{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T21:59:48Z","timestamp":1774648788256,"version":"3.50.1"},"reference-count":28,"publisher":"Operative Dentistry","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2014,11,1]]},"abstract":"<jats:title>SUMMARY<\/jats:title>\n               <jats:p>This study evaluated the effect of the core substrate type (dentin and composite resin) on the retention of crowns made of yttrium oxide stabilized tetragonal zirconia polycrystal (Y-TZP), submitted to three inner surface conditionings. For this purpose, 72 freshly extracted molars were embedded in acrylic resin, perpendicular to the long axis, and prepared for full crowns: 36 specimens had crown preparations in dentin; the remaining 36 teeth had the crowns removed, and crown preparations were reconstructed with composite resin plus fiber posts with dimensions identical to the prepared dentin. The preparations were impressed using addition silicone, and 72 Y-TZP copings for the tensile test were produced. Cementation was performed with a dual-cured cement containing phosphate monomers. For cementation, the crown preparation (dentin or resin) was conditioned with the adhesive system, and the ceramic was subjected to one of three surface treatments: isopropyl alcohol, tribochemical silica coating, or thin low-fusing glassy porcelain layer application plus silanization. After 24 hours, all specimens were submitted to thermocycling (6000 cycles) and placed in a special tensile testing device in a universal testing machine to determine failure loads. The failure modes of all samples were analyzed under a stereomicroscope. Two-way analysis of variance showed that the surface treatment and substrate type (\u03b1=0.05) affected the tensile retention results. The dentin substrate presented the highest tensile retention values, regardless of the surface treatment. When the substrate was resin, the tribochemical silica coating and low-fusing glaze application plus silanization groups showed the higher retention values.<\/jats:p>","DOI":"10.2341\/13-281-l","type":"journal-article","created":{"date-parts":[[2014,5,8]],"date-time":"2014-05-08T10:45:39Z","timestamp":1399545939000},"page":"619-626","source":"Crossref","is-referenced-by-count":14,"title":["Evaluation of Tensile Retention of Y-TZP Crowns After Long-term Aging: Effect of the Core Substrate and Crown Surface Conditioning"],"prefix":"10.2341","volume":"39","author":[{"given":"R","family":"Amaral","sequence":"first","affiliation":[{"name":"Regina Amaral, PhD, Sao Paulo State University (UNESP), PhD Graduate Program (Prosthetic Dentistry Unit), S\u00e3o Jos\u00e9 dos Campos, SP, Brazil"}]},{"given":"M","family":"Rippe","sequence":"first","affiliation":[{"name":"Marilia Rippe, PhD, Sao Paulo State University (UNESP), Graduate Program (Prosthetic Dentistry Unit), S\u00e3o Jos\u00e9 dos Campos, SP, Brazil"}]},{"given":"BG","family":"Oliveira","sequence":"first","affiliation":[{"name":"Bruno G Oliveira, DDS (c), Sao Paulo University (USP), Faculty of Dentistry, S\u00e3o Paulo, SP, Brazil"}]},{"given":"PF","family":"Cesar","sequence":"first","affiliation":[{"name":"Paulo Francisco Cesar, PhD, Sao Paulo University (USP), Dental Materials Biomaterials and Oral Biology, S\u00e3o Paulo, SP, Brazil"}]},{"given":"MA","family":"Bottino","sequence":"first","affiliation":[{"name":"Marco Antonio Bottino, PhD, Sao Paulo State University (UNESP), Dental Materials and Prosthodontics, S\u00e3o Jos\u00e9 dos Campos, SP, Brazil"}]},{"given":"LF","family":"Valandro","sequence":"first","affiliation":[{"name":"Luiz Felipe Valandro, PhD, Federal University of Santa Maria, Restorative Dentistry (Prosthodontics), Santa Maria, RS, 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