The Association of Walking Ability with Oral Function and Masticatory Behaviors in Community-Dwelling Older People: A Cross-Sectional Study.

: An association between oral function and physical fitness, including walking capacity, has been reported. However, the association between masticatory behaviors and walking ability-both of which represent patterns of movement in daily life-has not been clarified. This study aimed to investigate the association between masticatory behaviors, oral function, and walking capacity in older people.

Predicting cognitive function changes from oral health status: a longitudinal cohort study.

Recent studies indicate a potential link between oral health and cognitive function; however, long-term associations remain unclear. This study aimed to identify oral health factors that predict changes in cognitive function among older adults over time. The study included 583 independent older adults (201 male, 382 female) with a mean age of 72.

Development of the Food Acceptance Questionnaire for Thai Partial and Complete Edentulism.

This study aimed to develop the Food Acceptance Questionnaire (FAQ) to assess the masticatory ability of Thai older adults (≥60 years). Fifty participants were interviewed using open-ended questions about food they regularly consumed and avoided due to difficulty chewing. From a list of 140 items, 100 were recruited for a trial version of the FAQ.

Tongue pressure and maxillofacial muscle activities during swallowing in patients with mandibular prognathism.

Background: Coordination among lip, cheek and tongue movements during swallowing in patients with mandibular prognathism remains unclear.

Objectives: This study aimed to identify the temporal sequences of tongue pressure and maxillofacial muscle activities during swallowing in patients with mandibular prognathism and compared characteristics with those of healthy volunteers.

Methods: Seven patients with mandibular prognathism (mandibular prognathism group) and 25 healthy volunteers with individual normal occlusion (control group) were recruited.

Decreased oral function in Japanese inpatients with schizophrenia.

Aim: Oral function in patients with schizophrenia has not been well-characterized. To address this, we performed a cross-sectional study of oral function in Japanese inpatients with schizophrenia.

Methods: We measured oral function, including occlusal force, tongue-lip motor function, tongue pressure, and masticatory function in 130 Japanese inpatients with schizophrenia.

Quantitative evaluation of swallowing function in Parkinson's disease using tongue pressure measurement: a mini-review.

Dysphagia is a common symptom of Parkinson's disease (PD) associated with aspiration pneumonia, choking, malnutrition, and a decreased quality of life, and is a leading cause of death among patients with PD. Tongue dysfunction in patients with PD affects the oral phase of swallowing, including the formation and propulsion of a bolus into the pharynx. Assessing tongue pressure, generated between the tongue and palate, is a method that quantitatively measures tongue function and is related to dysphagia in PD.

Relationship between maximal isometric tongue pressure and limit of fracture force of gels in tongue squeezing.

Background: There is no clear objective indicator for selecting soft foods that are required for food bolus formation in older people with impaired oral function.

Objective: This study aimed to investigate the relationship between maximal isometric tongue pressure (MITP) and the mechanical properties of gels that can be crushed by the tongue.

Methods: This study included 65 healthy participants aged 22-96 (young group; 15 males, 15 females; older dentate group; 7 males, 8 females; older edentulous group; 10 males, 10 females).

The impact of residual ridge morphology on the masticatory performance of complete denture wearers.

Statement Of The Problem: Morphology of the residual ridge (RR) is expected to influence the masticatory performance (MP) of complete denture (CD) patients, but considerable details of this relationship are unknown.

Purpose: We aimed to investigate the association between the objective MP and RR morphology of CD wearers and other contributory factors affecting their MP.

Materials And Methods: Sixty-five patients with well-fitting upper and lower CDs with no complaints of pain were enrolled.

Effect of mandibular bilateral distal extension denture design on masticatory performance.

Purpose: Removable partial dentures have a wide range of applications as missing tooth prostheses, and the denture design can be quite diverse. However, the factors affecting masticatory function remain unclear. We investigated the effect of denture design, especially the use of indirect retainers and major connectors, on masticatory function in patients with mandibular bilateral distal extension dentures.

Masticatory Performance Test Using a Gummy Jelly for Older People with Low Masticatory Ability.

Evaluation of masticatory ability has become more important in an aging society because decreased masticatory ability has the potential to affect the general health of older people. A new masticatory performance test, intended for older people with low masticatory ability, has been developed using gummy jelly half the size of that used in the conventional masticatory performance test. This study aimed to investigate the compatibility between the new and conventional tests and the adaptation of the new test.

Retronasal aroma dynamics related to the swallowing threshold.

Background: The state of food comminution caused by chewing is an important factor triggering the swallowing reflex. However, the impact of retronasal aroma released from comminuted food to the nose upon swallowing during food intake is poorly understood.

Objective: The present study investigated the relationship between aroma concentration and swallowing threshold while chewing a standardised test food.

Noninvasive Evaluation of the Biomechanical Accommodations to Bolus Volume during Human Swallowing.

