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Article
The Association Between Periodontal Disease and Non-Alcoholic Fatty Liver Disease is Linked to Metabolic Disorders
Non-alcoholic fatty liver disease (NAFLD) is recognized as the most common cause of chronic liver disease. NAFLD regularly coexists with metabolic disorders such as obesity and diabetes. Periodontal disease is...
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Article
Open AccessA multilevel analysis of the importance of oral health instructions for preventing tooth loss: The 8020 Promotion Foundation Study of Japanese Dental Patients
Many studies have reported risk factors for tooth loss. Oral health instruction is considered effective at improving oral health behavior and oral health. However, few studies have examined the relationship of...
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Article
Association between intensive health guidance focusing on eating quickly and metabolic syndrome in Japanese middle-aged citizens
The purpose of this intervention study was to investigate whether intensive health guidance focusing on eating quickly can prevent metabolic syndrome (MetS) more effectively than standard routine guidance in J...
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Article
Aging, Mastication, and Malnutrition and Their Associations with Cognitive Disorder: Evidence from Epidemiological Data
As the world’s population ages, the decline of cognitive function and dementia among elderly people are becoming serious problems. Cognitive impairment and dementia affect the quality of life and increase heal...
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Article
Open AccessPeriodontal status and lung function decline in the community: the Hisayama study
This study aimed to determine whether periodontal status is related to a decline in lung function in a general Japanese population. We followed a total of 1,650 community-dwelling individuals (≥40 years) witho...
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Article
Exploration of bacterial species associated with the salivary microbiome of individuals with a low susceptibility to dental caries
Dental caries is caused by acidogenic plaque microbiota formed on saliva-bathed tooth surfaces, in which multiple organisms act collectively to initiate and expand a cavity. We explored bacterial species assoc...
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Article
Epidemiological Evidences for the Association of Obesity and Metabolic Disorders with Oral Diseases
Obesity is the underlying cause of many chronic diseases and affects overall health. Obesity and obesity-related metabolic disorders, particularly, metabolic syndrome and diabetes, have been recognized to be a...
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Article
Open AccessAssociations among oral health-related quality of life, subjective symptoms, clinical status, and self-rated oral health in Japanese university students: a cross-sectional study
The present study aimed to elucidate the associations among self-rated oral health, clinical oral health status, oral health behaviors, subjective oral symptoms, and oral health-related quality of life (OHRQoL...
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Article
Open AccessBacterial diversity in saliva and oral health-related conditions: the Hisayama Study
This population-based study determined the salivary microbiota composition of 2,343 adult residents of Hisayama town, Japan, using 16S rRNA gene next-generation high-throughput sequencing. Of 550 identified sp...
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Article
Open AccessDental plaque development on a hydroxyapatite disk in young adults observed by using a barcoded pyrosequencing approach
Dental plaque is a dynamic microbial biofilm ecosystem that comprises hundreds of species including difficult-to-cultivate bacteria. We observed the assembly of a plaque bacterial community through 16S rRNA ge...
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Article
Open AccessDistinct composition of the oral indigenous microbiota in South Korean and Japanese adults
A comparison of national surveys on oral health suggested that the population of South Korea has a better periodontal health status than that of Japan, despite their similar inherent backgrounds. Here, we inve...
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Article
Open AccessOral Health and Swallowing Problems
Oral health impacts systemic health. Therefore, oral care is an important consideration in maintaining quality of life (QOL). Previously, maintenance and improvement of oral hygiene was considered essential fo...
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Article
Open AccessRelationships between self-rated oral health, subjective symptoms, oral health behavior and clinical conditions in Japanese university students: a cross-sectional survey at Okayama University
Self-rated oral health is a valid and useful summary indicator of overall oral health status and quality of life. However, few studies on perception of oral health have been conducted among Japanese young adul...
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Article
Relationship between periodontal inflammation and fetal growth in pregnant women: a cross-sectional study
Periodontal disease in pregnant women, evaluated by probing pocket depth (PPD) or clinical attachment level (CAL), significantly increases the risk of subsequent preterm birth (PB) and/or low birth weight (LBW...
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Article
Open AccessSelf-reported aural symptoms, headache and temporomandibular disorders in Japanese young adults
To investigate the associations of aural symptoms, headache and depression with the presence of temporomandibular disorder (TMD) symptoms in a young adult population in Japan.
