Cost-effectiveness analysis of two attachment systems for mandibular overdenture

Contains fulltext : 225314.pdf (Publisher’s version ) (Open Access) OBJECTIVES: This study analysed the cost-effectiveness of two different attachments for the 2-implant overdenture (2IOD) in edentulous mandibles. MATERIALS AND METHODS: When considering alternative treatments, cost-effectiveness analysis is an important factor for stakeholders (patient, clinician, social security, insurance company, etc.). A general practice population (n = 116) was treated between 2003 and 2013 with a mandibular 2IOD with 2 different ball/stud attachment systems, one spherical (Group D) and one cylindrical (Group L). Patient well-being was assessed with OHIP-14-Total (OHIP-14-T), at intake and annually up to 5 years, to calculate the health effect. Initial and maintenance costs of both treatments were inventoried. The cost-effectiveness was compared. Annual discount rates of 4% and 1.5% were applied to future costs and health outcomes, following Dutch guidelines. Prices were adjusted to the year 2003. To offset the uncertainty in relevant input parameters, a sensitivity analysis was performed using bootstrap analysis. Significance was set at p