{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T03:43:36Z","timestamp":1780544616375,"version":"3.54.1"},"reference-count":24,"publisher":"BMJ","issue":"10","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2024,9,18]]},"published-print":{"date-parts":[[2024,10]]},"abstract":"<jats:p>Diode lasers are one of the most widely used modalities in soft tissue dental surgery. Recent advancements have expanded the clinically useful emission spectrum of diode lasers to include the blue light region, corresponding to wavelengths such as 445 and 450\u2009nm. The melanin present in hyperpigmented gingiva acts as a chromophore and absorbs laser energy, thus facilitating the denaturing of melanin-containing cells in the gingiva. This paper presents a case of ethnicity-related gingival hyperpigmentation that was successfully treated using a 445\u2009nm blue wavelength soft tissue diode laser by non-ablative technique. The treated area showed no recurrence of pigmentation up to 9 months postoperatively.<\/jats:p>","DOI":"10.1136\/bcr-2024-260493","type":"journal-article","created":{"date-parts":[[2024,10,25]],"date-time":"2024-10-25T01:35:20Z","timestamp":1729820120000},"page":"e260493","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":5,"title":["Blue laser-assisted depigmentation of gingiva using non-ablative technique"],"prefix":"10.1136","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6743-7843","authenticated-orcid":false,"given":"Aehad Ul","family":"Haque","sequence":"first","affiliation":[{"name":"Periodontology, King George's Medical University, Lucknow, Uttar Pradesh, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pavitra Kumar","family":"Rastogi","sequence":"additional","affiliation":[{"name":"Periodontology, King George's Medical University, Lucknow, Uttar Pradesh, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nand","family":"Lal","sequence":"additional","affiliation":[{"name":"Periodontology, King George's Medical University, Lucknow, Uttar Pradesh, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rameshwari","family":"Singhal","sequence":"additional","affiliation":[{"name":"Periodontology, King George's Medical University, Lucknow, Uttar Pradesh, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2024,10,24]]},"reference":[{"key":"2025082712080740000_17.10.e260493.1","doi-asserted-by":"crossref","first-page":"447","DOI":"10.3889\/oamjms.2015.071","article-title":"Treatment of Gingival Hyperpigmentation by Diode Laser for Esthetical Purposes","volume":"3","author":"El Shenawy","year":"2015","journal-title":"Open Access Maced J Med 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Impact of laser dentistry in management of color in aesthetic zone. In: Coluzzi DJ , Steven PAP , eds. Lasers in dentistry\u2014current concepts. 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