Comparison between immediate and delayed post space preparations: a systematic review and meta-analysis

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dc.creatorFrancine Benetti
dc.creatorAlexandre Henrique dos Reis Prado
dc.creatorAna Cecília Diniz Viana
dc.creatorIsabella Faria da Cunha Peixoto
dc.creatorWarley Luciano Fonseca Tavares
dc.creatorLucas Guimarães Abreu
dc.creatorElen Marise Castro de Oliveira
dc.creatorJuliana Vilela Bastos
dc.creatorAntônio Paulino Ribeiro Sobrinho
dc.date.accessioned2023-05-17T19:47:24Z
dc.date.accessioned2025-09-08T23:40:54Z
dc.date.available2023-05-17T19:47:24Z
dc.date.issued2021-01-08
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.1007/s00784-020-03690-x
dc.identifier.issn14363771
dc.identifier.urihttps://hdl.handle.net/1843/53512
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofClinical Oral Investigations
dc.rightsAcesso Restrito
dc.subjectSystematic review
dc.subjectRoot canal obturation
dc.subjectEndodontics
dc.subjectDental leakage
dc.subjectMeta-analysis
dc.subjectProsthodontics
dc.titleComparison between immediate and delayed post space preparations: a systematic review and meta-analysis
dc.typeArtigo de periódico
local.citation.epage440
local.citation.issue2
local.citation.spage417
local.citation.volume25
local.description.resumoObjectives: This systematic review and meta-analysis compared the effects of immediate and delayed post space preparation on apical sealing. Materials and method: Two independent authors conducted a systematic search (PubMed/Medline, Cochrane Library, and other databases, until February 2020) and a risk of bias evaluation. Only in vitro studies that compared the effects of immediate and delayed post space preparations on apical filling and adhesion of the post were eligible. Result: Of the 742 articles retrieved, 32 were included. Most of the studies used single-rooted human teeth and rotary files for root canal preparation, a single-cone technique for the filling protocol, and rotary instruments for post space preparation. Various delayed preparation times were evaluated: 8-72 h, 5-30 days (mainly 7 days), and 4 months. In nine studies, the delayed groups showed more apical leakage, while four studies reported more leakage in the immediate groups; ten studies found no significant difference. One study found more bacterial penetration in the delayed group, whereas three studies showed no significant difference. One study reported more voids in the delayed group, while another found no such difference. Three studies showed better post-bond strength in the delayed group, one in the immediate group, whereas three found no significant difference in post-bond strength. Three studies employing varied sealers for root canal fillings were considered for meta-analysis. Two subgroup analyses were also performed (one concerning the use of resin-based sealers (AH Plus), another for zinc oxide-eugenol-based sealers). The results of the meta-analysis showed that a delayed post space preparation led to a significantly higher apical leakage than an immediate preparation (mean difference = 0.41 mm, confidence interval = 0.24-0.59, p < 0.001). Conclusion: Delayed post space preparation seems to negatively influence apical sealing; however, further studies are needed to determine the influence of the timing of post space preparation on the other parameters. Clinical relevance: Immediate post space preparation may be the safest clinical choice to prevent apical leakage
local.publisher.countryBrasil
local.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORA
local.publisher.departmentFAO - DEPARTAMENTO DE ODONTOPEDIATRIA E ORTODONTIA
local.publisher.initialsUFMG
local.url.externahttps://link.springer.com/article/10.1007/s00784-020-03690-x

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