Implant loss and crestal bone loss in immediate versus delayed load in edentulous mandibles: A systematic review and meta-analysis |
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Authors: | Beatriz Pardal-Peláez Javier Flores-Fraile José Luis Pardal-Refoyo Javier Montero |
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Institution: | 1. Associate Professor, Department of Surgery, Faculty of Medicine, Dental Clinic, University of Salamanca, Salamanca, Spain;2. Associate Professor, Department of Surgery, Faculty of Medicine, Dental Clinic, University of Salamanca, Salamanca, Spain;3. Honorary Collaborating Professor, Faculty of Medicine, IBSAL (Salamanca Biomedical Research Institute) Member, University Assistance Complex of Salamanca, Salamanca, Spain;4. Lecturer of Stomatological Prosthesis, Faculty of Medicine, Dental Clinic, University of Salamanca, Salamanca, Spain |
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Abstract: | Statement of problemThe current trend is to shorten the loading times of dental implants. However, information about the risk of early loss of implants that have been loaded immediately is scant if compared with data available for those conventionally loaded.PurposeThe purpose of this systematic review and meta-analysis was to study immediate (IL) and delayed loading (DL) protocols in edentulous mandibles to determine whether differences exist in implant success and crestal bone loss and to evaluate these possible differences in relation to the type of prosthesis and the splinting of the implants.Material and methodsThe literature review was conducted in PubMed, Scopus, and the Cochrane Library. Nine randomized clinical trials were included.ResultsThe result of a meta-analysis of implant loss before 1 year was 2.63 (95% CI: 1.22, 5.68), favoring the DL control group, while the outcome for crestal bone loss at the observation year was 0.42 (95% CI: -0.35, 1.20), with a tendency toward reduced bone loss for DL.ConclusionsThe risk of early loss in the IL group was higher than that in the DL group. For removable prostheses and nonsplinted implants, DL was preferred. The quality of scientific evidence significantly favors DL. |
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