{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T13:55:38Z","timestamp":1784642138520,"version":"3.55.0"},"reference-count":49,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2025,2,7]],"date-time":"2025-02-07T00:00:00Z","timestamp":1738886400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001807","name":"Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado de S\u00e3o Paulo","doi-asserted-by":"publisher","award":["2021\/13958\u20104"],"award-info":[{"award-number":["2021\/13958\u20104"]}],"id":[{"id":"10.13039\/501100001807","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Prosthodontics"],"published-print":{"date-parts":[[2025,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To compare masticatory function and patient satisfaction with removable partial dentures (RPDs) with cobalt\u2010chromium (Co\u2010Cr) and injected polyetheretherketone (PEEK) frameworks, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Twelve volunteers (7 women, 5 men; mean age, 56.6 years) with complete maxillary edentulism and partial mandibular edentulism (Kennedy Class I) first received new RPDs with PEEK (experimental group) or Co\u2010Cr (control group) frameworks and used them for 2 months. Masticatory performance (MP) was evaluated using sieves and Optocal, with results expressed as the mean particle size (<jats:italic>X<\/jats:italic><jats:sub>50<\/jats:sub>); maximum bite force (MBF) was measured with a force transducer and pressure sensors; and self\u2010reported satisfaction was assessed using a visual analog scale. After the initial evaluation, a 1\u2010week washout period was followed by group crossover and reassessment after an additional 2 months. Data were analyzed using independent\u2010samples <jats:italic>t\u2010<\/jats:italic>tests (\u03b1\u00a0=\u00a05%).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p><jats:italic>X<\/jats:italic><jats:sub>50<\/jats:sub> values were lower for RPDs with Co\u2010Cr frameworks than for those with PEEK frameworks (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.007), indicating better MP. The MBF did not differ significantly between RPD framework types. Participants\u2019 satisfaction, in terms of prosthesis stability (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.02) and chewing ability (<jats:italic>p<\/jats:italic>\u00a0&lt;\u00a00.001), was greater for Co\u2010Cr RPDs. Most participants preferred to continue using Co\u2010Cr frameworks.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>RPDs with injected PEEK frameworks were associated with reduced MP and patient satisfaction relative to Co\u2010Cr frameworks.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jopr.14039","type":"journal-article","created":{"date-parts":[[2025,2,10]],"date-time":"2025-02-10T22:00:58Z","timestamp":1739224858000},"page":"686-694","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Chewing with Co\u2010Cr or PEEK denture frameworks: A randomized crossover clinical study"],"prefix":"10.1111","volume":"34","author":[{"given":"Pedro Henrique Bastos","family":"de Oliveira","sequence":"first","affiliation":[{"name":"Department of Prosthodontics and Periodontology Piracicaba Dental School University of Campinas  Piracicaba Sao Paulo Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guilherme Fantini","family":"Ferreira","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics and Periodontology Piracicaba Dental School University of Campinas  Piracicaba Sao Paulo Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lorena Tavares","family":"Gama","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics and Periodontology Piracicaba Dental School University of Campinas  Piracicaba Sao Paulo Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1549-2621","authenticated-orcid":false,"given":"Talita Malini","family":"Carletti","sequence":"additional","affiliation":[{"name":"38th Infantry Battalion a unit of the Brazilian Army, Vila Velha  Esp\u00edrito Santo Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Renata Cunha Matheus","family":"Rodrigues Garcia","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics and Periodontology Piracicaba Dental School University of Campinas  Piracicaba Sao Paulo Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,2,7]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.11607\/ijp.8278"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.physbeh.2006.01.025"},{"issue":"1","key":"e_1_2_8_4_1","first-page":"1","article-title":"Does occlusal morphology of artificial teeth improve chewing of removable dentures wearers? 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