Grembowski D, Conrad D A, Milgrom P
Health Serv Res. 1987 Feb;21(6):755-75.
As the number of families with dental insurance and expenditures for dental care has increased over the past two decades, so has interest in determining cost-sharing effects on dental demand among insureds. Using a representative sample of Pennsylvania Blue Shield children insureds during 1980, we estimate cost-sharing effects on dental demand for basic (diagnostic, preventive, restorative, endodontic, and extraction services) and orthodontic care. Results indicate that cost-sharing has little influence on the probability of using any dental services and basic expenditures. However, the probability of using orthodontic services decreases 2.1 percent when the proportion of orthodontic expenditures paid by the parent increases 10 percent. By reducing the cost of care, cost-sharing reduces social class differences in dental demand common in unisured populations, likely producing public oral health benefits.
在过去二十年里，随着拥有牙科保险的家庭数量以及牙科护理支出的增加，人们对于确定成本分担对被保险人牙科需求的影响的兴趣也在增加。我们利用1980年宾夕法尼亚蓝盾保险公司儿童被保险人的代表性样本，估计了成本分担对基本牙科护理（诊断、预防、修复、牙髓病和拔牙服务）和正畸护理需求的影响。结果表明，成本分担对使用任何牙科服务的可能性和基本支出影响不大。然而，当父母支付的正畸支出比例增加10%时，使用正畸服务的可能性会降低2.1%。通过降低护理成本，成本分担减少了未参保人群中常见的牙科需求方面的社会阶层差异，可能会产生公共口腔健康效益。
