Distribution of lip‐seal strength and its relation to oral motor functions

Kugimiya, Yoshihiro; Oki, Takeshi; Ohta, Masaki; Ryu, Masahiro; Kobayashi, Kazuhiko; Sakurai, Kazuo; Ueda, Takayuki

doi:10.1002/cre2.440

Cited by 13 publications

(10 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, statistically significant differences were observed in the labial seal (Table 1). This difference in the strength of the lip muscles was previously reported, which was confirmed in the present study (Miyamoto et al 2019;Kugimiya et al 2021b). In addition, tongue pressure and masticatory performance of oral motor function exhibited a significant correlation with lip sealing strength in both sexes.…”

Section: Discussionsupporting

confidence: 93%

See 1 more Smart Citation

Reduced lip seal strength and missing teeth are associated with poorer masticatory performance in young adults with intellectual disabilities: a cross‐sectional analytical study

Martínez-Arnau

Valderrama-Mejía

Cruz‐Montecinos

et al. 2023

J intellect Disabil Res

View full text Add to dashboard Cite

Background Alterations in oral health have a negative impact on the quality of life of persons with intellectual disabilities (PwIDs). Chewing is a process that influences and determines optimal oral health. However, little is known about how intellectual disability (ID) affects masticatory performance. This study aimed to analyse the differences in masticatory performance between young adults with IDs, young adults without IDs and older adults without IDs. Methods A cross‐sectional analytical design was used. The masticatory performance was evaluated with a chewing gum validated instrument. In addition, the labial and tongue strength was assessed with the Iowa Oral Performance Instrument. We compared the masticatory performance between groups using one‐way analysis of covariance. Body mass index, muscle mass, missing teeth, lip strength and tongue strength were included as separate covariates. A multivariate regression analysis was performed to identify which independent variables could explain masticatory performance in each group. Results Thirty‐two PwIDs, 31 young adults without IDs and 32 older adults without IDs were recruited. PwIDs showed poorer masticatory performance compared with older adults (mean difference: −3.06, 95% confidence interval: −3.87 to −2.26) and healthy controls (mean difference: −2.38, 95% confidence interval: −3.19 to −1.57). The analysis of covariance showed significant difference between groups in the masticatory performance (F = 47.35, P < 0.001, ηp2 = 0.507). Missing teeth (P < 0.001), right lip strength (P = 0.025) and tongue strength (P = 0.007) as covariables showed a significant interaction with the model. In the PwID group, lip strength and lack of teeth explained 58% of the variance in masticatory performance (R2 = 0.580, standard error = 1.12, P < 0.001). Conclusions Persons with intellectual disabilities have a poorer masticatory performance than adults without IDs. Our findings indicate that the primary determinants of optimal masticatory function in PwIDs are the strength of the lip seal and the number of missing teeth.

show abstract

Section: Discussionsupporting

confidence: 93%

“…2019; Kugimiya et al . 2021b). In addition, tongue pressure and masticatory performance of oral motor function exhibited a significant correlation with lip sealing strength in both sexes.…”

Section: Discussionmentioning

confidence: 99%

Reduced lip seal strength and missing teeth are associated with poorer masticatory performance in young adults with intellectual disabilities: a cross‐sectional analytical study

Martínez-Arnau

Valderrama-Mejía

Cruz‐Montecinos

et al. 2023

J intellect Disabil Res

View full text Add to dashboard Cite

show abstract

“…Moreover, some effects in the oral environment have few subjective symptoms, and periodic measurement may lead to early prevention for chronic diseases. While Kugimiya et al reported that lip seal strength has the effect by aging and was not normally distributed in adults, lip seal strength and tongue pressure were signi cantly correlated among adults in Japan [7] .…”

Section: Introductionmentioning

confidence: 90%

“…Before the study began, written consent for publication was obtained from all participants. Alcohol consumption, smoking, and overweight/obesity have been reported to be associated with nonrestorative sleep among healthy Japanese [7], so we administered a self-administered questionnaire composed of items on age, alcohol consumption (once a week or more, less than once a week), smoking (yes, no), weight (kg), height (cm), and obstructive sleep apnea (yes, no). Due to the COVID-19 pandemic in Japan, job descriptions are uid, such as changing from driver to clerk, so job descriptions were not included in the questionnaire.…”

Section: Study Participantsmentioning

confidence: 99%

Relationship between Lip Seal Strength, Tongue Pressure, and Daytime Sleepiness in Japanese Workers: A Cross-Sectional Study

