{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T00:08:11Z","timestamp":1777334891448,"version":"3.51.4"},"reference-count":32,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2018,11,8]],"date-time":"2018-11-08T00:00:00Z","timestamp":1541635200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The purpose of the present study was to assess the proper time to perform a restoration (immediately or delayed) after placement of two calcium silicate-based cements (CSCs) and to test the performance of two different restorative protocols regarding shear bond strength (SBS). Seventy-five acrylic blocks were randomly divided into five groups (n = 15). Specimens were filled with either ProRoot MTA (Dentsply Tulsa Dental) or Biodentine (Septodont). The restoration was performed at an immediate (12 min) or delayed (seven days) timeframe, using a resin-based flowable composite (SDR) (bonded to the CSC using a universal bonding system) or glass ionomer cement (GIC) as restorative materials. SBS was measured using a universal testing machine. Fractured surfaces were evaluated, and the pattern was registered. Statistical analysis was performed using the Dunn\u2013Sidak post hoc test (P &lt; 0.05). Biodentine\/immediate SDR showed the highest mean SBS value (4.44 MPa), with statistically significant differences when compared to mineral trioxide aggregate (MTA)\/GIC (1.14 MPa) and MTA\/immediate SDR (1.33 MPa). MTA\/GIC and MTA\/immediate SDR did not present significant differences regarding SBS. No statistical differences were verified concerning mean SBS between both CSCs within the 7 day groups. MTA\/delayed SDR (3.86 MPa) presented statistical differences compared to MTA\/immediate SDR, whereas no differences were observed regarding Biodentine performance (Biodentine\/immediate SDR and Biodentine\/delayed SDR (3.09 MPa)). Bonding procedures directly on top of MTA might be preferably performed at a delayed timeframe, whereas Biodentine might allow for immediate restoration.<\/jats:p>","DOI":"10.3390\/ma11112216","type":"journal-article","created":{"date-parts":[[2018,11,9]],"date-time":"2018-11-09T03:08:02Z","timestamp":1541732882000},"page":"2216","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":61,"title":["Does Delayed Restoration Improve Shear Bond Strength of Different Restorative Protocols to Calcium Silicate-Based Cements?"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4730-8072","authenticated-orcid":false,"given":"Paulo J.","family":"Palma","sequence":"first","affiliation":[{"name":"Department of Dentistry, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5210-6155","authenticated-orcid":false,"given":"Joana A.","family":"Marques","sequence":"additional","affiliation":[{"name":"Department of Dentistry, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7099-8871","authenticated-orcid":false,"given":"Rui I.","family":"Falacho","sequence":"additional","affiliation":[{"name":"Department of Dentistry, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal"}]},{"given":"Alexandra","family":"Vinagre","sequence":"additional","affiliation":[{"name":"Department of Dentistry, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2865-9689","authenticated-orcid":false,"given":"Jo\u00e3o Miguel","family":"Santos","sequence":"additional","affiliation":[{"name":"Department of Dentistry, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1965-1092","authenticated-orcid":false,"given":"Jo\u00e3o Carlos","family":"Ramos","sequence":"additional","affiliation":[{"name":"Department of Dentistry, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2018,11,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1691","DOI":"10.1016\/j.joen.2015.06.013","article-title":"Shear Bond Strength of a Self-Adhering Flowable Composite and a Flowable Base Composite to Mineral Trioxide Aggregate, Calcium-Enriched Mixture Cement, and Biodentine","volume":"41","author":"Altunsoy","year":"2015","journal-title":"J. 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