{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,2]],"date-time":"2026-04-02T01:01:29Z","timestamp":1775091689424,"version":"3.50.1"},"reference-count":28,"publisher":"Operative Dentistry","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:title>SUMMARY<\/jats:title>\n        <jats:sec>\n          <jats:title>Objective<\/jats:title>\n          <jats:p>The aim of this investigation was to compare the fracture resistance of chairside computer-aided design and computer-aided manufacturing (CAD\/CAM) lithium disilicate\u2013reinforced ceramic occlusal veneers with and without margin and traditional full coverage premolar crowns.<\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title>Methods and Materials<\/jats:title>\n          <jats:p>A total of 60 chairside CAD\/CAM lithium disilicate\u2013reinforced ceramic (Amber Mill, Hass Bio) restorations were designed and fabricated with a chairside CAD\/CAM system (CEREC Dentsply Sirona). The restorations were divided into three groups (n=20): 1) occlusal veneer with 1.0-mm uniform occlusal thickness and with chamfer margin; 2) occlusal veneer with 1.0-mm uniform occlusal thickness and without margin; and 3) full coverage crown with uniform occlusal thickness and gingival margin. Occlusal veneers and crowns were cemented with dual cured resin luting cement (Multilink, Ivoclar Vivadent) to printed resin dies, load cycled (5 million load cycles at 1 Hz with 275 N force), and then loaded until fracture. Load at break (LB) and peak load (PL) until fracture were recorded. Scanning electron microscope images of the tested restorations on the abutments were obtained.<\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title>Results<\/jats:title>\n          <jats:p>Fracture strengths were different depending on the design of the restoration. There was no significant difference in fracture strength between the two types of occlusal veneer (LB: 1132.45 N; PL: 1143.30 N for veneers with margin; LB: 1149.25 N; PL: 1219.05 N for veneers without margin). Full coverage crowns showed the lowest fracture resistance (LB: 936.26 N, PL: 976.42 N), which was significantly lower than both designs of occlusal veneer.<\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title>Conclusions<\/jats:title>\n          <jats:p>The fracture resistance of the CAD\/CAM lithium disilicate\u2013reinforced ceramic restorations was influenced by the design. Occlusal veneers with and without margin displayed higher fracture resistance than traditional crowns.<\/jats:p>\n        <\/jats:sec>","DOI":"10.2341\/23-043-l","type":"journal-article","created":{"date-parts":[[2023,12,7]],"date-time":"2023-12-07T00:32:07Z","timestamp":1701909127000},"page":"84-90","source":"Crossref","is-referenced-by-count":4,"title":["Fracture Resistance of Chairside CAD\/CAM Lithium Disilicate\u2013reinforced Ceramic Occlusal Veneers With and Without Margin and Full Coverage Crowns"],"prefix":"10.2341","volume":"49","author":[{"given":"CA","family":"Jurado","sequence":"first","affiliation":[{"name":"Carlos Alberto Jurado, DDS, MS, clinical associate professor, University of Iowa College of Dentistry and Dental Clinics, Iowa City, IA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D","family":"Lee","sequence":"additional","affiliation":[{"name":"Damian Lee, DDS, MS, associate professor and chair, Department of Prosthodontics, Tufts University School of Dental Medicine, Boston, MA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P","family":"Ramirez","sequence":"additional","affiliation":[{"name":"Paulette Ramirez, BS, dental student, Texas Tech University Health Sciences Center El Paso, Woody L. Hunt School of Dental Medicine, El Paso, TX, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"DA","family":"Cortes-Trevi\u00f1o","sequence":"additional","affiliation":[{"name":"Daniel Alberto Cortes-Trevi\u00f1o, DDS, MS, private practice, Dallas, TX, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A","family":"Tsujimoto","sequence":"additional","affiliation":[{"name":"*Akimasa Tsujimoto, DDS, PhD, professor and chair, Department of Operative Dentistry, Aichi Gakuin University School of Dentistry, Nagoya, Aichi, Japan; adjunct associate professor, Department of Operative Dentistry, University of Iowa College of Dentistry, Iowa City, Iowa, USA; visiting associate professor, Department of General Dentistry, Creighton University School of Dentistry, Omaha, NE, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1188","reference":[{"issue":"2","key":"b1","series-title":"Dental Clinics of North America","first-page":"405","article-title":"All-ceramic, chair-side computer-aided design\/computer-aided machining restorations","volume":"46","author":"M\u00f6rmann\n              WH","year":"2002","unstructured":"M\u00f6rmann\n              WH\n             & BindlA (2002) All-ceramic, chair-side computer-aided design\/computer-aided machining restorationsDental Clinics of North America46(2) 405-426."