Heydecke G, Penrod J R, Takanashi Y, Lund J P, Feine J S, Thomason J M
Faculty of Dentistry, McGill University, 3640 University Street, M73, Montreal, Quebec H3A 2B2, Canada.
J Dent Res. 2005 Sep;84(9):794-9. doi: 10.1177/154405910508400903.
Implementation of new therapies is usually governed by financial considerations, so efficacy studies should also include cost comparisons. The cost and effectiveness of mandibular conventional dentures (CD, n = 30) and two-implant overdentures (IOD, n = 30) were compared in elderly subjects. Effectiveness (Oral Health Impact Profile, OHIP-20) and cost were measured up to one year post-treatment. Data for subsequent years were estimated by the Delphi method. Using an average life expectancy of 17.9 years, the equalized annual costs (in Canadian dollars) were dollar 399 for CD and dollar 625 for IOD (p < 0.001), and the equalized annual values for the outcome (OHIP-20) were 47.0 for CD and 31.3 for IOD treatment (p < 0.05). These values translate into a yearly additional cost for IOD treatment of dollar 14.41 per OHIP-20 point. These results are key to the implementation of programs to provide this form of therapy for edentulous adults.
新疗法的实施通常受经济因素的制约，因此疗效研究也应包括成本比较。对老年受试者下颌传统义齿（CD，n = 30）和双种植体覆盖义齿（IOD，n = 30）的成本和效果进行了比较。在治疗后长达一年的时间里测量效果（口腔健康影响程度量表，OHIP - 20）和成本。后续年份的数据通过德尔菲法进行估算。采用平均预期寿命17.9年，CD的均等年度成本（以加元计）为399加元，IOD为625加元（p < 0.001），治疗结果（OHIP - 20）的均等年度值，CD为47.0，IOD治疗为31.3（p < 0.05）。这些数值转化为IOD治疗每降低一个OHIP - 20分值每年需额外花费14.41加元。这些结果对于为无牙颌成年人提供这种治疗形式的项目实施至关重要。
