{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T20:31:45Z","timestamp":1790627505385,"version":"4.1.0"},"reference-count":62,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2020,12,2]],"date-time":"2020-12-02T00:00:00Z","timestamp":1606867200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Prosthodontics"],"published-print":{"date-parts":[[2021,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To evaluate the survival rate (fatigue resistance), bonding efficiency and marginal integrity of monolithic zirconia partial and full coverage single restorations adhesively bonded to the tooth structure using air\u2010particle abrasion, a primer with 10\u2010methacryloyloxydecyl dihydrogen phosphate and a composite\u2010resin cement (APC) protocol.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>\n                      Extracted human premolars (N = 32) were randomly divided into four groups of eight specimens each. Premolars were prepared for the following restorations: full crown (group 1, control), mesial\u2010occlusal\u2010distal\u2010facial onlay (MODF, group 2) preserving 2 mm facio\u2010lingual functional cusp width, mesial\u2010occlusal\u2010distal\u2010lingual onlay (MODL, group 3) preserving 2 mm facio\u2010lingual nonfunctional cusp width, mesial\u2010occlusal\u2010distal\u2010buccal\u2010lingual onlay (MODBL, group 4), overlay preparation. All restorations were milled from monolithic 3 mol% yttria (3Y) zirconia blocks (ZirCad, A1 LT, Ivoclar Vivadent) with CAD\/CAM software presets at minimum occlusal and axial thicknesses of 1 mm. The intaglio surface of the restorations was air\u2010particle abraded (50 \u00b5m Al\n                      <jats:sub>2<\/jats:sub>\n                      O\n                      <jats:sub>3<\/jats:sub>\n                      , 2\u2010Bar pressure, 15 s, 10 mm distance) and primed. An adhesive cement system was used to bond the restorations. Each group was subjected to thermomechanical loading for 1.2 million cycles (force = 70 N, 1.4 Hz) with simultaneous thermocycling (5\u201055\u00b0C, 30 s dwell time) using a mastication simulator. All specimens were examined under scanning electron microscope (SEM) analysis (30, 100, and 150\u00d7) to evaluate cracks and marginal defects. Fracture of restoration and\/or fracture within tooth structure, and debonding were considered modes of failure.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>One specimen from group 2 debonded at 632,000 cycles. None of the specimens failed due to fracture. SEM analysis at 30\u00d7 indicated marginal integrity issue of the remaining seven intact specimens of group 2 in the area of antagonist contact. No specimens from group 1, 3, and 4 demonstrated marginal integrity issue at 30\u00d7. None of the specimens demonstrated any microcrack at 100\u00d7 and150\u00d7.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Due to its fatigue resistance, 3Y\u2010zirconia is a viable option for partial and full coverage single restorations. Following a strict bonding protocol, zirconia demonstrated durable adhesion to the tooth structure. Occlusal contact on restoration margins should be avoided.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jopr.13287","type":"journal-article","created":{"date-parts":[[2020,11,17]],"date-time":"2020-11-17T07:58:13Z","timestamp":1605599893000},"page":"76-82","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Monolithic Zirconia Partial Coverage Restorations: An In Vitro Mastication Simulation Study"],"prefix":"10.1111","volume":"30","author":[{"given":"Savita","family":"Gupta","sequence":"first","affiliation":[{"name":"Division of Comprehensive Oral Health, Adams School of Dentistry University of North Carolina at Chapel Hill  Chapel Hill NC"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1665-5151","authenticated-orcid":false,"given":"Awab","family":"Abdulmajeed","sequence":"additional","affiliation":[{"name":"Department of General Practice, School of 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