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Patient‐reported outcome and its association with attachment type and bone volume in mandibular implant overdenture
Author(s) -
Khalid Taimur,
Yunus Norsiah,
Ibrahim Norliza,
Elkezza Aeman,
Masood Mohd
Publication year - 2017
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/clr.12831
Subject(s) - medicine , cone beam computed tomography , dentistry , implant , wilcoxon signed rank test , dentures , mandible (arthropod mouthpart) , orthodontics , computed tomography , surgery , mann–whitney u test , botany , biology , genus
Abstract Objective To determine oral health‐related quality of life ( OHRQoL ) and denture satisfaction ( DS ) in patients provided with mandibular implant‐supported overdentures ( ISOD ) retained by two different attachment types, and the association of mandibular bone volume with the change in patient‐reported outcome, before and after implant treatment. Material and methods Thirty‐four patients (mean age 60.70 ± 8.7 years) received telescopic crown or locator attachments for ISOD and completed OHIP ‐14 (Malaysian version) and DS questionnaires, at baseline (T 0 ) with new conventional complete dentures ( CCD ) and 3 months (T 1 ) and 3 years (T 2 ) after ISOD conversion. Mandibular bone volume was calculated from cone beam computed tomography ( CBCT ) datasets using Mimics software. Mean changes ( MC ) in OHIP ‐14 and DS at intervals were analyzed using the Wilcoxon signed‐rank test and effect size ( ES ). The association of bone volume, implant attachment type, and other patient variables with the change in OHIP ‐14 and DS were determined using multivariate linear regression analysis. Results The MC in OHIP ‐14 and DS scores from T 0 to T 1 and T 2 showed significant improvement with moderate and large ES , respectively. Regression analyses for the change in OHIP ‐14 score from T 0 to T 2 showed significant association with implant attachment type ( P = 0.043), bone volume ( P = 0.004), and baseline OHIP ‐14 ( P = 0.001), while for DS , the association was only significant with baseline DS score ( P = 0.001). Conclusion Improvement in patients' OHRQoL and satisfaction with ISOD was associated with their baseline ratings. Mandibular bone volume had a stronger association for improvement in OHRQoL compared to type of attachment.