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Hoein Jeong

Yonsei University · Medicine

About the Lab

Professor Hoein Jeong's research lab focuses on preventive and public oral health, with a strong emphasis on improving oral health outcomes for vulnerable populations, including the elderly and people with disabilities. The lab investigates innovative, non-invasive diagnostic tools for periodontal and dental caries detection, such as colorimetric caries tests and optical imaging devices like Q-ray view. It also explores population-level oral health trends, particularly in aging societies, and advocates for equitable access to dental care through policy-oriented research.

oral health disparitiesnon-invasive diagnosticsperiodontitis screeninggeriatric oral healthdental public health

Research Overview

Papers
32
Total Citations
48
Papers (5y)
17
Primary Field
Medicine

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
17total
2022
2023
2024
2025
2026
Citations per year (5y)
5total
20222023202420252026

Selected Papers

15
1
Article|13 citations·2010
새로운 색지표를 이용한 우식활성검사법 개발
강시묵, 정회인, 정승화, 권호근, 김백일

Objects: The aim of this study was to develop a new caries activity test based on colorimetric changes that could better reflect the amount of acid produced by oral bacteria as a broad spectrum of color than the previous test. The optimal candidates were combinations of pH indicators, and these were evaluated in pH buffering solutions and using dental plaque. Materials and Methods: Six pH indicators,Bromocresol-purple (BCP), Bromocresol-green (BCG), Methyl-red (MR), Methyl-orange (MO), Resazurin

2
Article|9 citations·2020
장애인 구강보건의료서비스 현황과 구강보건정책 제안
허지선, 이한규, 정지은, 이보라, 정회인
대한통합치과학회지

We reviewed the current oral health status, the use of dental health services, and the factors that impede access to dental care for disabled people in South Korea and aimed to suggest the future direction of the dental community for establishing the right to oral health for the disabled people. Disabled people experienced more and faster teeth loss than non-disabled people due to the lack of proper oral hygiene management. The rate of not receiving proper dental prosthodontic treatment for the

3
Article|7 citations·2019
우리나라 노인의 구강건강 주요지표
정회인

Korean society is experiencing a very rapid change in population aging. Oral diseases, including dental caries and periodontal disease, are usually cumulative and make oral health worse with age. Preventing tooth loss through the prevention and treatment of caries and periodontal diseases are essential for retaining oral function later in life. This study aimed to identify the trend in oral health status among elderlies over 65 years old, using major oral health indicators of Health Plan 2020. T

4
Article|6 citations·2016
Diagnostic accuracy of a combination of salivary hemoglobin levels, selfreport questionnaires, and age in periodontitis screening
맹유진, 김보라, 정회인, 정의원, 김희은, 김백일

Purpose: This study evaluated the predictive performance of a combination of self-report questionnaires, salivary hemoglobin levels, and age as a non-invasive screening method for periodontitis. Methods: The periodontitis status of 202 adults was examined using salivary hemoglobin levels, responses to 10 questions on a self-report questionnaire, and the Community Periodontal Index (CPI). The ability of those two variables and the combination thereof with age to predict the presence of CPI scores

5
Article|2 citations·2014
Q-Ray View 활용이 치위생과정을 위한 치아 검사의 신뢰도 향상에 미치는 영향
오혜영, 김백일, 정회인, 구혜민

The objective of this study was to evaluate the impact of the Q-ray view, a novel optical device on reliability of assessing a tooth status by dental hygiene students in the training for dental hygiene process. Twenty patients were enrolled in this study. Oral examinations were conducted by both seventeen third-year dental hygiene students and a trained faculty member. Traditional visual inspection was performed in phase I and then re-examined with Q-ray view in phase II. Restoration codes and l

6
Article|2 citations·2020
북한 보건의료전략의 분석과 치과 분야에서의 적용 현황 고찰
정서연, 주우찬, 조재현, 안경수, 이혜원, 최성호, 정회인

In preparing for the era of Korean reunification, it is essential to consider the integration of medical systems and human resources. While Korean dental practitioners are expanding their activities in various fields both domestically and internationally, there are many restrictions on the activities for improving the health of North Korean people due to political and historical reasons even nowadays . In addition, there is little is known about the current state of dental health in North Korea.

