Patient‐reported outcome measures (PROMs) and maintenance events in 2‐implant‐supported mandibular overdenture patients: A 5‐year prospective study

Abstract

OBJECTIVE\nTo prospectively evaluate patient-reported outcome measures (PROMs) and treatment outcomes of mandibular two-implant retained overdentures (IOD) in an edentulous geriatric cohort with history of deficient complete dentures (CD).\n\n\nMATERIALS AND METHODS\nA total of 103 patients with deficient CD received new optimal CD. After a period of 3\xa0months, 80 of the patients voluntarily received IOD. Outcomes collected at pre-, post-CD/post-IOD treatment annually up to 5\xa0years, included (a) Clinical outcomes: denture-quality (Woelfel s index), complications, and maintenance events, (b) PROMs: patient complaints (maxillary, mandibular functional complaint scores, generic aesthetic complaint scores, frequency, and intensity of complaints) and patient satisfaction, and (c) Maintenance events: technical complications and adverse events.\n\n\nRESULTS\nFive-year data were collected from 67 patients (mean age at initiation\xa0=\xa071.3\xa0years, mean observation\xa0=\xa05.9\xa0years) with cumulative implant survival rate\xa0=\xa098.72%. Multiple comparisons for 8 time points showed significant improvements in denture quality and PROMs after new CD and IOD delivery. Further significant improvements were only after IOD delivery in: mandibular denture-quality, mandibular and generic functional complaints, frequency, intensity of complaints, and overall patient satisfaction score. Thereafter, denture-quality and PROMs remained stable. Maintenance events clustered on 1st year and within a minority of patients. Technical complications and overall maintenance events significantly correlated with overall patient satisfaction score at 1st year.\n\n\nCONCLUSIONS\nMandibular IOD was a beneficial treatment option for seniors with history of deficient CD, improving denture-quality, patient satisfaction, and reducing patient complaints up to 5\xa0years. Maintenance events clustered on 1st year, showing no significant impact on long-term patient satisfaction and other PROMs.