Clinical Investigation of Bioelectric Toothbrush for Dentin Hypersensitivity Management: A Randomized Double-Blind Study.

Background: The objective of this study was to evaluate how effectively the bioelectric toothbrush can alleviate dentin hypersensitivity (DHS) by using electrostatic forces to remove biofilm from the tooth surface.

Methods: This study divided inpatients of a preventative dental clinic between March and October 2023 into the following two groups: a bioelectric toothbrush group (BET, n = 25) and a non-bioelectric toothbrush group (NBET, n = 18) as a control group. This was a randomized double-blind, placebo-controlled trial study.

Interrupted time series analysis of chronic periodontitis-related procedures before and after the scaling reimbursement policy in Korea.

Aim: To study the use of a quasi-experimental design to assess the effects of scaling reimbursement policies on the incidence of chronic-periodontitis procedures.

Materials And Methods: Interrupted time series analysis was used to compare the effects before and after policy implementation using data on the number of periodontitis-related procedures from the Korean National Health Insurance Service-National Sample Cohort (n = 740,467) and the Health Screening Cohort (n = 337,904). Periodontitis-related procedures with diagnosis codes were categorized into basic (scaling or root planing), intermediate (subgingival curettage) and advanced (tooth extraction, periodontal flap surgery, bone grafting for alveolar bone defects or guided tissue regeneration).

Effect of Using Mouthwash Containing Cibotium barometz J. Smith on Cariogenic Bacteria and Acid-producing Ability of Saliva: A Randomised Blinded Clinical Trial.

Purpose: To examine the anti-caries effect of mouthwashes containing Cibotium barometz J. Smith (CB), a natural substance, and compare it with chlorhexidine and saline solution.

Materials And Methods: A randomised, blinded clinical trial was conducted on 76 study participants.

Differences in Oral Health According to the Presence of Hearing Loss: Data from the 2021 Korea National Health and Nutrition Examination Survey.

Background: The prevalence of hearing loss is increasing annually and has a strong relationship with oral health. However, existing research on hearing loss is limited to children, making it necessary to expand the analysis to adults. Therefore, this study aims to identify differences in oral health-related factors according to hearing loss in adults over 40 years of age using the Korea National Health and Nutrition Examination Survey.

Evaluating the Effectiveness of Extract as a Natural Anti-Caries Material.

Background: This study aimed to investigate the antibacterial and cytotoxic potential of (PAR) extract against () and explore the possibility of using PAR extract as an anticariogenic agent.

Methods: Mixed extracts were prepared at 0, 1.25, 2.

Association between statin compliance and risk of dementia among patients with chronic periodontitis.

Objectives: We investigated the association between statin compliance and the risk of dementia among patients with chronic periodontitis.

Methods: Chronic periodontitis patients were extracted from the National Health Insurance Service-Health Screening Cohort Database, covering the period from 2002 to 2019. A total of 22,089 subjects were included in the study and divided into three groups based on their compliance with statin administration.

Chronic periodontitis and risk of cerebro-cardiovascular diseases among older Koreans.

Background And Objective: There is a relative lack of evidence from observational studies of older populations investigating the association between chronic periodontitis and cerebro-cardiovascular diseases. Accordingly, we investigated the risk of cerebro-cardiovascular diseases according to the severity of chronic periodontitis among older adults.

Methods: Data on older adults with chronic periodontitis were extracted from the Korea National Health Insurance Service-Senior Cohort Database using diagnosis codes and dental procedures.

Evaluation of the Antifungal Effect of Stokes Extract for Oral Application Potential.

: This study confirms the possibility of using Stokes (RVS) extract as a natural treatment for oral candidiasis. : RVS was extracted with 70% ethanol to examine the antioxidant activity through polyphenol, flavonoid content, and DPPH (1,1-diphenyl-2-picrylhydrazyl). To evaluate the antifungal effect against (; KCTC 7965/ATCC 10231) and evaluate the stability of RVS, a water-soluble tetrazolium salt (WST-1) assay was performed in human keratinocytes (HaCaT).

