Stability of practice beliefs and preferences for patients among private general dentists: a comparison of 1997 and 2007

Background:  Practice beliefs and dentist preferences for patients have been related to service rates and appropriateness of care. If practice beliefs and preferences for patients are stable then they could restrain long-term changes in practice styles and service rates. The aim of this paper was to assess the stability of practice beliefs and preferences for patients between 1997 and 2007.
Methods:  Practice beliefs and dentist preferences for patients were recorded on a five-point Likert scale using mailed questionnaires from a random sample of dentists in 1997 (response rate = 60 per cent) and 2007 (response rate = 77 per cent).
Results:  In both 1997 and 2007, n = 215 dentists provided data. For practice beliefs, 1 out of 8 items were significantly different (p < 0.05; McNemar's test) between the two observations (12.5 per cent of practice belief items) while 5 out of 37 dentist preferences for patient characteristics items were significantly different (13.5 per cent of items).
Conclusions:  The majority of items were not significantly different over time. This demonstrates a generally high degree of stability over time in the level of agreement with dentist practice beliefs and preferences for patients. Given that it may be difficult for clinicians to change practice beliefs and behaviours that have become established, it is important for policy makers to understand the relationship between provider characteristics and service patterns and for educators to positively shape beliefs and behaviours through undergraduate and continuing education.