{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T05:58:32Z","timestamp":1777355912289,"version":"3.51.4"},"reference-count":40,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,4,27]],"date-time":"2026-04-27T00:00:00Z","timestamp":1777248000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,4,27]],"date-time":"2026-04-27T00:00:00Z","timestamp":1777248000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100008376","name":"Helsingin ja Uudenmaan Sairaanhoitopiiri","doi-asserted-by":"publisher","award":["TYH2022225"],"award-info":[{"award-number":["TYH2022225"]}],"id":[{"id":"10.13039\/100008376","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100008376","name":"Helsingin ja Uudenmaan Sairaanhoitopiiri","doi-asserted-by":"publisher","award":["TYH2018229"],"award-info":[{"award-number":["TYH2018229"]}],"id":[{"id":"10.13039\/100008376","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100008376","name":"Helsingin ja Uudenmaan Sairaanhoitopiiri","doi-asserted-by":"publisher","award":["TYH2019319"],"award-info":[{"award-number":["TYH2019319"]}],"id":[{"id":"10.13039\/100008376","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100008376","name":"Helsingin ja Uudenmaan Sairaanhoitopiiri","doi-asserted-by":"publisher","award":["Y1014SL017"],"award-info":[{"award-number":["Y1014SL017"]}],"id":[{"id":"10.13039\/100008376","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100008376","name":"Helsingin ja Uudenmaan Sairaanhoitopiiri","doi-asserted-by":"publisher","award":["Y1014SL018"],"award-info":[{"award-number":["Y1014SL018"]}],"id":[{"id":"10.13039\/100008376","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100008376","name":"Helsingin ja Uudenmaan Sairaanhoitopiiri","doi-asserted-by":"publisher","award":["Y1014SULE1"],"award-info":[{"award-number":["Y1014SULE1"]}],"id":[{"id":"10.13039\/100008376","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100008376","name":"Helsingin ja Uudenmaan Sairaanhoitopiiri","doi-asserted-by":"publisher","award":["Y2114SU010"],"award-info":[{"award-number":["Y2114SU010"]}],"id":[{"id":"10.13039\/100008376","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Gerodontology"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>The objective of this study is to investigate the effect of dual\u2010light antimicrobial photodynamic therapy (aPDT) on oral health among older people living in assisted living facilities (ALF), comparing it to conventional oral self\u2010care guidance.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In this parallel\u2010group, two\u2010arm randomized controlled pilot study, functional older adults living in assisted living facilities were randomized in a 1:1 allocation ratio to receive either conventional oral self\u2010care guidance or guidance combined with regular dual\u2010light aPDT home\u2010care device. Clinical measurements, VPI (Visible Plaque Index) and CPITN (Community Periodontal Index of Treatment Needs), were conducted on\u2010site using a mobile dental chair, and participants completed questionnaires on self\u2010care habits, motivation, and oral dryness. Mouthrinse aMMP\u20108 levels were measured using a point\u2010of\u2010care assay. The follow\u2010up period was 2\u2009months. An intention\u2010to\u2010treat analysis was performed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The final analysis included data on twenty\u2010eight consented participants aged 51 to 95, of whom 17 were female and 11 were male. A significant reduction in dental biofilm was observed in both groups based on VPI measurements. Participants in the treatment group showed a significant improvement in periodontal health according to CPITN (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.0006), but that was not apparent in the control group. aMMP\u20108 mouthrinse positivity reduced in both groups. Objectively measured oral dryness improved in both groups.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Dual\u2010light aPDT may be an effective adjunct to conventional oral self\u2010care in assisted living facilities.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/ger.70077","type":"journal-article","created":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T05:25:42Z","timestamp":1777353942000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Effects of Regular Dual\u2010Light Antibacterial Photodynamic Therapy on Oral Health in Assisted Living Residents\u2014A\u00a0Randomized Controlled Trial"],"prefix":"10.1111","author":[{"given":"Wilma","family":"Romppanen","sequence":"first","affiliation":[{"name":"Department of Oral and Maxillofacial Diseases University of Helsinki and Helsinki University Hospital  Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8843-0272","authenticated-orcid":false,"given":"Jaana","family":"Helenius\u2010Hietala","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Diseases University of Helsinki and Helsinki University Hospital  Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-2878-6541","authenticated-orcid":false,"given":"Saila","family":"Pakarinen","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Diseases University of Helsinki and Helsinki University Hospital  Helsinki Finland"},{"name":"Degree Program of Oral Hygiene Metropolia University of Applied Sciences  Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sanna","family":"Korte","sequence":"additional","affiliation":[{"name":"Social Services, Health Care and Rescue Services Division Oral Health Care  City of Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1850-1757","authenticated-orcid":false,"given":"Riitta","family":"Saarela","sequence":"additional","affiliation":[{"name":"Social Services, Health Care and Rescue Services Division Oral Health Care  City of Helsinki Finland"},{"name":"Department of General Practice and Primary Health Care University of Helsinki  Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3252-192X","authenticated-orcid":false,"given":"Anna Maria","family":"Heikkinen","sequence":"additional","affiliation":[{"name":"Faculty of Medicine and Health Technology University of Tampere  Tampere Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7914-3052","authenticated-orcid":false,"given":"Timo","family":"Sorsa","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Diseases University of Helsinki and Helsinki University Hospital  Helsinki Finland"},{"name":"Division of Periodontology, Department of Dental Medicine Karolinska Institutet  Huddinge Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2219-4689","authenticated-orcid":false,"given":"Tommi","family":"P\u00e4til\u00e4","sequence":"additional","affiliation":[{"name":"Department of Pediatric Heart Surgery and Organ Transplantation, New Children's Hospital Helsinki University  Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2026,4,27]]},"reference":[{"issue":"3","key":"e_1_2_11_2_1","first-page":"143","article-title":"The Oral Health Condition and Treatment Needs Assessment of Nursing Home Residents in Flanders (Belgium)","volume":"34","author":"Janssens B.","year":"2017","journal-title":"Community Dental Health"},{"issue":"1","key":"e_1_2_11_3_1","doi-asserted-by":"crossref","first-page":"213","DOI":"10.1007\/s41999-021-00547-8","article-title":"Oral Hygiene and Health\u2010Related Quality of Life in Institutionalized Older People","volume":"13","author":"Saarela R. 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