Comparison of halitosis according to herbal mouthwash containing Glycyrrhiza uralensis extract and saline mouthwash: A randomized, double-blind, placebo-controlled study.

Objectives: This study was conducted in order to determine the effect on halitosis and the antibacterial effect against halitosis-causing bacteria of the mouthwash made of the natural material, Glycyrrhiza uralensis (G. uralensis) extract.

Materials And Methods: A randomized, double-blind, placebo-controlled study was conducted on 60 patients who visited M dental clinic located in Busan, South Korea, excluding those with systemic disease that may induce halitosis.

Effects of Muscular Strength Training on Oral Health and Quality of Life: Using Korean Panel Survey Data, a Cross-Sectional Study.

Objectives: The purpose of this study is to confirm the importance of muscular strength exercise by confirming the relationship between strength exercise, oral health, and quality of life.

Methods: Using the 2019 and 2021 of the Korean National Health and Nutrition Examination Survey (KNHANES), 6535 people were selected as subjects. Complex sampling analysis was applied to all analyses; 2267 people were in the muscular strength training group (MSG), and 5841 people were in the non-muscular strength training group (NMSG).

Differences in Oral Health and Generalized Anxiety Disorder According to Secondhand Smoke Exposure in Public Places.

Background: This study aims to provide basic data for minimizing exposure to secondhand smoke (SHS) by confirming the relationship between exposure to SHS and generalized anxiety disorder (GAD).

Methods: Using the third year data of the eighth National Health and Nutrition Examination Survey, 3874 people were selected as subjects. Complex sampling analysis was applied to all analyses, and 307 people were exposed to the SHS group (SHSG) and 3567 people were not exposed to the SHS group (NSHSG).

Age Group Classification of Dental Radiography without Precise Age Information Using Convolutional Neural Networks.

Automatic age estimation using panoramic dental radiographic images is an important procedure for forensics and personal oral healthcare. The accuracies of the age estimation have increased recently with the advances in deep neural networks (DNN), but DNN requires large sizes of the labeled dataset which is not always available. This study examined whether a deep neural network is able to estimate tooth ages when precise age information is not given.

Changes in Oral Health Behavior According to Dental Calculus Removal Health Insurance in Korea.

Background: Periodontal disease is a chronic disease that is increasing year by year. Korea also recognizes the seriousness of periodontal disease and has been applying preventive scaling in the National Health Insurance since 2013 to prevent it. Studies confirming the effectiveness of such insurance coverage are very scarce.

Risk of chronic periodontitis in patients with obstructive sleep apnea in Korea: a nationwide retrospective cohort study.

Objectives: The aim of this study was to determine whether the development of chronic periodontitis is more likely among patients who have been newly diagnosed with obstructive sleep apnea (OSA) through an analysis of representative data from the general population.

Methods: A nationwide, population-based, retrospective cohort study was conducted using patient records from the Korean National Health Insurance Service database. For the period 2004-2019, patient data were categorized into 2 groups: a diagnosis of OSA (747 subjects) and no diagnosis of OSA (1,494 subjects).

Effect of oral gargle containing Lespedeza cuneata extract on periodontal health improvement and disease prevention: a randomized, controlled clinical trial.

Background: This study aimed to evaluate the antiplaque and antibacterial effects of a mouthwash containing Lespedeza cuneata (LC) extract through clinical periodontal disease (PD) indicators and changes in PD-causing bacteria.

Methods: A total of 63 subjects participated in this double-blind clinical trial. Subjects were divided into two groups: 32 participants gargled with LC extract, and 31 used saline.

Analysis of Quantitative Light-Induced Fluorescence Images for the Assessment of Bacterial Activity and Distribution of Tongue Coating.

