{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T00:19:18Z","timestamp":1778199558978,"version":"3.51.4"},"reference-count":32,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2022,9,13]],"date-time":"2022-09-13T00:00:00Z","timestamp":1663027200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministry of Trade, Industry, and Energy (MOTIE)"},{"name":"Korea Institute for Advancement of Technology (KIAT)"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Bioengineering"],"abstract":"<jats:p>This study aimed to examine the differences in healing patterns using two types of diode laser devices (laser A and laser B) and a steel scalpel for periodontal surgery through histological and immunohistochemical methods. Twenty 12-week-old male rats were assigned to three groups (3, 7, and 14 days). Square-shaped erosion wounds (2 \u00d7 2 mm2 diameter) were created on the hard palate of each rat. Two wounds were created using Laser A and a steel scalpel (Bard-Parker No. 15) on the right palate and using Laser B and a steel scalpel on the left side. Rats were sacrificed after 3, 7, and 14 days. Tissues were collected with a margin of 1 mm from the border of the erosional wound of the maxillary hard palate. Histological and immunohistochemical analyses were performed on the tissue samples after 3, 7, and 14 days. The tissue healing pattern and expression of inducible nitric oxide synthase (iNOS) and cluster of differentiation (CD) were observed under a light microscope. Statistical analysis was conducted using the Kruskal\u2013Wallis H test for comparison among the groups (\u03b1 = 0.05). In comparison to the wounds made with the scalpel, wounds treated with lasers A and B showed delayed healing patterns. There was no significant difference between the two laser treatment groups (p &gt; 0.05). The expression of iNOS and CD68 was not significantly different among the three groups after 3 and 7 days (p &gt; 0.05). On day 14, the groups treated with the dental diode lasers showed higher expression than the group treated with the steel scalpel, but no significant difference was observed (p &gt; 0.05). Laser-induced wounds tended to heal slower than surgical wounds performed using a steel scalpel, but histological and immunohistochemical results showed no significant difference between the dental diode laser and scalpel groups.<\/jats:p>","DOI":"10.3390\/bioengineering9090466","type":"journal-article","created":{"date-parts":[[2022,9,13]],"date-time":"2022-09-13T21:06:52Z","timestamp":1663103212000},"page":"466","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["A Comparative Immunohistochemical Study of Wound Healing after Dental Diode Laser Treatment in the Rat Oral Mucosa"],"prefix":"10.3390","volume":"9","author":[{"given":"Hye Rin","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Periodontology, School of Dentistry, Kyungpook National University, Daegu 41940, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3177-8005","authenticated-orcid":false,"given":"Keunbada","family":"Son","sequence":"additional","affiliation":[{"name":"Advanced Dental Device Development Institute (A3DI), Kyungpook National University, Daegu 41940, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2793-7667","authenticated-orcid":false,"given":"Young-Tak","family":"Son","sequence":"additional","affiliation":[{"name":"Advanced Dental Device Development Institute (A3DI), Kyungpook National University, Daegu 41940, Korea"},{"name":"Department of Dental Science, Graduate School, Kyungpook National University, Daegu 41940, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yong-Gun","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Periodontology, School of Dentistry, Kyungpook National University, Daegu 41940, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1838-7229","authenticated-orcid":false,"given":"Kyu-Bok","family":"Lee","sequence":"additional","affiliation":[{"name":"Advanced Dental Device Development Institute (A3DI), Kyungpook National University, Daegu 41940, Korea"},{"name":"Department of Prosthodontics, School of Dentistry, Kyungpook National University, Daegu 41940, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seung Cheol","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Pathology, Andong General Hospital, Andong-si 36743, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jo-Young","family":"Suh","sequence":"additional","affiliation":[{"name":"Department of Periodontology, School of Dentistry, Kyungpook National University, Daegu 41940, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jae Mok","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Periodontology, School of Dentistry, Kyungpook National University, Daegu 41940, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"764","DOI":"10.1016\/j.tripleo.2006.08.002","article-title":"A preliminary study of healing of dental diode laser versus scalpel incisions in rat oral tissue: A comparison of clinical, histological, and immunohistochemical results","volume":"103","author":"Prosperi","year":"2007","journal-title":"Oral Surg. 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Acta"}],"container-title":["Bioengineering"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2306-5354\/9\/9\/466\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:30:11Z","timestamp":1760142611000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2306-5354\/9\/9\/466"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,9,13]]},"references-count":32,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2022,9]]}},"alternative-id":["bioengineering9090466"],"URL":"https:\/\/doi.org\/10.3390\/bioengineering9090466","relation":{},"ISSN":["2306-5354"],"issn-type":[{"value":"2306-5354","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,9,13]]}}}