Are <7-mm long implants in native bone as effective as longer implants in augmented bone for the rehabilitation of posterior atrophic jaws? A systematic review and meta-analysis.
complications
dental implants
extra-short implants
marginal bone loss
short implants
survival rate
Journal
Clinical implant dentistry and related research
ISSN: 1708-8208
Titre abrégé: Clin Implant Dent Relat Res
Pays: United States
ID NLM: 100888977
Informations de publication
Date de publication:
Oct 2020
Oct 2020
Historique:
received:
17
06
2020
revised:
08
08
2020
accepted:
12
08
2020
pubmed:
10
9
2020
medline:
15
12
2020
entrez:
9
9
2020
Statut:
ppublish
Résumé
To compare clinical and radiographic outcomes of <7 mm short (SH) implants inserted in native bone vs longer (ST) implants placed in vertically augmented partially edentulous posterior jaws. A further aim was to evaluate if the residual bone dimension plays a role in the outcomes of SH and extra-SH implants. This review was registered with PROSPERO. An electronic literature search was performed on PubMed, Scopus and Web of Science. Randomized controlled trials (RCTs) with at least 1-year follow-up, comparing fixed prostheses supported by SH vs ST implants in augmented sites were included. Marginal bone level (MBL) changes, implant survival rate, and complications were evaluated through a meta-analysis. Subgroup analysis was performed dividing the SH implants according to length at each follow-up (1-, 3-, 5-year of function). Twenty-five articles fulfilled the inclusion criteria, featuring a total of 650 SH implants placed in 415 patients and 685 ST implants placed in 403 patients. There was a trend for a significantly lower MBL associated with SH implants respect to ST implants at each follow-up, whilst there was no evidence of a difference in failure rates between SH and ST implants, for any SH length considered and at any follow-up. There was evidence for a lower incidence of complications in favor of SH implants at both 1-year (P < .0001) and 3-year follow-up (P = .01), while at 5-year follow-up there was no evidence of a difference between SH and ST groups (P = .30). SH implants supporting partial fixed rehabilitations represent a valuable alternative to augmentation procedures in the medium term. While the performance of implants at least 5-mm long is well documented, more studies with at least 5-year follow-up are needed to confirm the promising outcomes observed with <5 mm-long fixtures.
Substances chimiques
Dental Implants
0
Types de publication
Journal Article
Meta-Analysis
Systematic Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
552-566Informations de copyright
© 2020 Wiley Periodicals LLC.
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