- Transversal study on french national prevalence of dental decay in children (2006) 
Head :
Desfontaine Jacques
Hescot Patrick
Hescot Patrick
Last update : 09/05/2017 | Version : 1 | ID : 258
| General | |
| Identification | |
| Detailed name | Transversal study on french national prevalence of dental decay in children (2006) |
| CNIL registration number, number and date of CPP agreement, AFSSAPS (French Health Products Safety Agency) authorisation | -- |
| General Aspects | |
| Medical area |
Odontology |
| Pathology (details) | sociodemographic factors, accidents and injuries, chronic diseases |
| Health determinants |
Social and psychosocial factors |
| Others (details) | tooth decay |
| Keywords | tooth decay, DF and DMF indexes, childhood, prevalence, social health inequalities, prevention |
| Scientific investigator(s) (Contact) | |
| Name of the director | Desfontaine |
| Surname | Jacques |
| Address | Union Française pour la Santé Bucco-Dentaire (UFSBD) - 7 rue Mariotte - 75017 Paris |
| Phone | + 33 (0)1 44 90 72 80 |
| jacquesdesfontaine@ufsbd.fr | |
| Organization | Union Française pour la Santé Bucco-Dentaire (UFSBD) - Association loi |
| Name of the director | Hescot |
| Surname | Patrick |
| Address | Union Française pour la Santé Bucco-Dentaire (UFSBD) - 7 rue Mariotte - 75017 Paris |
| Phone | + 33 (0)1 44 90 72 80 |
| patrickhescot@ufsbd.fr | |
| Organization | Union Française pour la Santé Bucco-Dentaire (UFSBD) - Association loi |
| Collaborations | |
| Funding | |
| Funding status |
Public |
| Details | Ministère de la santé et des solidarités -Direction générale de la santé |
| Governance of the database | |
| Sponsor(s) or organisation(s) responsible | Union Française pour la Santé Bucco-Dentaire (UFSBD) |
| Organisation status |
Public |
| Additional contact | |
| Main features | |
| Type of database | |
| Type of database |
Study databases |
| Study databases (details) |
Repeated cross-sectional studies (except case control studies) |
| Database recruitment is carried out by an intermediary |
A population file |
| Database recruitment is carried out as part of an interventional study |
No |
| Additional information regarding sample selection. |
The population of children selected for each age group (1,300) is representative of the French population at this age. The sample is drawn from computer files supplied by the French Education Ministry's Prospective Evaluation Directorate. These comprise indications on the type of town in which each school is based, as well as the number of children in school in the level. Each school has a proportional probability of choice to the number of its pupils. Samples will be drawn non-exhaustively and put back once they've been picked (so the same school may possibly be picked several times). Cluster sampling is carried out, for each stratum, from schoolchildren by giving an estimation of the number of children concerned. The sampling is drawn from the 5,000 children necessary per age group. Only 26% of these children will be examined. So as to guarantee a certain safety margin (absent children, difference between the number of children in one age group and the year group to which they should belong...), a third of the age group is selected, i.e. the children born more or less 3 months from the exam date. Whether or not the school belongs to a priority education zone (ZEP) is also looked into to ensure representativeness. Before analyzing the results, the samples are rectified so that they are strictly representative according to the criteria set at the outset by the stratification method and that the breakdown per stratum is an exact reflection of the structure observed in the sampling base. |
| Database objective | |
| Main objective | Perform reliable and representative studies in France of the dental health of school children from 6 to 12 years old and at regular intervals (every 5 years). Through these studies, it must be possible to assess the health, pathology, care administered and treatment needs of children as well as the trends in the population's dental health. |
| Inclusion criteria |
children born between 1/07/1999 and 31/12/1999 for 6 year-old children children born between 1/01/1994 and 30/06/1994 for 12 year-old children |
| Population type | |
| Age |
Childhood (6 to 13 years) |
| Population covered |
General population |
| Gender |
Male Woman |
| Geography area |
National |
| Detail of the geography area | stratification on school type and size of town (sampling in clusters) |
| Data collection | |
| Dates | |
| Date of first collection (YYYY or MM/YYYY) | 1987 |
| Date of last collection (YYYY or MM/YYYY) | 2006 |
| Size of the database | |
| Size of the database (number of individuals) |
[1000-10 000[ individuals |
| Details of the number of individuals | 2600 |
| Data | |
| Database activity |
Data collection completed |
| Type of data collected |
Clinical data Declarative data Administrative data |
| Clinical data (detail) |
Medical registration |
| Declarative data (detail) |
Face to face interview |
| Administrative data (detail) | age, gender, profession and social category of parents |
| Presence of a biobank |
No |
| Health parameters studied |
Health event/morbidity Health care consumption and services Others |
| Care consumption (detail) |
Medical/paramedical consultation |
| Other (detail) | prevention (habits, screening), social health inequalities |
| Procedures | |
| Classifications used | For 6 year-old children, the following is listed: • the mean DF index: mean number (and standard deviation) of teeth present, decayed teeth and temporarily filled teeth, • the mixed DMF index: mean number (and standard deviation) of teeth present, decayed teeth, missing teeth and mixed filled teeth, mean, • the distribution of the DF index. For 6 and 12 year-old children, the following is listed: • the mean CMF index: mean number (and standard deviation) of teeth present, decayed teeth, missing teeth and permanently filled teeth, • the results on the first adult molars, • the results on the other adult teeth, • the proportions of children with no untreated decayed teeth (D = 0) or affected teeth (DMF = 0) as well as those without any trace of treatment (F = 0), • the treatment index calculated on children with at least one affected tooth (DF ≠ 0). It measures the proportion of teeth treated compared to all of the affected teeth - whether they are treated or not, • the percentage of care needs expressed by the formula [F/DF =0] +[0< F/ DF <1], • the good dental health index, • the other care needs (orthodontics, hygiene, gingivitis, tartar), • the presence of injuries, • the presence of crack and pit sealing, • recourse to a dentist. For social categories and professions: INSEE PCS 2003 nomenclature |
| Participant monitoring |
No |
| Links to administrative sources |
No |
| Promotion and access | |
| Promotion | |
| Link to the document | http://www.ufsbd.fr/index.php?Itemid |
| Access | |
| Terms of data access (charter for data provision, format of data, availability delay) |
The results are analyzed and presented in the form of a listing for each item and index studied. The results' interpretation is subject to a report submitted to the French Directorate General for Health with results tables appended. A monograph of this report is published by the UFSBD and a PDF version of the document put online at ufsbd.fr. The survey is distributed on the database of the World Health Organization, since the UFSBD is the WHO collaborating center for the development of new education concepts and dental health practices. |
| Access to aggregated data |
Access on specific project only |
| Access to individual data |
Access on specific project only |
