Kitty Jieyi Chen

Sun Yat-Sen University | SYSU · Guanghua School of Stomatology

Objectives: This study aimed to systemically review the tools developed for evaluating oral health-related quality of life (OHRQoL) in preschool children. Methods: Two reviewers systematically searched English-language publications within PubMed, Embase, Scopus, and Web of Science. They screened the titles and abstracts and retrieved the full te...

Objectives : This study aimed to explore parental perspectives on an outreach dental service and silver diamine fluoride (SDF) therapy to arrest and prevent early childhood caries. Methods : This qualitative study collaborated with an outreach service offering SDF therapy to kindergarten children and oral health education to the children's parents...

Background Silver diamine fluoride (SDF) and sodium fluoride (NaF) are widely used for caries management. The objectives of this study are (i) to compare the caries-arresting and caries-preventive effects of SDF and NaF in young children, (ii) to determine children’s and parents’ acceptance of these fluoride therapies and (iii) to investigate the s...

Background: The Yi ethnic group is the sixth largest minority in China. The aim of this study was to investigate dental caries status among Yi preschool children in the Yunnan province, China. Method: This cross-sectional study invited 5-year-old Yi children using multistage cluster sampling. Two trained and calibrated dentists examined the chil...

Silver diamine fluoride (SDF) was developed in Japan in the 1960s. It is a clear solution containing silver and fluoride ions. Because of its anti-bacterial and remineralizing effect, silver diamine fluoride has been used in managing dental caries for decades worldwide. This paper aims to summarize and discuss the global policies, guidelines, and r...

Aim: Early childhood caries (ECC) has significant public health implications but has received inadequate global attention. There is limited information regarding the success of oral health policies implemented to address the challenges of ECC. This review aimed to summarize such policies to tackle ECC from different countries/regions. Method: Indep...

Background: The aim of this cross-sectional study was to investigate the oral health status of Hani 12-year-old children in Yunnan, a province in Southwest China. Method: This study employed a multistage sampling method to recruit children from local primary schools. Two calibrated dentists examined the status of dental caries, gingival bleeding...

Qualitative research collects non-numerical data that explores human behaviour, attitudes, beliefs and personality characteristics unamendable to quantitative research. The qualitative research questions are open-ended, evolving and non-directional. The study design is flexible and iterative. Purposive sampling is commonly used. The sample size is...

Background Lisu is an ethnic minority group and most of them are living in Yunnan, China. This study investigated the oral health status among 12-year-old Lisu children in Yunnan. Method This survey employed a multistage sampling method to recruit 12-year-old Lisu children. Two calibrated dentists performed the oral examinations in the primary sch...

This 24-mo randomized controlled trial was based on a double-blind parallel design, and it compared the effectiveness of 2 fluoride application protocols in arresting dentine caries in primary teeth. Three-year-old children with active dentine caries were recruited and randomly allocated to 2 treatment groups. Children in group A received a semiann...

Background: Lisu is an ethnic minority group and most of them are living in Yunnan, China. This study investigated the oral health status among 12-year-old Lisu children in Yunnan. Method: This survey employed a multistage sampling method to recruit 12-year-old Lisu children. Two calibrated dentists performed the oral examinations in the primary sc...

Early childhood caries (ECC) remains the single most common chronic childhood disease. Untreated caries can cause tooth loss and compromised dentition. Severe ECC can also influence nutrition intake, cognitive development, general health and quality of life. In Hong Kong, approximately half of 5-year-old children suffer from ECC, and more than 90%...

Objective The aim of this randomised non-inferiority clinical trial was to compare the effectiveness of semi-annual (every six months) applications of 25 % silver nitrate (AgNO3) solution followed by 5 % sodium fluoride (NaF) varnish to semi-annual applications of 38 % silver diamine fluoride (SDF) solution in arresting early childhood caries (ECC)...

Background: Silver diamine fluoride (SDF) and sodium fluoride (NaF) are widely used for caries management. The objectives of this study are i) to compare the caries-arresting and caries-preventive effects of SDF and NaF in young children, ii) to determine children’s and parents’ acceptance of these fluoride therapies, and iii) to investigate the sh...

