{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,31]],"date-time":"2026-03-31T02:03:07Z","timestamp":1774922587171,"version":"3.50.1"},"reference-count":25,"publisher":"FapUNIFESP (SciELO)","license":[{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Braz. Dent. J."],"abstract":"<jats:p>Abstract To evaluate the fracture load of bilayer ceramic crowns manufactured by Rapid Layer Technology (RLT) after different cementation protocols of the veneering ceramic to the zirconia infrastructures. Sixty epoxy resin preparations simulating a molar tooth were obtained and 60 zirconia infrastructures and feldspathic crowns were manufactured by RLT and divided into 6 groups according to the cementation protocol at the interface to veneering ceramic (n=10): Ctr- control: conventional resin cement; Al- Al2O3 sandblasting 50\u00b5m + conventional resin cement; Al\/MDP- Al2O3 sandblasting (50\u00b5m) + resin cement with MDP; Sil- silicatization 30\u00b5m + conventional resin cement; Gl\/HF- glaze + hydrofluoridric acid (5%,60s) + silane + conventional resin cement; Gl- glazing as bonding agent. The feldspathic ceramic internal surface was etched with fluoridric acid (5%) + silane followed by cementation according to respective protocols. All samples were mechanically cycled (200N and 4.5x105 Pa, 37\u00b0C, 2x106 cycles, 3.4Hz) and submitted to axial compressing fracture load test (10kN, 0.5mm\/min). The results(N) were submitted to descriptive and analytical statistical analysis with 1-way ANOVA, Weibull, and the Tukey test (\u03b1=0.05). ANOVA revealed that there was a significant difference among the tested groups (p&lt;0.0001). The group Al\/MDP presented the higher resistance to fracture (1972.46A N), followed by the Ctr group (1584.41B N). The characteristic strength(\u03c30) was significantly different (p=0.000). The crack and chipping were the predominant failures. The air-abrasion at the external surface of zirconia with Al2O3 followed by cementation with MDP resin cement, should be selected to Rapid Layer Technique when felspathic ceramic is used as veneer ceramic.<\/jats:p>","DOI":"10.1590\/0103-6440202405917","type":"journal-article","created":{"date-parts":[[2024,9,16]],"date-time":"2024-09-16T11:47:21Z","timestamp":1726487241000},"source":"Crossref","is-referenced-by-count":1,"title":["Effect of cementation protocols on the fracture load of bilayer ceramic crowns manufactured by the Rapid Layer Technology"],"prefix":"10.1590","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9987-088X","authenticated-orcid":false,"given":"Sarah Emille Gomes da","family":"Silva","sequence":"first","affiliation":[{"name":"Federal University of Rio Grande do Norte,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6858-7950","authenticated-orcid":false,"given":"J\u00falia M. Costa","family":"Lima","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-7878-2432","authenticated-orcid":false,"given":"Elen G.","family":"Lima","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0752-6294","authenticated-orcid":false,"given":"Renata M.","family":"Melo","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0077-3161","authenticated-orcid":false,"given":"Marco A.","family":"Bottino","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0856-7178","authenticated-orcid":false,"given":"Rodrigo O. Assun\u00e7\u00e3o e","family":"Souza","sequence":"additional","affiliation":[{"name":"Federal University of Rio Grande do Norte,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","published-online":{"date-parts":[[2024]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1016\/j.jmbbm.2018.05.029","article-title":"Mechanical reliability, fatigue strength and survival analysis of new polycrystalline translucent zirconia ceramics for monolithic restorations","volume":"85","author":"Pereira GKR","year":"2018","journal-title":"J Mech Behav Biomed Mater"},{"key":"ref2","doi-asserted-by":"crossref","first-page":"44","DOI":"10.1590\/0103-6440202104163","article-title":"CAD-FEA modeling and fracture resistance of bilayer zirconia crowns manufactured by the rapid layer technology","volume":"32","author":"Lima JMC","year":"2021","journal-title":"Braz Dent J"},{"issue":"40","key":"ref3","doi-asserted-by":"crossref","DOI":"10.1097\/MD.0000000000017385","article-title":"Clinical evaluation of monolithic zirconia crowns for posterior teeth restorations","volume":"98","author":"Tang Z","year":"2019","journal-title":"Medicine"},{"issue":"13","key":"ref4","article-title":"Fracture Resistance of Monolithic High-Translucency Crowns Versus Porcelain-Veneered Zirconia Crowns After Artificial Aging: An In Vitro Study","volume":"23","author":"Ezzat Y","year":"2021","journal-title":"Cureus"},{"issue":"2","key":"ref5","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1111\/eos.12604","article-title":"In vitro lifetime of zirconium dioxide-based crowns veneered using Rapid Layer Technology Eur","volume":"127","author":"Riedel C","year":"2019","journal-title":"J. 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