Determining the factors associated with oral health-related quality of life in Chinese elders: Findings from the fourth national survey.

Objective: The purpose of this study was to assess the associations between the self-reported oral health-related quality of life (OHRQoL) of older Chinese people and their socio-economic status and oral health using data collected in the 4th National Oral Health Survey.

Methods: After multistage stratified cluster sampling, 4332 adults aged 65-74 years participated in the study. After a clinical examination, the participants completed a structured questionnaire.

A two-week single-group longitudinal test of a new sonic-powered toothbrush simulating the 'bass brushing technique' with tapered bristles on the brush head for reduction of dental plaque and gingivitis.

Objective: To investigate the effect of a new powered toothbrush with tapered bristles on the brush head for the reduction of dental plaque and gingivitis.

Methods: This was a single-centre, single-group, longitudinal clinical trial. Thirty-two participants who were typical manual toothbrush users were recruited and assigned the sonic-powered brush.

Effect of poly (γ-glutamic acid)/tricalcium phosphate (γ-PGA/TCP) composite for dentin remineralization in vitro.

The poly (γ-glutamic acid)/tricalcium phosphate (γ-PGA/TCP) composite was fabricated as a novel biomineralization material function in preventing caries. Demineralized bovine dentin specimens were prepared and randomly divided into 5 groups (i. α-TCP, ⅱ.

Factors Impacting the Oral Health-related Quality of Life in Chinese Adults: Results from the 4th National Oral Health Survey.

Objective: To explore the clinical and socio-demographic factors influencing oral health-related quality of life (OHRQoL) of Chinese adults in the 4th National Oral Health Survey.

Methods: Multistage stratified cluster sampling and PPS method were used in sampling and 4720 adults aged 35 to 44 years were recruited. The study subjects completed a structured questionnaire in an interview and underwent a clinical examination.

The Prevalence and Associated Risk Indicators of Dental Fluorosis in China: Findings from the 4th National Oral Health Survey.

Objective: To explore the prevalence and associated risk indicators of dental fluorosis in the mainland of China.

Methods: Data for this study was obtained from the 4th National Oral Health Survey in China, conducted from 2015 to 2016. The sample population was 12-year-old school students.

Analysis of sucrose-induced small RNAs in Streptococcus mutans in the presence of different sucrose concentrations.

Streptococcus mutans (S. mutans) is the major pathogen contributing to dental caries. Sucrose is an important carbohydrate source for S.

Randomized clinical trial on the efficacy of electric and manual toothbrushes in plaque removal and gingivitis control in visually impaired school students.

Objective: To evaluate the efficacy of electric or manual toothbrushes in plaque removal and gingivitis control in visually impaired adolescents.

Method And Materials: A randomized, controlled, examiner-blind crossover design was used in the study. Study subjects were 12- to 16-year-old visually impaired students from the School for the Blind in Guangzhou.

The relationship between children's oral health-related behaviors and their caregiver's social support.

Background: Social support might play a role in helping people adopt healthy behaviors and improve their health. Stronger social support from mothers has been found to be positively related to higher tooth brushing frequency in 1- to 3-year-old children. However, little is known regarding the relationship between the caregiver's social support and the oral health-related behaviors of 5-year-old children in China.

Genetic polymorphisms of the sortase A gene and social-behavioural factors associated with caries in children: a case-control study.

Background: Streptococcus mutans (S. mutans) is the primary etiological agent of dental caries. Sortase is a transpeptidase that anchors several surface proteins to the S.

Prevalence of non-carious cervical lesions and associated risk indicators in middle-aged and elderly populations in Southern China.

Objective: To explore the prevalence of NCCL and associated risk indicators in 35- to 44-year-olds and 65- to 74-year-olds from both urban and suburban districts of Guangzhou, Southern China.

Methods: A cross-sectional survey was conducted on NCCL with a sample of 768 35- to 44-year-olds and 991 65- to 74-year-olds, and the Tooth wear index was applied to record the tooth wear. Data on socioeconomic status, health behaviour and general health condition were obtained from a structured questionnaire.

Factors related to children's caries: a structural equation modeling approach.

Background: Dental caries among preschool children is highly prevalent in many less-developed countries.

Methods: A model which explored the factors related to children's dental caries was tested in this study using structural equation modeling. Caregivers of children aged 5 years were surveyed on their socioeconomic status, and their oral health knowledge, attitudes and practices.

Randomized clinical trial on effectiveness of silver diamine fluoride and glass ionomer in arresting dentine caries in preschool children.

Objective: To compare the effectiveness of annual topical application of silver diamine fluoride (SDF) solution, semi-annual topical application of SDF solution, and annual application of a flowable high fluoride-releasing glass ionomer in arresting active dentine caries in primary teeth.

Methods: A total of 212 children, aged 3-4 years, were randomly allocated to one of three groups for treatment of carious dentine cavities in their primary teeth: Gp1-annual application of SDF, Gp2-semi-annual application of SDF, and Gp3-annual application of glass ionomer. Follow-up examinations were carried out every six months to assess whether the treated caries lesions had become arrested.

[A study on oral health behavior and other related factors between children with high dmft and no caries].

Objective: To explore the risk factors of children with high dmft.

Methods: In suburban of Guangzhou, oral health of 401 3 - 4-year-old children were examined and structured questionnaire were completed by their parents. 120 children with highest number of dmft (dmft > or = 5) and 118 caries-free children were chosen for case-control analysis.

[Arbitrarily primed-PCR detection of Streptococcus mutans and Streptococcus sobrinus in dental plaque of children with high dmft and no caries].

Objective: To isolate and identify Streptococcus mutans (Sm) and Streptococcus sobrinus (Ss) in dental plaque of children with high dmft and no caries by selective medium, biochemical methods and arbitrarily primed-polymerase chain reaction (AP-PCR).

Methods: A total of 401 3-4-year-old children from seven kindergartens were recruited using cluster sampling and their dental caries status were examined. From 30% of children with the highest dmft score (dmft >/= 5), 20 children were chosen randomly as test group and 20 age and gender-matched caries-free children were selected as control.