Background Lisu is an ethnic minority group living in Yunnan, a province in Southwest China. This study investigated the oral health status among 12-year-old Lisu children in Yunnan. Method A multistage sampling method was adopted to recruit 12-year-old Lisu children from primary schools. A self-administrated questionnaire was distributed to the c...

Background: Lisu is an ethnic minority group and most of them are living in Yunnan, China. This study investigated the oral health status among 12-year-old Lisu children in Yunnan. Method: This survey employed a multistage sampling method to recruit 12-year-old Lisu children. Two calibrated dentists performed the oral examinations in the primary sc...

Objectives: The objectives of this cross-sectional study were to investigate the fear level of kindergarten children in the general population during dental outreach in a familiar kindergarten setting, and to explore the factors associated with the dental fear of kindergarten children. Method: Consecutive sampling method was used to select kinderga...

Fear and anxiety constitute an important theme in dentistry, especially with children. Anxiety and the fear of pain during dental treatment can lead to avoidance behaviour, which contributes to perpetuating fear and anxiety of dental care. Understanding and assessing dental fear and anxiety in children is important for delivering successful dental...

Objective: This study aimed to investigate the association between oral health-related quality of life (OHRQoL) and caries experience of Hong Kong preschool children. Methods: Parents or primary caregivers of Hong Kong preschool children were invited to complete a self-administered dental health questionnaire. The study children were examined in...

Objective: The objective of this study was to compare the caries, periodontal status, and toothbrushing practices of Chinese elderly people with and without dementia. Methods: This cross-sectional study recruited Chinese people aged 65 years or over attending daycare centers in Hong Kong. The participants' dementia status was identified from the...

Background: Silver diamine fluoride (SDF) solution is effective in arresting early childhood caries (ECC). Previous studies have suggested that it might exert a preventive effect in managing ECC. However, no well-designed clinical trials have yet been performed to study the effect of SDF on caries prevention. The objective of this randomised clini...

Objective: To adapt the oral health-related quality of life (OHRQoL) measurement tool SOHO-5 (scale of oral health outcomes for 5-year-old children) for use in Chinese populations, and to investigate the validity and reliability of the Chinese version of SOHO-5 (C-SOHO-5). Materials and methods: The draft C-SOHO-5 was developed by a forward-back...

Objectives: The aim of the study was to describe the feasibility, safety and acceptability of a school-based intervention program using silver diamine fluoride (SDF) therapy for caries arrest in preschool children. Methods: A large-scale school-based intervention program using SDF for caries management was implemented in preschool children in Hong...

Objectives: The objective of this study is to compare the effectiveness of two topical fluoride application protocols in arresting coronal dentine caries of primary teeth among preschool children. Methods: This is a double-blind, two-arm, parallel-design randomized controlled trial. Children aged 3-4 years old who had at least one coronal dentine...

Objective The aim of this study was to describe the prevalence of dental caries among 3‐ to 5‐year‐old children in Hong Kong and to investigate the factors associated with their dental caries status. Methods Seven kindergartens in Hong Kong were selected using stratified random sampling. The 3‐ to 5‐year‐old kindergarten children were invited to j...

The current mode of dental caries management mainly operates through irreversible and symptomatic treatment by means of drilling and filling, while caries prevention is largely overlooked or omitted. Focus should be redirected through a medical model towards elimination of the disease through tackling its causes and risk factors to address current...

Oral diseases remain one of the major global public health challenges, and the worldwide urban–rural disparities in oral health are significant. Residents in rural areas generally suffer from a higher prevalence and severity of dental caries and periodontal disease, yet they face numerous difficulties and barriers in accessing oral healthcare. Conv...

Objective This study aimed to assess the prevalence of erosive tooth wear among 3‐ to 5‐year‐old children in Hong Kong and to determine the effect of socioeconomic factors, dental habits and oral hygiene on their dental erosive wear status. Methods Stratified random sampling was adopted. Their parents were asked to complete a questionnaire regardi...

The aim of the present review was to describe the updated prevalence of early childhood caries (ECC) among 5‐year‐old children globally. Two independent reviewers performed a systematic literature search to identify English publications from January 2013 to December 2017 using MEDLINE, ISI Web of Science, and Scopus. Search MeSH key words were “den...

