{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T01:37:01Z","timestamp":1747186621809,"version":"3.40.5"},"reference-count":45,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2022,8,18]],"date-time":"2022-08-18T00:00:00Z","timestamp":1660780800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Prosthodontics"],"published-print":{"date-parts":[[2023,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>Zirconium dioxide ceramic has been successfully introduced as a framework material for fixed dental prostheses. To reduce manufacturing constraints, joining of subcomponents could be a promising approach to increase the mechanical performance of long\u2010span fixed dental prostheses. In this experimental study, the biomechanical behavior of monolithic and soldered framework specimens for fixed dental prostheses made of Y\u2010TZP was investigated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and methods<\/jats:title><jats:p>Framework specimens (n = 80) of 5\u2010unit fixed dental prostheses made of Y\u2010TZP were prepared and divided into 10 equal groups. The specimens were monolithic or composed of subcomponents, which were joined using a silicate\u2010based glass solder. Thereby, three joint geometries (diagonal, vertical with an occlusal cap, and dental attachment\u2010based) were investigated. Moreover, the groups differed based on the mechanical test (static vs. dynamic) and further processing (veneered vs. unveneered). The framework specimens were cemented on alumina\u2010based jaw models, where the canine and second molar were acting as abutments before a point\u2010load was applied. In addition, \u00b5CT scans and microscopic fractography were used to evaluate the quality of soldered joints and to determine the causes of fracture.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The determined fracture loads of the different unveneered framework specimens in static testing did not vary significantly (<jats:italic>p<\/jats:italic> = 1). Adding a veneering layer significantly increased the mechanical strength for monolithic framework specimens from 1196.29\u00a0\u00b1 203.79\u00a0N to 1606.85\u00a0\u00b1 128.49\u00a0N (<jats:italic>p<\/jats:italic> = 0.008). In case of soldered specimens with a dental attachment\u2010based geometry, the mechanical strength increased from 1159.42\u00a0\u00b1 85.65\u00a0N to 1249.53\u00a0\u00b1 191.55\u00a0N (<jats:italic>p<\/jats:italic> = 1). Within the dynamic testing, no differences were observed between monolithic and soldered framework specimens. \u00b5CT scans and fractography proved that the dental attachment\u2010based joining geometry offers the highest quality.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Using glass soldering technology, subcomponents of 5\u2010unit framework specimens made of Y\u2010TZP could be joined with mechanical properties comparable to those of monolithic frameworks.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jopr.13586","type":"journal-article","created":{"date-parts":[[2022,8,4]],"date-time":"2022-08-04T12:54:06Z","timestamp":1659617646000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Fracture strength of monolithic and glass\u2010soldered ceramic subcomponents of 5\u2010unit fixed dental prosthesis"],"prefix":"10.1111","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4317-6025","authenticated-orcid":false,"given":"Jan\u2010Oliver","family":"Sass","sequence":"first","affiliation":[{"name":"Department of Orthopedics Rostock University Medical Center  Rostock Germany"},{"name":"Department of Operative Dentistry and Periodontology Rostock University Medical Center  Rostock Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ulrike","family":"Burmeister","sequence":"additional","affiliation":[{"name":"Department of Operative Dentistry and Periodontology Rostock University Medical Center  Rostock Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cornelia","family":"Ganz","sequence":"additional","affiliation":[{"name":"ZM Pr\u00e4zisionsdentaltechnik GmbH  Rostock Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aurica","family":"Mitrovic","sequence":"additional","affiliation":[{"name":"ZM 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