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This clinical trial aimed to evaluate the short-term clinical effectiveness of and patient-reported outcomes of the LCT technique when used in combination with either connective tissue graft (CTG) or collagen matrix (CM).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and methods<\/jats:title>\n                    <jats:p>A total of forty patients were randomly assigned to either the control group (LCT\u2009+\u2009CTG) or the test group (LCT\u2009+\u2009CM) for localized GR type 1 treatment. Primary outcome measures included recession depth (RD), recession width (RW), root coverage percentages (MRC%), and complete root coverage percentage (CRC%). Secondary outcomes included gingival thickness (GT), keratinized tissue width (KTW), clinical attachment level (CAL), attached gingiva width (AGW), root coverage esthetic score (RES), and patient-reported outcome measures (PROMs). Clinical evaluations were performed at baseline, 3 months, and 6 months after treatment.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      At both 3 and 6 months postoperatively, the primary outcomes (RD, RW, MRC%, and CRC%) showed significant improvement (MRC% 93.98\u2009\u00b1\u20098.58% and 87.24\u2009\u00b1\u200913.70%, and CRC% 90% after 6 months;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). All the secondary outcomes, including (GT, KTW, CAL, AGW, RES, and PROMs were also significantly improved at the end of the study in both groups (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The LCT technique proved to be an effective technique for localized recession type 1 treatment when used in combination with CTG or CM.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical relevance<\/jats:title>\n                    <jats:p>Both grafting materials used in combination with the LCT technique resulted in favorable short-term clinical and esthetic outcomes for localized gingival recession.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial registration<\/jats:title>\n                    <jats:p>\n                      The current clinical trial was retrospectively registered in ClinicalTrials.gov (ID: NCT06065774) and initially released in 13-09-2023 and finally released in 18-11-2024.\n                      <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"https:\/\/register.clinicaltrials.gov\/prs\/beta\/studies\/S000CV1L00000057\/recordSummary\" ext-link-type=\"uri\">https:\/\/register.clinicaltrials.gov\/prs\/beta\/studies\/S000CV1L00000057\/recordSummary<\/jats:ext-link>\n                      .\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s12903-025-07515-9","type":"journal-article","created":{"date-parts":[[2026,1,6]],"date-time":"2026-01-06T07:23:53Z","timestamp":1767684233000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Comparative evaluation of the laterally closed tunnel technique with connective tissue graft and collagen matrix for treating localized type 1 gingival recession: a randomized, controlled clinical trial"],"prefix":"10.1186","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5731-7629","authenticated-orcid":false,"given":"Ahmed","family":"ElBana","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wafaa","family":"Saleh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jilan","family":"Youssef","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,1,6]]},"reference":[{"issue":"2","key":"7515_CR1","first-page":"220","volume":"134","author":"MM Kassab","year":"2003","unstructured":"Kassab MM, Cohen REJ. 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Informed consent was obtained from all participants before enrollment. Our study adhered to the Declaration of Helsinki - Ethical principles for Medical Research Involving Human Participants.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not relevant.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"184"}}