This study was designed to determine private dental services use in the UK and to determine if those who use an independent dental service attend more regularly, in addition to identifying factors associated with the use of private dental care. A random probability sample of 2668 addresses was selected from the British Postcode Address File (PAF) and 1865 adults aged 16 years or older took part in this study (70%). Respondents were interviewed in their homes about their use of dental services and socio-demographic information was collected. The data were analysed using the statistical package CHAID. A total of 23% (424) reported to be seen on a private basis the last time they visited the dentist. Of those, 54% (230) reported to have attended the dentist within the last six months compared to 46% (629) of those who used NHS services (P < 0.05). Level of income was identified as the most significant factor in determining the use of private services, this being greater for those earning above 30,000 Pounds (P < 0.05). For those on low (< 10,000 Pounds) or middle (10,000 Pounds-< 30,000 Pounds) incomes, area of residence was the next most important factor in determining private service use. Residents of London and the South East in both low- and middle-income groups were more likely to use private services (P < 0.05). Residents of the North of England and the Midlands/East Anglia were less likely to use private services (P < 0.05). In conclusion, income and area of residence appear to be the most important determining factors in the use of private dental services.