{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,26]],"date-time":"2026-03-26T01:26:35Z","timestamp":1774488395996,"version":"3.50.1"},"reference-count":40,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2025,1,23]],"date-time":"2025-01-23T00:00:00Z","timestamp":1737590400000},"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":["Int J Paed Dentistry"],"published-print":{"date-parts":[[2025,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>The growing demand for esthetic restorative materials highlights the need to evaluate their marginal accuracy and fracture resistance to ensure optimal clinical outcomes for primary molars.<\/jats:p><\/jats:sec><jats:sec><jats:title>Aim<\/jats:title><jats:p>The aim was to assess the vertical marginal gap distance and fracture resistance of esthetic restorative materials after cyclic loading.<\/jats:p><\/jats:sec><jats:sec><jats:title>Design<\/jats:title><jats:p>Forty extracted primary molars were randomly divided into four groups: Group I, stainless steel veneered crowns with tooth\u2010colored material; Group II, prefabricated monolithic zirconia crowns; Group III, yttria\u2010partially stabilized zirconia computer\u2010aided design\/computer\u2010aided manufacturing (CAD\/CAM) crowns; and Group IV, hybrid ceramic CAD\/CAM crowns. A stereomicroscope was used to measure the vertical marginal gap distance. The fracture resistance was then evaluated by applying cyclic loading.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Group I (1710\u2009\u03bcm) exhibited the highest total median vertical marginal gap distance, followed by Groups II, III, and IV (418.3, 341.7, and 86.7\u2009\u03bcm, respectively; with an overall statistically significant difference, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001). Regarding fracture resistance, Group III exhibited the best performance (2018.5\u2009\u00b1\u2009236.0\u2009N), followed by Groups II, IV, and I (1185.4\u2009\u00b1\u2009326.1, 782.8\u2009\u00b1\u2009278.5, and 728.3\u2009\u00b1\u2009247.4\u2009N, respectively). The CAD\/CAM crowns exhibited better marginal gap distances than the prefabricated crowns. The CAD\/CAM hybrid ceramic crowns exhibited better marginal accuracy than the CAD\/CAM zirconia crowns.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Zirconia crowns showed promising results regarding marginal adaptation, whereas hybrid ceramics showed promising results regarding fracture resistance.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ipd.13294","type":"journal-article","created":{"date-parts":[[2025,1,24]],"date-time":"2025-01-24T06:05:14Z","timestamp":1737698714000},"page":"829-838","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Marginal Gap Distance and Dynamic Fatigue Performance of Esthetic Crowns for Primary Teeth"],"prefix":"10.1111","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3593-3025","authenticated-orcid":false,"given":"Heba M.","family":"Elkhodary","sequence":"first","affiliation":[{"name":"Pediatric Dentistry Department, Faculty of Dentistry King Abdulaziz University  Jeddah Saudi Arabia"},{"name":"Department of Pedodontics and Oral Health Faculty of Dental Medicine for Girls, Al Azhar University  Cairo Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Najat M.","family":"Farsi","sequence":"additional","affiliation":[{"name":"Pediatric Dentistry Department, Faculty of Dentistry King Abdulaziz University  Jeddah Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shereen M.","family":"Abdelmeguid","sequence":"additional","affiliation":[{"name":"Fixed Prosthodontics Department, Faculty of Dentistry Cairo University  Cairo Egypt"},{"name":"Fixed Prosthodontics Division, Oral and Maxillofacial Department, Faculty of Dentistry Umm Al\u2010Qura University  Mecca Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1040-0481","authenticated-orcid":false,"given":"Khaled A.","family":"Elbanna","sequence":"additional","affiliation":[{"name":"Fixed Prosthodontics Division, Oral and Maxillofacial Department, Faculty of Dentistry Umm Al\u2010Qura University  Mecca Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8381-7398","authenticated-orcid":false,"given":"Maha R.","family":"Alshehri","sequence":"additional","affiliation":[{"name":"Pediatric Dentistry Department, Faculty of Dentistry King Abdulaziz University  Jeddah Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0148-1881","authenticated-orcid":false,"given":"Mariam B.","family":"Aldajani","sequence":"additional","affiliation":[{"name":"Pediatric Dentistry Department, Faculty of Dentistry King Abdulaziz University  Jeddah Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7361-9221","authenticated-orcid":false,"given":"Ghalia Y.","family":"Bhadila","sequence":"additional","affiliation":[{"name":"Pediatric Dentistry Department, Faculty of Dentistry King Abdulaziz University  Jeddah Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,1,23]]},"reference":[{"key":"e_1_2_10_2_1","first-page":"63","article-title":"Parental Attitudes on Restorative Materials as Factors Influencing Current Use in Pediatric Dentistry","volume":"31","author":"Zimmerman J. 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