This study aimed to verify and to validate the correlation between, and validate the assessment of, bacterial activity and the distribution of tongue coating, by analyzing quantitative light-induced fluorescence (QLF) images for the diagnosis of oral malodor. Oral malodor was measured using the Twin Breasor II, and bacterial activity and the distribution of tongue coating were investigated using QLF images. Bacterial activity and the distribution of tongue coating were quantitatively analyzed by dividing the tongue into six areas using the TB01 1.

Association between depressive mood and chronic periodontitis among senior residents using the National Health Insurance Service-Senior Cohort Database.

Background: Bacteria involved in chronic periodontal disease induce inflammatory cytokines. These cytokines can enter the brain through systemic circulation and cause depression. In this study, we investigated the association between depressed mood and chronic periodontitis in older adults in Korea.

Effects of a mouthwash containing Lespedeza cuneata extract on risk of dental caries: a randomized, placebo-controlled clinical trial.

This study aims to evaluate the anti-caries effect of a mouthwash containing Lespedeza cuneata extract by confirming its effect on acid-producing capacity and bacteria causing dental caries in the oral cavity. For the same oral environments of 95 subjects who agreed to participate in this study, scaling was performed one week before the experiment. The final number of subjects included in the analysis was 82, excluding those who dropped out during the study period.

Mediating Effect of Self-Cognitive Oral Health Status on the Effect of Obstructive Sleep Apnea Risk Factors on Quality of Life (HINT-8) in Middle-Aged Korean Women: The Korea National Health and Nutrition Examination Survey.

Background: Obstructive sleep apnea and oral health are highly correlated with quality of life. The purpose of this study is to determine the mediating effect of self-cognitive oral health status on the effect of obstructive sleep apnea (OSA) risk factors on quality of life in middle-aged Korean women using the 2019 National Health and Nutrition Examination Survey data. Methods: A hierarchical regression analysis was performed on the mediating effect of self-cognitive oral health status on the effects of OSA risk factors on health-related quality of life (Korean health-related quality of life instrument with 8 items; HINT-8).

Risk of dementia according to the severity of chronic periodontitis in Korea: a nationwide retrospective cohort study.

Objectives: We investigated the risk of dementia in older adults with chronic periodontitis according to the severity of periodontitis.

Methods: Data on patients with chronic periodontitis were extracted from the National Health Insurance Service-Senior cohort database from 2002 to 2014. Among 52,728 subjects eligible for inclusion, 11,953 subjects had newly diagnosed mild chronic periodontitis (MCP), and 40,775 subjects had newly diagnosed severe chronic periodontitis (SCP).

The Effect of Mouthwash with Sambucus williamsii var. coreana Extract on Halitosis: A Randomised, Double-Blind, Placebo-Controlled Study.

Purpose: To clinically assess the effects of a mouthwash containing an extract of Sambucus williamsii var. coreana, a natural ingredient, on halitosis and halitosis-causing bacteria.

Materials And Methods: This randomised, double-blind, placebo-controlled study included 77 participants.

A randomized, placebo-controlled clinical trial evaluating of a mouthwash containing Sambucus williamsii var. coreana extract for prevention of gingivitits.

The purpose of this study is to verify the clinical applicability by applying a mouthwash containing Sambucus williamsii var. coreana extract for preventing periodontal disease. A randomized, double-blind, placebo-controlled study was conducted on 64 patients, excluding those with insufficient data, who visited M dental clinic located in Busan, Korea.

The risk of stroke according to statin medication compliance in older people with chronic periodontitis: an analysis using the Korea National Health Insurance Service-Senior Cohort Database.

Objectives: We investigated the risk of stroke according to statin medication compliance in older people with chronic periodontitis.

Methods: Chronic periodontitis patients were extracted from the National Health Insurance Service-Senior Cohort Database from 2002 to 2014. Among 255,056 chronic periodontitis patients, 41,412 patients with statin prescriptions for 28 days or more were included.