},{"issue":"7","key":"b2","series-title":"Clinical Oral Investigations","first-page":"1759","article-title":"Accuracy of digital and conventional impression techniques and workflow","volume":"17","author":"Seelbach\n              P","year":"2013","unstructured":"Seelbach\n              P\n            , BrueckelC, & W\u00f6stmannB (2013) Accuracy of digital and conventional impression techniques and workflowClinical Oral Investigations17(7) 1759-1764."},{"issue":"3","key":"b3","series-title":"Dental Materials Journal","first-page":"422","article-title":"Marginal and internal fit of all-ceramic crowns fabricated with two different CAD\/CAM systems","volume":"27","author":"Lee\n              KB","year":"2008","unstructured":"Lee\n              KB\n            , ParkCW, KimKH, & KwonTY (2008) Marginal and internal fit of all-ceramic crowns fabricated with two different CAD\/CAM systemsDental Materials Journal27(3) 422-426."},{"issue":"December","key":"b4","series-title":"Journal of Dentistry","first-page":"40","article-title":"National Dental PBRN Collaborative Group. 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Prosthodontics36(1) 42-48."},{"issue":"4","key":"b9","series-title":"Journal of Prosthetic Dentistry","first-page":"217","article-title":"Novel-design ultra-thin CAD\/CAM composite resin and ceramic occlusal veneers for the treatment of severe dental erosion","volume":"105","author":"Schlichting\n              LH","year":"2011","unstructured":"Schlichting\n              LH\n            , MaiaHP, BaratieriLN, & MagneP (2011) Novel-design ultra-thin CAD\/CAM composite resin and ceramic occlusal veneers for the treatment of severe dental erosionJournal of Prosthetic Dentistry105(4) 217-226."},{"issue":"2","key":"b10","series-title":"Clinical Oral Investigations","first-page":"841","article-title":"Lithium disilicate posterior overlays: Clinical and biomechanical features","volume":"24","author":"Luciano\n              M","year":"2020","unstructured":"Luciano\n              M\n            , FrancescaZ, MichelaS, TommasoM, & MassimoA (2020) Lithium disilicate posterior overlays: Clinical 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compressive cyclic loading on retention of a temporary cement used with implantsJournal of Oral Implantology31(3) 115-120."},{"issue":"4","key":"b13","series-title":"European Journal of Oral Science","first-page":"316","article-title":"Shear fatigue strength of resin composite bonded to dentin at physiological frequency","volume":"126","author":"Tsujimoto\n              A","year":"2018","unstructured":"Tsujimoto\n              A\n            , BarkmeierWW, EricksonRL, FischerNG, MarkhamMD, TakamizawaT, LattaMA, & MiyazakiM (2018) Shear fatigue strength of resin composite bonded to dentin at physiological frequencyEuropean Journal of Oral Science126(4) 316-325."},{"issue":"3","key":"b14","series-title":"International Journal of Prosthodontics","first-page":"283","article-title":"Survival rates of lithium disilicate single restorations: A retrospective study","volume":"31","author":"Mobilio\n              N","year":"2018","unstructured":"Mobilio\n              N\n            , FasiolA, & CatapanoS (2018) Survival rates of lithium disilicate single restorations: A retrospective studyInternational Journal of Prosthodontics31(3) 283-286."},{"issue":"4","key":"b15","series-title":"Journal of Contemporary Dental Practice","first-page":"534","article-title":"Assessment of maximum voluntary bite force in adults with normal occlusion and different types of malocclusions","volume":"13","author":"Sathyanarayana\n              HP","year":"2012","unstructured":"Sathyanarayana\n              HP\n            , PremkumarS, & ManjulaWS (2012) Assessment of maximum voluntary bite force in adults with normal occlusion and different types of malocclusionsJournal of Contemporary Dental Practice13(4) 534-538."},{"issue":"10","key":"b16","series-title":"Journal of Biomedical Optics","first-page":"1","article-title":"Bite force measurement based on fiber Bragg grating sensor","volume":"22","author":"Padma\n              S","year":"2017","unstructured":"Padma\n              S\n            , UmeshS, AsokanS, & SrinivasT (2017) Bite force measurement based on fiber Bragg grating sensorJournal of Biomedical Optics22(10) 1-6."},{"issue":"4","key":"b17","series-title":"European Journal of Orthodontics","first-page":"427","article-title":"Maximum voluntary molar bite force in subjects with normal occlusion","volume":"33","author":"Varga\n              S","unstructured":"Varga\n              S\n            , SpaljS, Lapter VargaM, Anic MilosevicS, MestrovicS, & SlajM. Maximum voluntary molar bite force in subjects with normal occlusionEuropean Journal of Orthodontics33(4) 427-433."