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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/53512
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dc.creatorFrancine Benettipt_BR
dc.creatorAlexandre Henrique dos Reis Pradopt_BR
dc.creatorAna Cecília Diniz Vianapt_BR
dc.creatorIsabella Faria da Cunha Peixotopt_BR
dc.creatorWarley Luciano Fonseca Tavarespt_BR
dc.creatorLucas Guimarães Abreupt_BR
dc.creatorElen Marise Castro de Oliveirapt_BR
dc.creatorJuliana Vilela Bastospt_BR
dc.creatorAntônio Paulino Ribeiro Sobrinhopt_BR
dc.date.accessioned2023-05-17T19:47:24Z-
dc.date.available2023-05-17T19:47:24Z-
dc.date.issued2021-01-08-
dc.citation.volume25pt_BR
dc.citation.issue2pt_BR
dc.citation.spage417pt_BR
dc.citation.epage440pt_BR
dc.identifier.doihttps://doi.org/10.1007/s00784-020-03690-xpt_BR
dc.identifier.issn14363771pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/53512-
dc.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 leakagept_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORApt_BR
dc.publisher.departmentFAO - DEPARTAMENTO DE ODONTOPEDIATRIA E ORTODONTIApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofClinical Oral Investigationspt_BR
dc.rightsAcesso Restritopt_BR
dc.subject.otherSystematic reviewpt_BR
dc.subject.otherRoot canal obturationpt_BR
dc.subject.otherEndodonticspt_BR
dc.subject.otherDental leakagept_BR
dc.subject.otherMeta-analysispt_BR
dc.subject.otherProsthodonticspt_BR
dc.titleComparison between immediate and delayed post space preparations: a systematic review and meta-analysispt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://link.springer.com/article/10.1007/s00784-020-03690-xpt_BR
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