The study is a cross-sectional survey on the situation of dental caries in the population living in the Red river delta and in the Mekong river delta. The result of the study indicated that: 1. In both areas, the percentage of primary dentition is very high. The percentage of caries in the permanent dentition and DMFT index increases a cross the age groups in both areas. In the Mekong river delta, the situation of caries in children is more serious. 2. The percentage of adults who had dental caries is very high in both areas and the DMFT index in Mekong river delta is higher. 3. Almost all children 6-14 years old who had dental caries are untreated in both areas. In other groups, the percentage of filling teeth is higher but it is still in very low level and also lower than 8% for all age groups
Dental Caries, Epidemiology

A survey on tooth caries at 5 primary schools of Hoa Binh province was performed. The prevalence of caries of 61.75% was concluded for milk teeth, 31.78% for permanent teeth. There were 2.4 teeth of caries for each school child. In minority ethnic children, this prevalence was higher than in Kinh ethnic children, this was related to the living habits and the tooth brushing practice.
Dental Caries ; Schools ; Epidemiology

From October 2002 to October 2003, in Military Hospital No103 and its sub-units, odonto-stomach morbidities were investigated. In 54,04% of subjects, there were dental caries; 1,52% dental stop lost, epiodontosis reached 95,40%, which progressed with age: in 15,80% of subjects, there were loss of tooth, in 3,26% tooth extract was needed and in 14,51% prothesis needed
Diagnosis ; Military Personnel ; Epidemiology ; Dental Caries

China ; epidemiology ; Dental Caries ; epidemiology ; prevention & control ; Humans ; Prevalence

Conception of public health was firstly put forward by American professor Winslow. Ensuring and promoting the health of general population is the key connotation for the definition of public health. Oral disease has become a public health problem. Caries which preventable and curable is the most common oral disease and the etiology is also clear. Oral health comprehensive intervention program for children in central and western regions was set up in 2008 by Chinese government. The program included sealing on the first permanent molar and oral health education towards primary school children covering mid-west area. This was the first oral health program invested by government and managed by Chinese Stomatological Association. Six years later, the program was popularized to the whole nation, and renamed as national oral health comprehensive intervention program for children in China. The program had made deep impact on development of oral health service in China. The study tries to analyze the challenges of oral health service through reviewing the background, content, organization and effectiveness of the program, aiming to provide suggestions on policy, financing, system, ability and technology for the future development.
Child ; Humans ; China ; Dental Caries/epidemiology* ; Oral Health ; Public Health ; Dental Health Services

Age Factors ; China ; epidemiology ; Dental Caries ; epidemiology ; Dental Health Surveys ; Epidemiologic Studies ; Humans ; Oral Health ; Periodontal Diseases ; epidemiology ; Prevalence

OBJECTIVETo evaluate the differences in temperament between children with early childhood caries (ECC) and an age-matched children without ECC.

METHODSA total of 219 3-year-old children were selected in urban areas of Beijing, who were physically and mentally healthy. There were 109 children in ECC group, who had unfilled caries in 1 or more surfaces in primary maxillary anterior teeth, and 110 children without caries. The children were examined for ECC levels, and their parents were asked to complete the NYLS Temperament Scale questionnaire. Then the data was collected and analyzed.

RESULTSChildren with difficult, intermediate high or slow-to-warm-up temperament had more severe caries than children with easy or intermediate low temperament. There was a significant difference in temperament attribute "Activity level" between male children with ECC and without ECC. There was a significant difference in temperament attribute "Rhythmicity" between female children with ECC and without ECC.

CONCLUSIONSThere were some differences in temperament between 3-year-old children with ECC and without ECC in urban areas of Beijing.

Child, Preschool ; China ; epidemiology ; DMF Index ; Dental Caries ; epidemiology ; psychology ; Female ; Humans ; Male ; Temperament

OBJECTIVETo survey the prevalence of dental caries and the needs for dental treatment in Anhui province.

METHODSThe survey of prevalence of dental caries in group aged 12 and 15 years in Anhui province was conducted using the non-proportional, stratified, cluster sampling method.

RESULTSDMFT in 12-year and 15-year group was 0.58 and 0.95 respectively, and permanent tooth caries prevalence rate was 30.78% and 39.78% respectively, lower than that of same age of other 11 provinces in mainland China (P < 0.01). The constituent ratio of DMFT was 90.51% (D), 2.48% (M), 7.01% (F) in 12-year group and 86.78% (D), 4.30% (M), 8.92% (F) in 15-year group.

CONCLUSIONSWhen we controlled dental caries in 19.98% 12-years crowd and 22.8% 15-years crowd of Anhui province, we will had controlled the occurrence of 80% caries too in group aged 12 and 15 years.

Adolescent ; Child ; China ; epidemiology ; Dental Caries ; epidemiology ; prevention & control ; Female ; Humans ; Male ; Prevalence ; Sampling Studies

Obesity and dental caries are increasing epidemics, especially among children and adolescents. This epidemiological observational cross-sectional study was conducted to assess the possible association between body mass index (BMI) and dental caries among 111,792 school children and adolescents in Jiangsu Province. We found that 13.14% participants of the study sample were overweight, and 7.37% were obese. The prevalence of dental caries was 12.95% in overweight and 7.89% in obese students. There were significant differences in caries prevalence by sex, region, age group, and BMI. Overweight and obesity statuses were associated with dental caries among the study population. BMI and dental caries present a continuous health problem. Thus, we recommend that oral health promotion be used for caries prevention and control.
Adolescent ; Body Mass Index ; Child ; China ; epidemiology ; Dental Caries ; epidemiology ; etiology ; Female ; Humans ; Male ; Obesity

OBJECTIVE: This study aimed to evaluate the risk factors of radiation-induced caries by using a multiple linear regression equation and to provide the basis for the effective prevention of radioactive caries. METHODS: A total of 166 patients with head and neck cancer who underwent radiotherapy were selected as subjects. The number of decayed, missing or filled surfaces were recorded. Questionnaire contents included age, sex, radiation dose, and radiotherapy techniques. Multiple stepwise regression analyses were performed to identify the risk factors of radiation-induced caries. RESULTS: Multiple stepwise regression analyses indicated that the main risk factors of radiation-induced caries were plaque index, radiotherapy techniques, time after radiotherapy, and radiotherapy dose. CONCLUSIONS The awareness of dental care and caries treatment should be improved to reduce the occurrence of radiation-induced caries in patients with head and neck cancer. In addition, intensity modulated radiation therapy should be employed to decrease the radiation exposure dose received by teeth.
Dental Caries ; epidemiology ; etiology ; Head and Neck Neoplasms ; radiotherapy ; Humans ; Radiation Injuries ; epidemiology ; Risk Factors ; Tooth