{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T04:54:19Z","timestamp":1787028859471,"version":"build-2736575974"},"reference-count":94,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2025,11,27]],"date-time":"2025-11-27T00:00:00Z","timestamp":1764201600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Introduction: Fluoride-releasing sealants play a crucial role in caries prevention by providing both mechanical protection and controlled ion release. However, the rate and duration of fluoride emission vary depending on material composition and environmental conditions. Objectives: This systematic review aimed to identify and analyze factors influencing fluoride release and recharge capacity from contemporary dental sealants. Methods: A comprehensive literature search was conducted in September 2025 across PubMed, Scopus, Web of Science, Embase, and WorldCat using the keywords \u201cfluoride release\u201d AND \u201csealant.\u201d Study selection followed PRISMA 2020 guidelines and predefined PICO-based eligibility criteria. Out of the 375 records initially identified, 16 studies fulfilled the inclusion criteria and were incorporated into the qualitative analysis. Results: Glass-ionomer and resin-modified glass-ionomer sealants (e.g., Fuji VII, Fuji IX, Fuji II LC, Ketac Molar, Vitremer) consistently demonstrated higher fluoride release and superior recharge capacity compared with resin-based sealants (e.g., Clinpro, Helioseal F, BeautiSealant). Most studies reported a biphasic fluoride-release pattern, characterized by an initial burst within the first 24\u201348 h followed by a slower, sustained phase lasting several weeks. Environmental parameters, including storage medium, pH, and temperature, significantly affected fluoride-release kinetics. Additional outcomes such as enamel remineralization, antibacterial activity, microleakage, and surface hardness were also reported. Conclusions: Both material composition and environmental factors substantially influence fluoride release from dental sealants. Glass-ionomer\u2013based materials demonstrate more durable and higher fluoride release, with acidic conditions enhancing ion diffusion. Clinically, these materials are particularly beneficial for patients at high caries risk, whereas resin-based sealants remain preferable in low-risk cases due to better retention and esthetics.<\/jats:p>","DOI":"10.3390\/ma18235350","type":"journal-article","created":{"date-parts":[[2025,11,28]],"date-time":"2025-11-28T08:26:57Z","timestamp":1764318417000},"page":"5350","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Evaluation of Factors Affecting Fluoride Release from Dental Sealants: A Systematic Review"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2368-1534","authenticated-orcid":false,"given":"Maciej","family":"Dobrzy\u0144ski","sequence":"first","affiliation":[{"name":"Department of Pediatric Dentistry and Preclinical Dentistry, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sylwia","family":"Klimas","sequence":"additional","affiliation":[{"name":"Department of Pediatric Dentistry and Preclinical Dentistry, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-4353-4607","authenticated-orcid":false,"given":"Agnieszka","family":"Kotela","sequence":"additional","affiliation":[{"name":"Medical Center of Innovation, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zuzanna","family":"Majchrzak","sequence":"additional","affiliation":[{"name":"Medical Center of Innovation, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-1680-793X","authenticated-orcid":false,"given":"Julia","family":"Kensy","sequence":"additional","affiliation":[{"name":"Department of Pediatric Dentistry and Preclinical Dentistry, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marzena","family":"Laszczy\u0144ska","sequence":"additional","affiliation":[{"name":"Medical Center of Innovation, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Witold","family":"\u015awienc","sequence":"additional","affiliation":[{"name":"Dental Surgery Department, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Natalia","family":"Grychowska-G\u0105sior","sequence":"additional","affiliation":[{"name":"Department of Dental Prosthetics, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-6751-9187","authenticated-orcid":false,"given":"Magdalena","family":"Fast","sequence":"additional","affiliation":[{"name":"Department of Drug Form Technology, Wroclaw Medical University, Borowska 211 A, 50-556 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3801-0218","authenticated-orcid":false,"given":"Jacek","family":"Matys","sequence":"additional","affiliation":[{"name":"Medical Center of Innovation, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland"},{"name":"Dental Surgery Department, Wroclaw Medical University, Krakowska 26, 50-425 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,11,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"241","DOI":"10.17219\/dmp\/151702","article-title":"Comparison of the Effects of Fluoride Varnish Containing Silver Nanoparticles and Conventional Fluoride Varnish on the Surface Microhardness of Tooth Enamel","volume":"61","author":"Kooshki","year":"2024","journal-title":"Dent. 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