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 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

OBJECTIVETo investigate the status of dental caries in the human of Tang dynasty.

METHODSAll teeth in 62 human skulls of Tang dynasty excavated from the Chang'an county in Xi'an city were examined and analyzed by statistics. The difference of prevalence in different group including age, sex and tooth position was tested with Chi-square test.

RESULTSThe prevalence of dental caries was 62.9%. And there were 92 caries teeth, which was 14.6% of the whole teeth. The root caries (33.3%) was more than the occlusal caries (28.7%). The most frequent recorded caries were the third molar, followed by the second molar, then the first molar. There was no significant difference between male and female.

CONCLUSIONSThe dental caries was popular in human of Tang dynasty, but the prevalence lowers than the modern people. And with the human evolution and the improvement of the social productivity, the prevalence of dental caries was gradually ascending.

Adult ; Archaeology ; China ; epidemiology ; DMF Index ; Dental Caries ; epidemiology ; Female ; Humans ; Male ; Middle Aged ; Prevalence

OBJECTIVETo investigate the difference between the results of using two standards(CPI and No.5 sharp probes) in the diagnosis of clinical dental caries during epidemiological survey.

METHODSThe CPI and No. 5 sharp probes were used respectively for the diagnosis of clinical dental caries in the same group of children aged 12 by the two examiners. This group of children were reexamined after 14 days to compare the consistency and the rate of coincidence of the location of teeth and caries average and the prevalence rate of dental caries diagnosed by the two kinds of probes.

RESULTSThe difference between the location of teeth with caries examined by the two different standards respectively by the same examiner was not statistically significant. The difference between caries average and the prevalence rate of dental caries examined with the two different standards respectively by the same examiner was also not statistically significant. The difference between the outcomes of the crossover comparison by the two examiners showed no statistical significance.

CONCLUSIONSThere was no significant difference between the two diagnostic standards for caries. The outcomes of the diagnosis based on both standards shows a similarity. CPI could replace No. 5 sharp probes due to its convenience in large scale of oral health survey.

Child ; China ; epidemiology ; DMF Index ; Dental Caries ; diagnosis ; epidemiology ; Female ; Humans ; Male ; 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