Relationship between body mass index and masticatory factors evaluated with a wearable device

Yoshimura, Shogo; Hori, Kazuhiro; Uehara, Fumiko; Hori, Shoko; Yamaga, Yoshio; Hirabayashi, Yoko; Akazawa, Kohei; Ono, Takahiro

doi:10.1038/s41598-022-08084-5

Cited by 9 publications

(6 citation statements)

References 53 publications

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“…The majority of male subjects (46.15%) were classified as overweight, whereas the majority of female subjects (66.13%) were classified as normal weight. Several prior research have shown that subjects with a higher BMI have fewer chewing cycles [ 18 , 19 ]. On top of that, more research is required to test these possibilities.…”

Section: Discussionmentioning

confidence: 99%

Chewing and Swallowing Patterns for Different Food Textures in Healthy Subjects

Sari

Rafisa

2023

International Journal of Dentistry

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Aims. This study aimed to determine the patterns of chewing and swallowing in healthy subjects with different food textures. Methods. This cross-sectional study included 75 subjects who were asked to video record themselves while chewing different food samples of varying textures, including sweet and salty food. The food samples were coco jelly, gummy jelly, biscuit, potato crisp, and roasted nuts. A texture profile analysis test was used to measure the hardness, gumminess, and chewiness of the food samples. Chewing patterns were investigated by measuring the chewing cycle prior to the first swallow (CS1), the chewing cycle until the last swallow (CS2), and the accumulation of chewing time from the first chewing to the last swallowing (STi). Swallowing patterns were evaluated by calculating the swallowing threshold, which is the chewing time/duration prior to the first swallow (STh). The number of swallows for each food sample was also recorded. Results. There was a statistically significant difference in the CS2 of potato crisps, as well as the STi of coco jelly, gummy jelly, and biscuits between male and female subjects. A significant positive correlation was found between hardness and STh. There was a significant negative correlation between gumminess and all chewing and swallowing parameters, as well as chewiness and CS1. This study also found s significant positive correlation between dental pain, CS1, CS2, and STh of gummy jelly, as well as dental pain and CS1 of biscuits. Conclusions. Females require longer chewing time for harder foods. Food hardness is positively related to the chewing duration prior to the first swallow (swallowing threshold/STh). Food chewiness has a negative correlation with the chewing cycle prior to the first swallow (CS1). Food gumminess is inversely related to all the chewing and swallowing parameters. Dental pain is associated with an increased chewing cycle and swallowing time of hard foods.

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Section: Discussionmentioning

confidence: 99%

Chewing and Swallowing Patterns for Different Food Textures in Healthy Subjects

Sari

Rafisa

2023

International Journal of Dentistry

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“…It is connected to a smartphone via Bluetooth to measure parameters relating to masticatory behaviors, so there is no need to restrain the participant in any way. We previously confirmed that the device has sufficient measurement accuracy [ 19 ], and we used it to study masticatory behaviors in healthy adults [ 28 , 29 ].…”

Section: Discussionmentioning

confidence: 99%

Features of Masticatory Behaviors in Older Adults with Oral Hypofunction: A Cross-Sectional Study

Hatayama

Hori

Izuno

et al. 2022

JCM

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Although many studies have shown the relationships between oral function and nutrition and health, few reports have investigated the masticatory behaviors of older people. This study aimed to clarify the relationships between oral function and the masticatory behaviors and features of masticatory behaviors with oral hypofunction. A total of 98 community-dwelling independent older adults participated. Seven oral conditions related to oral hypofunction were examined, and the masticatory behaviors when consuming a rice ball were measured. The participants were divided into two groups according to the criteria for oral hypofunction, and the masticatory behaviors were compared. Furthermore, the relationship between masticatory performance and the number of chews was investigated. The chewing rate of the oral hypofunction group was slower than that of the no oral hypofunction group, but there was no difference in the number of chews and chewing time. The decreased tongue–lip motor function group showed a slower chewing rate, and the decreased tongue pressure group showed a smaller number of chews and shorter chewing time. No significant correlation was observed between masticatory performance and behavior. In conclusion, older adults with oral hypofunction chewed slowly due to decreased dexterity, while, even if oral and masticatory function decreased, no compensatory increase in the number of chews was observed.

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“… 18 Moreover, masticatory performance was correlated with BMI in 365 Japanese individuals aged 20–70 years. 19 Although we did not evaluate masticatory performance in the current study, we plan to investigate the effects of masticatory performance on BMI in inpatients with schizophrenia.…”

Section: Discussionmentioning

confidence: 99%

Association Between the Number of Remaining Teeth and Body Mass Index in Japanese Inpatients with Schizophrenia

Otake¹,

Ono²,

Watanabe³

et al. 2022

NDT

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There is little evidence regarding the effects of dental status on body mass index (BMI) in inpatients with schizophrenia. Thus, we performed a cross-sectional study to explore the associations between the number of remaining teeth and BMI in Japanese inpatients with schizophrenia. Patients and Methods: We performed multiple regression analysis to assess the effects of potential predictors (age, sex, number of remaining teeth, number of antipsychotics prescribed, chlorpromazine equivalent dose, and antipsychotic type) on BMI in 212 inpatients with schizophrenia. We then compared the number of remaining teeth between inpatients with schizophrenia and the Japanese general population (3283 individuals) from the Japan Dental Diseases Survey 2016, using an analysis of covariance with age and sex as covariates. Results: Multiple regression analysis showed that the number of remaining teeth and the number of antipsychotics prescribed were significantly correlated with BMI (standardized regression coefficient = 0.201 and 0.235, respectively). In the analysis of covariance, inpatients with schizophrenia had significantly fewer remaining teeth compared with the Japanese general population (mean 14.8 [standard deviation: 10.9] vs mean 23.0 [standard deviation: 8.1]). Conclusion: These results suggested that tooth loss and antipsychotic polypharmacy affect BMI in inpatients with schizophrenia, and that inpatients with schizophrenia lose more teeth compared with the general population.

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Relationship between body mass index and masticatory factors evaluated with a wearable device

Cited by 9 publications

References 53 publications

Chewing and Swallowing Patterns for Different Food Textures in Healthy Subjects

Chewing and Swallowing Patterns for Different Food Textures in Healthy Subjects

Features of Masticatory Behaviors in Older Adults with Oral Hypofunction: A Cross-Sectional Study

Association Between the Number of Remaining Teeth and Body Mass Index in Japanese Inpatients with Schizophrenia

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