Minoura

Ihara

Kato

et al. 2023

Preprint

View full text Add to dashboard Cite

Background: This cross-sectional study aimed to examine the relationship between lip seal strength, tongue pressure, and daytime sleepiness, among Japanese workers. Methods: A self-administered questionnaire composed of Epworth Sleepiness Scale (ESS) was conducted on 496 workers, and excessive daytime sleepiness defined by an ESS score of 11 or over. Lip seal strength and tongue pressure were measured in all participants, and multiple regression analyses were performed to examine the effects of lip seal strength and tongue pressure on daytime sleepiness. Results: The median ESS score was 5.0 (25th, 75th percentile: 2.0, 8.0), and 60 (12.1%) workers with excessive daytime sleepiness. The median lip-seal strength was 13.5 N (11.4, 16.3) and tongue pressure was 41.7 kPa (35.2, 48.3). Workers with excessive daytime sleepiness had significantly lower lip seal strength than did those without after adjustment for age and body mass index (BMI) (β (95% confidence interval): –0.043 [–0.081, –0.004]). However, tongue pressure was not significantly associated with excessive daytime sleepiness after adjustment for age and/or BMI. Conclusions: These results suggest that maintaining moderate lip-seal strength may help prevent excessive daytime sleepiness in Japanese workers regardless of age or BMI.

show abstract

“…However, from previous studies it remains unclear whether the difference in performance between SMR and AMR tasks is already evident in younger age groups or whether it follows an evolutionary pattern from childhood to adulthood, as has been reported for the syllabic rates of SMR and AMR tasks separately. Changes in performance between AMR and SMR from childhood to adulthood can hardly be inferred from previous studies since SMR and AMR tasks are not systematically tested in DDK studies (e.g., in children and adolescents [ 25 , 26 , 27 ], in adults [ 28 , 29 , 30 ] or whenever they are included, no comments on the performance pattern between the two types of DDK tasks is found (e.g., in children and adolescents [ 7 , 31 ] or in adults [ 13 , 14 ]). Additionally, most studies are carried out only on one age group or only on one type of DDK—mostly AMR—which does not inform of the changes in performance between AMR and SMR from childhood to adulthood.…”

Section: Introductionmentioning

confidence: 99%

What Do Differences between Alternating and Sequential Diadochokinetic Tasks Tell Us about the Development of Oromotor Skills? An Insight from Childhood to Adulthood

2023

View full text Add to dashboard Cite

Oral diadochokinetic (DDK) tasks are common research and clinical tools used to test oromotor skills across different age groups. They include alternating motion rate (AMR) and sequential motion rate (SMR) tasks. AMR tasks involve repeating a single syllable, whereas SMR tasks involve repeating varying syllables. DDK performance is mostly discussed regarding the increasing rates of AMR and SMR tasks from childhood to adulthood, although less attention is given to the performance differences between SMR and AMR tasks across age groups. Here, AMR and SMR syllabic rates were contrasted in three populations: 7–9-year-old children, 14–16-year-old adolescents and 20–30-year-old adults. The results revealed similar syllabic rates for the two DDK tasks in children, whereas adolescents and adults achieved faster SMR rates. Acoustic analyses showed similarities in prosodic features between AMR and SMR sequences and in anticipatory coarticulation in the SMR sequences in all age groups. However, a lower degree of coarticulation was observed in children relative to adults. Adolescents, on the contrary, showed an adult-like pattern. These findings suggest that SMR tasks may be more sensitive to age-related changes in oromotor skills than AMR tasks and that greater gestural overlap across varying syllables may be a factor in achieving higher rates in SMR tasks.

show abstract

Distribution of lip‐seal strength and its relation to oral motor functions

Cited by 13 publications

References 37 publications

Reduced lip seal strength and missing teeth are associated with poorer masticatory performance in young adults with intellectual disabilities: a cross‐sectional analytical study

Reduced lip seal strength and missing teeth are associated with poorer masticatory performance in young adults with intellectual disabilities: a cross‐sectional analytical study

Relationship between Lip Seal Strength, Tongue Pressure, and Daytime Sleepiness in Japanese Workers: A Cross-Sectional Study

What Do Differences between Alternating and Sequential Diadochokinetic Tasks Tell Us about the Development of Oromotor Skills? An Insight from Childhood to Adulthood

Contact Info

Product

Resources

About