Cost minimization analysis of a long-term randomized clinical trial of patients treated with immediately loaded implant-supported fixed prosthesis

Abstract

Purpose

To document the long-term costs from a randomized controlled clinical trial (RCT) on edentulous patients treated with mandibular 4-implant-supported fixed prosthesis and two loading protocols.

Methods

Taking the perspective of the individual patient, costs associated with treatment, complications, and patients' time from 18 patients who received an immediate-loading protocol and 21 patients treated with a conventional loading protocol were compared over 10 years of observation. All costs are in Canadian dollars and discounted to the RCT base year of 2006 at a rate of 1.5%.

Results

The complication rate in both arms was similar and relatively low. No statistically significant difference was observed in the total cost and discounted total cost, along with its five comprising parameters between the two arms.

Conclusions

Over the 10-year time frame, the immediate loading of dental implants with mandibular fixed prosthesis proved to cost similar to the conventional loading protocol, underscoring the feasibility and reliability of this protocol from the patient's perspective. (REB protocol reference # 33395).

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