Bolus volume is very important in the biomechanics of swallowing. By noninvasively characterizing swallow responses to volume challenges, we can gain more knowledge on swallowing and evaluate swallowing behavior easily. This study aimed to evaluate the impact of bolus volume on the biomechanical characteristics of oropharyngeal swallowing events with a noninvasive sensing system.

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

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.

The effects of tongue elevation using a weighted plastic bottle on the tongue pressure and activity of suprahyoid muscles.

Background: A rise in tongue pressure coincides with an increase in the suprahyoid muscle activity.

Objectives: The aim was to investigate the effects of holding a weighted plastic bottle on tongue pressure and the suprahyoid muscle activity.

Methods: Eighteen participants (8 men and 10 women; mean age 42 ± 16 years) participated in this study.

Effects of Tongue-Strengthening Exercise on Tongue Strength and Effortful Swallowing Pressure in Young Healthy Adults: A Pilot Study.

Purpose: The purpose of this study was to investigate the effects of tongue-strengthening exercise (TSE) on tongue strength and effortful swallowing pressure in young healthy adults.

Method: Thirteen young healthy volunteers (six men, seven women; = 20.5 ± 0.

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

Numerous studies have evaluated the relationship between eating behavior and obesity, however few studies have objectively assessed eating behavior. Additionally, the association of masticatory behaviors with masticatory performance remains unclear. This study aimed to verify the relationship between masticatory performance and behavior measured by a wearable masticatory counter, and BMI.

Impact of Masticatory Behaviors Measured With Wearable Device on Metabolic Syndrome: Cross-sectional Study.

Background: It has been widely recognized that mastication behaviors are related to the health of the whole body and to lifestyle-related diseases. However, many studies were based on subjective questionnaires or were limited to small-scale research in the laboratory due to the lack of a device for measuring mastication behaviors during the daily meal objectively. Recently, a small wearable masticatory counter device, called bitescan (Sharp Co), for measuring masticatory behavior was developed.

Compatibility of two types of gummy jelly tests for detecting decreased masticatory function.

Objective: This study aimed to verify the compatibility of masticatory performance tests using different two types of gummy jellies.

Background Data Discussing The Present Status Of The Field: Compatibility between the glucose concentration measuring method (GC) and 10-steps visual scoring method (VS), which are masticatory performance tests for diagnosing decreased masticatory function (DMF) in oral hypofunction and the use of different types of gummy jelly, has yet to be confirmed.

Materials And Methods: The participants consisted of 134 Japanese older people (51 men and 83 women).

Clarification of the aspects of tongue-palate contacts during mastication with/without stage II transport.

Background: During mastication, the tongue presses the bolus into the pharynx by a "squeeze-back" motion, known as stage II transport (St2Tr). However, the pressure of St2Tr tongue-palate contact has not been examined.

Objectives: We aimed to clarify aspects of St2Tr occurrence and tongue-palate contact during mastication by measuring tongue pressure.

Modulation of tongue motion and tongue pressure during liquid swallowing with different bolus volumes.

Background: The tongue functions by modulating according to bolus volume when swallowing; however, associated tongue dynamics are unclear.

Objective: We aimed to clarify how tongue motion and tongue pressure change with bolus volume during swallowing.

Methods: Sixteen healthy volunteers (age 29.

Factors Affecting Masticatory Satisfaction in Patients with Removable Partial Dentures.

(1) Background: The degree of satisfaction with dental treatment varies among patients, and the discrepancy may exist between the patient's subjective evaluation and the objective assessment. Further, the optimal methods for increasing patient satisfaction with mastication remain unclear. This study aimed to identify factors affecting masticatory satisfaction in patients with removable partial dentures.

Effect of hard gummy candy chewing on masticatory function.

Background: Although various training methods have been reported for improving oral function such as occlusal force, there are few reports that show the training effect of eating hard food on the oral functions.

Objective: To examine the training effects of habitually ating hard gummy candies on oral functions.

Methods: Participants of this cohort study were recruited into a training (six women, eight men; mean age 27.

Update and review of the gerodontology prospective for 2020's: Linking the interactions of oral (hypo)-functions to health vs. systemic diseases.

New lines of evidence suggest that the oral-systemic medical links and oral hypo-function are progressively transcending beyond the traditional clinical signs and symptoms of oral diseases. Research into the dysbiotic microbiome, host immune/inflammatory regulations and patho-physiologic changes and subsequent adaptations through the oral-systemic measures under ageism points to pathways leading to mastication deficiency, dysphagia, signature brain activities for (neuro)-cognition circuitries, dementia and certain cancers of the digestive system as well. Therefore, the coming era of oral health-linked systemic disorders will likely reshape the future of diagnostics in oral geriatrics, treatment modalities and professional therapies in clinical disciplines.