Association of periodontitis with oral malodor in Korean adults.

This study aimed to evaluate the association of periodontitis with the organoleptic score (OLS)-defined oral malodor after validating OLS with odoriferous sulfur compounds in mouth air among Korean adults. A total of 330 adults aged 47-86 years were recruited from the Yangpyeong health cohort, South Korea, in 2015. Oral malodor was assessed using a 6-point OLS by a trained dentist and validated with the concentrations of hydrogen sulfide (HS) and methyl mercaptan (MM) using a gas chromatographer.

Deep sequencing salivary proteins for periodontitis using proteomics.

Objectives: Saliva is a bodily fluid transuded from gingival crevice fluid and blood and contains many proteins. Proteins in saliva have been studied as markers for periodontal diseases. Mass spectrometric analysis is applied to investigate biomarker proteins that are related to periodontitis.

Rehabilitation of lost teeth related to maintenance of cognitive function.

Objective: As the era of aging comes, cognitive impairment (CI) is increasing. The impact of rehabilitation of lost tooth on CI remains unclear. This study aimed to investigate whether non-rehabilitated lost teeth (NRLT) is associated with CI among Korean elders.

The association of dietary vitamin C intake with periodontitis among Korean adults: Results from KNHANES Ⅳ.

Backgrounds: The association of dietary vitamin C (vit C) on periodontitis requires more valid evidence from large representative samples to enable sufficient adjustments. This study aimed to evaluate the association between dietary vit C intake and periodontitis after controlling for various confounders in the representative Korean adult population.

Method: A total of 10,930 Korean adults (≥19 years) from the fourth Korean National Health and Nutrition Examination Survey data set were included in this cross-sectional study.

Incipient periodontitis and salivary molecules among Korean adults: association and screening ability.

Aim: This study aims to evaluate the association of salivary matrix metalloproteinase-9 (MMP-9) and interleukin-8 (IL-8) with periodontitis and its screening ability on periodontitis.

Material And Methods: We selected 693 participants from the Yanypyeong Cohort: 577 participants with periodontitis and 116 participants without periodontitis. Periodontitis was assessed by dentists using a panoramic radiograph.

Periodontitis is associated with the risk of subclinical atherosclerosis and peripheral arterial disease in Korean adults.

Background And Aims: We aimed to evaluate the association of periodontitis with the development of early atherosclerotic vascular disease in Korean adults.

Methods: In this cross-sectional study, a total of 1343 adults aged over 40 years were recruited from a community-based cohort of Yangpyeong county, Korea, during the period 2010-2014. Only dentate individuals were included in the study.

Association between periodontitis and salivary 8-hydroxydeoxyguanosine among Korean rural adults.

Objectives: This study aimed to evaluate the association between salivary 8-hydroxydeoxyguanosine (8-OHdG) and periodontitis among community-dwelling Korean adults.

Methods: A total of 211 adults (80 men and 131 women) were cross-sectionally surveyed from the Sunchang Longevity Cohort. Periodontitis was defined as having at least 30% of teeth with proximal attachment loss ≥5 mm.

Periodontitis Is Associated with Cognitive Impairment in Elderly Koreans: Results from the Yangpyeong Cohort Study.

Objectives: To investigate the association between periodontitis and cognitive impairment in elderly Koreans.

Design: Cross-sectional study with age- and sex-matched case-control selection.

Setting: The Yangpyeong cardiovascular cohort (YCC), a part of the Korean Genome Epidemiologic Study (KoGES), Yangpyeong, South Korea.

The association of hypertension with periodontitis is highlighted in female adults: results from the Fourth Korea National Health and Nutrition Examination Survey.

Aim: To evaluate the association of hypertension and high systolic and diastolic blood pressure (SBP and DBP) with periodontitis in a nationally representative Korean adult population.

Materials And Methods: Total of 14,625 participants of Fourth Korea National Health and Nutrition Examination Survey (KNHANES IV) aged over 19 years were cross-sectionally surveyed. Periodontitis was defined as CPI score of 3 or 4.

Genomewide association study on chronic periodontitis in Korean population: results from the Yangpyeong health cohort.

Aim: This study aims to locate the genes related to periodontitis through genome-wide association study (GWAS) in Korean population.

Methods: Total of 677 adults aged 44-88 years were recruited from the Yangpyeong cohort in Korea. The participants did not have self-reported metabolic diseases, cardiovascular diseases or cancer.

Korean version of child perceptions questionnaire and dental caries among Korean children.

Although dental caries has been a major oral health problem for children, the association between dental caries and oral health related quality of life has been still controversial. This study aims to evaluate the association between the Korean version of the Child Perceptions Questionnaire (K-CPQ) and dental caries among Korean children. Eight hundred one school children aged 8 to 14 years participated in this study.