{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T18:03:54Z","timestamp":1788545034678,"version":"build-2803163510"},"reference-count":39,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2021,8,30]],"date-time":"2021-08-30T00:00:00Z","timestamp":1630281600000},"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":[[2022,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To evaluate the fracture resistance and fracture patterns of single implant\u2010supported crowns with different prosthetic designs and materials.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>One hundred and forty\u2010four identical crowns were fabricated from zirconia\u2010reinforced lithium silicate (ZLS), leucite\u2010based (LGC), and lithium disilicate (LDS) glass\u2010ceramics, reinforced composite (RC), translucent zirconia (ZR), and ceramic\u2010reinforced polyetheretherketone (P). These crowns were divided into 3 subgroups according to restoration design: cementable crowns on a prefabricated titanium abutment, cement\u2010retained crown on a zirconia\u2010titanium base abutment, and screw\u2010cement crown (n = 8). After adhesive cementation, restorations were subjected to thermal\u2010cycling and loaded until fracture. The fracture patterns were evaluated under a stereomicroscope. Statistical analysis was performed by using 2\u2010way ANOVA\/Bonferroni multiple comparison post hoc test (\u03b1 = 0.05).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      For each prosthetic design, ZR presented the highest fracture resistance (\n                      <jats:italic>p<\/jats:italic>\n                      \u2264 0.005). Other than the differences with ZLS and RC for screw\u2010cement crowns (\n                      <jats:italic>p<\/jats:italic>\n                      &gt; 0.05) and RC for crowns on zirconia\u2010titanium base abutments (\n                      <jats:italic>p &gt;<\/jats:italic>\n                      0.05), LGC showed the lowest fracture resistance. P endured higher loads than LDS (\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.001), except for the crowns on zirconia\u2010titanium base abutments (\n                      <jats:italic>p<\/jats:italic>\n                      &gt; 0.05). Cementable crowns presented the highest fracture resistance (\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.001), other than LGC and LDS. The differences between LGC crowns (\n                      <jats:italic>p<\/jats:italic>\n                      &gt; 0.05) or LDS crowns on prefabricated titanium and zirconia\u2010titanium abutments were nonsignificant (\n                      <jats:italic>p<\/jats:italic>\n                      = 0.133). Fragmented crown fracture was predominant in most of the restorations. Screw and abutment fractures were observed in ZR screw\u2010cement crowns, and all P crowns were separated from the abutments.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Restorative material and restoration design affect the fracture resistance and fracture pattern of implant\u2010supported single\u2010unit restorations. Clinicians may restore single\u2010unit implants in premolar sites with the materials and prosthetic designs tested in the present study.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jopr.13415","type":"journal-article","created":{"date-parts":[[2021,8,12]],"date-time":"2021-08-12T12:10:18Z","timestamp":1628770218000},"page":"348-355","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Fracture Resistance of Single\u2010Unit Implant\u2010Supported Crowns: Effects of Prosthetic Design and Restorative Material"],"prefix":"10.1111","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3094-7487","authenticated-orcid":false,"given":"Mustafa Borga","family":"Donmez","sequence":"first","affiliation":[{"name":"Biruni University, Faculty of Dentistry Department of Prosthodontics  Istanbul 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