{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,31]],"date-time":"2026-10-31T18:23:04Z","timestamp":1793470984328,"version":"4.5.0"},"reference-count":24,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2012,10,16]],"date-time":"2012-10-16T00:00:00Z","timestamp":1350345600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["European J Oral Sciences"],"published-print":{"date-parts":[[2012,12]]},"abstract":"<jats:p>A powder jet deposition (<jats:styled-content style=\"fixed-case\">PJD<\/jats:styled-content>) process can be used to create a thick hydroxyapatite (<jats:styled-content style=\"fixed-case\">HA<\/jats:styled-content>) film on the surface of a human tooth. This study aimed to investigate in vitro the ability of an <jats:styled-content style=\"fixed-case\">HA<\/jats:styled-content> film, applied using <jats:styled-content style=\"fixed-case\">PJD<\/jats:styled-content>, to diminish dentin permeability. Discs of human coronal dentin were cut perpendicular to the tooth axis and the smear layer was removed by <jats:styled-content style=\"fixed-case\">EDTA<\/jats:styled-content> treatment. The <jats:styled-content style=\"fixed-case\">HA<\/jats:styled-content> film was created by accelerating <jats:styled-content style=\"fixed-case\">HA<\/jats:styled-content> particles, calcinated at 1200\u00b0C, onto the dentin discs at room temperature and atmospheric pressure. The surfaces and cross\u2010sections of the <jats:styled-content style=\"fixed-case\">HA PJD<\/jats:styled-content>\u2010treated samples were observed using scanning electron microscopy. Their permeability was indirectly recorded with a split\u2010chamber device utilizing a chemiluminescence technique. <jats:styled-content style=\"fixed-case\">MS<\/jats:styled-content>\u2010coat, a commercial dentin\u2010desensitizing agent, was also evaluated for its effect on reducing liquid flow through the dentin. The scanning electron microscopy images showed that the <jats:styled-content style=\"fixed-case\">HA<\/jats:styled-content> particles were successfully deposited onto the dentin and solidly into the dentin tubules. The permeability of dentin after application of the <jats:styled-content style=\"fixed-case\">HA<\/jats:styled-content> films was significantly lower than that following application of <jats:styled-content style=\"fixed-case\">MS<\/jats:styled-content>\u2010coat. This study showed the potential clinical application of <jats:styled-content style=\"fixed-case\">PJD<\/jats:styled-content> techniques in desensitizing dentin hypersensitivity.<\/jats:p>","DOI":"10.1111\/j.1600-0722.2012.01003.x","type":"journal-article","created":{"date-parts":[[2012,10,16]],"date-time":"2012-10-16T11:36:21Z","timestamp":1350387381000},"page":"558-562","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Effect of hydroxyapatite film formed by powder jet deposition on dentin permeability"],"prefix":"10.1111","volume":"120","author":[{"given":"Ryo","family":"Akatsuka","sequence":"first","affiliation":[{"name":"Division of Advanced Prosthetic Dentistry Tohoku University Graduate School of Dentistry Sendai"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroshi","family":"Ishihata","sequence":"additional","affiliation":[{"name":"Department of Endodontics and Periodontics Tohoku 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