The relationship between registration and dental health benefit in 8- and 9-year-old children in Cheshire.

The dental treatment needs of 8- and 9-year-old children registered with a GDP for at least 6 months were compared with the dental treatment needs of children from a similar social background who were neither registered nor regularly attending the Community Dental Service. The children were examined by one of the authors without prior knowledge of registration status for evidence of treatment need. Unequivocal treatment need was defined as untreated dental caries in permanent teeth, sepsis associated with deciduous teeth, instanding maxillary incisors, and untreated permanent teeth fractured into dentine; untreated caries in the deciduous teeth was also recorded. Registration status of the children was subsequently obtained from the Dental Practice Board. Sixty-three per cent of the children had been registered with a GDP for at least 6 months at the time of the survey, 6% had been registered for less than 6 months and 31% had never been registered under the new dental contract. Of the children who had been registered for more than 6 months, 18.5% had unequivocal treatment need as against 17.5% in the unregistered group; 40.4% of the registered children had decay in their deciduous teeth, as against 36.5% of the unregistered children. Comparison of the dental treatment needs of registered and unregistered children showed no significant difference between the two groups.