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Comparison of clinical outcomes of immediate versus delayed placement of dental implants: A systematic review and meta-analysis

Garcia-Sanchez, Ruben; Dopico, Jose; Kalemaj, Zamira; Buti, Jacopo; Pardo Zamora, Guillermo; Mardas, Nikos; (2022) Comparison of clinical outcomes of immediate versus delayed placement of dental implants: A systematic review and meta-analysis. Clinical Oral Implants Research , 33 (3) pp. 231-277. 10.1111/clr.13892. Green open access

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Abstract

OBJECTIVE: Two focused questions were addressed. Focused question (Q1) 1) Are there any differences between immediate and delayed placement in terms of (i) survival rate (ii) success rate (iii) radiographic marginal bone levels (iv) height/(v)thickness of buccal wall, (vi) peri-implant mucosal margin position (vii) aesthetics outcomes and (viii) patient reported outcomes?. Focused question 2 (Q2) What is the estimated effect size of immediate implant placement for all parameters included in Q1?. MATERIALS AND METHODS: An electronic search (MEDLINE, EMBASE, The Cochrane Central Register of Controlled Trials and OpenGray) and hand-search was conducted up to November 2019. Randomised controlled trials (RCT) with delayed implant placement as controls were eligible in the analysis for Q1. Immediate dental implant arms RCTs, controlled clinical trials (CCTs) and prospective case series of immediate implant placement were eligible in the analysis for Q2. RESULTS: Six papers (RCTs) were included in the analysis for Q1 and 53 papers (22 RCTs, 11 CCTs and 20 case series) for Q2. Q1: Meta-analyses did not show any significant difference in implant survival, but it did for bone levels and PES scores at 1-year-post loading, favouring the immediate group. Q2: Meta-analyses showed that immediate implants had a high survival rate (97%) and presented high PES scores (range 10.36 to 11.25). Information regarding marginal bone loss and gingival/papillary recession varied among all included studies. CONCLUSION: Similar survival rate was found between immediate and delayed implants. Immediate implants presented threefold early complications and twofold delayed complications. Success criteria should be reported more consistently, and the incidence/type of complications associated with immediate implants should be further explored.

Type: Article
Title: Comparison of clinical outcomes of immediate versus delayed placement of dental implants: A systematic review and meta-analysis
Location: Denmark
Open access status: An open access version is available from UCL Discovery
DOI: 10.1111/clr.13892
Publisher version: https://doi.org/10.1111/clr.13892
Language: English
Additional information: Copyright © 2022 The Authors. Clinical Oral Implants Research published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
Keywords: Bone implant interaction, Imaging, patient centered outcomes Radiology, soft tissue-implant interactions, surgical techniques, wound healing
UCL classification: UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Eastman Dental Institute > Restorative Dental Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Eastman Dental Institute
URI: https://discovery.ucl.ac.uk/id/eprint/10142807
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