Objectives: The aim of the study was to investigate the effect of silver diamine fluoride (SDF) therapy on the oral health-related quality of life (OHRQoL) of preschool children and their families in a school-based setting. Methods: A prospective study was conducted in six kindergartens in Hong Kong. Parents of the children were invited to compl...

Surveys have shown that the prevalence of early childhood caries (ECC) among 5-year-old children decreased from 63% in 1993 to 55% in 2017. Caries experience was unevenly distributed; 81% of the caries lesions were found in 26% of the children. Risk factors, including oral hygiene practice behaviors, sugar consumption, parental oral health-related...

Abstract: Surveys have shown that the prevalence of early childhood caries (ECC) among 5-year-old children decreased from 63% in 1993 to 55% in 2017. Caries experience was unevenly distributed; 81% of the caries lesions were found in 26% of the children. Risk factors, including oral hygiene practice behaviors, sugar consumption, parental oral healt...

Objectives: This study aimed to assess the prevalence and severity of erosive tooth wear among 3- to 5-year-old children in Hong Kong and to determine the effect of socioeconomic factors, dental habits and oral hygiene on their dental erosion status. Methods: This survey was conducted in 2016 with ethics approval from the University of Hong Kong....

Objectives: The aim of this review was to summarize the information on the prevalence and severity of early childhood caries (ECC) in 5-year-old children in different countries reported in recent publications. Methods: Two independent reviewers performed a systematic literature search to identify papers published in English in the period of Januar...

Background: Dental caries in primary teeth is prevalent, affecting millions of children around the world. Functionalized tricalcium phosphate (fTCP) has been incorporated into sodium fluoride (NaF) varnish to enhance the remineralization process. NaF varnish with the adjunctive application of silver nitrate (AgNO3) solution is effective in arresti...

Hong Kong, as a special administrative region of the People’s Republic of China, is a metropolitan city in Asia with a population of approximately 7.4 million. This paper reflects the oral health care situation in Hong Kong. Water fluoridation was introduced in 1961 as the primary strategy for the prevention of dental caries. The fluoride level is...

Abstract: Surveys have shown that the prevalence of early childhood caries (ECC) among 5-year-old children decreased from 63% in 1993 to 55% in 2017. Caries experience was unevenly distributed; 81% of the caries lesions were found in 26% of the children. Risk factors, including oral hygiene practice behaviors, sugar consumption, parental oral healt...

The latest national survey found that 70% of 5-year-old children in China had dental caries. The prevalence of early childhood caries (ECC) may not only be attributed to poor oral hygiene and unhealthy diet, but also to limited access to and availability of dental care. The prevailing preventive measures adopted by industrialised countries for ECC...

Objective: This study aimed to investigate the association between oral health-related quality of life (OHRQoL) and caries experience of Hong Kong preschool children. Methods: Parents or primary caregivers of Hong Kong preschool children were invited to complete a self-administered dental health questionnaire. The study children were examined in...

Early childhood caries (ECC) is a significant global health problem affecting millions of preschool children worldwide. In general, preschool children from families with 20% of the lowest family incomes suffered about 80% of the ECC. Most, if not all, surveys indicated that the great majority of ECC was left untreated. Untreated caries progresses i...

Background This study investigated dental caries status and its associated factors among 5-year-old children in Hong Kong. Method This cross-sectional survey was conducted in 2016. It comprised a questionnaire survey and a clinical examination. Kindergarten children aged 5 were recruited using a multistage sampling method. Parents of the participa...

Objectives: This cross-sectional survey aimed to study early childhood caries (ECC) status of 3 to 5 years old preschool children in Hong Kong. Methods: This study was conducted in 2016 with ethical approval from Independent Review Board. Seven kindergartens were selected using stratified random sampling method and all kindergarten children aged 3...

Purpose: The aim of the project was to empower and encourage kindergarten teachers to promote oral health among their kindergartens, particularly through curriculum development and knowledge transfer from the teachers to the children’s parents. Method: This project comprised 5 repeated half-day educational workshops at the Prince Philip Dental Hos...