{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,16]],"date-time":"2026-02-16T10:02:11Z","timestamp":1771236131802,"version":"3.50.1"},"reference-count":43,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2026,2,14]],"date-time":"2026-02-14T00:00:00Z","timestamp":1771027200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Dentistry Journal"],"abstract":"<jats:p>Background\/Objectives: Bulk-fill (BF) resin-based composites (RBCs) have become increasingly popular due to their efficient placement. However, there is a lack of comprehensive performance comparisons among commercially available BF RBCs. In standardized curing conditions, this study aimed to compare the mechanical performance, water sorption and solubility, surface roughness, and color stability of commercially available BF RBCs with different consistencies (flowable and packable). Methods: Ten BF RBCs, along with a conventional RBC (control), were evaluated. Flexural strength and elastic modulus were measured using a three-point bending test. Water sorption and solubility were assessed after 28-day water storage. Color (\u0394E00) and surface roughness (\u0394Ra) changes were measured after 28-day immersion in water, Pepsi, or coffee. One-way ANOVA and Tukey\u2019s tests analyzed the data. Results: 3M Flow, Shofu Bulk, and Ivoclar Flow revealed lower strength (p &lt; 0.001) compared to 3M Bulk (132.17 \u00b1 12.54 MPa) and the control (124.56 \u00b1 15.60 MPa). Shofu Bulk (24.68 \u00b1 12.55 \u00b5g\/mm3) and Ivoclar Flow (27.11 \u00b1 6.27 \u00b5g\/mm3) were the least affected by water sorption. While Shofu Bulk (13.98 \u00b1 11.39 \u00b5g\/mm3), Ivoclar Flow (20.28 \u00b1 6.64 \u00b5g\/mm3), and SDR (20.84 \u00b1 9.74 \u00b5g\/mm3) exhibited the lowest solubility (p &lt; 0.01). After water and Pepsi immersion, FGM Bulk showed a significant color change compared to 3M Bulk and Ivoclar Bulk (p &lt; 0.05). Following coffee immersion, Shofu Bulk (17.38 \u00b1 1.82) revealed significant color changes (p &lt; 0.001). Increased surface roughness was observed in 3M Bulk and Ivoclar Bulk after water immersion, Shofu Bulk after Pepsi immersion, and FGM Bulk after coffee immersion. Conclusions: BF RBCs exhibit notable variability in their intrinsic properties. 3M Bulk and Control showed the highest strength, while Shofu Bulk had significant color changes.<\/jats:p>","DOI":"10.3390\/dj14020117","type":"journal-article","created":{"date-parts":[[2026,2,16]],"date-time":"2026-02-16T08:38:39Z","timestamp":1771231119000},"page":"117","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Comparative Evaluation of Commercial Bulk-Fill Resin-Based Composites: Flexural Properties, Roughness, Water Sorption and Solubility, and Color Stability"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4163-7342","authenticated-orcid":false,"given":"Khalid S.","family":"Almulhim","sequence":"first","affiliation":[{"name":"Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sarah M.","family":"Alghamdi","sequence":"additional","affiliation":[{"name":"College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Raghad S.","family":"Alqahtani","sequence":"additional","affiliation":[{"name":"College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-9151-3104","authenticated-orcid":false,"given":"Jood K.","family":"Alsahiem","sequence":"additional","affiliation":[{"name":"College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0413-8387","authenticated-orcid":false,"given":"Afnan O.","family":"Al-Zain","sequence":"additional","affiliation":[{"name":"Department of Restorative Dentistry, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3193-2356","authenticated-orcid":false,"given":"Mohammed M.","family":"Gad","sequence":"additional","affiliation":[{"name":"Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6678-7940","authenticated-orcid":false,"given":"Abdulrahman A.","family":"Balhaddad","sequence":"additional","affiliation":[{"name":"Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,2,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"190","DOI":"10.2341\/13-324-L","article-title":"Bulk-Fill Resin Composites: Polymerization Contraction, Depth of Cure, and Gap Formation","volume":"40","author":"Benetti","year":"2015","journal-title":"Oper. 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