7
Article|1 citations·2022
지역사회 거주 노인의 타액선 기능저하 (구강건조) 평가 및 중재
소종섭, 정회인, 강정현, 김지훈

Salivary gland hypofunction (dry mouth) is the most common dysfunction in older adults. It causes a deterioration in oral health, mastication, and swallowing functions. It can also lead to systemic frailty. Early diagnosis and intervention are required to prevent oral and systemic frailty. This literature review introduced the salivary gland hypofunction assessment methods and interventions applicable in community-dwelling older adults. The study proposed an oral mucosal wetness test. The test u

8
Article|1 citations·2014
Consolidated Standards of Reporting Trials의 소개: 무작위 대조군 연구의 보고 지침
정회인, 김희은

Recently, there are lots methodologies to improve the quality of research in medical and public health fields. One of them is to checking a processof research with a reporting guideline before reporting paper. Especially, reporting guideline for randomized controlled trials (RCTs) is theconsolidated standards of reporting trials (CONSORT). Therefore, this review describes the latest version of the CONSORT statement, CONSORT2010, including intent, background, and contents of this. The CONSORT sta

9
Article|1 citations·2022
노인 구강건강의 역학적 특징과 중요성
정회인

Evidence shows oral health is essential for preventing general frailty and increasing healthy life expectancy. In this study, the oral health of the elderly over sixty-five years old was examined through representative indicators selected in the 5th National Health Plan(HP2030). Data from the 5th (2010-2012), 6th (2013-2015), 7th (2016-2018), and 8th (2019) Korea National Health and Nutrition Examination Surveys were used. The subjects were aged sixty-five years or older, and the percentage of h

10
Article|1 citations·2019
한국과 미국 치과대학의 의사소통 교육 비교
정서연, 김은경, 조재현, 허경석, 이주연, 정회인

As the social interest in medical care has increased and the awareness and autonomy of patients have increased, the importance of communication skills with patients has been increasingly emphasized in providing high quality medical services. In medical education, such education has become an important area in medical school and lifelong medical education, with studies showing that communication skills can be improved through education and training, and that this learned communication skills can

11
Article|1 citations·2021
국내체류 외국인 및 다문화가족의 구강건강 및 치과의료이용에 대한 주제범위 문헌고찰
이보라, 김대엽, 허지선, 김수연, 최성호, 정회인

Background : Research on oral health and dental service utilization of foreign residents and multicultural families in Korea will play an important role as a fundamental data for establishing future oral health policies in the multicultural society. Objective : In this scoping review, previous studies on oral health and dental service utilization of foreign residents and multicultural families in Korea were reviewed, and the studies were classified according to research participants and research

12
Article|1 citations·2022
코로나바이러스(SARS-CoV-2)에 대한 구강 양치액의 효과: 주제 범위 문헌고찰
이주영, 김효정, 정회인, 김백일

Although studies reporting the efficacy of mouth rinse against SARS-CoV-2 have been continuously published, it is challenging to select literature through qualitative meta-synthesis or quality assessment of the study. Therefore, this study aims to systematically review the efficacy of mouth rinse against SARS-CoV-2 using the scoping review method and to provide the latest information. Literature search on electronic databases (PubMed, Scopus, and Cochrane Trials) was conducted. After establishin

13
Article|1 citations·2021
구강 질병부담 연구와 개선 방안
정주현, 정회인

Measuring and quantifying the burden of disease (BoD) is crucial for healthcare policy-related decisions. For this purpose, summary measures of population health (SMPH) have been proposed to overcome the limitations of prevalence, incidence, and mortality. Oral health remains separated from the mainstream healthcare system, and the lack of reliable epidemiological data has been pointed out as the cause. In this study, we aimed to understand the flow of international and domestic BoD research rel

14
Article|1 citations·2024
연령과 성별에 따른 구강 노쇠의 변화와 임상적 활용 방안의 제안
조민지, 정회인, 김태우, 한선영
한국임상치위생학회지

Objective: This study aimed to identify and report the changes in oral frailty diagnosis among older Korean adults according to age and sex. Methods: The study included 217 individuals aged 60 years or older who visited senior centers. The final analysis included 100 individuals with complete data on the diagnostic items of oral frailty. After subdividing by age and sex, the average of each age group for diagnostic items was analyzed. Results: The items with oral hypofunction tended to increase

15
Article|1 citations·2022
구강노쇠 임상진료지침
소종섭, 정회인, 김남희, 고석민, 이지나, 김지훈, 이정옥, 강정현

The associations between lowered oral health status and frailty in elderly have been previously reported in many studies. Despite the increasing number of elderly populations in Korean society, there have been no attempt to develop clinical practice guideline and diagnostic criteria for oral frailty. Hence, this study reviewed the previous cohort studies and systematic reviews about oral frailty and proposed 15 recommendations as an oral frailty guideline for Korean elderly on the basis of the e

Research Areas

Nephrology

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