adults: A Cross-Sectional Study

Influential Factors of Masticatory Performance in Older Adults: A Cross-Sectional Study

Factors Affecting Masticatory Performance of Older Adults Are Sex-Dependent: A Cross-Sectional Study

Head Posture and Postural Balance in Community-Dwelling Older Adults Who Use Dentures

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