},{"issue":"3","key":"b18","series-title":"Journal of Esthetic and Restorative Dentistry","first-page":"280","article-title":"Influence of preparation designs on marginal adaptation and failure load of full-coverage occlusal veneers after thermomechanical aging simulation","volume":"31","author":"Angerame\n              D","year":"2019","unstructured":"Angerame\n              D\n            , De BiasiM, AgostinettoM, Franz\u00f2A, & MarchesiG (2019) Influence of preparation designs on marginal adaptation and failure load of full-coverage occlusal veneers after thermomechanical aging simulationJournal of Esthetic and Restorative Dentistry31(3) 280-289."},{"issue":"June","key":"b19","series-title":"Journal of Dentistry","first-page":"103346","article-title":"Effect of preparation design on the fracture behavior of ceramic occlusal veneers in maxillary 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dentures","volume":"22","author":"Rosentritt\n              M","year":"2006","unstructured":"Rosentritt\n              M\n            , BehrM, GebhardR, & HandelG (2006) Influence of stress simulation parameters on the fracture strength of all-ceramic fixed-partial denturesDental Materials22(2) 176-182."},{"issue":"2","key":"b22","series-title":"European Journal of Oral Science","first-page":"161","article-title":"Load-bearing capacity of all-ceramic posterior four-unit fixed partial dentures with different zirconia frameworks","volume":"115","author":"Kohorst\n              P","year":"2007","unstructured":"Kohorst\n              P\n            , HerzogTJ, BorchersL, & Stiesch-ScholzM (2007) Load-bearing capacity of all-ceramic posterior four-unit fixed partial dentures with different zirconia frameworksEuropean Journal of Oral Science115(2) 161-166."},{"issue":"9","key":"b23","series-title":"Journal of Prosthodontics","first-page":"997","article-title":"Fracture resistance of various thickness e.max CAD lithium disilicate crowns cemented on different supporting substrates: An in vitro study","volume":"28","author":"Chen\n              SE","year":"2019","unstructured":"Chen\n              SE\n            , ParkAC, WangJ, KnoernschildKL, CampbellS, & YangB (2019) Fracture resistance of various thickness e.max CAD lithium disilicate crowns cemented on different supporting substrates: An in vitro studyJournal of Prosthodontics28(9) 997-1004."},{"issue":"5","key":"b24","series-title":"Dental Materials Journal","first-page":"705","article-title":"CAD\/CAM lithium disilicate ceramic crowns: Effect of occlusal thickness on fracture resistance and fractographic analysis","volume":"41","author":"Jurado\n              CA","year":"2022","unstructured":"Jurado\n              CA\n            , PinedoF, TrevinoDAC, WilliamsQ, Marquez-CondeA, IrieM, & TsujimotoA (2022) CAD\/CAM lithium disilicate ceramic crowns: Effect of occlusal thickness on fracture resistance and fractographic analysisDental Materials Journal41(5) 705-709."},{"issue":"4","key":"b25","series-title":"Dental Materials","first-page":"322","article-title":"Ultimate tensile strength of tooth structures","volume":"20","author":"Giannini\n              M","year":"2004","unstructured":"Giannini\n              M\n            , SoaresCJ, & de CarvalhoRM (2004) Ultimate tensile strength of tooth structuresDental Materials20(4) 322-329."},{"issue":"3","key":"b26","series-title":"Journal of Biomedical Materials Research","first-page":"342","article-title":"Ultimate tensile strength of dentin: Evidence for a damage mechanics approach to dentin failure","volume":"63","author":"Staninec\n              M","year":"2002","unstructured":"Staninec\n              M\n            , MarshallGW, & HiltonJF (2002) Ultimate tensile strength of dentin: Evidence for a damage mechanics approach to dentin failureJournal of Biomedical Materials Research63(3) 342-345."},{"issue":"6","key":"b27","series-title":"Journal of Prosthodontics","first-page":"659","article-title":"Effect of surface treatment and cement on fracture load of traditional zirconia (3Y), translucent zirconia (5Y), and lithium disilicate crowns","volume":"28","author":"Lawson\n              NC","year":"2019","unstructured":"Lawson\n              NC\n            , JuradoCA, HuangCT, MorrisGP, BurgessJO, LiuPR, KinderknechtKE, LinCP, & GivanDA (2019) Effect of surface treatment and cement on fracture load of traditional zirconia (3Y), translucent zirconia (5Y), and lithium disilicate crownsJournal of Prosthodontics28(6) 659-665."},{"issue":"3","key":"b28","series-title":"Journal of Esthetic and Restorative Dentistry","first-page":"534","article-title":"Fracture strength of zirconia and lithium disilicate restorations following endodontic access","volume":"34","author":"Lucas\n              TJ","year":"2022","unstructured":"Lucas\n              TJ\n            , LawsonNC, EnglertB, GoldsteinK, & GoldsteinR (2022) Fracture strength of zirconia and lithium disilicate restorations following endodontic accessJournal of Esthetic and Restorative Dentistry34(3) 534-540."}],"container-title":["Operative 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