Brennan D S, Spencer A J
AIHW Dental Statistics and Research Unit, Dental School, Faculty of Health Sciences, The University of Adelaide, South Australia 5005.
Int Dent J. 2003 Jun;53(3):145-52. doi: 10.1111/j.1875-595x.2003.tb00739.x.
To investigate time trends in service provision.
Four cross-sectional surveys across a 15-year period.
Australian private general practice.
A random sample of dentists.
Dentists were surveyed by mailed questionnaire in 1983, 1988, 1993 and 1998 (response rates 71%-75%). Data were weighted to provide representative estimates for the age by sex distribution of private general practitioners in 1983, 1988, 1993 and 1998.
Services per visit, annual services per dentist, annual services per patient.
Total services per visit increased over the study period from 1.78 to 2.14 (Poisson regression; p < 0.05). However the annual number of services provided per dentist did not vary significantly, reflecting a trend among dentists to supply fewer patient visits per year. The annual number of services provided per patient increased over the period from 3.47 to 5.22 (OLS regression; p < 0.05), reflecting both the increased service rate per visit and increased numbers of visits by patients. Dentists provided less restorative, prosthodontic and extraction services per year, but more endodontic and crown and bridge services. The pattern of annual care received per patient also included more endodontic and crown and bridge services but differed from the dentist pattern through increased service rates over the study period in areas such as restorative, diagnostic and preventive.
While dentists are providing a similar number of services annually, the content of their workload has changed to include less emphasis on removal and replacement of teeth and more effort on maintenance and retention of natural dentitions.
调查服务提供的时间趋势。
15年期间的四项横断面调查。
澳大利亚私人全科医疗。
牙医随机样本。
在1983年、1988年、1993年和1998年通过邮寄问卷对牙医进行调查（回复率71%-75%）。数据进行加权处理，以提供1983年、1988年、1993年和1998年按年龄和性别分布的私人全科医生的代表性估计值。
每次就诊服务量、每位牙医每年服务量、每位患者每年服务量。
在研究期间，每次就诊的总服务量从1.78增加到2.14（泊松回归；p<0.05）。然而，每位牙医每年提供的服务数量没有显著变化，这反映出牙医每年提供的患者就诊次数呈减少趋势。每位患者每年接受的服务数量在此期间从3.47增加到5.22（普通最小二乘法回归；p<0.05），这既反映了每次就诊服务率的提高，也反映了患者就诊次数的增加。牙医每年提供的修复、假牙修复和拔牙服务减少，但牙髓病和冠桥修复服务增加。每位患者每年接受的护理模式也包括更多的牙髓病和冠桥修复服务，但与牙医模式不同，在修复、诊断和预防等领域，研究期间服务率有所提高。
虽然牙医每年提供的服务数量相似，但其工作量的内容已发生变化，减少了对牙齿拔除和替换的重视，而更多地致力于天然牙列的维护和保留。
